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Lot 15

BOODLES, A RARE AND EXCEPTIONAL 4.13 CARAT PINK DI ...

BOODLES, A RARE AND EXCEPTIONAL 4.13 CARAT PINK DIAMOND RING in platinum, set with a pear mixed cut fancy orangy pink diamond of 4.13 carats in a double halo of round brilliant cut diamonds, the accenting diamonds all totalling 0.80 carats, signed Bo
BOODLES, A RARE AND EXCEPTIONAL 4.13 CARAT PINK DIAMOND RING in platinum, set with a pear mixed cut fancy orangy pink diamond of 4.13 carats in a double halo of round brilliant cut diamonds, the accenting diamonds all totalling 0.80 carats, signed Bo
BOODLES, A RARE AND EXCEPTIONAL 4.13 CARAT PINK DIAMOND RING in platinum, set with a pear mixed cut fancy orangy pink diamond of 4.13 carats in a double halo of round brilliant cut diamonds, the accenting diamonds all totalling 0.80 carats, signed Bo
BOODLES, A RARE AND EXCEPTIONAL 4.13 CARAT PINK DIAMOND RING in platinum, set with a pear mixed cut fancy orangy pink diamond of 4.13 carats in a double halo of round brilliant cut diamonds, the accenting diamonds all totalling 0.80 carats, signed Bo
BOODLES, A RARE AND EXCEPTIONAL 4.13 CARAT PINK DIAMOND RING in platinum, set with a pear mixed cut fancy orangy pink diamond of 4.13 carats in a double halo of round brilliant cut diamonds, the accenting diamonds all totalling 0.80 carats, signed Bo

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BOODLES, A RARE AND EXCEPTIONAL 4.13 CARAT PINK DIAMOND RING in platinum, set with a pear mixed cut fancy orangy pink diamond of 4.13 carats in a double halo of round brilliant cut diamonds, the accenting diamonds all totalling 0.80 carats, signed Bo
BOODLES, A RARE AND EXCEPTIONAL 4.13 CARAT PINK DIAMOND RING in platinum, set with a pear mixed cut fancy orangy pink diamond of 4.13 carats in a double halo of round brilliant cut diamonds, the accenting diamonds all totalling 0.80 carats, signed Bo
BOODLES, A RARE AND EXCEPTIONAL 4.13 CARAT PINK DIAMOND RING in platinum, set with a pear mixed cut fancy orangy pink diamond of 4.13 carats in a double halo of round brilliant cut diamonds, the accenting diamonds all totalling 0.80 carats, signed Bo
BOODLES, A RARE AND EXCEPTIONAL 4.13 CARAT PINK DIAMOND RING in platinum, set with a pear mixed cut fancy orangy pink diamond of 4.13 carats in a double halo of round brilliant cut diamonds, the accenting diamonds all totalling 0.80 carats, signed Bo
BOODLES, A RARE AND EXCEPTIONAL 4.13 CARAT PINK DIAMOND RING in platinum, set with a pear mixed cut fancy orangy pink diamond of 4.13 carats in a double halo of round brilliant cut diamonds, the accenting diamonds all totalling 0.80 carats, signed Bo

Lot 15

BOODLES, A RARE AND EXCEPTIONAL 4.13 CARAT PINK DI ...

Estimate £400,000 - £600,000

Description

BOODLES, A RARE AND EXCEPTIONAL 4.13 CARAT PINK DIAMOND RING in platinum, set with a pear mixed cut fancy orangy pink diamond of 4.13 carats in a double halo of round brilliant cut diamonds, the accenting diamonds all totalling 0.80 carats, signed Boodles and numbered, full British hallmarks for London 2019, size M / 6.25, 11.7g. Accompanied by a Boodles creation book and facsimile GIA report stating that the diamond is fancy orangy pink colour and VS1 clarity.

 

Few jewels capture the imagination and ignite desire quite like a natural pink diamond - and fewer still do so with the dramatic presence, scale and poetic design of this remarkable 4.13 carat ring by Boodles. Impeccably set by the celebrated jeweller, Boodles, this ring combines masterful British craftsmanship with one of nature’s rarest and most captivating phenomena, and stands as a triumph of both gemmology and artistry. 

 

RARITY BEYOND COMPARE

Certified by the Gemological Institute of America (GIA) as being of Fancy Orangy Pink colour, the principal diamond exhibits an exquisitely warm and even hue, alive with both vibrancy and depth. Pink diamonds of this value are exceptionally rare: of all diamonds mined globally, less than 0.01% qualify as pink, and of those diamonds only a minuscule fraction of stones reach and exceed sizes of 4.00 carats, as it the case with this stone.

Pink diamonds remain among the rarest and most coveted gemstones on earth. While many fancy coloured diamonds owe their hues to trace chemical elements, pink diamonds are a singular exception. Their blush tone is born not of impurities, but of intense pressure-induced distortion in the diamond’s crystal lattice, which causes a selective absorption of light, in turn creating their signature colour. This natural miracle, formed deep within the earth over billions of years, results in a gem which defies replication, placing pink diamonds in a league of their own. 

 

THE ARGYLE MINE: A DIAMOND LEGACY

The Argyle mine in Western Australia, operational from 1983 until its closure in November 2020, was the world's predominant source of pink diamonds, producing over 90% of the global supply. However, even at its peak, pink diamonds constituted a mere 0.1% of the mine's output. The cessation of mining activities has rendered these gems even more elusive, with the remaining inventory likened to a "mere teaspoonful" . With no comparable source replacing Argyle’s yield, the market has entered a new era of diminishing supply — and increasing demand — for top-quality pink diamonds, especially those over a carat.

 

PERFORMANCE OUTPACING THE MARKET

Over the past two decades, pink diamonds have not only held their value — they have soared. Between 2005 and 2020, prices for pink diamonds rose by more than 500% [1]. A study by the Fancy Color Research Foundation found that over a 10-year period, pink diamonds outperformed the S&P 500, Dow Jones, and even gold [2], demonstrating remarkable stability and appreciation. The Australian Diamond Portfolio reported that pink diamonds increased in value by an average of 12–15% annually, consistently outpacing traditional equities [3].

In the years following the closure of the Argyle mine, demand has only intensified. Record-breaking prices at global auctions — such as the 59.60 carat Pink Star, which sold for $71.2 million at Sotheby’s in 2017 — have solidified pink diamonds as one of the most resilient and appreciating assets in the world [4].

 

A ROYAL AND NOBLE HISTORY

Pink diamonds have long captured the fascination of royalty and connoisseurs. The Darya-i-Nur, believed to weigh between 175 and 195 carats, has adorned the Iranian crown jewels for centuries [5]. The Williamson Pink Diamond, presented to Queen Elizabeth II as a wedding gift in 1947, was later set into a Cartier brooch worn on numerous royal occasions and is currently on view at the Victoria & Albert Museum [6]. More recently, the 24.78 carat Graff Pink, once owned by Harry Winston, sold at auction for $46 million [7]. These stones have not only adorned royalty — they have become symbols of legacy, power, and permanence.

 

THE BOODLES SIGNATURE: A SIGN OF EXCELLENCE

Established in 1798, Boodles has cemented its reputation as a maker of exceptional jewellery, seamlessly blending traditional craftsmanship with innovative contemporary design. Their affinity for pink diamonds is well-documented, with the house often showcasing these gems in creations exuding elegance and highlighting the exceptional gems they contain.

 

THE DIAMOND: A JEWEL OF DISTINCTION

Accompanied by its original Boodles creation book and a facsimile GIA report attesting to its Fancy Orangy Pink color and VS1 clarity, this ring is more than a piece of jewellery—it is a testament to nature's artistry and human craftsmanship.  It is an heirloom of future significance, a wearable investment, and a statement of personal taste. Its extraordinary presence on the hand is matched by its extraordinary scarcity on the market.

For collectors, connoisseurs, and those with a deep appreciation for natural beauty in its most refined form, this is a once-in-a-decade opportunity. It may be many years before a pink diamond of such quality — both in size and setting — appears again. Its emergence in the market presents a rare opportunity for collectors and connoisseurs to acquire a gem of profound significance and enduring value.

References

  1. Financial Times (2020). Investment in Rare Pink Diamonds Soars Post-Argyle Closure. FT.com. Available at: https://www.ft.com/content/5e7dbafe-7bdb-11e4-a695-00144feabdc0
  2. Fancy Color Research Foundation (2021). 10-Year Diamond Index Performance Report. Available at: https://www.fcresearch.org
  3. Australian Diamond Portfolio (2022). Pink Diamonds vs Shares: A 15-Year Comparison. Available at: https://www.diamondportfolio.com.au/news/pink-diamonds-vs-shares/
  4. Sotheby’s (2017). The Pink Star Sells for World Record $71.2 Million. Sothebys.com. Available at: https://www.sothebys.com/en/articles/the-pink-star-sets-world-record
  5. Gemological Institute of America (GIA) (2015). Darya-i-Nur and the Iranian Crown Jewels. Available at: https://www.gia.edu/UK-EN/news-research-darya-i-nur
  6. Royal Collection Trust (2022). Williamson Diamond Brooch. Royal.uk. Available at: https://www.rct.uk/collection/themes/exhibitions/platinum-jubilee/
  7. Christie's (2010). The Graff Pink: One of the Greatest Diamonds Ever Offered at Auction. Christies.com. Available at: https://www.christies.com/en/lot/lot-5370911

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We are pleased to offer a comprehensive shipping service, in which all items are sent insured to their full value. Our shipping costs are as follows:

(i) Domestic UK packages are charged according to the below pricing bands, dependent on the invoice amount:

Band A - £1 - £2,500. Cost is £20.00
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Band B - £4,001 - £6,000 Cost is £40.00
Band C- £6,001 - £8,000 Cost is £50.00
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Band E - £10,001 - £15,000 Cost is £70.00
Band F - £15,001 and above Cost is £80.00

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LOT 6

CARTIER, A GOLD ECROU DE CARTIER RING in 18ct yellow gold, the ridged band with five nut motifs, signed Cartier and numbered, stamped Au 750, Cartier size 52, size L1/2 / 6, 7.9g. Accompanied by a Cartier certificate of authenticity and jewellery box

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LOT 8

MAUBOUSSIN, A DIAMOND AND ENAMEL DRESS RING in 18ct yellow gold, set with round brilliant cut diamonds, accented by segments of green, blue and white enamel, signed Mauboussin Paris and numbered, French maker's mark, French assay marks, stamped 18KTS

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LOT 12

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LOT 16

A FINE BURMA NO HEAT RUBY AND DIAMOND THREE STONE RING in 18ct white gold, set with a cushion cut ruby of 4.67 carats between two transitional cut diamonds weighing 1.02 and 0.94 carats, full British hallmarks for Birmingham 1975, size O / 7.25, 4.8g

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Estimate £40,000 - £60,000

LOT 20

A VERY FINE BLACK OPAL AND DIAMOND DRESS RING set with a polished rounded triangular shaped black opal of approximately 4.87 carats, displaying bright flashes of red, blue, green, yellow and violet, accented by single cut diamonds to the bifurcated s

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Estimate £8,000 - £12,000

LOT 23

AN ART DECO CEYLON SAPPHIRE AND DIAMOND RING set with a cushion cut sapphire of approximately 6.00 carats, the gallery and shoulders set with single cut diamonds, no assay marks, size L1/2 / 6, 4.7g. Accompanied by a facsimile gemmological report sta

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Estimate £12,000 - £16,000

LOT 27

KUTCHINSKY, A YELLOW SAPPHIRE AND DIAMOND DRESS RING comprising a central section invisibly set with square step cut yellow sapphires, accented by segments pave set with round brilliant cut diamonds, the diamonds all totalling 1.2-1.4 carats, signed

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Estimate £1,800 - £2,200

LOT 31

A 36.83 CARAT BURMA NO HEAT SAPPHIRE AND DIAMOND RING set with a cushion cut sapphire of 36.83 carats, accented by pairs of baguette cut diamonds, no assay marks, size N1/2 / 7, 12.8g. Accompanied by a facsimile gemmological report stating the sapphi

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LOT 35

AN ANTIQUE DIAMOND CLUSTER RING in yellow gold and silver, set with a rose cut diamond of approximately 7.3mm x 7.4mm, within a cluster of further rose cut diamonds, no assay marks, size N / 6.75, 4.5g. 

AN ANTIQUE DIAMOND CLUSTER RING in yellow gold and silver, set with a rose cut diamond of approximately 7.3mm x 7.4mm, within a cluster of further rose cut diamonds, no assay marks, size N / 6.75, 4.5g. 

Estimate £3,000 - £5,000

LOT 38

A FINE SAPPHIRE AND DIAMOND THREE STONE RING in platinum, set with an octagonal step cut sapphire of approximately 3.29 carats, accented on each side by an old cut diamond, the diamonds totalling 1.4-1.6 carats, partial British hallmarks, size N1/2 /

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LOT 41

A 30.29 CARAT GREEN TOURMALINE AND DIAMOND RING in platinum, set with an octagonal step cut green tourmaline of 30.29 carats between pairs of trapezoid cut diamonds, the diamonds totalling 2.19 carats, inscribed T 30.29ct D2.19ct, full British hallma

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LOT 47

VAN CLEEF & ARPELS, A MOTHER OF PEARL MAGIC ALHAMBRA BETWEEN THE FINGER RING in 18ct white gold, designed as two quatrefoil motifs set with black and white mother of pearl, accented by beaded borders, signed VCA and numbered, partially obscured Frenc

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LOT 51

GRAFF, AN IMPORTANT 11.20 CARAT DIAMOND FULL ETERNITY RING set all around with a row of sixteen emerald cut diamonds totalling 11.0-11.2 carats, signed Graff and numbered, no assay marks, size K1/2 / 5.5, 12.1g. Accompanied by a Graff insurance valua

GRAFF, AN IMPORTANT 11.20 CARAT DIAMOND FULL ETERNITY RING set all around with a row of sixteen emerald cut diamonds totalling 11.0-11.2 carats, signed Graff and numbered, no assay marks, size K1/2 / 5.5, 12.1g. Accompanied by a Graff insurance valua

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LOT 54

A FINE CEYLON NO HEAT SAPPHIRE AND DIAMOND RING set with a cushion cut sapphire of 13.66 carats, the shoulders pave set with single cut diamonds and accented by cabochon sapphires, no assay marks, size O / 7.25, 7.0g. Accompanied by a gemmological re

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LOT 57

CARTIER, A DIAMOND DRESS RING in 18ct yellow gold, in crossover design, pave set with round brilliant cut diamonds totalling 1.1-1.3 carats, signed Cartier 1994 and numbered, French assay marks, stamped OR750, size M1/2 / 6.5, 7.3g. Accompanied by a

CARTIER, A DIAMOND DRESS RING in 18ct yellow gold, in crossover design, pave set with round brilliant cut diamonds totalling 1.1-1.3 carats, signed Cartier 1994 and numbered, French assay marks, stamped OR750, size M1/2 / 6.5, 7.3g. Accompanied by a

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LOT 62

CARTIER, A DIAMOND HEART ETERNITY RING comprising a row of ten heart motifs set with round brilliant cut diamonds, signed Cartier and numbered, stamped OR 750, size R1/2 / 8.75, 4.9g. Accompanied by a Cartier ring box. 

CARTIER, A DIAMOND HEART ETERNITY RING comprising a row of ten heart motifs set with round brilliant cut diamonds, signed Cartier and numbered, stamped OR 750, size R1/2 / 8.75, 4.9g. Accompanied by a Cartier ring box. 

Estimate £3,000 - £5,000

LOT 65

CHOPARD, A GOLD ICE CUBE RING designed as stylised cubes, signed Chopard and numbered, stamped 750, size M1/2 / 6.5, 15.2g. 

CHOPARD, A GOLD ICE CUBE RING designed as stylised cubes, signed Chopard and numbered, stamped 750, size M1/2 / 6.5, 15.2g. 

Estimate £800 - £1,200

LOT 72

A FINE CEYLON NO HEAT SAPPHIRE AND DIAMOND THREE STONE RING in platinum, set with a cushion cut sapphire of 5.19 carats, accented on each side by an old cut diamond weighing 1.03 and 1.04 carats respectively, partial British hallmarks, size O / 7.25,

A FINE CEYLON NO HEAT SAPPHIRE AND DIAMOND THREE STONE RING in platinum, set with a cushion cut sapphire of 5.19 carats, accented on each side by an old cut diamond weighing 1.03 and 1.04 carats respectively, partial British hallmarks, size O / 7.25,

Estimate £8,000 - £12,000

LOT 78

BOUCHERON, A 4.33 CARAT SOLITAIRE DIAMOND RING in platinum, set with an old European cut diamond of approximately 4.33 carats, the shoulders set with tapered baguette cut diamonds, signed Boucheron, French maker's mark, French assay marks, size J1/2

BOUCHERON, A 4.33 CARAT SOLITAIRE DIAMOND RING in platinum, set with an old European cut diamond of approximately 4.33 carats, the shoulders set with tapered baguette cut diamonds, signed Boucheron, French maker's mark, French assay marks, size J1/2

Estimate £50,000 - £70,000

LOT 81

A FINE 26.40 CARAT CEYLON NO HEAT YELLOW SAPPHIRE AND DIAMOND RING set with an oval cut yellow sapphire of 26.40 carats, the stepped shoulders set with old cut diamonds, no assay marks, size I1/2 / 4.5, 13.6g. With a verbal gemmological assessment st

A FINE 26.40 CARAT CEYLON NO HEAT YELLOW SAPPHIRE AND DIAMOND RING set with an oval cut yellow sapphire of 26.40 carats, the stepped shoulders set with old cut diamonds, no assay marks, size I1/2 / 4.5, 13.6g. With a verbal gemmological assessment st

Estimate £10,000 - £15,000

LOT 83

CARTIER, A DIAMOND RING pave set with a section of round brilliant cut diamonds, signed Cartier and numbered, indistinct French maker's mark, French assay marks, size K1/2 / 5.5, 7.2g. 

CARTIER, A DIAMOND RING pave set with a section of round brilliant cut diamonds, signed Cartier and numbered, indistinct French maker's mark, French assay marks, size K1/2 / 5.5, 7.2g. 

Estimate £3,000 - £5,000

LOT 86

AN AQUAMARINE AND DIAMOND RING set with an octagonal step cut aquamarine of approximately 24.94 carats, the gallery set with round brilliant cut diamonds totalling 1.3-1.5 carats, no assay marks, size O1/2 / 7.5, 12.5g. 

AN AQUAMARINE AND DIAMOND RING set with an octagonal step cut aquamarine of approximately 24.94 carats, the gallery set with round brilliant cut diamonds totalling 1.3-1.5 carats, no assay marks, size O1/2 / 7.5, 12.5g. 

Estimate £4,000 - £6,000

LOT 89

VAN CLEEF & ARPELS, A MOTHER OF PEARL PURE ALHAMBRA RING set with a quatrefoil shaped black mother of pearl, signed VCA and numbered, French maker's mark, stamped 750, size L1/2 / 6, 11.0g. 

VAN CLEEF & ARPELS, A MOTHER OF PEARL PURE ALHAMBRA RING set with a quatrefoil shaped black mother of pearl, signed VCA and numbered, French maker's mark, stamped 750, size L1/2 / 6, 11.0g. 

Estimate £1,500 - £2,500

LOT 91

MAUBOUSSIN, A DIAMOND NADJA RING in 18ct yellow gold, the central section pave set with round brilliant cut diamonds, the tapering band with a polished and satin finish, signed Mauboussin Paris and numbered, French assay marks, stamped 18KTS, size P

MAUBOUSSIN, A DIAMOND NADJA RING in 18ct yellow gold, the central section pave set with round brilliant cut diamonds, the tapering band with a polished and satin finish, signed Mauboussin Paris and numbered, French assay marks, stamped 18KTS, size P

Estimate £2,000 - £3,000

LOT 94

VAN CLEEF & ARPELS, AN ONYX, EMERALD AND DIAMOND SWAN RING, 1970's, in 18ct yellow gold, in crossover design, designed as two swan heads set with fluted onyx, accented by round cut emeralds and round brilliant cut diamonds, inscribed X39 0.82CT, sign

VAN CLEEF & ARPELS, AN ONYX, EMERALD AND DIAMOND SWAN RING, 1970's, in 18ct yellow gold, in crossover design, designed as two swan heads set with fluted onyx, accented by round cut emeralds and round brilliant cut diamonds, inscribed X39 0.82CT, sign

Estimate £8,000 - £12,000

LOT 101

CARTIER, A LAKARDA PANTHERE RING in 18ct white gold, designed as a coiled panther, set with pear cut emerald eyes and an onyx nose, signed Cartier and numbered, French assay marks, maker's mark, size N1/2 / 7, 24.3g. 

CARTIER, A LAKARDA PANTHERE RING in 18ct white gold, designed as a coiled panther, set with pear cut emerald eyes and an onyx nose, signed Cartier and numbered, French assay marks, maker's mark, size N1/2 / 7, 24.3g. 

Estimate £6,000 - £8,000

LOT 105

KUTCHINSKY, A COLOURED DIAMOND DRESS RING comprising two heart motifs pave set with round brilliant cut pink and white diamonds respectively, accented by foliate motifs set with round brilliant cut yellow, pink and white diamonds, the diamonds all to

KUTCHINSKY, A COLOURED DIAMOND DRESS RING comprising two heart motifs pave set with round brilliant cut pink and white diamonds respectively, accented by foliate motifs set with round brilliant cut yellow, pink and white diamonds, the diamonds all to

Estimate £2,500 - £3,500

LOT 107

DE GRISOGONO, A DIAMOND ZIGANA RING in 18ct white gold, in abstract scrolling design, set with round brilliant cut diamonds totalling 2.00 carats, signed de Grisogono and numbered, de Grisogono maker's mark, Italian assay marks, Swiss assay marks, st

DE GRISOGONO, A DIAMOND ZIGANA RING in 18ct white gold, in abstract scrolling design, set with round brilliant cut diamonds totalling 2.00 carats, signed de Grisogono and numbered, de Grisogono maker's mark, Italian assay marks, Swiss assay marks, st

Estimate £4,000 - £6,000

LOT 109

A MODERNIST CITRINE AND DIAMOND BOMBE RING, 1969, in 9ct yellow gold, in abstract design, set with rows of round cut citrines and single cut diamonds, H.B maker's mark, full British hallmarks for London 1969, size M1/2 / 6.5, 12.4g. 

A MODERNIST CITRINE AND DIAMOND BOMBE RING, 1969, in 9ct yellow gold, in abstract design, set with rows of round cut citrines and single cut diamonds, H.B maker's mark, full British hallmarks for London 1969, size M1/2 / 6.5, 12.4g. 

Estimate £300 - £500

LOT 114

AN EMERALD AND DIAMOND THREE STONE RING set with a mixed cut emerald of approximately 1.66 carats, accented on each side by an old cut diamond, the diamonds totalling 0.8-1.0 carat, no assay marks, size Q1/2 / 8.5, 4.3g. 

AN EMERALD AND DIAMOND THREE STONE RING set with a mixed cut emerald of approximately 1.66 carats, accented on each side by an old cut diamond, the diamonds totalling 0.8-1.0 carat, no assay marks, size Q1/2 / 8.5, 4.3g. 

Estimate £3,000 - £5,000

LOT 119

A FINE THREE STONE DIAMOND RING set with three round brilliant cut diamonds of approximately 1.01, 1.20 and 1.04 carats respectively, no assay marks, size M / 6.25, 3.7g. 

A FINE THREE STONE DIAMOND RING set with three round brilliant cut diamonds of approximately 1.01, 1.20 and 1.04 carats respectively, no assay marks, size M / 6.25, 3.7g. 

Estimate £8,000 - £12,000

LOT 124

AN ANTIQUE PERIDOT AND DIAMOND CLUSTER RING in yellow gold and silver, set with an oval cut peridot of approximately 2.92 carats in a cluster of old cut diamonds, the diamonds totalling 2.1-2.4 carats, indistinct British hallmarks, size N1/2 / 7, 7.4

AN ANTIQUE PERIDOT AND DIAMOND CLUSTER RING in yellow gold and silver, set with an oval cut peridot of approximately 2.92 carats in a cluster of old cut diamonds, the diamonds totalling 2.1-2.4 carats, indistinct British hallmarks, size N1/2 / 7, 7.4

Estimate £2,000 - £3,000

LOT 127

CARTIER, A DIAMOND NIGERIA RING in 18ct yellow gold, set all around with rows of round brilliant cut diamonds, the diamonds all totalling 5.0-5.5 carats, French assay marks, signed Cartier and numbered, Cartier size 51, size J1/2 / 5, 9.3g. Accompani

CARTIER, A DIAMOND NIGERIA RING in 18ct yellow gold, set all around with rows of round brilliant cut diamonds, the diamonds all totalling 5.0-5.5 carats, French assay marks, signed Cartier and numbered, Cartier size 51, size J1/2 / 5, 9.3g. Accompani

Estimate £7,000 - £9,000

LOT 132

A NATURAL SALTWATER PEARL RING set with a pearl of 12.0mm x 11.0mm, no assay marks, size M1/2 / 6.5, 4.1g. Accompanied by a gemmological report stating the pearl is of natural saltwater origin with no indication of treatment. 

A NATURAL SALTWATER PEARL RING set with a pearl of 12.0mm x 11.0mm, no assay marks, size M1/2 / 6.5, 4.1g. Accompanied by a gemmological report stating the pearl is of natural saltwater origin with no indication of treatment. 

Estimate £3,000 - £5,000

LOT 135

PIAGET, A DIAMOND POSSESSION SPINNING RING, 1998, the band with an articulated central row of pave set round brilliant cut diamonds, the diamonds totalling 1.3-1.5 carats, signed Piaget and numbered, stamped 750, size N1/2 / 7, 16.0g.

PIAGET, A DIAMOND POSSESSION SPINNING RING, 1998, the band with an articulated central row of pave set round brilliant cut diamonds, the diamonds totalling 1.3-1.5 carats, signed Piaget and numbered, stamped 750, size N1/2 / 7, 16.0g.

Estimate £2,000 - £3,000

LOT 136

AN ANTIQUE DIAMOND HALO RING set with an old European cut diamond of approximately 2.72 carats, within a halo of rose cut diamonds, further rose cut diamonds set to the shoulders, French import marks for 18 carat gold, size L / 5.75, 3.0g. 

AN ANTIQUE DIAMOND HALO RING set with an old European cut diamond of approximately 2.72 carats, within a halo of rose cut diamonds, further rose cut diamonds set to the shoulders, French import marks for 18 carat gold, size L / 5.75, 3.0g. 

Estimate £12,000 - £16,000

LOT 139

AN EXQUISITE COLOMBIAN EMERALD AND DIAMOND RING set with a square step cut emerald of 3.31 carats within a two row border of single cut diamonds, the gallery to the reverse of the head of the ring with fine pierced foliate designs, further diamonds s

AN EXQUISITE COLOMBIAN EMERALD AND DIAMOND RING set with a square step cut emerald of 3.31 carats within a two row border of single cut diamonds, the gallery to the reverse of the head of the ring with fine pierced foliate designs, further diamonds s

Estimate £30,000 - £50,000

LOT 145

AN 11.55 CARAT CEYLON NO HEAT SAPPHIRE AND DIAMOND RING set with a cushion cut sapphire of 11.55 carats in a border of round brilliant cut diamonds, further diamonds set to the shoulders, marked indistinctly, size I1/2 / 4.5, 9.9g. Accompanied by a g

AN 11.55 CARAT CEYLON NO HEAT SAPPHIRE AND DIAMOND RING set with a cushion cut sapphire of 11.55 carats in a border of round brilliant cut diamonds, further diamonds set to the shoulders, marked indistinctly, size I1/2 / 4.5, 9.9g. Accompanied by a g

Estimate £12,000 - £16,000

LOT 149

AN EMERALD AND DIAMOND CLUSTER RING set with an octagonal step cut emerald of approximately 1.61 carats, in a cluster of round brilliant cut diamonds totalling 1.2-1.4 carats, no assay marks, size O1/2 / 7.5, 4.2g. 

AN EMERALD AND DIAMOND CLUSTER RING set with an octagonal step cut emerald of approximately 1.61 carats, in a cluster of round brilliant cut diamonds totalling 1.2-1.4 carats, no assay marks, size O1/2 / 7.5, 4.2g. 

Estimate £3,000 - £5,000

LOT 154

A PINK TOURMALINE AND DIAMOND RING set with a cushion cut pink tourmaline of 10.90 carats between two emerald cut diamonds, the gallery accented by fleur de lis motifs, inscribed T10.90ct, stamped PT950, size N / 6.75, 8.1g.

A PINK TOURMALINE AND DIAMOND RING set with a cushion cut pink tourmaline of 10.90 carats between two emerald cut diamonds, the gallery accented by fleur de lis motifs, inscribed T10.90ct, stamped PT950, size N / 6.75, 8.1g.

Estimate £2,000 - £3,000