Lot 618. An Important 8.83 carats Emerald and Diamond Ring. Estimate HK$ 2,800,000 - 3,500,000 (€ 320,000 - 400,000). © Bonhams 2001-2020
Hong Kong - An elegant group of emerald jewellery will lead Bonhams' Hong Kong Jewels and Jadeite sale on 6 July, alongside a series of other coloured gemstones, jadeite, white and coloured diamonds. Two stand-out lots include a top quality 'no-oil' emerald ring, weighing 8.83 carats (estimate: HK$2,800,000–3,500,000), and an exquisite Emerald and Diamond 'Cluster' Necklace by Graff, boasting a total of 46 carats of emerald and nearly 67 carats of white diamonds (estimate: HK$1,100,000–1,800,000).
Lauded as the world's most desirable green gemstone, emeralds have a history dating back to ancient civilisations in Asia, Africa and South America, with the first known emerald mines discovered from as early as 3,500BC in Egypt. From these ancient mines in Egypt through to the discovery of deposits in Colombian in the mid-16th century, emeralds have long been prized and used as symbols of wealth and status.
Colombian emeralds, with their characteristic bluish green colour, are deemed the purest in the world, and those examples which are free from any form of treatment or enhancement (otherwise known in the trade as 'no oil') are exceptionally rare.
Lot 618. An Important 8.83 carats Colombian Emerald and Diamond Ring. Estimate HK$ 2,800,000 - 3,500,000 (€ 320,000 - 400,000). Sold for HK$ 2,325,625 (€ 265,882). © Bonhams 2001-2020
The cushion-shaped emerald, weighing 8.83 carats, between shield-shaped diamonds, diamonds approximately 1.70 carats total, ring size 6¾.
Accompanied by a report from SSEF stating that the natural emerald has no indications of clarity modification in fissures at the time of testing, and originates from Colombia. Report number 112759, dated 25 February 2020.
Lot 613. An Exquisite Emerald and Diamond 'Cluster' Necklace, by Graff. Estimate HK$ 1,100,000 - 1,800,000 (€ 130,000 - 210,000). Sold for HK$ 2,188,125 (€ 250,162). © Bonhams 2001-2020
The cascading necklace set with fifteen pear-shaped emeralds, graduating in size towards the front, accented by circular-cut emerald florets, completed by brilliant-cut diamonds, diamonds approximately 66.90 carats total, emeralds approximately 46.10 carats total, signed, numbered, inner circumference 40.5cm, original case.
Accompanied by an original quality certificate from Graff.
British jeweller Laurence Graff established his eponymous company Graff Diamonds in 1960 in London's Hatton Garden. Today, the company is one of the world's foremost jewellery firms with over 50 international stores. Over the course of his impressive 60 year career, Graff has acquired and sold some of the world's rarest and most exceptional gems and has been dubbed 'King of Diamonds'. The jewels produced by Graff are renowned for their superior quality and exquisite craftsmanship and are made by 70 jewellers in the workrooms below Graff's London office on Albermarle Street in Mayfair. In 2013 Laurence Graff was appointed an Officer of the Order of the British Empire by Her Majesty Queen Elizabeth II. Lots 536, 537, 558, 559, 560, 608, 609, 610, 612 and 613, are very fine examples of Graff's superb quality, craftsmanship, and timeless design.
In the July sale in Hong Kong, Bonhams is pleased to offer some top quality 'no oil' Colombian emeralds, including: a 6.69 Carat Emerald and Diamond Ring (estimate: HK$1,350,000–2,500,000), and a Pair of 6.06 Carat Emerald and Diamond Pendent Earrings (estimate: HK$550,000–700,000).
Lot 591. A Fine 6.69 carats Colombian Emerald and Diamond Ring. Estimate HK$ 1,350,000 - 2,500,000 (€ 160,000 - 290,000). Unsold. © Bonhams 2001-2020.
The step-cut emerald, weighing 6.69 carats, between baguette-cut diamond shoulders, ring size 6½
Accompanied by a report from SSEF stating that the natural emerald has no indications of clarity enhancement and originates from Colombia.
Accompanied by a Gübelin report stating that the natural emerald has no indications of clarity enhancement and originates from Colombia. Also, with an extra information sheet.
Lot 617. A Pair of 6.06 Carat Colombian Emerald and Diamond Pendent Earrings. Estimate HK$ 550,000 - 700,000 (€ 63,000 - 80,000). Sold for HK$ 688,125 (€ 78,671). © Bonhams 2001-2020.
The pear-shaped emerald surmounts, suspending similarly cut emerald drops, each within a marquise-cut diamond surround, between similarly cut diamond spacers, diamonds approximately 3.35 carats total, emeralds 6.06 carats total, length 4.0cm
Accompanied by four Gübelin reports stating that the 1.98, 1.84, 1.26 and 0.98 carat natural emeralds have no indications of clarity enhancement and originate from Colombia.
Jean Ghika, Bonhams Global Head of Jewellery, commented: "Over the past five years, the increasingly strong prices achieved for emeralds at auction suggest that buyers are actively seeking out the very best examples. The most highly prized, those of Colombian origin with no evidence of oil enhancement, are extremely rare –both naturally and in the market. Given the shortage of supply and rarity of the best examples, we anticipate that this is a trend that will continue."
Other star lots from the 6th July sale include a group of impressive jewels from the Zurich-based jeweller, La Serlas. These hail from a European Collection and include:
Lot 621. A Fine Diamond and Coloured Diamond Rivière Necklace, by La Serlas. Estimate: HK$780,000–1,500,000 (€ 90,000 - 170,000). Unsold. © Bonhams 2001-2020.
The twenty-seven cushion and old brilliant-cut diamonds, graduating in size towards the front, between spacers set with brilliant-cut diamonds of pink tint, within brilliant-cut diamond frames, certified diamonds 23.13 carats total, coloured diamonds approximately 3.00 carats total, remaining diamonds approximately 4.00 carats total, maker's mark, coloured diamonds untested for natural colour, length 40.8cm.
Property of a European collection.
Accompanied by twenty-seven GIA reports stating that the 2.06 to 0.60 carat diamonds are D-F colours and VVS1-VS2 clarity.
Accompanied by La Serlas original invoice.
Lot 620. An Impressive 20.05 Carat Ceylon Sapphire and Diamond Dress Ring, by La Serlas. Estimate: HK$630,000 - 950,000 (72,000 - 110,000). Sold for HK$ 688,125 (€ 78,671). © Bonhams 2001-2020.
The step-cut sapphire, weighing 20.05 carats, between triangular-cut diamond shoulders, the mount accented by brilliant-cut diamonds, extended to the half hoop, diamonds approximately 4.00 carats total, signed, numbered, maker's mark, ring size 7½, original case.
Property of a European collection.
Accompanied by a report from SSEF stating that the natural sapphire has no indications of heat treatment and originates from Ceylon (Sri Lanka).
Accompanied by a copy of GRS report stating that the natural sapphire is (GRS type 'cornflower') blue colour, has no indications of thermal treatment and originates from Burma (Myanmar).
Other highlights of the sale include:
Lot 619. An Important 28.44 Carat Burmese Unheated 'Pigeon's Blood' Ruby and 19.50 Carat Diamond Necklace. Estimate: HK$2,600,000–3,600,000 (€ 300,000 - 410,000 ). Unsold. © Bonhams 2001-2020.
Set with seven cushion and oval-cut rubies, weighing 17.69 carats total, graduating in size towards the front, between smaller oval-cut ruby spacers, completed by circular-cut rubies, accented by brilliant and marquise-cut diamonds, diamonds approximately 19.50 carats total, remaining rubies approximately 10.75 carats total, length 40.80cm.
Accompanied by seven GRS reports stating that the 2.81, 2.80, 2.58, 2.45, 2.43, 2.35 and 2.27 carat natural rubies are (GRS type "Pigeon's Blood") red to vivid red colour, have no indications of thermal treatment and originates from Burma (Mogok, Myanmar).
Lot 589. An Exceptional Strand of Lavender Jadeite Bead, Ruby and Diamond Necklace. Estimate: HK$ 2,500,000–3,500,000 (€ 290,000 - 400,000). Sold for HK$ 3,125,625 (€ 357,344). © Bonhams 2001-2020.
Comprising sixty-eight translucent jadeite beads of lavender colour, between ruby rondelle spacers, completed by two clasps set with cabochon rubies, pear-shaped pink sapphires, circular cultured pearls, accented by brilliant-cut diamonds, jadeite beads 14.8-14.1mm, rubies approximately 4.00 carat total, pink sapphires approximately 14.70 total, necklace convertible to become two strands, length 117.0cm or 62.5cm and 54.5cm
Accompanied by two Hong Kong Jade & Stone Laboratory reports stating that the selected natural fei cui (jadeite jade) have no resin detected.
Lot 614. An Important 6.65 carats unheated Kashmir Sapphire and Diamond Ring. Estimate HK$ 2,860,000 - 3,200,000 (€ 330,000 - 370,000). Sold for HK$ 3,750,625 (€ 428,799). © Bonhams 2001-2020
The oval-cut sapphire, weighing 6.65 carats, between triangular-cut diamond shoulders, diamonds approximately 1.20 carats total, ring size 5½
Accompanied by a report from SSEF stating that the natural sapphire has no indications of heat treatment and originates from Kashmir.
Accompanied by an AGL report copy stating that the natural sapphire originates from Kashmir.
Accompanied by a Gübelin report stating that the natural sapphire has no indications of heat treatment and originates from Kashmir.
Accompanied by a GIA report stating that the natural sapphire has no indications of heat treatment.
Unheated Kashmir Sapphires
Sapphires hailing from Kashmir display a vivid velvety blue hue that is unique to the region. They are among the most highly-prized gems due to their rarity and their scarcity; while there are still superfine sapphires to be found in Burma and Ceylon, no mining activity has taken place in Kashmir for many decades and the mine that yielded the finest specimens was largely exhausted by 1887, after only six years of production. Lot 614, a 6.65 carat unheated Kashmir sapphire is a superlative example from this legendary period of production.
Lot 612. A Pair of 14.65 Carat Emerald and 8.05 Carat Diamond 'Cluster' Pendent Earrings, by Graff. Estimate: HK$160,000–300,000 (€ 18,000 - 34,000). Sold for HK$ 288,125 (€ 32,940). © Bonhams 2001-2020.
Of chandelier design, each earring set with three pear-shaped emeralds, suspended from circular-cut emerald florets, between brilliant-cut diamonds, diamonds approximately 8.05 carats total, emeralds approximately 14.65 carats total, signed, numbered, length 5.9cm, original case.
Accompanied by an original quality certificate from Graff.
Preview and bidding will be done in accordance with the latest government guidelines. This includes the option of an appointment-only preview and a 'behind-closed-doors' auction, where an auctioneer will be present on the rostrum, and bids will be accepted in the following formats: online, on the phone, or by leaving an absentee bid.