Diamond Single-Stone Ring

Lot 650. An Exceptional 8.88 carats, D colour and Internally Flawless clarity Diamond Single-stone Ring, by Cartier. Estimate HK$ 5,380,000 - 6,200,000 (€650,000 - 750,000). Photo: Bonhams. The step-cut diamond, weighing 8.88 carats, to a bifurcated hoop set with brilliant-cut diamonds,remaining diamonds approximately 1.00 carat total, signed Cartier, French assay mark, partial marker's mark, numbered, ring size 7, Cartier case Accompanied by a GIA report stating that the diamond is D colour and... [Lire la suite]

Lot 126. A 3.81 carats fancy intense blue diamond ring. Sold for £2,322,500 (€2,702,938). Photo: Bonhams. LONDON - Bonhams kicks off the fine jewellery autumn season selling Kashmir sapphires, Harry Winston diamonds and signed jewellery for dazzling prices. A rare blue diamond and pair of Kashmir sapphires caught the eye of global buyers at Bonhams Fine Jewellery sale this week (20th September 2016). The star of the sale was a very rare oval-cut blue diamond. Weighing 3.81 carats, the Fancy Intense Blue... [Lire la suite]

Lot 132. A magnificent 15.52 carats step-cut Type IIa diamond single-stone ring, by Harry Winston, circa 1973. Estimate £700,000 - 900,000 (€880,000 - 1.1 million). Photo Bonhams. The step-cut diamond, weighing 15.52 carats, between tapered baguette-cut diamond shoulders, signed Winston, ring size K Accompanied by a report from GIA stating that the diamond is D colour, VVS2 clarity, potential. Report number 2175516935, dated 4 March 2016. Accompanied by an additional letter from GIA stating that the... [Lire la suite]

 A 2.97 carats fancy grayish blue diamond ring, by Andrew Grima, 1971. Estimate £500,000 - 700,000 (€710,000 - 1 million). Photo: Bonhams. LONDON - Leading the sale is a fancy greyish-blue, 2.97cts step-cut diamond ring by the society jeweller to the royals and the stars in the sixties and seventies Andrew Grima estimated at £500,000-700,000. A 2.97 carats fancy grayish blue diamond ring, by Andrew Grima, 1971. Estimate £500,000 - 700,000 (€710,000 - 1 million). Photo:... [Lire la suite]

A Belle Époque diamond single-stone ring, circa 1910. Estimate £30,000 - 50,000 '€41,000 - 68,000).  Photo: Bonhams. The old hexagonal-cut diamond, weighing 8.18 carats, within a delicatedly pierced platinum mount millegrain-set with old brilliant and single-cut diamonds, the reeded hoop with further engraved decoration, ring size M½, cased Note: This unusual hexagonally-cut diamond is a variety of the 'stellar brilliant-cut', which can be traced back to the early 17th century. This particular diamond is... [Lire la suite]

A 10.39 carats diamond single-stone ring. Estimate £70,000 - 90,000 (€96,000 - 120,000). Photo: Bonhams. The brilliant-cut diamond, weighing 10.39 carats, within an eight-claw setting, ring size J½ Accompanied by a report from GIA stating that the diamond is K colour, VS2 clarity. Report number 6173078165, dated 17 March 2015. BONHAM'S. FINE JEWELLERY, 22 Apr 2015 14:00 BST -LONDON, NEW BOND STREET

A 9.15 carats diamond single-stone ring. Estimate £150,000 - 200,000 (€210,000 - 270,000). Photo: Bonhams. The brilliant-cut diamond, weighing 9.15 carats  Accompanied by a report from GIA stating that the diamond is H colour, VS1 clarity. Report number 5171085392, dated 20 March 2015 BONHAM'S. FINE JEWELLERY, 22 Apr 2015 14:00 BST -LONDON, NEW BOND STREET

A 9.05 carats diamond single-stone ring, by Harry Winston. Estimate £250,000 - 350,000 (€340,000 - 480,000). Photo: Bonhams. The pear-shaped diamond, weighing 9.05 carats, within a five-claw setting between tapered baguette-cut diamond shoulders, maker's mark for Jacques Timey, ring size J (sizing band), Harry Winston pouch Accompanied by a report from GIA stating that the diamond is D colour, VS1 clarity. Report number 5171045782, dated 2 March 2015. BONHAM'S. FINE JEWELLERY, 22 Apr 2015 14:00 BST... [Lire la suite]

An exceptional diamond single-stone ring. Photo Bonhams. The brilliant-cut diamond, weighing 7.33 carats, within a six-claw setting, ring size 6. Estimate HK$ 7 million - 9 million (€650,000 - 840,000) Accompanied by a GIA report stating that the diamond is D colour and Internally Flawless, with Excellent Cut, Polish and Symmetry. Report number 1122925607, dated 11 January 2011. Bonhams. FINE JEWELLERY & JADEITE. Hong Kong, Admiralty, 21 May 2014 - www.bonhams.com

A diamond single-stone ring. Photo Bonhams. The marquise-cut diamond, weighing 4.27 carats, between tapered baguette-cut diamond shoulders, ring size L. Estimate £60,000 - 80,000 (€73,000 - 97,000)ccompanied by a report from AnchorCert stating that the diamond weighing 4.27 carats is E colour, Internally Flawless, Type IIa. Report number 20014488, dated 31 January 2014.Bonhams. FINE JEWELLERY. London, New Bond Street, 30 Apr 2014 -www.bonhams.com