Very rare 22ct solitaire to come onto the market in December.
Bonhams will offer up a rare 22.87ct Golconda diamond solitaire ring at its fine jewellery sale in New York on December 13.
The Golconda diamond in the ring is an emerald-cut D-colour flawless type IIa, and is part of a sale of a private jewellery collector from California.
Bonhams US jewellery director Susan Abeles said: “The jewellery department at Bonhams is honoured to offer this exceptional collection of jewellery. The rare diamond belongs to an exclusive category of diamonds because of its colour, clarity and classification. Rarely does one find these superior qualities, which have long been associated with the historic Golconda diamonds.”
Golconda diamonds possess the purity and transparency of water and are graded with a IIa classification. This classification is only found in 2% of the world’s diamonds.
It is very rare for Golconda diamonds to come up for auction and this particular ring has been given a pre-sale estimate of US$3 million to US$3.5 million (£1.9m to £2.2m).
Also included in the collection is necklace set with 82.26ct of fancy yellow and 27.1ct of nearly colourless diamonds that has a pre-sale estimate of US$500,000 to US$750,000 (£321,000 to £482,000). There is also a similar bracelet and a set of pendant earrings in the sale with pre-sale estimates of US$400,000 to US$500,000 and US$50,000 to US$70,000 respectively (£257,000 to £321,000; £32,000 to £45,000).