45 Carat yellow diamond could fetch $3.5m

A 45.07 carat fancy vivid yellow diamond is forecast to sell for $2.8m to $3.5m at Phillips New York on Wednesday (12 June).

It leads the New York Jewels Auction, featuring colored diamonds and gemstones, period jewelry, and signed jewels by Cartier, Bulgari, and Van Cleef & Arpels.

The square emerald-cut VS1-clarity stone has classic step-cut faceting, considered an unusual choice to best show off the color and draw out the illusion of greater saturation.

The Fancy Color Research Foundation (FCRF) gives the diamond a total visual score of 11 out of 12, based on inner grade (3), color dispersion (4) and undertone (4), noting that despite its depth percentage, excellent polish and symmetry grades, its visual presence translates to “a diamond appearing smaller in carat weight”.

The diamond will realize $77,657 per carat if it hits its high estimate. In March a 15.51-carat VS2 fancy vivid yellow diamond sold for $1.14m – $73,253 per carat – at Phillips Hong Kong Jewels Auction, beating its low estimate.

Source: IDEX

Christie’s Holds 2 Sales Despite Cyberattack

Geneva Christie’s went ahead with two of its Geneva auctions, one for jewelry and one for watches, despite the fact that its website has been down since late last week following a cyberattack.

“The Yellow Rose” diamond, pictured above, was the top lot in its “Magnificent Jewels” sale in Geneva.

The 202 ct. Yellow Rose diamond sold for $6.7 million at Christie’s Magnificent Jewels sale in Geneva on Wednesday.

On Tuesday, a smaller but historically significant yellow diamond the 101.29 ct. fancy vivid Allnatt was pulled from Sotheby’s Magnificent Jewels auction at the last minute, despite carrying a $6.1 million to $7 million estimate.

101-ct Allnatt Yellow Diamond Could Fetch $7.2m

The 101.29-carat Allnatt diamond, described as one of the world’s most significant fancy vivid yellow stones, is to be auctioned at Sotheby’s Geneva, with an estimate of $6.2m to $7.2m.

The Type 1a gem, from South Africa, was named after the British racehorse owner and art collector Major Alfred Ernest Allnatt, who bought in in the 1950s. He had it mounted in a brooch by Cartier.

The Allnatt forms the heart of a flowerhead composed of openwork, brilliant-cut diamond-set petals enhanced with baguette diamonds.

It was last offered at auction in Geneva in May 1996 – as the ‘Property of a Lady’ – and sold for just over $3m. At the time it weighed 102.07 carats and was graded fancy intense yellow by the GIA.

It was subsequently repolished to its current 101.29 carats, which bought the color up to fancy vivid yellow.

The Allnatt diamond leads the Magnificent Jewels and Noble Jewels sale on May 14.

Source: IDEX

133 Carat Yellow Diamond Fetches $5.5 Million At Sotheby’s Auction

A 133.03 carat Fancy Vivid Yellow diamond achieved a sale price of more than $5.5 million, becoming the largest fancy vivid yellow diamond to sell at auction.

This was the top lot at Sotheby’s December 5 Magnificent Jewels auction in New York. The unmounted cushion modified brilliant-cut gem with VS2 clarity surpassed its high estimate of $5 million.

The diamond was purchased by Diacore, a diamond manufacturer best known for crafting rare, exceptional diamonds and high-end jewelry.

The company also has a joint partnership with Sotheby’s called “Sotheby’s Diamonds,” in which they manufacture and market diamonds specifically for private sale at Sotheby’s locations in London, New York and Hong Kong.

Source: Forbes