Two Kashmir sapphire lots, Lot 1752 and Lot 1938, that appeared at Sotheby's Hong Kong Magnificent Jewels & Jadeite Sale on October 7, 2014 appear...

At least four Animal and Plant Motif Jewelry Lots appeared at Christie's London, South Kensington, Jewels At South Kensington Sale, held on April 7, 2...

Two Burmese Blue Sapphire lots appeared at Christie's Jewels : The Hong Kong Sale held on May 26, 2009. These lots are Lot 1653 and Lot 1703. Lot 165...

The images of 49.47-carat, cut-cornered rectangular step-cut Ceylon blue sapphire and the 9.18-carat modified pear-shaped Ceylon blue sapphire uploade...

Thanks Lareef for your detailed and in-depth analysis of whole stone prices and price-per-carat values of Kashmir sapphires that appeared at various p...

Thanks Mike for your update. Image of Lot 1560 was of special interest. This is the first time I am seeing an image of a heat treated blue sapphire. T...

Three other Kashmir sapphire lots - Lot 81, Lot 250 and Lot 332 - appeared at Sotheby's Geneva Magnificent Jewels Sale held on November 13, 2013. Lot...

The 15.35-carat, cushion modified brilliant-cut alexandrite, that appeared at the Government Auction Assets sale held online on April 29, 2012 and hig...

Even though the image uploaded by Mikegem is described as a pink star sapphire, the image appears to have a violet or purple hue, which are also secon...

The pink sapphires/pink rubies incorporated in the Cartier Jewel uploaded by shah, are indeed the rare and beautiful stones, prized equally with the r...

An awesome gemstone from "Serendib" - "the Land of Rubies" - as ancient Arabs referred to Ceylon/Sri Lanka in ancient times !!!

A casual examination of the PPC values given by Yousuf indicates that the size of the blue sapphires might be related to the large disparity in ppc va...

Another Kashmir blue sapphire, not so significant in terms of its size but with all the exceptional qualities of Kashmir sapphires such as its lovely ...

Thanks for taking all the trouble in giving us an almost total and exhaustive reply on white/colorless diamonds of Golconda origin. The images you pos...

Among the famous diamonds in the world, what white/colorless diamonds have a Golconda provenance?