The 'Winston Legacy' is the largest white diamond ever to come to auction. The Type IIa, pear-shaped, D colour, flawless diamond was sold to Harry Winston at Christie's auction of jewels in Geneva on 15 May
A stunning Rainbow Calcite featured in The Handbook of Gemmology. Another magical moment from Mother Earth brought to you through the photography of Tino Hammid. Faceted by Art Grant. Courtesy of the Smithsonian.
I love this gorgeous gem not familiar to most people. The trade name is "Titanite". Sphene has the second highest dispersion 'fire' of any stone, the highest being demantoid garnet. The third highest is diamond.
Largest Faceted Gemstones in the World Are Members of the Topaz Family
The El-Dorado Topaz, which weighs a whopping carats lbs.) currently holds the crown as the largest faceted gemstone in the world. Originally discovered in 1984 in mineral-rich Minas Gerais, Brazil, the pre-cut El-Dorado crystal tipped the sc
The beautiful common gemstone belongs to the beryl family and gets its green coloring from traces of chromium and vanadium. Many are treated with oils to enhance their color. It is a fairly hard stone.