The Gemological Institute of America (GIA) recently examined a 1.09-carat diamond grown by chemical vapor deposition (CVD) that displayed a blue band. A customer recently submitted the D-color synthetic diamond to the GIA’s laboratory in Mumbai. The coloring was likely…
Christie’s will offer a 6.51-carat diamond ring with a high estimate of $500,000 at its upcoming online jewelry sale. The piece bears a cut-cornered rectangular mixed-cut, fancy-light-purplish-pink, SI2-clarity diamond, surrounded by round pink and white diamonds. It will feature at…
De Beers Group has introduced a new jewelry initiative as well as a branded polished-diamond line aimed at increasing consumer demand for natural diamonds and reinforcing their provenance. The company announced its Ombré Desert Diamonds concept and formally launched the…
Debswana, the 50-50 joint venture between De Beers and the Botswana government, will temporarily halt output at some sites and has reduced its rough guidance for the full year. The move, which is due to persistent weak demand for rough…
A tiara that belonged to Viscountess Nancy Astor more than doubled its top presale price to rake in GBP 889,400 ($1.2 million) at a recent London jewelry sale at Bonhams. The piece, which Lord Astor purchased from Cartier in 1930,…
Gemfields has expanded the offering at its upcoming ruby auction, which includes gems from the new area of its mine as well as a 36-carat stone. Lower iron content lends some of the goods from the new section of the…