Leibish & Co., unveiled its World of Colors guide for identifying fancy colored diamonds in New York Thursday (January 19). A day earlier, I spoke privately with Leibish Polnauer, the president and ...

While some diamonds whisper elegance, fancy color diamonds shout it—and their growing market value reflects that. Prices for fancy color diamonds have surged 205 percent over the past two decades, ...

If variety is indeed the spice of life as some say, the upcoming Bonhams New York Fine Jewelry sale looks very hot. The April 24 auction includes fancy colored diamonds; signed pieces from Cartier, ...

Through the years, the wedding industry might be doing its very best to convince us that we need a diamond engagement ring, but there's been a serious uptick in colored engagement rings with unique, ...

Christie’s is proving that good things most definitely come in threes. The auction house has chosen an eye-popping trio of colored diamonds to lead its latest sales event. The Magnificent Jewels sale, ...

White diamonds are still the stones of choice for engagement rings. But colored diamonds are catching up. Last month the Gemological Institute of America, one of the largest independent ...

(From left) 4-carat yellow diamond ring (set in platinum and 18-k yellow gold), price upon request; 8.28-carat fancy-intense blue diamond ring (set in platinum), $12.5 million; 1.04-carat pink diamond ...

A clear, sparkling diamond is engrained in the minds of many women around the world as being the symbol of everlasting love, while for some men it is the requisite token bought to signify a proposal ...

It is unusual to find an important gemstone that stands apart for both its quality and its rarity. This season, It is unusual to find an important gemstone that stands apart for both its quality and ...

Laser Raman microspectroscopy is a standard analytical method in many gemmological laboratories. This technique is also useful in analyzing luminescence emissions. The set of diamonds analyzed ...