Diamond rings have long been symbols of wealth ... The Pink Promise Ring features a 14.93-carat fancy vivid pink diamond, known as the Pink Promise; in 2017, it was auctioned for USD 32 million at a ...

Christie’s is getting ready to present The Golconda Blue, the largest Fancy Vivid Blue Diamond ever to be offered at auction.

clear gems set in engagement rings, colorful diamonds — one of nature’s rarest and most captivating phenomena — dazzle with hues that rival the rainbow. The Winston Fancy Color Diamond ...