A fine platinum, fancy grayish blue diamond and diamond ring, circa 1930.  A magnificent and very rare fancy vivid blue diamond and fa...

A Belle Epoque style natural pearl and diamond pendant necklace. A diamond tassel necklace by Bulgari. A diamond necklace by Ch...

Aquamarine and diamond brooch, circa 1935. Diamond and sapphire brooch from the 1920's. Diamond and enamel "starry nigh...