Experts say that this previously overlooked gemstone is rocketing in desirability and value, as collectors look beyond the so-called “Big Four’” (diamonds, emeralds, rubies and sapphires ...

The auction on Thursday totaled $30 million, with strong demand for colored gemstones, white and colored diamonds and jewels ...

There are a number of semiprecious gems, many quite beautiful, but diamonds, rubies, sapphires ... reducing its value.) Precious gems are formed in different ways and composed of different ...

Jewelry auctions are in full swing for the holiday, and, in the spirit of the season, red-toned stones topped the lots for ...