The gems that Procop and Celestian rounded up include a color-changing teal sapphire recently discovered in Tanzania, a 241-carat piece regarded as one of the most perfect “emerald cut” gems ...

However, note that your sapphire, ruby, emerald, pearls or semiprecious ... quality, size, and cut, it is not hard to sell gemstones for money, either online or in person. Whether your gemstones ...