Jewelers frequently need gemstones to create the pieces their customers request. As an investor in gemstones, you may be able to sell your gems at a profit to jewelers, but there's much to learn about the gem trade first. Trillion-shaped emerald, 6.97 cts, Colombia. Photo courtesy of liveauctioneers.com and Royal Treasures Warehouse LLC.
Credit: Royal Treasures Warehouse LLC
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