Round Concave Cut Stone

134 round concave cut stone products are offered for sale by suppliers on Alibaba.com, of which loose gemstones accounts for 74%. A wide variety of round concave cut stone options are available to you, such as brilliant cut, round brilliant cut and round cut.You can also choose from synthetic opal, rainbow moonstone and blue topaz round concave cut stone,as well as from round brilliant cut, emerald cut, and radiant cut round concave cut stone,And whether round concave cut stone is lab grown diamond, {2}, or {3}.