Concave Cut Ruby Blue Spinel Synthetic Gems China SupplierConcave cut is one of fancy cuts for synthetic gems, it's very brilliant and shine. Make those concave lab ruby and blue spinel for necklaces, earrings, pendants or any jewelry project. We can cut many sizes for concave shape gemstones with other synthetic gems include cubic zirconia, crystal and glass. We carry a variety of colors like white, pink, purple, olive, blue, aquamarine, black, garnet red, orange, champagne and more. If you want to buy high quality concave cut synthetic gems at factory wholesale price, please contact us to get free quotation today. ![]() ![]() Size(mm): 5x7 6x8 7x9 8x10 MOQ: 200pcs Contact us to get free quote of concave cut lab created ruby & blue spinel today. |