... quick delivery Product Information Brand NameJijiCommodityArtificial GemstoneManufacturerWuzhou Jiji Jewelry Co. LtdMaterialGlassWhat we supplyCubic zirconia, corundum, spinel, crystal ... reactions with oxygen,then become yellowWuzhou Jiji Jewelry Co., Ltd., located in the World Capital of ... specializing in the production, processing and sales of gemstones. After over ten years of development, we have ...