About JINGANGZUOWuzhou Zhubajie Gems Co., Ltd is manufacturer of synthetic gems in Wuzhou, GuangXi, China. We produce cubic zirconia, moissanite, synthetic spinel, synthetic corundum and glass gemstonesTemperature resistanceWhite cubic zirconia temperature resistance 1200 to 1500 degrees centigradeColor cubic zirconia temperature resistance 600 to 700 degrees centigradeNano gemstone, synthetic spinel and synthetic corundum temperature resistance 1800 degrees centigradeRound cubic zirconia packing detail3.25 mm to 20 mm these came wrapped up in a long wrapping paper, So just be careful when opening 0.7 mm to 3.0 mm with vacum bag packingPerfect After-Sales ServiceSome unexpected issues might happen during delivery with many turns and stops, Just contact us and we will assist you in finding a solution promptlyIf you need other shapes, color and size of cubic zirconia,please search for JINGANGZUO on amazon size provide: 0.7 mm to 20 mmShapes Provide:Round, Princess, Pear, Oval, Heart, Rectangle, Octangle, Marquise, Cushion and TriangleColor Provide:White, Green, Sea blue, Black, Lavender, Violet, Gold Yellow, Olive Yellow, Olive Green, Garnet Color, Orange, Amethyst Color, Champagne, Pink, Coffee, blue, Rhodolite Color and Tanzanite ColorPlease Note:1.The color may be slightly different from the picture because of different display device 2.Due to different sizes, the color may be slightly different, The larger the size, the darker the color