Heart Cut Lab Created Ruby #5 Gemstones Wholesale ManufacturerLab-created rubies are beautiful gems and its substitute to natural ruby stones, lab ruby is durable on 9.25 Moh's scale and the second hardest gemstone after diamond(10 Moh's hardness). We stock a wide range of ruby stones including round lab ruby, marquise lab ruby, pear lab ruby, oval lab ruby, octagon lab ruby, square lab ruby, trillion lab ruby, emerald cut lab ruby. Today let us show you a heart cut lab created rubies as below: Size(mm): 3x3 4x4 5x5 6x6 7x7 8x8 9x9 10x10 Color: Red Minimum Qty: 100pcs Quality: AAA |