Lab-Grown Star Ruby Oval Cabochon

This lab-grown star ruby cabochon is made with corundum using the flame fusion method. Each stone has a chemical make-up identical to those found in nature. It performs at the bench just as a natural stone would. The color produced is a deep red that makes a dependable, affordable and popular choice in place of natural ruby gemstones. Use the stone by itself for simple designs, or highlight the saturated color by pairing it with contrasting-color stones for a multicolor look. Ruby is the birthstone for July.

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Gemstone type: Ruby
Stone shape: Oval
Stone size: 7 x 5mm, 8 x 6mm, 10 x 8mm
Stone type: Lab grown
Color: Red
Birthstone: July
Enhancement: Synthetic (SYN)
Mohs hardness: 9
Refractive index: 1.76–1.77
Specific gravity: 3.99–4
Cutting center: China