Lab-Grown Ruby Marquise Faceted Gemstone

This lab-grown ruby is made with corundum using the flame fusion method. Each gemstone has a chemical make-up identical to those found in nature. It performs at the bench just as a natural gemstone would. The color produced is a deep red that makes a dependable, affordable and popular choice in place of natural ruby gemstones. Ruby is the birthstone for July. Also called a "navette" cut, the marquise cut features pointed ends and an elongated shape. Its faceting is a variation of the brilliant cut, designed to maximize the play of light within the gemstone.

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Gemstone type: Ruby
Stone shape: Marquise
Stone size: 12 x 6mm, 5 x 2.5mm
Stone type: Lab grown
Color: Red
Birthstone: July
Enhancement: Synthetic (SYN)
Mohs hardness: 9
Clarity: Eye-clean
Refractive index: 1.762–1.77
Specific gravity: 3.95–4.1
Brand: AGTA
Cutting center: Thailand