Lab-Grown Ruby Round Faceted Gemstone

Made from lab-grown corundum, this round gemstone displays a deep red color and is an economical alternative to natural ruby, the birthstone for July. Each gemstone has a chemical make-up identical to those found in nature. It performs at the bench just as a natural gemstone would. Round-cut gemstones are highly popular and the most commonly available. Rio round gemstones are calibrated for size and hand inspected to ensure maximum attractiveness.

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Gemstone type: Ruby
Stone shape: Round
Stone size: 2.5mm, 3mm, 3.5mm, 4mm, 5mm, 6mm, 8mm, 10mm, 2mm
Stone type: Lab grown
Color: Red
Birthstone: July
Enhancement: Synthetic (SYN)
Mohs hardness: 9
Refractive index: 1.762–1.77
Specific gravity: 3.95–4.1
Brand: AGTA
Cutting center: Thailand