Lab-Grown Ruby 4mm 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.

• Gemstone Type: Ruby
• Stone Shape: Round
• Stone Size: 4mm
• 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
• Weight: 0.000 kg