Blue Zircon Round Faceted Gemstones, AA Grade

This AA-grade round faceted zircon features an attractive shade of light blue and would be an excellent choice for pendants, necklaces and earrings. Use the gemstone by itself for simple designs, or highlight the subtle color by pairing it with contrasting-color gemstones in more complex pieces. Blue zircon is one of the birthstones for December. Zircon is a hard, naturally occurring gem mineral. Faceted zircon has a brilliance that rivals a diamond, making it an economical alternative. Most natural zircons are brownish orange; heat enhancement results in yellow, gray, green, red, blue or colorless gemstones. In the Middle Ages it was believed to protect against evil spirits, improve sleep and cultivate honor, wisdom and wealth. 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: Zircon
Stone shape: Round
Stone size: 5mm, 4mm, 3mm, 3.5mm
Stone type: Natural
Color: Blue
Birthstone: December
Enhancement: Heat-treated (H)
Grade: AA
Mohs hardness: 7.5
Clarity: Eye-clean
Refractive index: 1.93–1.98
Specific gravity: 3.9–4.73
Brand: AGTA
Cutting center: India