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Stone | Refractive Index | Specific Gravity | Hardness | Toughness | Enhancements | Enhancement Frequency | Enhancement Stability | Care Tip | Birthstone Month | Anniversary Year |
|---|---|---|---|---|---|---|---|---|---|---|
Blue Zircon | High - 1.925-1.984 (+/- 0.04)
Med - 1.875-1.905 (+/- 0.03) | 3.90-4.73 | 7.5 | Poor to Fair | Heated to change browns to blues | Always | Good | Avoid rough handling and be careful not to clean with steam or ultrasonic | December | 10th |
Anniversary Year(s):
10th
Birthstone Month:
December
Care Tips:
Avoid rough handling and be careful not to clean with steam or ultrasonic
Enhancement Stability:
Always
Enhancement Frequency:
Always
Enhancements:
Heated to change browns to blues
Toughness:
Poor to Fair
Hardness:
7.5
Specific Gravity:
3.90-4.73
High - 1.925-1.984 (+/- 0.04)
Med - 1.875-1.905 (+/- 0.03)
Refractive Index:
Blue Zircon
Birthstone for the Month of:
December
This brilliant blue gemstone has a lovely greenish blue hue that ranges from pastel to vivid and is reminiscent of sparkling lagoon waters. Blue zircon was thought to promote riches, honor and wisdom in the Middle Ages and was quite popular in Victorian jewelry. Today, blue zircon is the traditional birthstone for December. Blue zircons are found in Cambodia, Myanmar and Sri Lanka as well as Brazil and Africa.
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