Magic Blue Quartz 12mm Trillion Concave Cuts

Magic Blue Quartz 12mm Trillion Concave Cuts
Please note these are deeper cut with thicker cut girdles.
Moh’s Scale Hardness: 7
Specific Gravity: 2.65
Refractive Index: 1.54-1.55
Treatment: Permanent Coating
Care: Avoid Ultrasonic Cleaners, and excessive wear/polishing on stone