set yourself apart with colour
SJ Gems declare any enhancements to the best of their ability. Authenticity is guaranteed by full refund.
All deliveries are fully insured. Convenient and secure online payment through 100% secure checkout
Easily exchange or return items. Return any purchase in its original condition. No questions asked.
Hardness – 7 on Mohs scale
Toughness – Fair to good; heat-treated stones can be brittle and might be easily abraded
Heat – Can alter colour
Light – Generally stable
Chemicals – None
Steam – Risky
Ultrasonic – Risky
Warm, soapy water – Safe
Heating – Produces colour from brown material → good → assumed