C&S-Emerald Chatham Created

Birthstone Information/Anniversary Stones/Gemstone Care/AGTA Codes

Quality Information & Color Information

Quality	Description	Variations
Gem	Medium to dark green; eye clean; good cut; good polish	17-5-6

Care

Emerald is rated “fair to good” for everyday wear with care. Avoid exposure to heat, contact with chemicals, and protect from scratches and harsh blows. To clean, gently scrub with a soft toothbrush and a solution of mild dish soap and warm water.

Properties & Reactions

Enhancement Code: SYN

Hardness: 7.5-8

Color: Green

Species: Synthetic Beryl

RI: 1.577-1.583

Specific Gravity: 2.72

Optic Character: DR

Phenomena: Chatoyancy, Asterism (rare)

Ultrasonic: Risky

Steamer: Never use

Heat: Very Poor - should never be heated

Chemicals: Hydrofluoric acid