Synthetic Emerald Classification
Common Name
Synthetic Emerald
Variety
Synthetic Emerald
Colors
light to very dark green to strongly bluish green, slightly yellowish green
Key Separations
Refractive index, birefringence, optic character distinguished beryl from other materials, but magnification is essential for separating synthetic beryl from natural material.
Comments
Russian product: RI 1.572 to 1.578 and 1.579 to 1.584, birefringence 0.006 to 0.007, SG 2.63 to 2.73Chinese product: RI 1.570 to 1.572 and 1.576 to 1.578, birefringence 0.006, SG 2.67 to 2.71Biron product RI 1.569 to 1.573(+/-0.001) some 1.570 to 1.578, birefringence 0.004 to 0.008, SG 2.68 to 2.71. Misnomer: cultured emerald