Although all gem garnets share the same crystal structure, gemologists divide them according to their chemistry – those that contain aluminum, as part of their basic chemistry, and those that contain calcium.

The top triangle represents the aluminum garnets – pyrope, almandite, and spessartite – and the lower calcium garnets – uvarovite, andradite, and grossularite. At each point of each triangle, there’s one garnet species that represents chemical purity. For example, in the top triangle, almandite is a theoretically pure iron-aluminum garnet, and pyrope is a pure magnesium-aluminum garnet. In nature, no garnet is ever pure, and garnet species mix to produce a range of gems with different colours and physical properties.

Photo: Johnston/GIA. Courtesy: GIA. Resource: Amanda. #eClarity

“Dear Amanda, thank you & your team for all the kind assistance rendered! From the proposal rings to our wedding rings. 很细心!😊 All the best!” – Desmond & Caroline

Thank you Desmond & Caroline for celebrating love with eClarity! Your greatest adventure has begun, and we wish both of you a future, full of the best that life has to offer. Congratulations!

Zircon, peridot and tourmaline are 3 gems that offer magnificent greens, rich reds, and brilliant electric blues.

Photo: John Parrish, Rio Grande & Tino Hammid. Courtesy: GIA. Resource: Amanda. #eClarity