topaz
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Japanese calls Ou Gyoku. Topaz is a gem that is rich in color variations like tourmaline and garnet. In Japan, it is named as “yellow jade” and is famous as “yellowish gem”, but there are other topaz such as red, pink, orange, blue and transparent. The hardness that indicates the hardness of a gem … Read More

Tanzanite
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A rare gem that can only be found at the Mererani mine in Tanzania, Africa. With a calm blue glow, it also has pleochroism that changes the appearance depending on the viewing angle and the condition of the light. Japanese calls Kai Ren Seki. > gem stocks タンザナイト 漢字