There are many gemstones that can produce starlight effect in nature. 現在のところ, there are 10 kinds of gems known as: サファイア, ルビー, almandine, beryl, アクアマリン, spinel, diopside, cordierite, columnar and enstatite pyroxene. その中で, the starlight effect of sapphire is the most common and the particles are large and eye-catching. Take sapphire, which has […]