Let me give you an example: 近年では, the prices of gems of the same quality, regardless of coral, ジェイド, ダイヤモンド, ancient jade, エメラルド, red sapphire, alexandrite, 等, have been rising. さらに, with the depletion of mining sources, the rise in gem prices is still obvious. Buying gems can basically add value, しかし、 […]
