The gemstone is 28.6 millimetres high and weighs 139.43 carats.

这颗宝石高28.6毫米，重达139.43克拉。

There are five options for the gemstone: blue topaz, opalite, onyx, sapphire and ruby.

有五种宝石供选择，分别是蓝色托帕石、不纯蛋白石、缟玛瑙、蓝宝石和红宝石。

There is a huge range of gemstone quality.

有一个珠宝玉石质量巨大的范围。

Yes. It's a very precious gemstone in China.

是的。在中国，玉是非常宝贵的。

Blue opal from Peru is a new variety of gemstone.

秘鲁蓝欧泊是近年来新出现的宝石品种。