1.
The study of gems.
宝石学对宝石的研究
2.
With diamond, ruby or sapphire?
是要钻石的、红宝石的还是蓝宝石的？
3.
adorn with ruby red color.
装饰用红宝石的颜色。
4.
All authorities on gems agree that the diamond, ruby, sapphire, and emerald are precious stones.
所有的宝石权威都同意，钻石、红宝石、蓝宝石和绿宝石是宝石。
5.
The variety of boule includes ruby, starlight ruby, sapphire, beautiful sapphire and starlight sapphire.
刚玉的种类包括（红宝石、星光红宝石、蓝宝石、艳色蓝宝石、星光蓝宝石）。
6.
diamonds, sapphires, rubies, and emeralds are precious stones.
钻石，蓝宝石，红宝石和翡翠都是珍贵的宝石。
7.
Any of various yellow gemstones, especially a yellow variety of sapphire or corundum.
黄宝石一种黄色的宝石，特别是黄色的刚玉宝石
8.
(of a gem)not shaped by cutting
（指宝石）未雕琢的.
9.
The value of diamond is above ruby.
钻石的价值比红宝石高。
10.
Opals are milky gems.
蛋白石是乳白色的宝石.
11.
a gem (usually a diamond) in a setting by itself.
单件的宝石（通常是钻石）。
12.
Diamonds and the colored stones ruby, sapphire, and emerald are often considered the most expensive among all stones.
钻石和红宝石、蓝宝石和绿宝石等有颜色的宝石常被认为是所有宝石中最名贵的。
13.
made of or resembling sapphire.
蓝宝石制的或蓝宝石般的。
14.
a green variety of chrysoberyl used as a gemstone.
一种绿色的金绿宝石，用作宝石。
15.
A gem cut in the form of a narrow rectangle.
狭长形宝石被切成细条形的宝石
16.
A convex style of cutting gems.
定形宝石切削过的凸形宝石
17.
A brooch or buckle set with jewels.
宝石胸针（扣子）宝石镶嵌的胸针或扣子
18.
A dealer in precious or semiprecious stones.
玉石商做珍贵的宝石或准宝石生意的人