钻石净度是指其无内含物和表面特征的程度。

大多数宝石级钻石的成色等级取决于它的无色程度。

许多人会把钻石切工等同于钻石的形状。实际上钻石切工等级取决于其刻面与光线的相互作用结果。

作为消费者，您在市场上经常遇到经过处理以改变其外观的宝石。 经常出现的话题是特定宝石是否经过处理。 从某种意义上说，地球上的宝石被人类发现后都发生了改变，以便在珠宝中使用。

合成宝石材料是在实验室中制成的一种材料，但却具有与其相对应的天然矿物的相同的化学、光学和物理特性，虽然在某些情况下，如合成土耳其石和合成蛋白石，可能会有其他化合物的存在。

Topaz actually has an exceptionally wide color range that, besides brown, includes various tones and saturations of blue, green, yellow, orange, red, pink, and purple. Colorless topaz is plentiful, and is often treated to give it a blue color

Most authorities agree that the name topaz comes from Topazios, the old Greek name for a small island in the Red Sea, now called Zabargad. (The island never produced topaz, but it was once a source of peridot, which was confused with topaz before the development of modern mineralogy.)

Learn about tourmaline's durability and how to care for your tourmaline jewelry.

Learn about the factors that make tourmaline so desirable.

蓝宝石属于刚玉矿物。它的颜色可以是纯蓝色，但范围从绿蓝色到紫蓝色不等。“蓝宝石”这个名称也可以用来指代任何非红色且不属于红宝石（另一种刚玉）的刚玉。

Learn about sapphire's durability and how to care for your sapphire jewelry.

Traditionally, sapphire symbolizes nobility, truth, sincerity, and faithfulness.

The name “sapphire” can also apply to any corundum that’s not ruby, another corundum variety

彩色钻石一直受到媒体的广泛关注。它们经常会打破拍卖行的记录。了解更多关于这些最罕见的宝石学奇迹的信息。

People have coveted natural pearls as symbols of wealth and status for thousands of years.

Perfect shining spheres. Lustrous baroque forms. Seductive strands, warm to the touch. Pearls are simply and purely organic

Peridot is the gem variety of the mineral olivine. Its chemical composition includes iron and magnesium, and iron is the cause of its attractive yellowish green colors.