Tourmalines come in a wide variety of exciting colors. In fact, tourmaline has one of the widest color ranges of any gem species, occurring in various shades of virtually every hue.

订婚戒指的浪漫传统经久不衰。 罗马人率先将一个普通的小铁戒指用作订婚戒指。

自称为理想主义者，对 GIA 的奉献使 GIA 向全球发展，并引发了宝石学的创新。

Kara Ross（卡拉·罗斯）展示了自己的著名珠宝系列，拉开了“校友风采：学生到明星”系列的序幕

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关于研究宝石学家课程、研究珠宝学家课程或者珠宝设计和工艺课程的预计入学费用的其他信息。

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Learn about the factors that make jade so desirable.

Historians believe the link between humans and lapis lazuli stretches back more than 6,500 years.

Turquoise might lack the sparkle and clarity of transparent colored gemstones like ruby, emerald, and sapphire, but its multi-layered history and soul-satisfying color make it a desirable gem. Its color can range from dull greens to grass greens to a bright, medium-toned, sky blue

Individual opals are as diverse as snowflakes or fingerprints and can vary widely in appearance and quality. Learn about the factors that make opals so desirable!

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

Somewhere in Brazil in the 1500s, a Spanish conquistador washed the dirt from a green tourmaline crystal and confused the vibrant gem with emerald. His confusion lived on until scientists recognized tourmaline as a distinct mineral species in the 1800s.

Learn about the factors that make kunzite so desirable.

Typically, turquoise is judged on three basic quality factors: color, texture and the presence or absence of matrix. Learn more about turquoise and what makes this gem so sought after!

Many people have heard of zircon but never seen it. This is mostly because of colorless zircon’s wide use as a diamond simulant in the early 1900s.

Jade has been cherished through the centuries. To the Chinese it is the