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certificate jewelry, Jade

Jade

jade refers to an ornamental mineral, often known for its green types, though appears naturally in other colors as well, especially yellow and white. jade can refer to either of two different silicate minerals: nephrite, or jadeite.

certificate jewelry, Nano Alexandrite

Nano Alexandrite

Alexandrite is known as "Emerald by day, ruby ​​by night" because it has one of the most dramatic color changes among gemstones, such as green in sunlight and red in incandescent light. The very precious habit of alexandrite color change is caused by the presence of minor impurities in the element chromium. The most desirable Alexandrite colors are those that have a very clear color change.

certificate jewelry, Garnet

Garnet

garnets are a category of silicate minerals that have been used since the Bronze Age as gemstones and abrasives. all species of garnets possess similar physical properties and crystal forms, but differ in chemical composition.