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Glossary - A
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- AGS
- The American Gem Society was established in 1934. It is a recognized authority in the testing and certification of Registered Jewelers, Certified Gemologists, and Certified Gemologist Appraisers.
- Alloy
- A term used to describe the mixture of two or more metals. For example, rose gold is an alloy of yellow gold and copper.
- Amethyst
- A purple variety of quartz, amethysts have long been featured in the crown jewels of royalty. These brilliant purple gemstones show highlights of lavender. Amethysts are the birthstone of February.
- Appraisal
- An appraisal includes a brief description and photograph of the item, and includes the cut, color, clarity, and either carat weight for any diamonds, or millimeter dimensions for any gemstones. Your insurance agency can rely on this appraisal to calculate a coverage rate for your diamond or piece of fine jewelry.
- Aquamarine
- A blue variety of beryl (emerald is also a beryl). These bright, light blue gemstones show subtle flashes of pale aqua. The March birthstone is the aquamarine.
- Asscher-Cut Diamond
- This beautifully unique shape is nearly identical to the emerald-cut, except that it is square. Also, this shape has a pavilion that is cut with rectangular facets in the same style as the emerald-cut.
