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Emerald

Antique Engagement Rings

You can find many amazing antique engagement rings from a variety of time periods. Before you shop, learn more about these styles and how to identify…

A Guide to Belle Époque Jewelry

Belle Époque jewelry combined opulent but graceful metalwork with a variety of gems. Learn more about this style and how it inspires modern jewelry…

Polishing Metals: An Introduction

Getting a brilliant polish is one of the most important steps to finishing fine jewelry. Learn the tools and techniques you’ll need for polishing…

Chemical Formulas for Gemstones

Chemical formulas identify the chemical composition of minerals, including gems. Learn what their symbols, numbers, and parentheses mean.…

What is Gemstone Luster?

Gemstone luster describes how a gem’s surface looks when it reflects light. Learn the common terms gemologists use for this property and what can…

What is a Gem?

Even the most general definition of a gem has many exceptions. Learn what qualities have been used to identify gemstones both scientifically and…