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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…

Pearl Buying Guide

In this golden age of pearls, a wide variety of shapes, sizes, and colors are available. Our pearl buying guide can help you select a pearl you’ll…

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…