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Opals and pearls have special setting, cleaning, and storage needs. Our opal and pearl care guide will help you keep your jewelry beautiful.

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Everything you ever wanted to know about pearls and pearl jewelry. Find value guides, scientific data, expert comments, and more in our Gemstone Listings.

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Although natural pearls are extremely rare and expensive, the availability of cultured pearls makes it easier to buy this classic, elegant gem than ever before. However, before choosing a pearl engagement ring stone, you need a crash course to understand this aquatic gem and the special care it requires.

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Prized for millennia, pearls are organic gems with strong associations with the Moon, great value, and weddings. Learn more about pearl symbolism and the lore of the June birthstone.

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We live in a world of crystals. You don’t have to dig deep into the Earth to find them. Even the bones in our bodies and the dust in the air contain them. Learn more about crystalline minerals and gemstones as well as the crystals that grow in living beings.

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Conch Pearl Buying Guide

Considering a conch pearl buying trip to the Caribbean? Quality factors for these gems differ from colored gemstones. Before you make a purchase, learn to evaluate their unique flame structure and other features.

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Ten Gemstones Rarer than Diamond

From the seemingly common to the utterly obscure, you wouldn't guess these ten gemstones are rarer than a diamond! If you're looking for something unique for your next jewelry purchase, check out these ten stunning gemstones rarer than diamond.

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Unique Gem Materials for Jewelry Design

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Amber Buying Guide

One of the earliest known gems, amber’s bright sunshine hues delight and enthrall. Learn more about this ancient gem’s qualities in our amber buying guide.

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How Well Do You Know Your Birthstone Gemology?

How well do you know your birthstone gemology? Take our short quiz and learn about the composition, cutting, and value of birthstones.