Resource center
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Introducing lapidary art
What is lapidary art? Learn all about the craft of cutting, shaping, polishing or engraving stones and gemstones.
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What is lapis lazuli? Meaning, history & jewelry uses
Looking to understand the allure of Lapis Lazuli? This deep blue gemstone has been prized for over 6,000 years for its rich color, symbolism, and use in fine jewelry, art, and spi…
Read: 6 min
How to clean amethyst jewelry gently and safely
Learn how to clean and care for amethyst jewelry, crystals and rings to help maintain their natural beauty.
Read: 7 min
Labradorite: a complete gemstone guide
Learn about labradorite gemstones, including their fanciful flashes of colors, properties, meaning, history, and care tips.
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How to care for soft & porous gemstones
Learn how to care for soft and porous gemstones like pearls and opals to prevent damage, discoloration, and wear while preserving their beauty.
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Gemstones that change color: nature’s optical illusion
Explore rare gemstones that change color, learning what causes the effect and how to protect them.
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What is palladium?
Learn what palladium is, how it’s used in jewelry and why it’s a durable, tarnish-resistant metal you’ll love.
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How durable are sapphires?
How durable are sapphires? Learn about sapphire hardness and how it ranks on the Mohs hardness scale here!
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What is serpentine jewelry?
Learn about serpentine jewelry, serpentine gemstone meanings and discover where this green gem is found and how it's used.
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Precious vs. semi-precious gems: introducing the “fab four”
What are precious gems and how do they differ from semi-precious ones? Discover the difference here.
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Black gemstones: 14 types with colorful meanings
From rare diamonds to common onyx, explore 14 black gemstones, their meanings, how they form and how to care for them.
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Guide to gemstone certifications
Read this beginner's guide to gemstone certifications to see how getting one can help you buy, sell and get appraisals for your gems.