Resource center
Read: 5 min
How to care for soft & porous gemstones
The delicate shimmer and unique beauty of soft gemstones, like opals, turquoise and pearls, can add incredible personality to any jewelry collection. But unlike harder stones, the…
Read: 6 min
Gemstones that change color: nature’s optical illusion
Explore rare gemstones that change color, learning what causes the effect and how to protect them.
Read: 7 min
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.
Read: 4 min
How durable are sapphires?
How durable are sapphires? Learn about sapphire hardness and how it ranks on the Mohs hardness scale here!
Read: 6 min
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.
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What is alexandrite?
What is alexandrite? Discover the origin and symbolism behind the rare, color-changing gem.
Read: 4 min
The amethyst color spectrum and symbolism
Explore the amethyst color spectrum from purple to green and see what makes this royal-colored crystal so intriguing!
Read: 6 min
What is a zircon gemstone? A brilliant option for your jewelry!
If you’ve always wondered what a zircon gemstone is, here’s your chance to see why people love this popular gem!
Read: 2 min
October's birthstones: opal & tourmaline
October's birthstones are fitting: Opal, valued for its “shifting play” of color, and tourmaline, which comes in a rainbow of colors and combinations.