Take the Birthstone Quiz
What do you know about birthstones? Take our short birthstone quiz and learn about the makeup, cutting, and value of these popular gemstones.
Custom Round Brilliant Cut Mahenge Garnet, Tanzania, 3.56 Carats cts
This garnet shifts to a stunning, intense orangy reddish pink under incandescent light. It has an RI of about 1.748 compared with a rhodolite I checked…
Why Custom Gem Cutting Makes a Difference
How does commercial cutting stack up to custom gem cutting? Compare these two similar rhodolite garnets in four key ways and see the difference.…
19 Stunning Yellow Gemstones (With 9 Best Picks for Jewelry)
From bright, sunny colors to deep golden hues, yellow gemstones are warm and inviting. Learn how to assess the quality of yellow gems and find out…
Ethiopian Emeralds (Better than Colombian?)
Learn everything you need to know about Ethiopian emeralds, including quality, pricing, gemology, and how they compare to those from traditional…
Tanzanite Buying Guide
Master tanzanite buying with our expert guide covering the 4 Cs, treatments, simulants, and investment tips. Learn to identify quality tanzanite…
Cabochon Carving Tools and Techniques
Whether you’re creating a simple gem accent or an exquisite cameo, the tools and techniques of cabochon carving are the same. Get started with this…
The Fifth C: What Determines Diamond Cost?
What makes diamonds so expensive? And who decides how much they cost? Why do two diamonds with the same grades in the Four Cs have different prices?…
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