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sapphire

Is Spinel Expensive?

Once known only as a ruby impersonator, the popularity and value of spinel have skyrocketed in recent years. This beautiful transparent gemstone…

Is Turquoise Expensive?

Turquoise is one of the world’s most popular opaque gemstones. Used as ornamentation and a symbol of wealth for thousands of years by cultures…

Valuation – Main Lesson

Unit 11: How Much is a Gem Worth? What’s This All About?  The big question! Jake teaches us the famous “Four Cs” system…

Inclusions – Optional Activity

Inclusion Experiment – Inclusion Detective Laboratory Introduction What are you doing? You’re learning to read the “stories”…

Identification – Main Lesson

Unit 4: How to Identify Gems What’s This All About?  Become a gem detective! Jake teaches us how scientists figure out what type of gemstone…

Extraction – Optional Activity

Extraction Experiment – Backyard Mining Operation Introduction What are you doing? You’re experiencing authentic mining techniques…

Is Amethyst Expensive?

Amethysts are one of the most popular gemstone varieties. Used in jewelry at every price point, and you can find them set in inexpensive children’s…

Middle Weight Jewelry

Move over dainty chains and barely-there stackable rings, the cutting-edge jewelry at the 2025 Las Vegas shows was noticeably more substantial…