Polariscope Guide, Part 1: Testing Gemstone Refraction
The polariscope is an essential tool for gem identification. Learn how it works, how to use it, and how to test gemstone refraction.
Gem Formation: How are Gemstones Created?
Gem formation usually involves mineral crystallization and other geological processes. Learn how these affect the gemstone properties gemologists…
Gemstone Optical Properties
Learn how gemstone optical properties, like refractive index and pleochroism, help gemologists identify gems and lapidaries choose cuts.
Distinguishing Diamonds: Educating Your Eyes
Distinguishing diamonds from their lookalikes requires educated eyes. Learn what visual features to look for and the properties of many popular…
The 10 Best Places to Propose in the USA
You don’t have to travel too far to find an exciting proposal destination. Here are our choices for the top 10 best places to propose in the USA.…
Spinel Buying Guide
Master spinel buying with our comprehensive guide covering the 4 Cs, color grading, pricing, origins, and how to identify quality natural vs synthetic…
Romantic Proposal Ideas for Everyone
Overwhelmed by romantic proposal ideas that seem too expensive or creative for you? Here are some options for every budget and personality type.…
Refractometer Guide, Part 1: Refractive Index Testing
A gem refractometer is the best tool for refractive index testing. Learn how to use this instrument to conduct this and other gem identification…
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