REALGEM FIELD GUIDE / VOL. I
Your gemstone
buying guide.
A practical collecting library for people who want to understand what they are buying—and why it matters.WRITTEN FOR BUYERS, COLLECTORS & SELLERS
ESSENTIAL READING
How to look at a gemstone listing.
Begin with identity. Then evaluate treatment, weight, dimensions, origin language, documentation, seller credibility, and the conditions of the transaction.
Start with treatment disclosure →
FIELD NOTE 001Treatments
Heating, oiling, filling, irradiation—and why disclosure matters.
Open the complete guide →027 min READOrigin
What geography can—and cannot—tell you about a stone.
Open the complete guide →039 min READCertification
When an independent laboratory report adds meaningful confidence.
Open the complete guide →0410 min READColor & clarity
Hue, tone, saturation, inclusions, and transparency explained.
Open the complete guide →058 min READCut & weight
Face-up size, proportions, dimensions, and carat weight.
Open the complete guide →0611 min READNatural vs. synthetic
Natural, lab-grown, imitation, treated, and assembled materials.
Open the complete guide →THE REALGEM PRINCIPLE
“A buyer should never need to guess what a seller already knows.”Explore the gemstone collection →