Jewelry Buying Guides
Straightforward answers to the questions customers ask Terra most, checked against GIA and FTC sources. Each guide links to the design tool where you can try what you’ve learned.

Lab-Grown vs. Natural Diamonds
Formation, grading reports, FTC disclosure rules and value considerations.

14K vs. 18K Gold vs. Platinum
Purity markings, color, weight, everyday wear and care.

Diamond Shapes & Carat Sizes
Carat weight vs. face-up millimeters, with a size comparison tool.

Men’s Chains & Bracelets
Cuban, rope, Figaro and box links; widths, lengths, sizing and clasps.

Heirloom Jewelry Redesign
What can be reused, inspection, and stone and metal considerations.
Questions a guide can’t answer?
Bring them to Terra. He’s happy to compare metals, stones and sizes with you in person.
