Reference library
Buying guides, written at the bench.
Each guide is short, specific and free of sales language: what to check, what it costs, and where people usually get it wrong. If a guide is missing something you need, ask us and we will add it.
13 guides
Foundations
Stones
Moissanite vs Lab-Grown Diamond
Both are affordable. They do not look the same, and they do not age the same.
GuideLab-Grown vs Natural Diamond
Identical in the loupe, different in the invoice, and very different on resale.
GuideCarat to Millimeter Chart
The numbers that actually decide how a stone looks on a hand.
GuideHow to Read a Gemstone Certificate
What GRA and IGI reports actually state, and what they leave out.
Design
Ring Width Guide
From 1.2 mm stacking bands to 10 mm men’s rings — what each width does.
GuideMatching a Wedding Band to an Engagement Ring
Why the gap appears, and the four ways to close it.
GuideSetting Types Explained
Prong, bezel, channel, pavé, tension — what each one does to the stone.
GuideMetal Guide: 14K, 18K, Platinum and Silver
What each metal does after two years of daily wear.
Fit
Custom
Not sure which guide applies?
Send a photograph of the piece or the stone and we will point you to the right page — or just answer it.
Free CAD before you commit
222 engagement designs
269 necklaces & pendants
Matched pairs from stock
18 years under one roof