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Insights & Guides

The Guru Diam Blog

Expert articles on lab-grown diamonds, wholesale sourcing strategies, and the latest trends shaping the jewelry industry.

Diamond Size Chart: MM to Carat
15 min read

Diamond Size Chart: MM to Carat

A diamond size chart converts a stone's millimeter diameter (its actual physical, visible width) into the corresponding carat weight for a given shape.

VVS Clarity Diamond Guide: VVS1 vs VVS2
15 min read

VVS Clarity Diamond Guide: VVS1 vs VVS2

What VVS clarity really means — VVS1 vs VVS2, how it compares to VS and flawless grades, and when it's actually worth paying for.

Orange Diamonds: Complete Buying Guide
15 min read

Orange Diamonds: Complete Buying Guide

An orange diamond is a natural or lab-grown diamond whose crystal structure contains a specific combination of trace nitrogen defects that scatter…

Green Diamonds: A Trade Buying Guide
15 min read

Green Diamonds: A Trade Buying Guide

A green diamond is a diamond whose color comes from natural radiation exposure that displaces carbon atoms within the crystal lattice, producing a...

5 Carat Diamond Price Guide
15 min read

5 Carat Diamond Price Guide

A 5 carat diamond sits well into statement-piece territory, and its price varies enormously depending on whether it's natural or lab-grown, and by...

Stackable Diamond Rings: A Sourcing Guide
16 min read

Stackable Diamond Rings: A Sourcing Guide

Stackable diamond rings are thin, low-profile bands — typically diamond-set, plain, or textured — designed to be worn several at a time on the same finger.

Rose Cut Diamond Guide
19 min read

Rose Cut Diamond Guide

A rose cut diamond is a diamond with a flat or nearly flat base and a domed, faceted crown rising to a point — typically 3, 6, 12, or 24 triangular facets.

Lab-Grown Diamond vs. Moissanite
16 min read

Lab-Grown Diamond vs. Moissanite

The core difference is composition: a lab-grown diamond is real diamond — pure crystallized carbon, grown via CVD, chemically and optically identical...