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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.

Coffin Cut Diamonds Wholesale Guide
16 min read

Coffin Cut Diamonds Wholesale Guide

Wholesale Coffin cut lab-grown diamonds, IGI-certified, in stock from the NYC Diamond District. The antique tapered step cut for Art Deco-style rings — trade pricing, live inventory.

Octagon Cut Diamonds Wholesale Guide
16 min read

Octagon Cut Diamonds Wholesale Guide

Wholesale Octagon cut lab-grown diamonds — an eight-sided step cut with fully faceted truncated corners. IGI-certified, in stock from the NYC Diamond District.

Star Cut Diamonds Wholesale Guide
16 min read

Star Cut Diamonds Wholesale Guide

Wholesale Star cut lab-grown diamonds — a five- or six-pointed novelty fancy shape for accent and statement stones. IGI-certified, in stock from the NYC Diamond District.

Oval Step Cut Diamonds Wholesale Guide
16 min read

Oval Step Cut Diamonds Wholesale Guide

Wholesale Oval Step Cut lab-grown diamonds — an oval outline with step faceting for a hall-of-mirrors light effect instead of brilliant sparkle. IGI-certified, in stock from the NYC Diamond District.