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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.

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.

Old Mine Cut Matched Pair Wholesale
16 min read

Old Mine Cut Matched Pair Wholesale

Wholesale Old Mine Cut diamonds sold as matched pairs for studs and side stones — squarish-cushion antique faceting, matched for size, tone, and culet character. IGI-gradable, live NYC inventory.

Old Mine Oval Cut Diamonds Wholesale
16 min read

Old Mine Oval Cut Diamonds Wholesale

Wholesale Old Mine Oval lab-grown diamonds — antique high-crown, open-culet Old Mine faceting applied to an oval outline. CVD, IGI-gradable, live NYC inventory.