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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.

Cushion Cut Diamonds Wholesale NYC
16 min read

Cushion Cut Diamonds Wholesale NYC

A cushion cut diamond is a square-to-rectangular outline with rounded "pillow" corners, cut as a brilliant, modified brilliant, antique, or elongated variant. Guru Diam stocks 382 cushion cut...

10 Best Wholesale Diamond Suppliers NYC
16 min read

10 Best Wholesale Diamond Suppliers NYC

The top wholesale lab-grown diamond suppliers in NYC's Diamond District, ranked on quality, sourcing, pricing, and trade support — updated for 2026.