Great Diam is one of the very few companies in the industry focused on creating unique diamonds, primarily based on antique styles. As manufacturers for the past two generations, we take pride in being one of the very few manufacturers in this product segment.

Great Diam is constantly innovating and developing a range of products to better serve our clients. We are pioneers in manufacturing unique, special, and organic-shaped diamond cuts and shapes. Classic cuts like Rosecut, Old Mine Cut, Old European Cut, Portrait Cut, & Modern cuts like Fancy Stepcuts, matching pairs of fancy shapes like Trapezoid, HalfMoon, Shield, Kites, Lozenge, Hexagonal, etc.