December 8, 2025

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About Hasenfeld-Stein
Hasenfeld-Stein has a reputation of selling some of the most extraordinary Rounds, Asschers, Cushions, Emeralds, and Princesses. But, we are most proud of is our FireMark® brand of diamonds, which is not only exclusive and patented, but one of the most brilliant diamonds in the world. In fact, our FirePrincess® consistently rivals an Ideal Round in brilliance, with an average 98% light return. Our FireCushion® is a GIA Excellent/Excellent, (not a Modified Brilliant), and has a more brilliant and larger appearance than any other Cushion in the marketplace today.

Please note our new address: 90 Matawan Road, Suite 101 Matawan, NJ 07747

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