Diamond guide
Master the 4Cs in five minutes
Cut, Color, Clarity, Carat: everything you need to buy with confidence.
The 4Cs
How every diamond in the world is graded.
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Cut
The biggest driver of sparkle. We stock Excellent and Ideal cuts only.
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Color
Graded D (colorless) to Z. G-H looks identical to most eyes at a lower price.
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Clarity
VS1-VS2 stones are eye-clean: inclusions visible only under 10x magnification.
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Carat
Weight, not size. A 0.90 ct looks like a 1.00 ct for ~15% less.
Diamond questions, answered
Lab-grown vs natural: which should I choose?
Both are 100% real diamonds. Choose natural for rarity; choose lab-grown for maximum size and quality per dollar.
What certificate should I look for?
GIA and IGI are the gold standards. Every Gemora center stone above 0.50 ct includes one.