The 6.4mm Rule: Why Your 1-Carat Round Diamond Looks Small #shorts

Think a 1.00ct Round diamond always measures the same size? Think again. Rob and Josh—industry veterans who supplied Tiffany and Cartier—expose the "Short-Cutting" tactic manufacturers use to hit weight milestones while sacrificing visual size.

A properly cut 1-carat round diamond should have a minimum diameter of 6.4mm. However, many cutters produce stones that only measure 6.2mm or 6.3mm. It doesn't sound like much on paper, but side-by-side, the difference is massive. You're paying a 1-carat price but getting a 0.85-carat look because that weight is hidden in a deep belly where you can't see it.

In this video:

The 6.4mm Standard: Why this is the golden number for a 1ct Round.

Hidden Vertical Weight: Where that missing diameter is being hidden.

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Видео The 6.4mm Rule: Why Your 1-Carat Round Diamond Looks Small #shorts канала Your Diamond Guys: Diamond Buying Guide & Advice