4.37ct Antique Old Mine Cut Diamond Ring | GIA M SI1 | 18kt Yellow Gold & Platinum
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The 4ct club is growing here at JbyG HQ, and this one has us particularly excited — for many reasons!
This 4.37ct Antique Old Mine Cut Diamond, GIA certified M SI1, is pure magic. She’s got chunky facets reminiscent of an Old European Cut, hinting that she was likely cut during the transitional period between the two styles. Her soft, slightly elongated shape and 57% depth mean she faces up beautifully — closer to a 5ct diamond visually.
Despite her grading, she’s bright, incredibly lively, and 100% eye clean — we’d never guess her specs based on appearance! We set her in a two-tone antique setting of 18kt yellow gold and platinum, one we’d been saving for a diamond this special — and wow, do they sing together. The gallery details are intricate and romantic, with vintage charm coming from every angle.
A true transitional-era treasure that blends the best of Old Mine and Old European cuts — she’s bold, rare, and downright beautiful.
- 18kt Yellow Gold & Platinum
- Size 6.75 & resizable
- GIA M SI1
- GIA Report Number: 2235528723
- Diamond measures 10.37 - 10.92 x 6.11 mm
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