Hallmark / Assay Explainer & Checklist

Understand UAE fineness (999 / 916 / 875 / 750 / 585), verify stamps, and keep a record.

Click a card to highlight. Use the converter below to double-check.
24K
999
≈ 99.9% pure
22K
916
≈ 91.6% (common in UAE)
21K
875
≈ 87.5% (also common)
18K
750
≈ 75.0%
14K
585
≈ 58.5%
How to read hallmarks
  • Fineness (e.g., 916) = parts of pure gold per 1000.
  • Karat ≈ (fineness ÷ 1000) × 24 → 999 ≈ 24K, 916 ≈ 22K, 875 ≈ 21K, 750 ≈ 18K, 585 ≈ 14K.
  • Approved Assayer mark confirms a licensed lab verified the item.
  • Maker’s trademark often appears with the assay mark.
Checklist
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Quick convert
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999 ≈ 24K • 916 ≈ 22K • 875 ≈ 21K • 750 ≈ 18K • 585 ≈ 14K

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Preview
Good light, close focus. This helps staff verify stamps faster.

Note: Educational guidance only. Final purity and eligibility are confirmed by authorised assay/testing.

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