Hallmarks

A hallmark is a small stamp in the metal that tells you what the alloy is. On a Avaiya Gems ring it is usually inside the shank. It is not a diamond certificate and it is not a brand logo — it is a purity mark.

Where to look

Open the ring so the inner curve faces you. The mark is often opposite the setting. On a thin band it can be tiny. A loupe or a phone camera in good light helps.

Common gold marks

• 375 — 9 karat. 37.5% gold.
• 585 — 14 karat. 58.5% gold.
• 750 — 18 karat. 75% gold.
• 916 — 22 karat. 91.6% gold.
• 999 — fine gold. Rare on engagement rings because it is too soft for daily wear.

Some rings also show 10K, 14K, or 18K instead of the three-digit millesimal mark. Both describe the same idea: how much of the metal is gold.

Platinum and other metals

• 950 or PT950 — platinum that is 95% pure.
• PT or Plat — platinum, often with a purity number beside it.
• 925 — sterling silver. We do not present silver as platinum or gold.

What a hallmark does not tell you

It does not grade the diamond. Cut, colour, clarity, and carat live on the product page when they are on file. A missing hallmark is not proof the metal is fake, and a present hallmark is not a laboratory report for the stone. If a mark on your ring is unclear, send a close photo to sales@avaiyagems.com.