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What metal is it made of?
18 karat gold
24 karat gold
14 karat gold
How much does it weigh?
by Stephanie Kim ・ 03 Sep 2023 ・5 min read
Understanding gold purity, and how to actually verify it, is the difference between buying what you think you're buying and finding out later you didn't.
Gold purity is measured in karats (K or KT), the proportion of gold in an alloy. Pure gold is 24K, at 99.9% gold. Other karats blend gold with additional metals for durability and to shift the color:
For how each karat affects color and finish specifically, see Gold Purity & Gold Colors: 24K, 18K, 14K & 10K Gold Explained.
A gold hallmark is a stamp indicating purity and often the manufacturer or country of origin: numeric values like "18K" or "750," alongside symbols identifying the maker. It's typically engraved on the piece itself or attached by tag.
If you can't find one, ask the retailer directly. A brand confident in its metal should be able to point to the mark without hesitation.
Sterling silver carries its own version of this: see Silver Hallmarks & Stamps for how those markings work. If you're also weighing solid gold against plated, filled, or vermeil options, our breakdown of the differences covers durability and long-term value across each.
AURÉV Signature 18K Gold Pieces
Determining purity precisely requires proper testing:
These require precision equipment and should be left to professionals.
Gold's market price is public and updates daily. A piece's price should roughly track the spot price for its weight and purity, plus a reasonable craftsmanship margin. A price well below what the metal alone should cost is a signal worth questioning.
A proper receipt should state the fineness and weight of the gold, not just a description like "18K gold ring." If a dispute ever comes up over what you bought, this is your strongest evidence. For the wider question of trusting a brand generally, see how to know if a jewelry brand is legit and men's fine jewelry vs fast fashion.
AURÉV uses 18K solid gold and premium sterling silver, verified through XRF testing on select pieces, and free from nickel or brass. Every piece carries hallmark and purity markings on clasps, earring backs, or ring interiors.
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