fallback snapshot Aug 2, 2026 · live price loads automatically
Sources and review: Reviewed by MeltOffer on . Market price: Gold API XAU/USD. Unit factors: NIST precious-metals conversions. Karat terminology: FTC Jewelry Guides, 16 CFR § 23.3.
How to compare buyer quotes and published payout benchmarks.
8K gold value by weight
These server-rendered fallback values update with the same live or editable spot price and selected fineness as the calculator.
| Gross weight | Melt value |
|---|---|
| 1 gram | $43.34 |
| 5 grams | $216.68 |
| 10 grams | $433.36 |
| 20 grams | $866.72 |
| 50 grams | $2,166.80 |
| 100 grams | $4,333.60 |
What 8K gold is worth
8K gold is approximately 33.33% pure. Its melt value is weight in grams × 8/24 ÷ 31.1035 × the live gold price per troy ounce. The calculator applies that formula before showing buyer discounts.
Where 8K gold appears
8K gold is approximately one-third gold by weight. A 333 mark states 333 parts gold per 1,000; it is a fineness claim, not independent proof that the piece passed an assay.
Can 8K be described as gold in the United States?
The FTC removed its former 10K minimum threshold from the Jewelry Guides in 2018. That does not make every 333-stamped item genuine: sellers must still describe gold content accurately and avoid deceptive claims. See the FTC's final revision notice.
What a German 333 mark tells you
Germany's Gold and Silver Fineness Act § 5 permits gold articles to be marked with their fineness in thousandths. Therefore 333 is a usable calculation basis, but the stamp alone does not establish origin, maker, weight, or authenticity.
Melt value is the negotiating yardstick
Jewelry buyers pay below melt to cover testing, refining, shipping, and margin. Compare every dollar quote with the melt value and get at least three offers before selling.
Frequently asked questions
How much is 8K gold worth per gram?
The live melt value per gram is gold spot ÷ 31.1035 × 8/24. The calculator updates that amount when the live feed loads.
What percentage of pure gold is 8K?
8K gold is approximately 33.33% pure gold; the balance is alloy metal.
What marks identify 8K gold?
Common marks include 8K, 8KT, 333, or 333‰. A mark is a starting point rather than proof, so uncertain or valuable pieces should be tested without damaging them.
Will a buyer pay the full melt value?
Usually not. Scrap-jewelry buyers deduct their costs and margin, so compare offers as a percentage of melt.
What does 333 mean on gold?
It means a stated fineness of 333 parts gold per 1,000, or 33.3% gold. Use .333 in the calculator unless a reliable assay establishes another fineness.
How much more gold does 9K contain than 8K?
Using .375 for 9K and .3333 for exact 8K, 9K contains 12.5% more gold per gram. Total value still depends on each item's net metal weight.
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