1. Jewelry Identifier
  2. Gold melt value
  3. 18K · 100 g

* Gold melt value

18K 100 g melt value today

100 g of 18K gold (75.0% pure gold) is worth about $9,785 in melt value as of July 13, 2026 — a scrap buyer typically pays ~85% of that ($8,317) after refining and margin. That weight is typical of solid gold chains, heavy bracelets, multi-piece lots.

Published July 11, 2026 · Updated July 13, 2026

18K · 100 g — live estimate

Melt value
$9,785
Realistic scrap (~85%)
$8,317
Pure gold content
75.000 g
Per-gram melt
$97.85/g
Purity
75.0% (18K)
As of
July 13, 2026

The calculation

melt = spot/g × purity × weight(g)
     = $130 × 0.75 × 100
     = $9,785

Scrap buyers typically deduct ~15% for assay and refining, landing near $8,317. Designed or branded pieces can sell for more intact than melted.

What usually weighs about 100 g?

At 100 g, you are usually looking at solid gold chains, heavy bracelets, multi-piece lots. Confirm the hallmark matches 18K before you accept a scrap offer — plated lookalikes are worth far less.

Before you sell

  1. Confirm the 18K stamp (or equivalent fineness mark).
  2. Weigh in grams on a jewelry scale; exclude stones and non-gold parts.
  3. Compare at least two scrap offers against the $8,317 ballpark above.
  4. Not sure of the metal? Scan it in the Jewelry Identifier app first.

* Frequently asked

FAQ

Q. How much is 100 g of 18K gold worth today?
A. About $9,785 in pure melt value as of July 13, 2026. A realistic scrap offer is near $8,317 (~85% of melt) after refining and margin.
Q. How much pure gold is in 100 g of 18K?
A. 18K is 75.0% gold by weight, so 100 g contains about 75.000 g of pure gold.
Q. How do I calculate 18K value myself?
A. Multiply today's gold spot per gram ($130) by the purity (0.75) and by the weight in grams (100). That is $130 × 0.75 × 100 = $9,785.
Q. Is 100 g a normal weight for 18K jewelry?
A. Yes for solid gold chains, heavy bracelets, multi-piece lots. Weigh only the gold — exclude stones and non-gold findings — before using this estimate.

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