How Much Is 30 Grams of 18K Gold Worth?

Estimates use the same USD spot basis as our calculators. Not financial advice, not a purchase offer, and not a guarantee of what any buyer will pay.

This weight band is common for everyday jewelry lots. Separate by karat first, then compare offers as a % of melt.

Solder-heavy repairs (clasps, size adjustments) can skew purity reads; reputable buyers may assay or test multiple points.

Adjacent gram pages: 29g31g →

At the live spot used on this site (USD), 30 g of 18K gold has a rough melt value of about $3,262.20. This is not a purchase offer—just an estimate from spot × weight × purity.

Weighing & sorting tips

  • If your buyer tests only one spot, ask them to test a second point on repaired pieces (solder areas can read differently).
  • If a shop quotes a number fast, ask what % of melt they’re paying—percent clarity beats guessing.

Gold Value Calculator

$/troy oz

Adjust this price to project a future value. 24K per troy oz.

Total gold value$3261.90

Current 18K price$108.73/gram • $3381.88/oz

Est. offer at%:$1630.95

Formula: weight × karat multiplier × spot price. 14K = 0.585, 18K = 0.75, 10K = 0.417.

Same USD spot basis as the estimates on this page. Adjust weight, unit, or karat to explore scenarios.

How we calculate melt

This page uses our live USD per-gram rate for 18K (derived from spot and purity), not the headline 24K figure alone. In words: 30 g × 18K alloy × $108.74/g ≈ $3,262.20 full metal value before any buyer haircut.

What buyers might pay for this weight (illustrative)

Dealers pay a share of melt. Below uses the same total melt as this page ($3,262.20). Mid-size lots are prime for comparison shopping: pawn (fast cash) vs online (higher %) vs refinery (best for bulk).

Buyer typeTypical % of meltEst. offer (USD)
Pawn shop5070%$1,631.10$2,283.54
Local gold buyer / jeweler6580%$2,120.43$2,609.76
Online / mail-in buyer8092%$2,609.76$3,001.22
Refinery (bulk / high volume)8895%$2,870.74$3,099.09

Ranges are common experience bands; shops and mail-in buyers vary. Not a quote.

Melt value by karat (30 g)

KaratMelt (USD)
10K$1,812.30
14K$2,537.10
18K$3,262.20
22K$3,987.00
24K$4,349.40

Related links

FAQ

How much is 30 grams of 18K gold worth?
At the live USD spot price we use on MyGoldCalc, 30 g of 18K gold has a rough melt value of about $3,262.20. That is weight × 18K purity × gold price per gram—not a quote to buy your item.
Is $3,262.20 what a pawn shop will pay?
Usually not. Pawn shops and many buyers pay a percentage of melt—often roughly 50–70% for quick cash purchases. Online buyers may pay a higher percentage. Always get multiple offers.
What if my lot has mixed karats?
Separate by stamp (10K/14K/18K etc.) and weigh each group. A single blended offer for mixed karats is often lower than itemized pricing.
Does 18K gold price change every day?
Spot gold moves with the market. Our pages refresh on a regular schedule (ISR). Use the same spot basis as our calculators when comparing numbers.