How Much Is 300 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.

For large totals, consider at least one refinery/online quote; the % difference can outweigh the inconvenience.

If your total is very high, document weight and stamps (photos) before shipping or leaving items with a buyer.

Adjacent gram pages: 250g350g →

At the live spot used on this site (USD), 300 g of 18K gold has a rough melt value of about $32,622.00. This is not a purchase offer—just an estimate from spot × weight × purity.

Weighing & sorting tips

  • If shipping, pack securely and photograph the contents and scale reading; choose insured shipping for high-value lots.
  • If the item is plated or filled, it won’t follow karat melt math; check stamps like GF/GP/HGE before using a gold-only estimate.

Gold Value Calculator

$/troy oz

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

Total gold value$32619.00

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

Est. offer at%:$16309.50

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.

Melt value by karat (300 g)

Same weight, different purity—use this to sanity-check whether your item’s stamp matches your expected value.

KaratMelt (USD)
10K$18,123.00
14K$25,371.00
18K$32,622.00
22K$39,870.00
24K$43,494.00

What buyers might pay for this weight (illustrative)

Dealers pay a share of melt. Below uses the same total melt as this page ($32,622.00). Bulk lots often get the best % from refineries or large online buyers; the tradeoff is turnaround time and verification steps.

Buyer typeTypical % of meltEst. offer (USD)
Pawn shop5070%$16,311.00$22,835.40
Local gold buyer / jeweler6580%$21,204.30$26,097.60
Online / mail-in buyer8092%$26,097.60$30,012.24
Refinery (bulk / high volume)8895%$28,707.36$30,990.90

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

How we calculate melt

This page uses our live USD per-gram rate for 18K. In words: 300 g × $108.74/g ≈ $32,622.00 before any buyer haircut.

Related links

FAQ

How much is 300 grams of 18K gold worth?
At the live USD spot price we use on MyGoldCalc, 300 g of 18K gold has a rough melt value of about $32,622.00. That is weight × 18K purity × gold price per gram—not a quote to buy your item.
Is $32,622.00 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.
Do bulk lots get better payout percentages?
Often yes with established buyers, online buyers, or refineries—because fixed costs spread out over more weight. The tradeoff is verification time and sometimes minimums.
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.