What Gold Melt Value Actually Measures
Melt value is the raw metal worth of a gold item — what a refiner would pay for the pure gold content after the piece goes into the crucible. The math is weight times fineness times spot price. A 10-gram 18K chain at a $3,850 spot contains 7.50 grams of pure gold worth $928.35. Craftsmanship, brand names, and antique interest do not enter this number at all.
Most scrap gold never gets resold as jewelry. Broken chains, single earrings, class rings, and outdated pendants are melted and settled on pure-metal content, which is why buyers quote offers as a percentage of melt rather than a price for the piece. Once you know the melt value, every offer becomes comparable on one scale regardless of the buyer.
The worked example above uses the defaults: 10 grams, 18 karat, a $3,850 spot, and an 8% buyer fee. Gross melt comes to $928.35, the fee removes $74.27, and the net payout is $854.08. Change any input and the numbers update instantly. For comparing bullion-style pricing across different units, the price per ounce calculator does the same normalization for any commodity.
Karat Systems and Fineness Explained
Karat counts parts of gold out of 24. 24K is 99.9% pure (0.999 fineness), 18K is 75.0%, and 14K — the US jewelry standard — is 58.33%. European hallmarks use the millesimal system instead: 585 for 14K, 750 for 18K, and 917 for 22K. The 585 stamp works out to 58.5%, a hair above the American 58.33% convention this calculator applies.
Regional standards differ noticeably. British jewelry is commonly 9K (37.5%), the minimum legally called gold in the UK. Much of South Asia and the Gulf uses 22K (91.67%) for its richer color and stronger resale culture in those markets. 12K (50%) shows up mostly in older and gold-filled stock. Every option in the karat selector maps to a fixed fineness the formula applies directly.
At a $3,850 spot, pure gold is worth $123.78 per gram. Applying fineness: 22K $113.47/g, 18K $92.84/g, 14K $72.20/g, 12K $61.89/g, 10K $51.58/g, and 9K $46.42/g. A 3-gram 18K band melts for $278.51, a 6-gram 14K men's band for $433.21, and a 15-gram 22K bangle for $1,702.04. Weight moves the final number more than most sellers expect.
Grams, Pennyweights, and Troy Ounces
Precious metals trade in troy weight: 31.1034768 grams per troy ounce and 20 pennyweights (dwt) per troy ounce, so 1 dwt = 1.555 grams. A troy ounce equals about 1.097 regular avoirdupois ounces — heavier than the ounce on food packaging. Grams remain the everyday unit for jewelry outside the US trade, and the unit selector converts your entry into all three systems.
The pennyweight creates an optics trap at the counter. A buyer quoting $80 per dwt for 14K sounds generous until you convert: melt for 14K at a $3,850 spot is $112.29/dwt, so $80/dwt is 71.2% of melt — mid-range, not a premium. Quotes per gram and per pennyweight describe the same money, and the weight converter calculator handles the unit math if a buyer quotes only one basis.
Five pennyweights of 14K at $3,850 melts for $561.43, which is 7.78 grams of alloy. A one-kilogram 0.999 bar at the same spot is worth $123,656.59, and a single troy ounce of 24K is $3,846.15 after its 99.9% fineness. Grams or kilos, the underlying arithmetic never changes: convert to troy ounces, apply fineness, multiply by spot.
How Scrap Buyers Build Their Offer
No buyer pays 100% of melt. A refiner must assay, melt, and process the metal, and a dealer takes a margin in between. Honest outfits pay 70-90% of melt for consumer lots; the sweep on the default example runs $649.85 at 70%, $742.68 at 80%, and $835.52 at 90%. Below 60% ($557.01 on this lot), you are looking at heavy-margin retail buying rather than refining.
Fees hide in several formats: a flat refining charge, a per-dwt counter quote, a minimum lot fee, or a percentage line-itemed on a mail-in check. The $80-per-dwt quote in the last section is one common disguise. Percent-of-melt is the only metric that compares cleanly across buyers, so compute it from the melt value first and judge every offer against it. A price per weight calculator helps normalize quotes quoted per gram, ounce, or pound.
Worked example: a 20-gram 14K chain at a $4,000 spot has a melt value of $1,500.28. A 10% fee nets $1,350.25, while a 70%-of-melt walk-in offer pays $1,050.20 — $300 lower. Same chain, same metal, and the entire gap is the middleman's spread. Sellers who collect three or more quotes routinely pocket 10-15% more on identical lots.
Spot Price Mechanics and Currency Effects
The spot price is the wholesale price of gold for immediate delivery, set continuously during trading from COMEX futures and the LBMA benchmarks in London. Retail quotes follow the bid side — the price a dealer pays you — not the ask. Spot moves every trading day, so run the calculator with the current number rather than last month's screenshot.
A $500 spot swing changes real money even on small lots: the default 10-gram 18K example pays $665.52 at $3,000, $776.44 at $3,500, $887.36 at $4,000, and $998.28 at $4,500 with the 8% fee held constant. Sellers outside the US face one extra step — a dealer quoting in euros or pounds converts the USD spot first, and the currency converter calculator covers that step with fees included.
Gold's long-term appeal rests on its resistance to inflation erosion, and many holders track their position in real terms with the inflation calculator. For payout timing, check spot the morning you sell: mail-in programs that lock quotes for 24 hours can differ meaningfully from walk-ins repricing off the live board. The fee structure matters as much as the headline price.
Verifying Weight and Purity Before You Sell
Weigh on a scale that reads to 0.01 g — jeweler's pocket scales are cheap, while kitchen scales can miss by a full gram, which is $72 of 14K. Weigh stones separately if possible: a 1-carat diamond registers on the scale but adds zero melt value. Posts, clasps, and jump rings all count; they are the same karat as the rest of the piece in most jewelry.
Hallmarks are the first purity check: 585, 750, 917, or plain 14K and 18K stamps. Stamps wear off and fakes exist, so serious buyers verify with acid testing or XRF fluorescence guns that read fineness in seconds without damage. If XRF says your stamped 14K piece is actually 13.5K, expect the offer to drop accordingly — this calculator's strict 58.33% assumes true-to-stamp purity.
Mixed lots should be sorted by karat before weighing, because blending 9K with 22K forces the buyer to price the whole lot at the lowest grade present. Dental gold, coins, and bullion follow different rules — coins often carry collector premiums above melt that scrap math understates. For industrial or non-jewelry metal pieces, the metal weight calculator estimates alloy weights from dimensions.
Filled, Plated, and Rolled Gold: What Has No Melt Value
Gold-filled items are the biggest disappointment at the counter. A 1/20 12K GF stamp means 5% of the total weight is 12K gold bonded to a brass core. A 10-gram GF piece holds 0.5 g of 12K alloy — 0.25 g of pure gold worth $30.95 at a $3,850 spot. Most refining minimum fees exceed that, so small GF pieces are usually unsellable.
Gold-plated (GP), rolled-gold-plate (RGP), and heavy-gold-electroplate (HGE) items carry surface layers measured in microns — fractions of a cent of recoverable metal. Vermeil is sterling silver with a gold flash: the silver underneath has value, the gold layer essentially none. None of these belong in a melt calculation; entering their full weight at any karat wildly overstates reality.
Simple screens before you shop anything: GF stamps read 1/20 14K GF, plating stamps read GP, RGP, or HGE. Gold is not magnetic, but neither is brass — the magnet test rules out plated steel and nothing more. Acid testing from a small scratch distinguishes karat levels, since plating reads as gold for a few seconds before failing. When in doubt, pay a jeweler for a test before shipping.
Selling Strategy, Taxes, and Record Keeping
Collect at least three quotes and compare each as a percent of melt — the worked chain example showed a $300 spread between a 90%-of-melt refiner and a 70% walk-in. Photograph and weigh everything before it leaves your hands, insure mail-in packages for full value, and avoid buyers who quote only per-dwt without showing the spot math. Silence on methodology usually means the margin is embarrassing.
On taxes: in the US, gold is a collectible, so long-term gains are taxed at up to 28% — above the 15% and 20% brackets that apply to stocks. Keep purchase records to establish cost basis, and use fair-market value at the date of death for inherited pieces. Dealers report certain large sales, but the tax obligation exists regardless of any form. Frame the holding like any investment — the ROI calculator turns purchase price and net proceeds into a return percentage.
For wealth tracking, jewelry and bullion belong on the balance sheet at melt value, stated conservatively — the net worth calculator has a line for exactly this kind of asset. Long-run holders also watch purchasing power rather than the raw dollar figure, and the buying power calculator translates a future sale into today's money. Sold carefully, scrap gold is one of the few possessions with a public, verifiable floor price.