Precious Metals Melt Value & Scrap Bullion Valuation Guide
Whether you are evaluating old scrap jewelry before visiting a pawn shop, verifying wholesale bullion prices, cataloging estate silverware, or calculating multi-item scrap lots, our Precious Metals Calculator provides accurate, transparent melt valuation for Gold (XAU), Silver (XAG), Platinum (XPT), and Palladium (XPD) across 32 world currencies and 9 canonical weight denominations.
How to Use the Precious Metals Calculator
- Select Your Calculation Mode: Use Quick Melt Calculator for single rings, bars, or coins, or switch to Scrap Lot Builder to sum multiple items of varying metals and purities.
- Choose Your Metal & Purity: Select Gold, Silver, Platinum, or Palladium. Choose the standard hallmark fineness (e.g. 14K Gold, Sterling 925 Silver, Pt950 Platinum) or select Custom Fineness to enter exact decimal purity or percentages.
- Enter Gross Weight & Weight Unit: Weigh your item on a scale and select the matching unit: grams, troy ounces, pennyweights (dwt), kitchen scale ounces, tolas, kilograms, or milligrams.
- Select Spot Pricing Basis: By default, calculations automatically sync with live wholesale market spot rates. Click Enter Custom Spot Override if markets are closed or if you have a local jeweler quote to test.
- Review Your Valuation Breakdown: Inspect pure fine metal content, wholesale melt benchmark (100%), and realistic dealer cash payout estimates (Refiner 95%, Jeweler 88%, Pawn Shop 75%).
Understanding Calculator Inputs & Valuation Parameters
Gross Item Weight
The total mass of the object as measured on a physical scale before purity extraction. Note that non-metal components (gemstones, watch movements, internal springs) must be excluded from this figure.
Purity & Fineness Rating
The proportion of precious metal alloyed into the piece. Measured in Karats out of 24 for gold, or parts-per-thousand (millesimal fineness e.g. 925 for sterling silver, 950 for platinum).
Spot Price Benchmark
The current trading price for one troy ounce of raw, unrefined bullion bar on major commodity exchanges (LBMA and COMEX). Spot rates fluctuate continuously during trading hours.
Dealer Payout Tiers
Realistic cash offers based on industry buyer category: High-volume refiners (~95%), bullion dealers (~88%), and pawn shops (~75%), accounting for melting, assay, and operational margins.
Mathematical Formulas & Worked Numerical Examples
All bullion valuation calculations adhere to strict international metrology standards:
1. Pure Metal Weight (g): Gross Weight (g) ร (Purity Fineness รท 1000 or Karat รท 24)
2. Pure Weight (Troy Oz): Pure Metal Weight (g) รท 31.1034768
3. Intrinsic Melt Value: Pure Weight (Troy Oz) ร Spot Price Per Troy Ounce
4. Dealer Cash Offer: Intrinsic Melt Value ร Payout Percentage (e.g. 0.88 for 88%)
Worked Example 1: 14K Gold Ring (5.00 Grams)
Suppose gold spot price is $4,000.00 / oz t. 14K gold has a fineness of 14 รท 24 = 0.583333 (58.33% pure).
- Fine Pure Gold: 5.00 g ร (14 รท 24) = 2.9167 grams
- Fine Troy Ounces: 2.9167 g รท 31.1034768 = 0.093774 oz t
- 100% Intrinsic Melt Value: 0.093774 oz t ร $4,000.00 = $375.10
- Refiner Cash Offer (95%): $375.10 ร 0.95 = $356.35
- Pawn Shop Offer (75%): $375.10 ร 0.75 = $281.33
Worked Example 2: Sterling Silver Flatware (120.00 Grams)
Suppose silver spot price is $50.00 / oz t. Sterling silver has a hallmark of 925 (92.5% pure silver).
- Fine Pure Silver: 120.00 g ร 0.925 = 111.00 grams
- Fine Troy Ounces: 111.00 g รท 31.1034768 = 3.56873 oz t
- 100% Intrinsic Melt Value: 3.56873 oz t ร $50.00 = $178.44
- Bullion Dealer Offer (88%): $178.44 ร 0.88 = $157.03
Worked Example 3: Platinum Pt950 Band (7.00 Grams)
Suppose platinum spot price is $1,500.00 / oz t. Pt950 contains 95.0% pure platinum.
- Fine Pure Platinum: 7.00 g ร 0.950 = 6.65 grams
- Fine Troy Ounces: 6.65 g รท 31.1034768 = 0.21380 oz t
- 100% Intrinsic Melt Value: 0.21380 oz t ร $1,500.00 = $320.70
Supported Metals & Purity Standards
Never apply gold karat logic to silver or platinum. Each precious metal adheres to statutory hallmarking conventions:
| Metal | Purity Rating | Fineness (โฐ) | Percentage | Common Use Case |
|---|---|---|---|---|
| Gold (Au) | 24K (Pure Bullion) | 999.9 | 99.9% | Investment bars, sovereign coins, wafers |
| Gold (Au) | 22K (Crown Gold) | 916.7 | 91.67% | South Asian bridal jewelry, British Sovereigns |
| Gold (Au) | 21K Gold | 875.0 | 87.5% | Arabian Gulf and Middle Eastern gold jewelry |
| Gold (Au) | 18K Gold | 750.0 | 75.0% | Diamond fine jewelry, Swiss luxury watches |
| Gold (Au) | 14K Gold | 583.3 / 585 | 58.33% | Everyday durable North American jewelry |
| Gold (Au) | 10K Gold | 416.7 / 417 | 41.67% | US legal minimum karat, high-school rings |
| Silver (Ag) | Fine Silver .999 | 999.0 | 99.9% | Silver bullion bars, 1 oz Silver Eagles |
| Silver (Ag) | Sterling Silver .925 | 925.0 | 92.5% | Flatware, tableware, chains, silver rings |
| Silver (Ag) | Coin / US 90% Junk | 900.0 | 90.0% | Pre-1965 US dimes, quarters, half-dollars |
| Platinum (Pt) | Pt950 Platinum | 950.0 | 95.0% | High-end wedding bands, solitaire mountings |
| Palladium (Pd) | Pd950 Palladium | 950.0 | 95.0% | Lightweight platinum-family jewelry & catalytic metal |
Troy Ounces vs. Kitchen Ounces: The Critical Distinction
One of the most frequent mistakes scrap sellers make is weighing their jewelry on a household kitchen or shipping scale (which reads in avoirdupois ounces) and multiplying by the troy ounce spot price. The table below illustrates the standard physical conversions:
| Weight Unit | Grams Equivalent | Troy Oz Equivalent | Industry Standard Usage |
|---|---|---|---|
| Troy Ounce (oz t) | 31.1035 g | 1.0000 oz t | Global wholesale bullion contracts, coins, bars |
| Avoirdupois Ounce (oz) | 28.3495 g | 0.9115 oz t | Kitchen scales, postage scales (~8.86% lighter than troy oz) |
| Pennyweight (dwt) | 1.5552 g | 0.0500 oz t | US jeweler bench scale unit (exactly 1/20 troy oz) |
| Tola | 11.6638 g | 0.3750 oz t | South Asian and Middle Eastern traditional retail standard |
| Kilogram (kg) | 1,000.0 g | 32.1507 oz t | Central bank reserve bars and wholesale industrial deliveries |
Practical Use Cases Supported by KivaroTools
1. Negotiating Scrap Jewelry Sales
Before taking unwanted broken jewelry, chains, or old dental gold to a local pawn broker, calculate its intrinsic melt floor. Knowing that your 14K chain has $450 of pure gold prevents accepting predatory 50% lowball offers.
2. Estate & Silverware Inventory
Liquidating inherited silver tableware and flatware? Use our Scrap Lot Builder to enter forks, spoons, and teapots by weight, aggregating their total fine silver grams and wholesale bullion cash value.
3. Bullion Stacking & Portfolio Tracking
Physical investors holding sovereign coins (Krugerrands, Maple Leafs, Eagles) can track total fine troy ounces and current market values with real-time foreign exchange conversion across 32 currencies.
4. Artisanal Casting & Bench Recycling
Metalsmiths and jewelry bench artisans recycling sprues, bench sweeps, and casting cutoffs can model refiner assay fees and determine net cash returns before sending scrap lots to commercial smelters.
Troubleshooting & Common Valuation Pitfalls
- Gold-Plated Items (HGE, GF, RGP, EPNS): Stamps like โ14K HGEโ (Heavy Gold Electroplate), โ1/10 14K GFโ (Gold Filled), or โEPNSโ (Electroplated Nickel Silver) indicate base metal coated in microscopic gold or silver. These items have virtually zero scrap melt value and will be rejected by refiners.
- Magnetic Testing Failure: Real gold and fine silver are non-magnetic. If a piece stamped โ18Kโ strongly attracts a neodymium magnet, it is likely gold-plated brass or steel.
- Overlooking Stone Weight: Large cubic zirconias, gemstones, or lead-filled hollow bangles add deceptive weight on a scale. Always request that buyers zero out non-metallic materials before calculating payments.
- Confusing Pennyweights with Grams: 1 pennyweight (dwt) is 1.5552 grams. If a seller enters 10 dwt as 10 grams, they under-report weight by over 35%. Always ensure scale and selector units align.
Frequently Asked Questions
- What is melt value, and how is it different from retail jewelry price?
- Melt value (or intrinsic bullion value) represents the raw commodity value of the pure precious metal contained inside an item at wholesale spot market prices, assuming the item was melted down and refined. Retail jewelry prices are significantly higher because they include manufacturer design, stone setting, brand premiums, craftsmanship labor, retailer markup, and sales taxes. When selling scrap jewelry to a buyer, melt value is the baseline ceiling they work downward from.
- What is the critical difference between a troy ounce and an ordinary kitchen scale ounce?
- A troy ounce (oz t) is the universal international standard for precious metals trading and weighs exactly 31.1034768 grams. An ordinary avoirdupois ounce (oz), standard on American kitchen and postal scales, weighs only 28.349523125 grams. One troy ounce is approximately 9.71% heavier than an ordinary ounce. If you weigh scrap jewelry on a household kitchen scale and assume the reading is troy ounces, your valuation will be inaccurate by nearly 9%. KivaroTools explicitly separates troy ounces from ordinary ounces to prevent this costly error.
- How much do refiners, bullion dealers, and pawn shops actually pay for scrap gold?
- No commercial buyer pays 100% of melt value because they must cover assay testing, chemical refining losses, capital holding costs, and business profit. High-volume precious metal refiners typically pay 93% to 96% of melt value. Local coin shops and reputable bullion dealers generally pay 85% to 90% for clean scrap jewelry. Pawn shops, jewelry kiosks, and mail-in cash-for-gold operations often pay 65% to 80% (and sometimes as low as 50%). Always obtain multiple quotes and know your itemโs exact melt value before negotiating.
- How do hallmark stamps (such as 585, 750, 916, and 925) translate to purity?
- Hallmark stamps indicate fineness in parts-per-thousand (millesimal fineness). 375 corresponds to 9K gold (37.5% pure); 417 corresponds to 10K gold (41.67% pure); 585 corresponds to 14K gold (58.33% pure); 750 corresponds to 18K gold (75.0% pure); 875 corresponds to 21K gold (87.5% pure); 916 corresponds to 22K gold (91.67% pure); and 999 or 999.9 indicates 24K pure bullion. For silver, 925 signifies Sterling Silver (92.5% pure), 900 indicates Coin Silver (90.0% pure), and 800 indicates European Continental Silver. For platinum, Pt950 indicates 95.0% pure platinum.
- How is gold rate per tola calculated from international spot prices?
- Wholesale spot contracts in London (LBMA) and New York (COMEX) trade in USD per Troy Ounce (31.1034768 grams). 1 Tola is an ancient Vedic and Gulf physical standard defined as exactly 180 grains, or 11.6638038 grams, which equals exactly 0.375 (3/8) of a Troy Ounce. To calculate the 24K price per tola, the international spot price per troy ounce is multiplied by 0.375 and then converted into local currency (such as PKR, INR, or AED) using prevailing foreign exchange reference rates.
- Can I use this calculator if the live market feed is down or closed for the weekend?
- Yes. KivaroTools provides a dedicated "Enter Custom Spot Override" toggle. When enabled, you can enter any custom spot benchmark price per troy ounce in your selected currency. The calculator will immediately recompute all gross weights, fine weights, melt values, and dealer payout tiers based on your manual figure.
- How do gemstones and diamonds affect scrap jewelry melt value?
- Melt value calculators determine the value of the precious metal only. Heavy gemstones, diamonds, cubic zirconia, enamel, and spring mechanisms in clasps add gross weight on a scale but contain zero gold. Professional buyers will subtract the estimated stone weight (known as tare weight) before computing their offer. If your jewelry contains certified, valuable natural diamonds or precious gems, consider having the stones appraised separately or unset before selling the metal for melt.
- Does KivaroTools store my scrap lot items or transmit my personal weights to a server?
- No. All mathematical valuation algorithms, unit conversions, multi-item scrap lot calculations, and dealer spread simulations execute 100% locally inside your web browser. Neither your weights, item names, lot manifests, nor estimated payouts are ever transmitted, tracked, or saved on KivaroTools servers.