Old Gold Exchange Calculator - Resale Value | 1Dollars

Free Old Gold Exchange Calculator

Estimate old-gold resale or exchange credit from gross weight, stones or non-gold weight, purity, recovery and buyer deductions. Optionally compare the credit with a new-jewellery final invoice total.

Old Gold Resale and Exchange Value Calculator

Enter a permitted current gold price, then separate eligible gold-alloy weight from stones and other materials. Buyer recovery and deductions remain transparent.

Current gold price

Current gold price

per gramper 10 gramsper tolaper troy ounceper kilogram

Purity basis of entered price Fine gold / spot basis (100%)24K / 999 quoted rate24K / 995 quoted rate23K / 958 quoted rate22K / 916 quoted rate21K / 875 quoted rate18K / 750 quoted rate14K / 585 quoted rateCustom quoted purity

Currency code INRUSDEURGBPAEDSARCADAUDNZDSGDCHFJPYPKRBDTZAR

Old gold details

Gross item weight

gramskilogramstroy ouncestolapennyweightgrains

Stones and other non-gold weight

gramskilogramstroy ouncestolapennyweightgrains

Include stones, beads, enamel, springs, clasps or other excluded material when their weight is known.

Old gold purity 24K / 99924K / 99523K / 95822K / 91621K / 87520K / 83318K / 75014K / 58510K / 4179K / 375Custom purity

Exchange or resale terms

Credited gold recovery (%) Applied to calculated fine-gold weight before the payout percentage.

Buyer payout percentage (%) For example, 98% represents a 2% buyer percentage deduction.

Flat testing, melting or handling deduction

New jewellery final invoice total (optional) Enter the seller's final total after all additions, discounts and applicable tax.

Estimate only. Actual exchange credit depends on verified net weight, assay purity, buyer terms and invoice treatment. This calculator does not calculate GST, making charges or legal tax value.

Reviewed on 15 July 2026 using BIS hallmarking information, FTC jewellery-description guidance, NIST mass conversions and LBMA benchmark documentation.

An old-gold exchange quote is not simply gross jewellery weight multiplied by today's rate. Stones and non-gold parts must be excluded, purity must be applied, and the buyer may use recovery, payout and fixed deductions before issuing cash or exchange credit.

Quick answer: enter a current gold rate and its purity basis, then add gross item weight, known non-gold weight, old-gold purity and the buyer's exact recovery and deduction terms. The result separates intrinsic value from exchange credit.

How the Old Gold Exchange Calculator Works

The calculator converts both weight inputs to grams and removes stones or other excluded material. It applies purity to eligible alloy weight, applies the buyer's recovery percentage and then applies payout percentage plus the flat deduction.

Eligible alloy weight = gross item weight − stones and other non-gold weight

Fine gold = eligible alloy weight × purity

Recoverable fine gold = fine gold × credited recovery %

Exchange credit = recovered metal value × payout % − flat deduction

The final credit cannot fall below zero. Each intermediate weight and deduction remains visible so competing exchange quotes can be compared on the same assumptions.

Gross Weight, Net Eligible Weight and Stones

Gross item weightThe complete jewellery weight including gold alloy, stones, beads and other attached materials.

Non-gold weightKnown stone, enamel, spring, bead, thread or other material the buyer will not value as gold.

Eligible alloy weightGross weight minus excluded non-gold weight. Purity is applied to this amount.

Fine-gold weightThe gold contained in the eligible alloy before any recovery allowance.

If stones cannot be removed or weighed separately, request the buyer's documented net-weight method. Guessing a stone weight can change the result substantially.

Old Gold Purity and Hallmarks

Select the verified fineness or enter a custom percentage. A 916 mark means 91.6% for this calculator; 750 means 75%; 585 means 58.5%. A hallmark is useful evidence, but wear, solder, mixed parts, repairs or an incorrect mark can cause an assay result to differ.

BIS maintains hallmarking information and consumer resources for gold jewellery in India. For an actual transaction, ask how the buyer tests purity, whether the test is destructive, and whether the result is documented before melting.

Mixed-purity lot: calculate 22K, 18K and other purity groups separately. Applying one average karat without an assay can overstate or understate exchange credit.

Recovery, Payout and Flat Deduction

Term	Calculator treatment	Question for the buyer
Credited recovery	Reduces calculated fine-gold weight	What percentage of tested fine gold receives credit?
Payout percentage	Applies to value after recovery	What percentage of recovered metal value is paid?
Flat deduction	Subtracted once after percentage deduction	Does it include testing, melting and handling?
New invoice total	Exchange credit is subtracted arithmetically	Is this the final total after charges, discount and tax?

Do not combine an unitemized “melting loss” with another recovery reduction unless both genuinely apply. Ask for every deduction in writing.

Worked Old Gold Exchange Example

Assume fine gold is CU 100 per gram. Old jewellery weighs 20 grams including 2 grams of stones, tests at 916 fineness, receives 98% recovery, has a 97% payout rate and a CU 50 flat deduction:

• Eligible alloy weight = 20 g − 2 g = 18 g
• Fine gold = 18 g × 91.6% = 16.488 g
• Intrinsic fine-gold value = CU 1,648.80
• Value after 98% recovery = CU 1,615.82
• 3% buyer deduction = CU 48.47
• Exchange credit after CU 50 flat deduction = CU 1,517.35
• Against a CU 3,000 final new-jewellery invoice, estimated balance = CU 1,482.65

CU means any currency unit. These rates and deductions are mathematical examples, not typical or current market terms.

Exchange Credit vs Cash Resale

A seller may quote different terms for cash buyback and exchange toward a new purchase. A higher headline exchange rate can be offset by higher new-item making charges, wastage, product premium or other invoice additions.

Compare the complete transaction: old-gold credit, final new-jewellery invoice, payment balance and any restrictions. This calculator does not assume that exchange is automatically better than cash resale.

New Jewellery Balance Without Tax Guesswork

The optional purchase field expects the final new-jewellery invoice total after metal value, making charges, wastage, stones, discounts and applicable tax. The calculator then performs only this subtraction:

Balance payable = final new-jewellery invoice − usable exchange credit

Taxable-value and exchange-credit treatment can depend on jurisdiction and invoice facts. Calculate or obtain the compliant new invoice first; do not treat this balance estimate as a tax calculation.

Gold-Plated, Filled and Coated Items

A plated, filled, rolled-gold or coated item is not solid gold at the surface fineness. Gross weight multiplied by a karat mark can greatly overstate value. Use this calculator only when actual gold-bearing weight and gold percentage are known from reliable specifications or testing.

The FTC Jewellery Guides address descriptions such as gold plate, gold-filled and related products. Product wording and physical construction matter when deciding whether a solid-gold formula applies.

Testing and Melting Questions to Ask

• Will purity be tested before stones or non-gold parts are removed?
• Is the test non-destructive, or does it require cutting or melting?
• Which weight and fineness will appear on the written valuation?
• What recovery percentage, payout rate and fixed fees apply?
• Can the item be returned if the offer is declined?
• Does exchange credit expire or apply only to selected products?

Live Gold Rate and Purity Basis

This page does not reproduce a live or delayed benchmark. Enter a current rate from a source you are permitted to use and confirm its currency, timestamp, unit and purity basis. When the buyer quotes a 22K rate, select 22K / 916 as the entered-price basis so purity is not applied twice.

Common Old Gold Exchange Mistakes

• Valuing stones and non-gold parts as gold.
• Using a hallmark as a guaranteed assay result.
• Combining mixed-karat items under one purity.
• Applying recovery loss and payout deduction as though they were the same charge.
• Entering a tax-exclusive new-item price instead of the requested final invoice total.
• Comparing exchange credit without comparing the complete new-jewellery invoice.
• Using a solid-gold formula for plated or filled material.

Related Gold Calculators

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Frequently Asked Questions

How is old gold exchange value calculated?

Subtract stones and other non-gold weight from gross weight, apply verified purity, value the fine gold, apply credited recovery and payout percentage, and subtract the flat deduction.

Why is old gold exchange value lower than today's gold rate?

The quoted market rate may represent fine gold, while old jewellery has lower purity and can include stones or non-gold parts. Recovery, buyer spread and fixed charges may further reduce credit.

Should stones be removed from old jewellery weight?

Non-gold material should not be valued as gold. Enter its known weight separately or ask the buyer for a documented net eligible weight.

What does gold recovery percentage mean?

It is the percentage of calculated fine-gold content credited after the buyer's melting, assay or recovery allowance. It is applied before the payout percentage in this tool.

What is the buyer payout percentage?

It is the share of recovered metal value offered as cash or exchange credit before the flat deduction. For example, 98% represents a 2% percentage deduction.

Can I compare old gold credit with new jewellery cost?

Yes. Enter the final new-jewellery invoice total after all charges, discounts and applicable tax. The calculator shows balance payable or unused excess credit.

Does the calculator calculate GST on gold exchange?

No. It intentionally avoids assuming legal tax treatment. Enter the compliant final new-jewellery invoice total obtained separately.

Can I calculate several old-gold items together?

Combine items only when they share the same verified purity and buyer terms. Calculate different karats or materially different items separately, then add their credits.

Can I use this calculator for gold-plated jewellery?

Only if actual gold-bearing weight and gold percentage are known. A surface karat description cannot be applied to the entire gross weight of a plated or filled item.

Does this page show a live gold exchange rate?

No. Enter a current permitted price and verify its currency, unit, timestamp and purity basis independently.

Reference Sources

• Bureau of Indian Standards – hallmarking FAQs and consumer information
• U.S. Federal Trade Commission – Jewellery Guides for gold, plated and filled product descriptions
• NIST Handbook 44 Appendix C – metric and troy mass conversions
• LBMA – precious-metal benchmark information and licensing notice

Disclaimer: This calculator and guide provide general educational estimates, not a live gold quote, assay, appraisal, guaranteed buyer offer, compliant tax invoice, tax advice, legal opinion or investment recommendation. Verify weight, purity, stones, recovery, deductions, exchange restrictions and the complete new-jewellery invoice independently before accepting a transaction.