How to Calculate Gold Jewellery Price: Purity, Making Charges & GST Explained

Walk into any jewellery shop in India and the rate board tells you only part of the story. The price you finally pay depends on the purity of the gold, its real weight, the making charges, any wastage, stones, and tax. Two shops showing the same "today's rate" can still give you very different bills.

This guide shows you how to calculate the price of gold jewellery yourself, step by step, so you can check a quote before you pay. All the rupee figures below are examples only — always use the live rate at your jeweller and check the latest official GST rules.

The basic formula for gold jewellery price

Almost every jewellery bill in India follows the same structure:

Final price = Gold value + Making charges (+ wastage, if any) + Stone charges + GST

Where:

• Gold value = net gold weight (grams) × gold rate per gram for that purity
• Making charges = the jeweller's fee for crafting the piece (per gram, a percentage, or a flat amount)
• Stone charges = the separate price of diamonds, gems or kundan work, if any
• GST = tax charged on the bill as per current rules

If you want to skip the arithmetic, the free Gold Price Calculator lets you enter the weight, purity, rate and making charges and shows the estimate instantly. But it helps to understand each part, because that is where the differences between shops hide.

Step 1: Know the purity — 24K, 22K and 18K

Gold purity is measured in karats (K). Pure gold is 24 parts out of 24.

| Karat | Purity | Hallmark grade | Typical use | |---|---|---|---| | 24K | 99.9% | 999 | Coins, bars | | 22K | 91.6% | 916 | Most Indian jewellery | | 18K | 75% | 750 | Diamond and stone-set jewellery | | 14K | 58.5% | 585 | Lightweight daily-wear pieces |

Most jewellers display both a 24K and a 22K rate. If only the 24K rate is shown, you can estimate the rate for lower purities:

• 22K rate ≈ 24K rate × 0.916
• 18K rate ≈ 24K rate × 0.75

Example: if the 24K rate is ₹7,600 per gram, the 22K rate is about ₹7,600 × 0.916 = ₹6,961.60 per gram, and the 18K rate is about ₹7,600 × 0.75 = ₹5,700 per gram.

Common mistake: if the jeweller already quotes a 22K rate, do not multiply it by 0.916 again. The purity is already built into that rate.

Before you buy, look for the BIS hallmark on the piece: the purity grade (such as 916) and a unique HUID code. You can check the current hallmarking rules on the official BIS website.

Step 2: Use the net weight, not the gross weight

Jewellery with stones, beads, lac or kundan has two weights:

• Gross weight – the whole piece, including stones
• Net weight – only the gold

You should pay the gold rate only on the net weight. The stones are priced separately.

Example: a necklace weighs 25 g gross and contains 2.5 g of stones. Net gold weight = 22.5 g.

• Correct: 22.5 g × ₹7,000 = ₹1,57,500
• Wrong: 25 g × ₹7,000 = ₹1,75,000

That is a ₹17,500 difference on one piece. Always ask for the gross weight, stone weight and net weight to be written separately on the bill. If the shop uses tola or ounces, convert to grams with a Unit Converter so you compare like with like.

Step 3: Understand making charges

Making charges are the biggest variable between shops. They are charged in one of three ways:

1. Percentage of gold value (most common). For example, 12% of the gold value.

2. Per gram. For example, ₹650 per gram.

3. Flat per piece. Common for very light items such as small earrings or nose pins.

Let's price the same 10 g, 22K chain both ways, with a 22K rate of ₹7,000 per gram:

• Gold value: 10 × ₹7,000 = ₹70,000
• At 12% making: ₹70,000 × 12% = ₹8,400
• At ₹650/g making: 10 × ₹650 = ₹6,500

Machine-made chains and plain bangles usually carry lower making charges than intricate handmade or antique designs. Making charges are often negotiable, and festival offers commonly give a discount on making charges rather than on the gold rate. A Discount Calculator helps you see what "25% off making charges" really saves: on ₹8,400, that is ₹2,100, bringing making charges down to ₹6,300.

Step 4: Watch for wastage (value addition)

Some jewellers, especially in South India, add wastage or VA (value addition) instead of, or on top of, making charges. It is usually shown as a percentage of the weight — the idea is that some gold is lost while crafting the piece.

Example: 8% wastage on a 10 g piece adds 0.8 g of gold to the bill. At ₹7,000 per gram, that is 0.8 × ₹7,000 = ₹5,600.

Ask clearly whether the quote includes wastage, making charges or both. A quote of "only 6% making" can end up more expensive than "12% making" if a separate wastage charge is added later.

Step 5: Add GST and see the full bill

GST is charged on jewellery purchases in India. Rates and the way they apply to gold and to making charges can change, so check the latest rate on the official GST portal or with your jeweller, and make sure it is shown separately on the bill.

Here is a complete worked example for a 10 g, 22K chain, using a 3% GST rate purely as an illustration:

| Item | Calculation | Amount | |---|---|---| | Gold value | 10 g × ₹7,000 | ₹70,000 | | Making charges | 12% of ₹70,000 | ₹8,400 | | Subtotal | | ₹78,400 | | GST (example 3%) | 3% of ₹78,400 | ₹2,352 | | Final price | | ₹80,752 |

You can check the tax line on any bill with the GST/VAT Calculator: enter the taxable amount and the rate printed on the bill and see if the figures match.

Step 6: Calculate the value of old gold for exchange

Many families exchange old jewellery when buying new pieces. The value depends on the tested purity, not the purity you remember.

1. The jeweller weighs the old piece and removes the weight of stones or dirt.
2. The purity is tested (often with an XRF machine or a touchstone).
3. Value = net weight × 24K rate × tested purity, minus any exchange deduction the shop applies.

Example: 15 g of old jewellery tests at 20K (about 83.3% purity). With a 24K rate of ₹7,600:

15 × ₹7,600 × 0.833 = ₹94,962 before any deduction.

Ask for the test result in writing, and ask what deduction (if any) the shop applies on exchange versus resale for cash — these are often different.

Quick checklist before you pay

• Note the 22K and 24K rate displayed that day, and the time.
• Check the BIS hallmark and HUID on the piece.
• Get gross weight, stone weight and net weight on the bill.
• Confirm how making charges are calculated, and whether wastage is extra.
• Check that stones are priced separately and not at the gold rate.
• Make sure GST is shown separately and matches the current rate.
• Recalculate the total yourself before paying.

Conclusion

Calculating the price of gold jewellery is not complicated once you split the bill into its parts: net weight × the right purity rate, then making charges, wastage, stones and GST. Doing this five-minute check lets you compare two shops fairly, negotiate making charges with confidence, and avoid paying the gold rate on stones.

Next time you get a quote, open the Gold Price Calculator on your phone, enter the jeweller's numbers and see if the total matches. It's free and works in your browser with no signup.