Hallmark Stamp Codes & Real Price Calculation — Avoid Overpaying for Gold

Gold Hallmark Codes & Formula to Calculate Exact Price (18K/21K/22K/23K/24K)

One-Line Formula

Exact Price of jewellery = (24K gold live price ÷ 999) × Hallmark Purity Code
Then add making charges (and wastage if any) + 3% GST.

Gold Purity	Hallmark Code	Base Rate (for ₹1,00,000/10g)	Pure Gold %
18 Carat	750	₹75,075	~75.0%
21 Carat	875	₹87,588	~87.5%
22 Carat	916	₹91,592	~91.6%
23 Carat	958	₹95,696	~95.8%
24 Carat	999	₹1,00,000	~99.9%

Quick Example (22K – 916)

Assume 24K live rate = ₹1,00,000 (for 10 grams).

22K base rate = (₹1,00,000 ÷ 999) × 916 = ₹91,592 (per 10 grams).

Add making charges (say 5% = ₹4,579.60) ⇒ ₹96,171.60.

Add 3% GST ⇒ ₹96,171.60 × 1.03 = ₹99,056.75 (final bill approx. for 10 grams).

What to check at the shop

• Hallmark stamp: BIS logo + purity code (916, 750 etc.) must be visible.
• Live rate clarity: Always confirm the 24K (999) rate being used.
• Making charges: Negotiate; machine-made is lower, handmade higher.
• Wastage: Prefer zero wastage or fixed per gram charges.
• Resale policy: Know buyback deductions before purchase.
• Stone jewellery: Only gold part is billed with this formula, stones are separate.

30-Second Verification

1. Check 24K rate (999) shown.
2. Multiply by (purity ÷ 999).
3. Add making/wastage charges.
4. Apply 3% GST for final bill.

Using the hallmark code and simple division, you can calculate the true base rate for any jewellery piece and ensure you are charged transparently without hidden surprises.

SEBI Disclaimer: The information provided in this post is for informational purposes only and should not be construed as investment advice. Readers must perform their own due diligence and consult a registered investment advisor before making any investment decisions. The views expressed are general in nature and may not suit individual investment objectives or financial situations.

Written by Indian-Share-Tips.com, which is a SEBI Registered Advisory Services