Gold jewellery is timeless—but with fake and low-quality pieces flooding the market, how can you be sure yours is real? Whether you’re buying a 22K necklace, a 18K ring, or a simple bracelet, knowing how to identify genuine gold is essential.
At Gem Castle, we ensure every piece is BIS-hallmarked and purity certified. In this guide, we’ll show you 7 proven ways to identify real gold jewellery at home and through professional checks.
Why Authentic Gold Jewellery Matters
💎 Value & Investment – Genuine gold retains long-term value.
🌟 Durability – Pure gold doesn’t tarnish or fade.
✅ Trust & Certification – Ensures what you wear is authentic.
1. Look for the BIS Hallmark (Most Reliable in India)
Every BIS-hallmarked piece has these 4 identifiers:
- BIS logo
- Purity in Karat (22K 916, 18K 750, etc.)
- Jeweller’s identification mark
- Year of hallmarking

LINK : https://www.bis.gov.in/?lang=en
👉 At Gem Castle, all our Gold Jewellery Collection is BIS certified.
“BIS hallmark on 22K gold jewellery”

2. Try the Magnet Test (At-Home Check)
- Real gold is not magnetic.
- If jewellery sticks to a magnet, it likely contains base metals.
⚠ Use this as a quick check, but not the final proof.

3. Do the Water Test (Density Check)
- Drop jewellery into a bowl of water.
- Real gold sinks immediately (dense & heavy).
- Fake metals may float or sink slowly.

4. The Nitric Acid Test (Professional Method)
- Experts apply nitric acid to check reactions.
- Real gold remains unaffected.
- Fake metals turn greenish or milky.

💡 Done by professionals to avoid damage.
5. Watch for Discoloration or Tarnish
- Real gold doesn’t fade or rust.
- Fake jewellery often leaves green or black marks on skin.
6. Weight & Sound Check
- Gold is naturally dense & heavy.
- Fake jewellery feels lighter.
- Dropped gently, real gold makes a deep, soft sound.
7. Verify with a Trusted Jeweller
- The safest method is always professional testing.
- At Gem Castle, we guarantee:
- BIS Hallmarked Jewellery
- Purity Certificates
- Lifetime authenticity assurance
👉 Explore our Latest Gold Rings.

Conclusion
Gold jewellery is more than beauty—it’s an investment. Knowing how to identify real gold keeps your purchase safe and valuable.
✨ At Gem Castle, every piece comes with BIS hallmarking and purity guarantee, so you can shop confidently.