How to Identify a Real Diamond: Expert Tips You Can Trust | Happy Gems
Published on November 01, 2025
In today’s jewellery market, imitation stones and lab-grown versions have made it harder for buyers to distinguish between real and synthetic diamonds.
But a true diamond — one shaped by nature over billions of years — has a sparkle and soul that no replica can ever match.
1️⃣ The Fog Test — Nature Never Blurs
Breathe gently on your diamond.
If it’s real, the fog will disappear instantly because diamonds disperse heat quickly.
If it stays foggy for a few seconds, it’s likely a fake.
Caption: Real brilliance never fades — not even under pressure.
2️⃣ Check the Sparkle — Sharp, Not Rainbow
A genuine diamond reflects white light (brilliance) and colored light (fire) beautifully — but never too rainbow-like.
Fake stones often have a glassy or overly colorful reflection.
3️⃣ The Water Test — Density Never Lies
Drop the loose stone into a glass of water.
A real diamond will sink straight to the bottom due to its high density.
Fakes like cubic zirconia will often float or sink slowly.
4️⃣ Loupe Inspection — Look for Perfection in Imperfection
Under magnification, real diamonds often show tiny inclusions or natural marks — a fingerprint of authenticity.
Lab-made or fake ones are usually too flawless.
