Do Lab-Grown Diamonds Last Forever? What Happens After 10 Years.

There is a question that comes up in almost every conversation about lab-grown diamonds, whispered in DMs, typed into search bars at midnight before a big purchase decision: "But will it last? Will it still look the same in 10 years?" It is a completely valid question. The answer, backed by science and not just marketing: lab-grown diamonds are built to last a lifetime — and beyond.

What Are Lab-Grown Diamonds, Really?

A lab-grown diamond is not a diamond simulant. It is not cubic zirconia. It is not moissanite. A lab-grown diamond is a real diamond. Chemically, physically, and optically — it is identical to a mined diamond. Both are composed of pure carbon atoms arranged in a cubic crystal lattice structure, which gives diamonds their legendary hardness and light-refracting brilliance. The only difference is origin.

"Same carbon. Same crystal structure. Same diamond."

The Science of Durability: Where Do Lab-Grown Diamonds Stand?

Hardness: The Mohs Scale

What Actually Happens to a Lab-Grown Diamond After 10 Years?

• The crystal structure remains completely unchanged — no degradation, no softening, no internal shifts.
• Surface brilliance is preserved, provided the diamond receives routine cleaning (warm water, mild soap, soft brush — once a month).
• No fading. No colour change. No cloudiness from within the stone itself.
• The diamond's refractive index — the property that creates its fire and sparkle — is permanent and will not diminish over time.

The Myth of "Clouding"

Can a lab-grown diamond cloud over? No — not in the way many buyers fear. A real diamond cannot become internally cloudy over time. What buyers sometimes notice is surface build-up: a thin film of oil, soap residue, lotion, or skin cells that dulls the appearance temporarily. A simple cleaning restores full brilliance instantly. This is not the diamond changing — it is just the diamond being worn.

Lab-Grown vs Mined Diamonds: A Durability Comparison

How to Keep Your Lab-Grown Diamond Looking Flawless for Decades

• Clean monthly with warm water, a drop of mild dish soap, and a soft toothbrush. Rinse and pat dry.
• Remove jewellery before applying lotions, sunscreen, perfume, or hairspray.
• Store pieces individually in soft pouches or lined boxes to prevent scratching.
• Visit a professional jeweller once a year for a setting inspection and professional clean.
• Avoid wearing your ring during heavy manual work, gym sessions, or activities involving significant impact.

The Verdict: Built to Last, Designed to Shine

Lab-grown diamonds do not just last — they endure. Through anniversaries, monsoons, decades of daily wear, and the inevitable adventures of a full life, the diamond you choose today will remain exactly as it is: brilliant, hard, and beautiful.