Archive · 6 Sep 2026
Natural Diamonds Face New Questions As Lab-Grown Stones Rise
Lab-grown diamonds are real diamonds made in factories instead of deep inside the Earth.
They can look almost exactly like natural diamonds and usually cost less.
This makes many shoppers wonder why they should pay more for a mined stone.
Natural diamonds are not always good investments because their prices can fall and resale is not guaranteed.
However, very rare natural diamonds may be valuable because they are difficult to find and can have special histories.
Younger buyers may prefer buying several lab-grown jewellery pieces instead of one very expensive ring.
The diamond market may split between people who want sparkle and people who want rarity or provenance.
Buyers now have to decide whether they care more about appearance and price or geological history and scarcity.
Lab-grown diamonds are increasingly mainstream in fashion, bridal and luxury jewellery.
They have essentially the same chemical, crystal and physical properties as natural diamonds.
Natural diamonds face stronger price competition, especially among ordinary and mid-market stones.
Experts say diamonds should not be bought primarily as financial investments.
Rare natural diamonds may retain appeal because of their provenance, history and collectability.
- Who
- Jewellery shoppers, natural-diamond miners, lab-grown diamond producers and jewellery experts including Neha Roongta and Sanjana Tripuramallu.
- What
- The growing popularity of lab-grown diamonds is challenging the traditional value and investment case for natural diamonds.
- When
- The shift is occurring as lab-grown diamonds enter mainstream jewellery and natural-diamond prices decline.
- Where
- The trend is discussed in jewellery markets and includes Cosmos Diamonds, a Bengaluru-based company.
- Why
- Lab-grown diamonds offer similar physical and visual qualities at a lower price, while consumers are reassessing the importance of rarity and geological origin.
Lab-Grown Diamond Case
Natural Diamond Case
Value and appearance
Lab-Grown Diamond Case
Lab-grown diamonds provide comparable sparkle, physical properties and appearance at a considerably lower price.
Natural Diamond Case
Buyers may value natural diamonds for their geological origin, rarity and the story attached to where they came from.
Investment potential
Lab-Grown Diamond Case
Lab-grown diamonds can offer more stone for the money, but they generally lack the resale proposition traditionally associated with rare natural stones.
Natural Diamond Case
Natural diamonds are not straightforward investments either, but exceptional stones may have greater appeal because of rarity, provenance and collectability.
Future market position
Lab-Grown Diamond Case
Lab-grown diamonds are gaining ground in fashion jewellery, bridal collections and luxury retail, especially among younger shoppers.
Natural Diamond Case
Natural diamonds are unlikely to become worthless and may increasingly be distinguished by size, quality, certification, provenance or history.
- Lab-grown composition
- The Gemological Institute of America says lab-grown diamonds have essentially the same chemical composition, crystal structure and physical properties as natural diamonds.
- Production time
- Lab-grown diamonds can be produced in weeks using technologies such as HPHT and CVD.
- Natural-diamond formation
- Natural diamonds form deep inside the Earth over millions or billions of years.
- Visual distinction
- The difference between natural and lab-grown diamonds can be virtually impossible to see without specialist equipment.
- Investment warning
- Neha Roongta says neither natural nor lab-grown diamonds should be bought purely as financial instruments.
- Market outlook
- The article suggests ordinary natural diamonds may become more price-sensitive while genuinely rare stones become more collectible.