Lab-Grown vs Natural Diamonds: Why Choose Lab-Grown?

Compare lab-grown and natural diamonds, from origin and appearance to price and certification. Find the choice that suits your jewellery and priorities.

When you choose a diamond, its story matters alongside its appearance. Lab-grown diamonds appeal to people who want diamond jewellery with a laboratory-grown origin and room to explore their preferred size and design. Natural diamonds appeal to those who particularly value geological origin. Understanding the difference makes the decision more personal.

Lab-grown and natural diamonds compared

Both are diamonds. GIA explains that laboratory-grown diamonds have essentially the same chemical, physical and optical properties as natural diamonds. Their origin is different: one grows through a controlled technological process, while the other forms in the Earth. Read GIA’s explanation of diamond origins.

What changes, and what to compare
ConsiderationLab-grown diamondNatural diamond
OriginGrown in a laboratory, commonly using HPHT or CVD technologyFormed through geological processes within the Earth
MaterialDiamond, with essentially the same key properties as natural diamondDiamond of natural origin
IdentificationOrigin can be established through specialist laboratory testingSpecialist testing can confirm natural origin
Shopping decisionCompare the actual stone, setting, report and current priceCompare the actual stone, setting, report and current price

Why choose a lab-grown diamond?

More possibilities within your budget

Lab-grown diamonds generally cost less than natural diamonds of comparable quality. That can give you more flexibility when choosing a stone or setting. Prices vary: compare current quotes for the complete piece rather than relying on a fixed percentage saving. GIA discusses the distinction between lab-grown diamonds and diamond simulants, including their typically lower price point.

Start with the total amount you want to spend. Then compare what matters most to you: the size on the hand, a particular diamond shape, the metal or the setting detail. A bigger stone is one option; a more understated stone in your favourite design can be just as personal.

A diamond with a laboratory-grown origin

If you prefer a laboratory-grown stone, clear disclosure lets you choose that origin deliberately. Ask which diamond a report covers and how the supplier documents its sourcing. You can read about Oscar & Co’s approach on our About Us and Our Promise pages, or ask about the particular piece you like.

A choice for an engagement ring or everyday jewellery

The meaning comes from the piece you choose and the occasion it marks. Explore lab-grown diamond engagement rings for a proposal, or use our diamond stud earrings guide to compare a pair for everyday wear.

When might you prefer a natural diamond?

If geological origin is an essential part of what you want to celebrate, a natural diamond may suit your preferences better. Be clear about that priority before comparing pieces. Oscar & Co’s collection focuses on lab-grown diamonds; the jewellery featured below is lab-grown.

Explore Oscar & Co lab-grown diamond jewellery

Questions about lab-grown diamonds

Are lab-grown diamonds the same as moissanite?

No. Moissanite is a different material used as a diamond simulant. A lab-grown diamond is diamond. GIA’s guide to simulants and lab-grown diamonds explains the distinction.

Can you tell the origin by looking at a diamond?

Appearance alone is not a reliable way to establish origin. GIA describes specialist testing used to distinguish natural and laboratory-grown diamonds. Check the product description and report rather than relying on a visual guess.

What should I check before ordering?

Confirm the stone’s stated origin, measurements and quality details; the selected metal; and which stones or jewellery the certification covers. For a proposal, read our engagement ring buying guide and check sizing and timing.