How much does a lab-grown diamond cost compared with a natural one?

A lab-grown diamond costs between 30% and 60% less than its natural equivalent. For example, a 1-carat lab-grown diamond costs between 500-800€, compared with 4.500-6.000€ for a natural one of the same size and quality.

Which offers the best value for money: a natural or a lab-grown diamond?

A lab-grown diamond to maximize size and brilliance on a tight budget. A natural VS1-VS2 / G-H color diamond if you value tradition and a long-term balance between cost and quality.

Natural vs Lab-Grown Diamonds 2026: The Complete Guide to Differences, Prices and Ethics

Q: Does a lab-grown diamond lose value over time?

Its resale value is low compared with natural diamonds, as prices in the lab-grown diamond market keep falling. Most clients choose them for their emotional and aesthetic value, not as a financial investment.

September 18, 2025

Which is better for an engagement ring: a natural diamond or a lab-grown diamond? This is one of the questions we hear most often at BRAVORA. Both are real diamonds, with the same chemical composition and the same brilliance, but their different origins bring differences in price, perceived value and ethics. In this definitive guide, we help you make an informed decision.

What is a natural diamond?

A natural diamond forms deep within the Earth over millions of years, under extreme conditions of pressure and temperature. Its rarity has made it a symbol of exclusivity and tradition. However, diamond mining can be linked to environmental and social impacts if a responsible origin is not guaranteed.

What is a lab-grown diamond?

A lab-grown diamond is created under controlled conditions, replicating the same process of pressure and temperature through methods such as HPHT (High Pressure High Temperature) or CVD (Chemical Vapor Deposition). Its chemical composition and optical properties are identical to those of a natural diamond: they are real diamonds, recognized and certified by international gemological laboratories such as GIA or IGI.

Key differences between natural and lab-grown diamonds

1. Average price per carat weight

The price difference is the main reason many clients consider a lab-grown diamond. On average, a lab-grown diamond costs between 30% and 60% less than its natural equivalent of the same size and quality.

Carat weight	Lab-grown diamond (approx.)	Natural diamond (approx.)
1,00 ct	500 – 800 €	4.500 – 6.000 €
1,50 ct	800 – 1.000 €	8.000 – 12.000 €
2,00 ct	1.000 – 1.500 €	15.000 – 20.000 €

Approximate prices in 2025 based on IGI/GIA certification, VS1-VS2 clarity, G-H color.

2. Value and resale

A natural diamond holds a more stable resale value, while a lab-grown diamond tends to depreciate faster due to growing supply and steadily falling prices. If your priority is investment value, a natural diamond remains the more solid choice.

3. Ethics and sustainability

At BRAVORA, we offer natural diamonds exclusively to order, and every one of them comes with conflict-free traceability through the Kimberley Process and certified ethical mining suppliers. If you choose a natural diamond, we make sure it does not come from practices associated with “blood diamonds”.

Lab-grown diamonds, on the other hand, eliminate the risks associated with mining and represent a more eco-conscious option with a transparent origin.

4. Brilliance, hardness and durability

There is no visible difference in brilliance or strength: both are diamonds with a hardness of 10 on the Mohs scale. Their durability is identical, and they are made to last a lifetime.

BRAVORA tip: how to get the best value for money

With natural diamonds, a key trick to keep your budget in check is to choose VS1/VS2 clarity and G-H color. We always recommend an excellent cut grade, as it is a crucial characteristic for the beauty and durability of the gem. These combinations offer the best balance between purity, whiteness and price, without compromising the beauty of the diamond. The visual difference compared with higher grades (IF, D) is almost imperceptible to the naked eye, but the price difference can be enormous.

Which should you choose for your engagement ring?

The decision depends on your priorities:

Choose a lab-grown diamond if you want a larger size and more brilliance for your budget, with guaranteed ethics and transparency.
Choose a natural diamond if you value tradition, social prestige and better long-term resale performance.

Both options are valid: what matters is that your ring represents your story and your values as a couple.

FAQs

Can you tell the difference between a natural diamond and a lab-grown one?

No, they are chemically identical. Only a gemological laboratory with advanced instruments can tell them apart.

Does a lab-grown diamond lose value over time?

Yes, it tends to depreciate faster than a natural diamond due to falling market prices.

Are BRAVORA's natural diamonds ethical?

Yes, we only work to order with certified suppliers who comply with the Kimberley Process and responsible mining standards.

Which offers the best value for money?

A lab-grown diamond to maximize size and brilliance on a tight budget, or a natural VS1-VS2 / G color diamond if you value tradition and a balance between cost and quality.

Conclusion: choose with confidence

The ideal diamond is not the most expensive or the largest, but the one that best represents your values as a couple and fits a budget that does not mean an excessive financial strain. At BRAVORA, we guide you so you can make a clear and confident decision, with access to both lab-grown diamonds and ethical natural diamonds, always with international certification.

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