4 Carat Lab Grown Diamond
Are you looking to buy a lab-grown loose diamond or engagement ring? Select from the thousands of certified diamonds in our collection. Lab-grown diamonds are chemically, physically, and optically identical to mined diamonds — available at 50–70% less than the cost of a naturally mined stone.
4 Carat Lab-Grown Diamonds
Carat Weight
A 4-carat diamond is a stunning choice, perfect for statement engagement rings and fine jewelry.
Lab-Grown Diamonds
Lab-grown diamonds are real diamonds created in a laboratory rather than deep within the Earth's crust. They are physically, chemically, and visually identical to earth-grown diamonds and indistinguishable, even by a trained gemologist.
The only difference between lab-grown and earth-grown diamonds is how they are formed. Earth-grown diamonds develop under extreme pressure and temperature deep beneath the Earth's surface, while lab-grown diamonds are created under high pressure and temperature (HPHT) in a controlled lab environment.
Lab-grown diamonds are typically 30 to 50 percent more affordable than earth-grown diamonds, making them a popular choice for engagement rings. This allows you to get a larger diamond within your budget.
All Reve Diamonds lab-grown diamonds are certified. Most of our lab-grown diamonds are certified by IGI or GIA, the most respected independent diamond grading laboratories.
If you need assistance selecting your 4-carat lab-grown diamond, contact us today:
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Frequently Asked Questions
How much does a 4-carat lab-grown diamond cost?
A 4-carat lab-grown diamond can cost between $7,500 and $44,000, depending on the 4 Cs (Carat, Cut, Color, and Clarity).
How much does a 4-carat diamond weight?
A 2-carat diamond weight 0.8 grams or 800 milligrams.
How big is a 4-carat diamond?
4-carat diamonds vary in dimensions since carat is a measure of weight rather than size. Below is a range of dimensions for a 4-carat diamond:
| Measurement | Low | High | Median |
|---|---|---|---|
| Length (mm) | 8.5 | 11.6 | 10.2 |
| Width (mm) | 8.2 | 11.2 | 10.0 |
| Depth (mm) | 5.5 | 7.5 | 6.5 |
| Length-to-Width Ratio | 1.0 | 1.5 | 1.2 |
