Question 1

How much is a 4 carat lab grown diamond?

Accepted Answer

The price depends most on the diamond's color, clarity, cut and certificate, and on the shape you pick. As a guide from our own stock, a 4 carat costs roughly 3 times a 1 carat of the same grade. Prices move daily, so check today's live prices below.

See today's prices: 4 carat lab grown diamonds

Question 2

Is a lab grown 4 carat cheaper than a mined one?

Accepted Answer

Yes, and the gap is biggest at this size. A lab grown 4 carat costs a fraction of a mined 4 carat of the same grade, which is where lab grown gives the most value. It is a diamond, same look and hardness as mined, and IGI or GIA certified.

Compare against today's live prices: 4 carat lab grown diamonds

Question 3

How big is a 4 carat lab grown diamond?

Accepted Answer

A 4 carat lab grown diamond is a true statement size. The spread depends on the shape: a 4 carat oval measures about 12.8 × 9.0 mm, while rounder or squarer shapes look smaller across the finger. Elongated shapes such as oval, marquise and pear spread the most.

Every stone lists its exact measurements — see 4 carat lab grown diamonds

Question 4

What color and clarity should I choose at 4 carat?

Accepted Answer

A big stone shows its color and inclusions more, so aim a touch higher. Around G–H color and VS2 clarity or better usually looks clean and white face-up at this size. Always watch the 360° video and check the stone looks eye-clean to you before you buy.

Question 5

Which shape looks biggest at 4 carat?

Accepted Answer

Elongated shapes look the largest for the weight. Oval, marquise, pear and emerald spread further across the finger, so they read bigger face-up. A round diamond looks the smallest of the shapes at the same carat weight, because more of its weight sits hidden in the depth.

Question 6

Is a lab grown 4 carat diamond real?

Accepted Answer

A lab grown diamond is a diamond — the same carbon crystal, the same hardness and the same sparkle as a mined one. The only difference is that it was grown in a lab instead of dug from the ground. Each stone is graded by IGI or GIA.

Learn more about lab grown diamonds.

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