Loose Diamonds

3 Carat Princess Cut Lab Grown Diamonds

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.

Carat · 3.00 – 3.49 ct
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ct
Color
Price · $100 – $1,400,000
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Cut
Cut grade only applies to Round diamonds.
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3 Carat Princess Cut Lab-Grown Diamond

Make a striking and contemporary statement with a 3 carat princess cut lab-grown diamond. Known for its square shape and brilliant faceting, the princess cut is a modern favorite for engagement rings and luxury jewelry, blending sharp elegance with radiant sparkle.

What Is a Lab-Grown Diamond?

Lab-grown diamonds are real diamonds created in a lab environment, using High Pressure High Temperature (HPHT) or Chemical Vapor Deposition (CVD) techniques. These diamonds are physically, chemically, and optically identical to mined diamonds—so much so that only specialized instruments can detect the difference.

Choosing a lab-grown diamond offers savings of 30% to 50% compared to natural diamonds and supports an ethical, eco-conscious approach to fine jewelry.

All REVE Diamonds’ lab-created stones are independently certified, typically by IGI or GIA.

If you need assistance selecting your 3 Carat Princess Cut Lab-Grown Diamond, contact us today:

New York: +1 (646) 898 2098

Los Angeles: +1 (310) 920 6656

Or chat with us now!

Frequently Asked Questions

How much does a 3 carat princess cut lab-grown diamond cost?

Prices typically range from $3,000 to $25,000 depending on the 4 Cs (Carat, Cut, Color, Clarity).

How much does a 3 carat princess cut diamond weigh?

Approximately 0.6 grams or 600 milligrams.

How large is a 3 carat princess cut diamond?

Princess cut diamonds are usually square. You can expect:

Length: 8.0 mm – 9.5 mm (average 8.6 mm)

Width: 8.0 mm – 9.5 mm (average 8.6 mm)

Depth: 5.2 mm – 6.8 mm (average 6.0 mm)

Explore Our Collections

3 Carat Princess Cut Lab-Grown Diamond | Rêve Diamonds