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Looking To Buy a 3 Carat Emerald Cut Lab Grown Diamond?
Search through our inventory below or book a visit to our London Showroom.
Round
Princess
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Emerald
Pear
Oval
Marquise
Radiant
Asscher
Heart
European Cut
Old Miner
Rose
Briolette
Bullets
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Flanders
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Lozenge
Octagonal
Pentagonal
Shield
Square
Star
Tapered Baguette
Baguette
Tapered Bullet
Trapezoid
Triangular
Trilliant
Other
A 3-carat emerald cut diamond is a refined choice for engagement rings or statement jewellery, combining vintage elegance with modern simplicity. Its elongated rectangular shape and parallel facets create a hall-of-mirrors effect that highlights clarity and symmetry, perfect for those who appreciate understated sophistication.
Lab-grown diamonds are real diamonds created using advanced laboratory technology that mirrors the conditions in which natural diamonds are formed. They are chemically, physically, and visually the same as mined diamonds—the only difference is their origin. Lab-created diamonds are generally 30% to 50% more affordable, giving you greater value without compromising brilliance.
At RÊVE Diamonds, our lab-grown diamonds are certified by leading gemological bodies such as IGI or GIA, ensuring you receive a quality stone you can trust.
Call us on 020 3585 2295 or chat with our diamond experts to find your perfect 3 carat emerald cut lab-grown diamond today.
Prices range from £2,500 to £20,000 based on cut, colour, clarity, and certification.
A 3-carat diamond weighs around 0.6 grams (600 milligrams).
Emerald cut diamonds are rectangular. Approximate dimensions include:
Length: 10.5 mm – 12.5 mm (avg. 11.4 mm)
Width: 6.5 mm – 8.0 mm (avg. 7.2 mm)
Depth: 4.5 mm – 6.5 mm (avg. 5.5 mm)