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Looking To Buy a 3 Carat D Colour Lab Grown Diamond?
Search through our inventory below or book a visit to our London Showroom.
Round
Princess
Cushion
Emerald
Pear
Oval
Marquise
Radiant
Asscher
Heart
European Cut
Old Miner
Rose
Briolette
Bullets
Calf
Flanders
Half Moon
Hexagonal
Kite
Lozenge
Octagonal
Pentagonal
Shield
Square
Star
Tapered Baguette
Baguette
Tapered Bullet
Trapezoid
Triangular
Trilliant
Other
A 3-carat D colour diamond is the ultimate statement of purity and brilliance, perfect for engagement rings or standout jewellery. With no visible tint, its icy-white appearance offers unmatched sparkle, making it ideal for those seeking top-tier quality and timeless elegance.
Lab-grown diamonds are real diamonds, produced in high-tech labs that mimic natural geological processes. They are chemically and physically the same as mined diamonds but cost significantly less. With up to 50% savings, you can invest in a bigger or higher quality stone without sacrificing ethics or beauty.
At RÊVE Diamonds, every lab-grown diamond is independently graded and certified, typically by IGI or GIA—ensuring trust and transparency in every purchase.
Call us on 020 3585 2295 or chat with our diamond experts to find your perfect 3 carat D colour lab-grown diamond today.
Prices typically range from £3,000 to £22,000 depending on cut, clarity, and certification.
A 3-carat diamond weighs about 0.6 grams (600 milligrams).
D colour diamonds come in various shapes. Here's an example for a round 3-carat:
Diameter: 9.2 mm – 9.5 mm (avg. 9.3 mm)
Depth: 5.5 mm – 6.0 mm (avg. 5.8 mm)
Ratio and spread depend on the cut and proportions.