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Looking To Buy a 3 Carat Excellent Cut 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 Excellent Cut diamond is a refined and elegant option for engagement rings or bespoke jewellery. Expertly cut for symmetry and sparkle, it delivers intense brilliance and fire—ideal for those who value exceptional light performance and precision.
Lab-grown diamonds are real diamonds created in a laboratory setting, using either the High Pressure High Temperature (HPHT) or Chemical Vapor Deposition (CVD) process. They are physically, chemically, and visually the same as mined diamonds—so much so that even expert gemologists require advanced equipment to tell them apart.
Choosing lab-grown means saving 30% to 50% over the price of a natural diamond, all while making an environmentally conscious and ethical decision.
All REVE Diamonds’ lab-grown stones are independently certified, most commonly by IGI or GIA.
Call us on 020 3585 2295 or chat with our diamond experts to find your perfect 3 carat Excellent cut lab-grown diamond today.
An Ideal Cut diamond is crafted with mathematically precise angles to maximise light performance. It delivers unmatched fire, brilliance, and sparkle in all lighting conditions.
An Excellent Cut grade reflects precise craftsmanship that maximises the diamond’s sparkle and symmetry. It’s among the finest grades, delivering dazzling brilliance and fire.
Prices typically range from £4,000 to £22,000, depending on the diamond’s cut, colour, polish, symmetry, and certification. The Excellent Cut grade adds a premium to the price.
Lab grown diamonds are chemically and optically identical to mined diamonds. A 3ct Excellent Cut lab grown diamond offers the same beauty and quality at a significantly lower price and with a lower environmental impact.
Yes. Excellent Cut diamonds reflect light more effectively than Good or Very Good cuts, producing superior brilliance and fire, making them an ideal choice for discerning buyers.
A 3 carat diamond typically measures around 9.3 mm in diameter for a round cut or 9.5 mm x 9.5 mm for a square cut like Asscher. Cut quality does not affect the dimensions of the stone.