Welcome to Rêve Diamonds, your trusted GIA certified diamond dealer in London. We specialise in providing the finest wholesale diamonds, offering you unparalleled quality at unbeatable prices.
A 6 carat marquise cut lab-grown diamond features a narrow, boat-shaped silhouette with pointed ends that maximizes apparent size and elongates the finger. Its elegant, elongated shape has made it a distinctive choice for vintage-inspired engagement rings since the 18th century. A 6 carat stone of this kind is a rare, dramatic centerpiece — most jewelers handle only a handful of loose diamonds this size each year.
Lab-grown diamonds are real diamonds created using either the High Pressure High Temperature (HPHT) or Chemical Vapor Deposition (CVD) method in a lab. These stones share the same physical, chemical, and visual properties as mined diamonds—only their origin differs. Even trained gemologists require special tools to tell them apart.
Choosing lab-grown means saving 30% to 50% over the cost of natural diamonds while making a sustainable and ethical choice.
All Rève Diamonds' lab-grown diamonds are independently certified, typically by IGI or GIA.
If you need assistance selecting your 6 Carat Marquise Cut Lab-Grown Diamond, contact us today:
New York: +1 (646) 898 2098
Los Angeles: +1 (310) 920 6656
Or chat with us now!
Prices typically range from $6,880 to $28,400, depending on specifications such as cut, color, and clarity.
A 6 carat diamond weighs around 1.2 grams (1,200 milligrams), no matter the shape.
Marquise cut diamonds are elongated with pointed ends. Typical dimensions are:
Length: 17.6mm – 18.7mm (average 18.2mm)
Width: 8.5mm – 9.6mm (average 9.1mm)
Depth: 5.6mm – 6.7mm (average 6.2mm)