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 4 carat cushion cut lab-grown diamond pairs rounded corners with larger facets for a soft, pillow-like silhouette and warm, romantic brilliance. Its antique-inspired shape has made it a lasting favorite for vintage and halo-style engagement rings. At 4 carats, this is a substantial, statement-size diamond.
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 4 Carat Cushion 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 $4,760 to $20,700, depending on specifications such as cut, color, and clarity.
A 4 carat diamond weighs around 0.8 grams (800 milligrams), no matter the shape.
Cushion cut diamonds are squarish with rounded corners. Typical dimensions are:
Length: 9.0mm – 10.0mm (average 9.5mm)
Width: 9.0mm – 10.0mm (average 9.5mm)
Depth: 6.2mm – 7.1mm (average 6.7mm)