Loose Diamonds

6 Carat D Color Lab-Grown Diamond

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.

Carat · 6.00 – 6.99 ct
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Price · $100 – $1,400,000
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Cut grade only applies to Round diamonds.
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6 Carat D Color Lab-Grown Diamond

A 6 carat D color lab-grown diamond sits at the very top of the diamond color scale. This grade is a favorite for engagement rings and fine jewelry where brilliance and a bright white sparkle matter most. 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.

What Is a Lab-Grown 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 6 Carat D Color Lab-Grown Diamond, contact us today:
New York: +1 (646) 898 2098
Los Angeles: +1 (310) 920 6656
Or chat with us now!

Frequently Asked Questions

How much does a 6 carat D color lab-grown diamond cost?

Prices typically range from $9,460 to $39,550, reflecting the premium for this color grade.

What does D color mean?

D is the highest grade on the GIA color scale, meaning the diamond is completely colorless with no detectable tint.

Do I need D color in a 6 carat diamond?

Color is more noticeable in larger stones, so at larger carat weights it becomes more relevant to choosing the top grade.

Explore Our Collections

6 Carat D Color Lab-Grown Diamond | Rêve Diamonds