Radiant|Lab Grown|IGI

6.64ct D VVS2 Radiant Lab Grown Diamond

GD • D/VVS2

Diamond specifications and retailer prices

From €2,335 EUR
$2,609 USD
As of October 30, 2026
Save €1,409 EUR (38%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: €9,546 EUR at Helzberg Diamonds · As of October 12, 2026
View at Helzberg Diamonds

About this 6.64ct lab-grown radiant diamond

This 6.64ct lab-grown radiant sits in the over five carat band, graded D colour (colourless) and VVS2 clarity (very-very-slightly-included), with a standard cut grade and certified by IGI. Listed at 10 retailers as of October 25, 2026, with a 60% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

6.64
Carat
D
Colour
VVS2
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
Dimensions14.12 × 8.80 × 5.86 mm
L/W Ratio1.60
Top View
14.12 mm8.80 mm6.64 ctD / VVS2
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI
Side View
Table 66.0%CrownGirdle: Slightly ThickPavilionCulet: NoneDepth 66.6%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: €9,546 EUR|Low: €2,335 EUR|High: €9,922 EUR|Avg: €4,417 EUR|-3.8%
Helzberg Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 30, 2026
Retailer 3€2,335 EUR
Retailer 6€2,540 EUR
Retailer 4€2,709 EUR
Retailer 2€2,926 EUR
Retailer 5€3,723 EUR
Helzberg Diamonds€9,546 EUR

20 data points across 6 retailers

10 retailers€2,335 EUR to €3,744 EUR

B+
Cheapest Retailer
-
€2,335 EUR
$2,609 USD
Retailer 2
-
€2,362 EUR
$2,639 USD
View
Price last confirmed 9 days ago
B+
Retailer 3
-
€2,540 EUR
$2,838 USD
View
Retailer 4
-
€2,555 EUR
$2,854 USD
View
Price last confirmed 8 days ago
B+
Retailer 5
-
€2,709 EUR
$3,026 USD
View
B+
Retailer 6
-
€2,724 EUR
$3,043 USD
View
B+
Retailer 7
-
€2,926 EUR
$3,269 USD
View
B
Retailer 8
-
€3,723 EUR
$4,159 USD
View
B+
Retailer 9
-
€3,744 EUR
$4,183 USD
View
Most Expensive
Helzberg Diamonds
ZXZOKHMLGOPJ · Oct 12
€9,546 EUR
$10,665 USD
View
Price last confirmed 20 days ago
9 more retailers have this diamond
Prices start from €2,335 EURSave up to €1,409 EUR

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

B+
6.64ct Radiant
€2,335 EUR