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Radiant|Lab Grown|IGI

6.64ct D VVS2 Radiant Lab Grown Diamond

GD • D/VVS2

Diamond specifications and retailer prices

From HK$20,469 HKD
$2,609 USD
As of October 30, 2026
Save HK$12,349 HKD (38%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: HK$83,674 HKD 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 →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: HK$83,674 HKD|Low: HK$20,469 HKD|High: HK$86,970 HKD|Avg: HK$38,718 HKD|-3.8%
Helzberg Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 30, 2026
Retailer 3HK$20,469 HKD
Retailer 6HK$22,266 HKD
Retailer 4HK$23,741 HKD
Retailer 2HK$25,648 HKD
Retailer 5HK$32,630 HKD
Helzberg DiamondsHK$83,674 HKD

20 data points across 6 retailers

10 retailersHK$20,469 HKD to HK$32,819 HKD

B+
Cheapest Retailer
-
HK$20,469 HKD
$2,609 USD
Retailer 2
-
HK$20,705 HKD
$2,639 USD
View
Price last confirmed 8 days ago
B+
Retailer 3
-
HK$22,266 HKD
$2,838 USD
View
A
Retailer 4
-
HK$22,392 HKD
$2,854 USD
View
B+
Retailer 5
-
HK$23,741 HKD
$3,026 USD
View
B+
Retailer 6
-
HK$23,874 HKD
$3,043 USD
View
B+
Retailer 7
-
HK$25,648 HKD
$3,269 USD
View
B
Retailer 8
-
HK$32,630 HKD
$4,159 USD
View
B+
Retailer 9
-
HK$32,819 HKD
$4,183 USD
View
Most Expensive
Helzberg Diamonds
ZXZOKHMLGOPJ · Oct 12
HK$83,674 HKD
$10,665 USD
View
Price last confirmed 19 days ago
9 more retailers have this diamond
Prices start from HK$20,469 HKDSave up to HK$12,349 HKD

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.

A
6.64ct Radiant
HK$20,469 HKD