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Cushion|Lab Grown|IGI

6.55ct D VS2 Cushion Lab Grown Diamond

ID • D/VS2 • IGI LG644484590

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG644484590

Diamond specifications and retailer prices

From HK$12,749 HKD
$1,625 USD
As of October 29, 2026
Save HK$42,328 HKD (77%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: HK$55,077 HKD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 6.55ct lab-grown cushion diamond

This 6.55ct lab-grown cushion sits in the over five carat band, graded D colour (colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG644484590 or 644484590. Listed at 20 retailers as of October 29, 2026, with prices from HK$12,749 to HK$55,077, a HK$42,328 spread on the same certified stone. Brilliant Earth lists it at HK$55,077. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

6.55
Carat
D
Colour
VS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.8°
Pavilion angle32°
OriginLab Grown
Grading LabIGI
CertificateIGI LG644484590
Dimensions11.71 × 9.74 × 6.39 mm
L/W Ratio1.20
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.71 mm9.74 mm6.55 ctD / VS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG644484590
Side View
Table 63.0%Crown 37.8°Girdle: STK-VTKPavilion 32°Culet: NoneDepth 65.6%

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 29
Current: HK$55,077 HKD|Low: HK$12,749 HKD|High: HK$56,803 HKD|Avg: HK$28,972 HKD|-3.0%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
October 31, 2026
Retailer 17HK$12,749 HKD
Retailer 12HK$13,212 HKD
Retailer 14HK$14,189 HKD
Retailer 13HK$14,554 HKD
Retailer 9HK$15,265 HKD
Retailer 6HK$16,586 HKD
Retailer 2HK$18,649 HKD
Retailer 4HK$18,892 HKD
Retailer 15HK$20,257 HKD
Retailer 19HK$21,254 HKD
Retailer 3HK$28,747 HKD
Retailer 10HK$31,925 HKD
Retailer 7HK$33,901 HKD
Retailer 16HK$37,933 HKD
Retailer 5HK$38,806 HKD
Retailer 8HK$44,171 HKD
Retailer 20HK$45,270 HKD
Retailer 11HK$46,500 HKD
Retailer 18HK$47,427 HKD
Brilliant EarthHK$55,077 HKD

33 data points across 20 retailers

20 retailersHK$12,749 HKD to HK$55,077 HKD

A
Cheapest Retailer
-
HK$12,749 HKD
$1,625 USD
Final sale: no returns
Retailer 2
-
HK$13,212 HKD
$1,684 USD
View
Price last confirmed 18 days ago
A
Retailer 3
-
HK$14,189 HKD
£1,424 GBP
View
A
Retailer 4
-
HK$14,554 HKD
$1,855 USD
View
A
Retailer 5
-
HK$15,265 HKD
View
A
Retailer 6
-
HK$16,586 HKD
$2,114 USD
View
A
Retailer 7
-
HK$18,649 HKD
£1,872 GBP
View
A
Retailer 8
-
HK$18,892 HKD
$2,408 USD
View
A
Retailer 9
-
HK$20,257 HKD
€2,459 EUR
View
A
Retailer 10
-
HK$21,254 HKD
$2,709 USD
View
B+
Retailer 11
-
HK$28,747 HKD
$3,664 USD
View
B+
Retailer 12
-
HK$31,925 HKD
£3,204 GBP
View
B+
Retailer 13
-
HK$33,901 HKD
$4,321 USD
View
B+
Retailer 14
-
HK$37,933 HKD
£3,807 GBP
View
B+
Retailer 15
-
HK$38,806 HKD
$4,946 USD
View
B+
Retailer 16
-
HK$44,171 HKD
SGD 7,608 SGD
View
Retailer 17
-
HK$45,270 HKD
A$8,877 AUD
View
Price last confirmed 26 days ago
B
Retailer 18
-
HK$46,500 HKD
$5,927 USD
View
Retailer 19
-
HK$47,427 HKD
$6,045 USD
View
Price last confirmed 12 days ago
Most Expensive
B
Brilliant Earth
14721905A · Oct 29
HK$55,077 HKD
$7,020 USD
View
19 more retailers have this diamond
Prices start from HK$12,749 HKDSave up to HK$42,328 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
6.55ct Cushion
HK$12,749 HKD