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Cushion|Lab Grown|IGI

6.51ct E VS2 Cushion Lab Grown Diamond

EX • E/VS2 • IGI LG770627210

Shape and cutting style on the report: Square cushion modified brilliant

Certificate IGI LG770627210

Diamond specifications and retailer prices

From HK$7,666 HKD
$977 USD
As of October 27, 2026
Save HK$41,923 HKD (85%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: HK$49,589 HKD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 6.51ct lab-grown cushion diamond

This 6.51ct lab-grown cushion sits in the over five carat band, graded E colour (colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG770627210 or 770627210. Listed at 18 retailers as of October 27, 2026, with prices from HK$7,666 to HK$49,589, a HK$41,923 spread on the same certified stone. Brilliant Earth lists it at HK$49,589. 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

6.51
Carat
E
Colour
VS2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.6°
Pavilion angle34.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG770627210
Dimensions10.73 × 10.67 × 10.73 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.73 mm10.67 mm6.51 ctE / VS2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG770627210
Side View
Table 67.0%Crown 34.6°Girdle: STK-VTKPavilion 34.9°Culet: NoneDepth 62.5%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 27
Current: HK$49,589 HKD|Low: HK$7,666 HKD|High: HK$49,589 HKD|Avg: HK$23,345 HKD
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
October 29, 2026
Retailer 9HK$7,666 HKD
Retailer 14HK$8,536 HKD
Retailer 11HK$9,139 HKD
Retailer 18HK$9,337 HKD
Retailer 8HK$11,315 HKD
Retailer 2HK$12,012 HKD
Retailer 15HK$12,148 HKD
Retailer 4HK$12,758 HKD
Retailer 3HK$16,603 HKD
Retailer 6HK$22,003 HKD
Retailer 7HK$24,857 HKD
Retailer 5HK$24,897 HKD
Retailer 13HK$26,378 HKD
Retailer 16HK$29,825 HKD
Retailer 12HK$37,616 HKD
Retailer 10HK$38,486 HKD
Retailer 17HK$45,745 HKD
Brilliant EarthHK$49,589 HKD

33 data points across 18 retailers

18 retailersHK$7,666 HKD to HK$49,589 HKD

A
Cheapest Retailer
-
HK$7,666 HKD
$977 USD
Final sale: no returns
A
Retailer 2
-
HK$8,536 HKD
£857 GBP
View
A
Retailer 3
-
HK$9,139 HKD
View
A
Retailer 4
-
HK$9,337 HKD
$1,190 USD
View
A
Retailer 5
-
HK$11,315 HKD
$1,442 USD
View
A
Retailer 6
-
HK$12,012 HKD
€1,458 EUR
View
A
Retailer 7
-
HK$12,148 HKD
£1,219 GBP
View
B+
Retailer 8
-
HK$12,758 HKD
$1,626 USD
View
A
Retailer 9
-
HK$16,603 HKD
$2,116 USD
View
Retailer 10
-
HK$22,003 HKD
£2,208 GBP
View
Price last confirmed 14 days ago
A
Retailer 11
-
HK$24,857 HKD
$3,168 USD
View
A
Retailer 12
-
HK$24,897 HKD
$3,173 USD
View
B+
Retailer 13
-
HK$26,378 HKD
SGD 4,543 SGD
View
B+
Retailer 14
-
HK$29,825 HKD
£2,993 GBP
View
B+
Retailer 15
-
HK$37,616 HKD
$4,794 USD
View
Retailer 16
-
HK$38,486 HKD
A$7,546 AUD
View
Price last confirmed 21 days ago
Retailer 17
-
HK$45,745 HKD
$5,830 USD
View
Price last confirmed 11 days ago
Most Expensive
B
Brilliant Earth
17704298A · Oct 29
HK$49,589 HKD
$6,320 USD
View
17 more retailers have this diamond
Prices start from HK$7,666 HKDSave up to HK$41,923 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
6.51ct Cushion
HK$7,666 HKD