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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 $977 USD
As of October 27, 2026
Save $5,343 USD (85%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $6,320 USD 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 $977 to $6,320, a $5,343 spread on the same certified stone. Brilliant Earth lists it at $6,320. 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
Color
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: $6,320 USD|Low: $977 USD|High: $6,320 USD|Avg: $2,975 USD
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
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Retailer 17
Retailer 18
October 29, 2026
Retailer 9$977 USD
Retailer 14$1,088 USD
Retailer 11$1,165 USD
Retailer 18$1,190 USD
Retailer 8$1,442 USD
Retailer 2$1,531 USD
Retailer 15$1,548 USD
Retailer 4$1,626 USD
Retailer 3$2,116 USD
Retailer 6$2,804 USD
Retailer 7$3,168 USD
Retailer 5$3,173 USD
Retailer 13$3,362 USD
Retailer 16$3,801 USD
Retailer 12$4,794 USD
Retailer 10$4,905 USD
Retailer 17$5,830 USD
Brilliant Earth$6,320 USD

33 data points across 18 retailers

18 retailers$977 USD to $6,320 USD

A
Cheapest Retailer
-
$977 USD
Final sale: no returns
A
Retailer 2
-
$1,088 USD
£857 GBP
View
A
Retailer 3
-
$1,165 USD
HK$9,100 HKD
View
A
Retailer 4
-
$1,190 USD
View
A
Retailer 5
-
$1,442 USD
View
A
Retailer 6
-
$1,531 USD
€1,458 EUR
View
A
Retailer 7
-
$1,548 USD
£1,219 GBP
View
B+
Retailer 8
-
$1,626 USD
View
A
Retailer 9
-
$2,116 USD
View
Retailer 10
-
$2,804 USD
£2,208 GBP
View
Price last confirmed 13 days ago
A
Retailer 11
-
$3,168 USD
View
A
Retailer 12
-
$3,173 USD
View
B+
Retailer 13
-
$3,362 USD
SGD 4,543 SGD
View
B+
Retailer 14
-
$3,801 USD
£2,993 GBP
View
B+
Retailer 15
-
$4,794 USD
View
Retailer 16
-
$4,905 USD
A$7,546 AUD
View
Price last confirmed 21 days ago
Retailer 17
-
$5,830 USD
View
Price last confirmed 11 days ago
Most Expensive
B
Brilliant Earth
17704298A · Oct 29
$6,320 USD
View
17 more retailers have this diamond
Prices start from $977 USDSave up to $5,343 USD

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
$977 USD