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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 £734 GBP
$977 USD
As of October 27, 2026
Save £4,012 GBP (85%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £4,746 GBP 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 £734 to £4,746, a £4,012 spread on the same certified stone. Brilliant Earth lists it at £4,746. 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: £4,746 GBP|Low: £734 GBP|High: £4,746 GBP|Avg: £2,234 GBP
Brilliant Earth
Retailer 2
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Retailer 8
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Retailer 10
Retailer 11
Retailer 12
Retailer 13
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Retailer 18
October 29, 2026
Retailer 9£734 GBP
Retailer 14£817 GBP
Retailer 11£875 GBP
Retailer 18£894 GBP
Retailer 8£1,083 GBP
Retailer 2£1,150 GBP
Retailer 15£1,163 GBP
Retailer 4£1,221 GBP
Retailer 3£1,589 GBP
Retailer 6£2,106 GBP
Retailer 7£2,379 GBP
Retailer 5£2,383 GBP
Retailer 13£2,524 GBP
Retailer 16£2,854 GBP
Retailer 12£3,600 GBP
Retailer 10£3,683 GBP
Retailer 17£4,378 GBP
Brilliant Earth£4,746 GBP

33 data points across 18 retailers

18 retailers£734 GBP to £4,746 GBP

A
Cheapest Retailer
-
£734 GBP
$977 USD
Final sale: no returns
A
Retailer 2
-
£817 GBP
View
A
Retailer 3
-
£875 GBP
HK$9,100 HKD
View
A
Retailer 4
-
£894 GBP
$1,190 USD
View
A
Retailer 5
-
£1,083 GBP
$1,442 USD
View
A
Retailer 6
-
£1,150 GBP
€1,458 EUR
View
A
Retailer 7
-
£1,163 GBP
View
B+
Retailer 8
-
£1,221 GBP
$1,626 USD
View
A
Retailer 9
-
£1,589 GBP
$2,116 USD
View
Retailer 10
-
£2,106 GBP
View
Price last confirmed 14 days ago
A
Retailer 11
-
£2,379 GBP
$3,168 USD
View
A
Retailer 12
-
£2,383 GBP
$3,173 USD
View
B+
Retailer 13
-
£2,524 GBP
SGD 4,543 SGD
View
B+
Retailer 14
-
£2,854 GBP
View
B+
Retailer 15
-
£3,600 GBP
$4,794 USD
View
Retailer 16
-
£3,683 GBP
A$7,546 AUD
View
Price last confirmed 21 days ago
Retailer 17
-
£4,378 GBP
$5,830 USD
View
Price last confirmed 11 days ago
Most Expensive
B
Brilliant Earth
17704298A · Oct 29
£4,746 GBP
$6,320 USD
View
17 more retailers have this diamond
Prices start from £734 GBPSave up to £4,012 GBP

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
£734 GBP