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Cushion|Lab Grown|IGI

6.37ct F VVS1 Cushion Lab Grown Diamond

ID • F/VVS1 • IGI LG830655481

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

Certificate IGI LG830655481

Diamond specifications and retailer prices

From £1,867 GBP
$2,505 USD
As of November 3, 2026
Save £4,110 GBP (69%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £5,976 GBP at Brilliant Earth · As of November 2, 2026
View at Brilliant Earth

About this 6.37ct lab-grown cushion diamond

This 6.37ct lab-grown cushion sits in the over five carat band, graded F colour (colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG830655481 or 830655481. Listed at 7 retailers as of November 2, 2026, with prices from £1,867 to £5,976, a £4,110 spread on the same certified stone. Brilliant Earth lists it at £5,976. 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

6.37
Carat
F
Colour
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.1°
Pavilion angle35.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG830655481
Dimensions10.47 × 10.39 × 6.86 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.47 mm10.39 mm6.37 ctF / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG830655481
Side View
Table 65.0%Crown 33.1°Girdle: MED-STKPavilion 35.1°CuletDepth 66.0%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 3
Current: £5,976 GBP|Low: £1,639 GBP|High: £11,647 GBP|Avg: £3,965 GBP|-48.7%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 2, 2026
Retailer 6£1,867 GBP
Retailer 7£2,262 GBP
Retailer 2£2,324 GBP
Retailer 5£2,666 GBP
Retailer 3£2,682 GBP
Retailer 4£4,110 GBP
Brilliant Earth£5,976 GBP

29 data points across 7 retailers

7 retailers£1,867 GBP to £5,976 GBP

A
Cheapest Retailer
-
£1,867 GBP
$2,505 USD
A
Retailer 2
-
£2,262 GBP
$3,035 USD
View
B+
Retailer 3
-
£2,324 GBP
$3,118 USD
View
B+
Retailer 4
-
£2,666 GBP
A$5,505 AUD
View
B+
Retailer 5
-
£2,682 GBP
€3,428 EUR
View
B
Retailer 6
-
£4,110 GBP
View
Most Expensive
B
Brilliant Earth
21497480A · Nov 2
£5,976 GBP
$8,020 USD
View
6 more retailers have this diamond
Prices start from £1,867 GBPSave up to £4,110 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
6.37ct Cushion
£1,867 GBP