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Cushion|Lab Grown|IGI

1.31ct E VVS1 Cushion Lab Grown Diamond

ID • E/VVS1 • IGI LG803604756

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG803604756

Diamond specifications and retailer prices

From £352 GBP
$471 USD
As of October 30, 2026
Save £611 GBP (63%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £963 GBP at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 1.31ct lab-grown cushion diamond

This 1.31ct lab-grown cushion sits in the one-and-a-quarter to one-and-a-half carat band, graded E colour (colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG803604756 or 803604756. Listed at 9 retailers as of October 30, 2026, with prices from £352 to £963, a £611 spread on the same certified stone. Brilliant Earth lists it at £963. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.31
Carat
E
Colour
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.3°
Pavilion angle32.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG803604756
Dimensions8.03 × 5.32 × 3.63 mm
L/W Ratio1.51
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
8.03 mm5.32 mm1.31 ctE / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG803604756
Side View
Table 56.0%Crown 36.3°Girdle: MED-THKPavilion 32.5°Culet: NoneDepth 68.2%

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 30
Current: £963 GBP|Low: £283 GBP|High: £1,455 GBP|Avg: £637 GBP|-33.8%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 31, 2026
Retailer 5£352 GBP
Retailer 6£375 GBP
Retailer 7£390 GBP
Retailer 4£391 GBP
Retailer 2£429 GBP
Retailer 9£761 GBP
Retailer 8£860 GBP
Retailer 3£918 GBP
Brilliant Earth£963 GBP

31 data points across 9 retailers

9 retailers£352 GBP to £963 GBP

A
Cheapest Retailer
-
£352 GBP
$471 USD
A
Retailer 2
-
£375 GBP
$503 USD
View
A
Retailer 3
-
£390 GBP
$522 USD
View
A
Retailer 4
-
£391 GBP
ZAR 8,468 ZAR
View
A
Retailer 5
-
£429 GBP
View
Retailer 6
-
£761 GBP
$1,019 USD
View
Price last confirmed 52 days ago
B
Retailer 7
-
£860 GBP
$1,152 USD
View
B
Retailer 8
-
£918 GBP
View
Most Expensive
B
Brilliant Earth
21523618Y · Oct 30
£963 GBP
$1,290 USD
View
8 more retailers have this diamond
Prices start from £352 GBPSave up to £611 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
1.31ct Cushion
£352 GBP