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Cushion|Lab Grown|IGI

1.31ct E VVS1 Cushion Lab Grown Diamond

EX • E/VVS1 • IGI LG772603946

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG772603946

Diamond specifications and retailer prices

From £321 GBP
$430 USD
As of October 30, 2026
Save £1,128 GBP (78%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £2,545 GBP at Do Amore Diamonds · As of October 30, 2026
View at Do Amore Diamonds

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 LG772603946 or 772603946. Listed at 14 retailers as of October 29, 2026, with a 352% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.4°
Pavilion angle37.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG772603946
Dimensions8.09 × 5.94 × 3.65 mm
L/W Ratio1.36
Girdle conditionFaceted
Culet sizeLarge
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.09 mm5.94 mm1.31 ctE / VVS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG772603946
Side View
Table 56.0%Crown 34.4°Girdle: MED-STKPavilion 37.7°Culet: LargeDepth 61.4%

Caratlytics Score

How it works →
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: £647 GBP|Low: £321 GBP|High: £2,545 GBP|Avg: £700 GBP|+2.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 30, 2026
Retailer 5£321 GBP
Retailer 2£402 GBP
Retailer 8£403 GBP
Retailer 3£465 GBP
Retailer 11£472 GBP
Retailer 1£647 GBP
Retailer 7£674 GBP
Retailer 10£880 GBP
Retailer 4£956 GBP
Retailer 9£1,149 GBP
Retailer 6£1,449 GBP

43 data points across 11 retailers

14 retailers£321 GBP to £1,449 GBP

A
Cheapest Retailer
-
£321 GBP
$430 USD
Final sale: no returns
A
Retailer 2
-
£402 GBP
$538 USD
View
A
Retailer 3
-
£403 GBP
$540 USD
View
A
Retailer 4
-
£465 GBP
$623 USD
View
B+
Retailer 5
-
£472 GBP
$632 USD
View
B+
Retailer 6
-
£647 GBP
View
B+
Retailer 7
-
£674 GBP
ZAR 14,596 ZAR
View
Retailer 8
-
£880 GBP
A$1,815 AUD
View
Price last confirmed 26 days ago
B
Retailer 9
-
£956 GBP
A$1,971 AUD
View
B
Retailer 10
-
£1,149 GBP
View
B
Retailer 11
-
£1,323 GBP
$1,773 USD
View
B
Retailer 12
-
£1,375 GBP
$1,842 USD
View
B
Retailer 13
-
£1,449 GBP
View
Most Expensive
Do Amore Diamonds
27-915A488BA · Oct 30
£2,545 GBP
$3,410 USD
View
Price under review
13 more retailers have this diamond
Prices start from £321 GBPSave up to £1,128 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
£321 GBP