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Cushion|Lab Grown|IGI

1.31ct E VVS1 Cushion Lab Grown Diamond

ID • E/VVS1 • IGI LG779661359

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG779661359

Diamond specifications and retailer prices

From £170 GBP
$228 USD
As of October 30, 2026
Save £730 GBP (81%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £900 GBP at Reve Diamonds · As of October 30, 2026
View at Reve 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 LG779661359 or 779661359. Listed at 13 retailers as of October 30, 2026, with prices from £170 to £900, a £730 spread on the same certified stone. Reve Diamonds lists it at £900. 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 angle35.7°
Pavilion angle32.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG779661359
Dimensions8.14 × 5.48 × 3.45 mm
L/W Ratio1.49
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.14 mm5.48 mm1.31 ctE / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG779661359
Side View
Table 60.0%Crown 35.7°Girdle: STK-THKPavilion 32.2°Culet: NoneDepth 63.0%

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: £344 GBP|Low: £170 GBP|High: £900 GBP|Avg: £487 GBP|-2.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Reve Diamonds
October 31, 2026
Retailer 9£170 GBP
Retailer 5£232 GBP
Retailer 3£255 GBP
Retailer 8£319 GBP
Retailer 1£344 GBP
Retailer 12£430 GBP
Retailer 7£461 GBP
Retailer 11£475 GBP
Retailer 4£616 GBP
Retailer 2£647 GBP
Retailer 10£739 GBP
Retailer 6£887 GBP
Reve Diamonds£900 GBP

43 data points across 13 retailers

13 retailers£170 GBP to £900 GBP

A
Cheapest Retailer
-
£170 GBP
$228 USD
Final sale: no returns
A
Retailer 2
-
£232 GBP
View
B+
Retailer 3
-
£255 GBP
$342 USD
View
Retailer 4
-
£319 GBP
ZAR 6,911 ZAR
View
Price last confirmed 8 days ago
A
Retailer 5
-
£344 GBP
View
A
Retailer 6
-
£430 GBP
$576 USD
View
A
Retailer 7
-
£461 GBP
A$951 AUD
View
A
Retailer 8
-
£475 GBP
$637 USD
View
B+
Retailer 9
-
£616 GBP
SGD 1,116 SGD
View
B+
Retailer 10
-
£647 GBP
$867 USD
View
B+
Retailer 11
-
£739 GBP
View
B
Retailer 12
-
£887 GBP
View
Most Expensive
B
Reve Diamonds
24DADD760 · Oct 30
£900 GBP
$1,207 USD
View
12 more retailers have this diamond
Prices start from £170 GBPSave up to £730 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
£170 GBP