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Cushion|Lab Grown|IGI

1.21ct E VVS2 Cushion Lab Grown Diamond

ID • E/VVS2 • IGI LG828628305

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

Certificate IGI LG828628305

Diamond specifications and retailer prices

From £159 GBP
As of November 4, 2026
Save £849 GBP (84%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £1,007 GBP at Brilliant Earth · As of November 4, 2026
View at Brilliant Earth

About this 1.21ct lab-grown cushion diamond

This 1.21ct lab-grown cushion sits in the classic one-carat band, graded E colour (colourless) and VVS2 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG828628305 or 828628305. Listed at 16 retailers as of November 4, 2026, with prices from £159 to £1,007, a £849 spread on the same certified stone. Brilliant Earth lists it at £1,007. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.21
Carat
E
Colour
VVS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle39.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG828628305
Dimensions6.13 × 6.12 × 4.16 mm
L/W Ratio1.00
Girdle conditionFaceted
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
6.13 mm6.12 mm1.21 ctE / VVS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG828628305
Side View
Table 61.0%Crown 36.5°Girdle: MED-THKPavilion 39.8°Culet: NoneDepth 68.0%

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: Nov 4
Current: £1,007 GBP|Low: £96 GBP|High: £1,007 GBP|Avg: £416 GBP
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
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Retailer 16
November 5, 2026
Retailer 8£96 GBP
Retailer 10£159 GBP
Retailer 7£182 GBP
Retailer 9£216 GBP
Retailer 5£296 GBP
Retailer 13£304 GBP
Retailer 16£309 GBP
Retailer 2£316 GBP
Retailer 14£350 GBP
Retailer 15£414 GBP
Retailer 12£430 GBP
Retailer 11£467 GBP
Retailer 4£607 GBP
Retailer 6£851 GBP
Retailer 3£866 GBP
Brilliant Earth£1,007 GBP

21 data points across 16 retailers

16 retailers£159 GBP to £1,007 GBP

A
Cheapest Retailer
-
£159 GBP
Final sale: no returns
Retailer 2
-
£182 GBP
View
Price last confirmed 11 days ago
A
Retailer 3
-
£216 GBP
View
A
Retailer 4
-
£296 GBP
View
A
Retailer 5
-
£304 GBP
View
A
Retailer 6
-
£309 GBP
View
A
Retailer 7
-
£316 GBP
View
A
Retailer 8
-
£350 GBP
View
A
Retailer 9
-
£414 GBP
View
B+
Retailer 10
-
£430 GBP
View
B+
Retailer 11
-
£467 GBP
View
B+
Retailer 12
-
£533 GBP
View
B+
Retailer 13
-
£607 GBP
View
Retailer 14
-
£851 GBP
View
Price last confirmed 10 days ago
B
Retailer 15
-
£866 GBP
View
Most Expensive
B
Brilliant Earth
22335332A · Nov 4
£1,007 GBP
$1,360 USD
View
15 more retailers have this diamond
Prices start from £159 GBPSave up to £849 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
1.21ct Cushion
£159 GBP