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Cushion|Lab Grown|IGI

1.21ct D VVS1 Cushion Lab Grown Diamond

EX • D/VVS1 • IGI LG768680925

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG768680925

Diamond specifications and retailer prices

From £285 GBP
As of November 4, 2026
Save £449 GBP (61%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £957 GBP at Reve Diamonds · As of October 28, 2026
View at Reve Diamonds

About this 1.21ct lab-grown cushion diamond

This 1.21ct lab-grown cushion sits in the classic one-carat band, graded D colour (colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG768680925 or 768680925. Listed at 15 retailers as of November 4, 2026, with a 157% 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

1.21
Carat
D
Colour
VVS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.6°
Pavilion angle37°
OriginLab Grown
Grading LabIGI
CertificateIGI LG768680925
Dimensions6.29 × 5.92 × 4.05 mm
L/W Ratio1.06
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
6.29 mm5.92 mm1.21 ctD / VVS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG768680925
Side View
Table 57.0%Crown 34.6°Girdle: STK-VTKPavilion 37°Culet: NoneDepth 68.4%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 4
Current: £393 GBP|Low: £212 GBP|High: £859 GBP|Avg: £421 GBP|+1.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 4, 2026
Retailer 9£212 GBP
Retailer 4£243 GBP
Retailer 8£285 GBP
Retailer 2£340 GBP
Retailer 5£364 GBP
Retailer 1£393 GBP
Retailer 6£517 GBP
Retailer 3£704 GBP
Retailer 7£850 GBP

42 data points across 9 retailers

15 retailers£285 GBP to £734 GBP

Retailer 1
-
£212 GBP
Price last confirmed 11 days ago
Retailer 2
-
£243 GBP
View
Price last confirmed 8 days ago
A
Retailer 3
-
£285 GBP
View
A
Retailer 4
-
£340 GBP
View
Retailer 5
-
£364 GBP
View
Price last confirmed 8 days ago
Retailer 6
-
£390 GBP
View
Price last confirmed 7 days ago
A
Retailer 7
-
£393 GBP
View
Retailer 8
-
£437 GBP
View
Price last confirmed 9 days ago
Retailer 9
-
£515 GBP
View
Price last confirmed 39 days ago
Retailer 10
-
£517 GBP
View
Price last confirmed 9 days ago
Retailer 11
-
£704 GBP
View
Price last confirmed 8 days ago
Retailer 12
-
£720 GBP
View
Price last confirmed 8 days ago
B
Retailer 13
-
£734 GBP
View
Retailer 14
-
£850 GBP
View
Price last confirmed 10 days ago
Most Expensive
Reve Diamonds
B1FBF43FA · Oct 28
£957 GBP
$1,292 USD
View
Price last confirmed 7 days ago
14 more retailers have this diamond
Prices start from £285 GBPSave up to £449 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
£285 GBP