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Cushion|Lab Grown|IGI

1.21ct D VS2 Cushion Lab Grown Diamond

ID • D/VS2 • IGI LG803656276

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

Certificate IGI LG803656276

Diamond specifications and retailer prices

From £154 GBP
$207 USD
As of October 31, 2026
Save £744 GBP (83%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £899 GBP at Flawless Fine Jewelry · As of October 31, 2026
View at Flawless Fine Jewelry

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 VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG803656276 or 803656276. Listed at 14 retailers as of October 31, 2026, with prices from £154 to £899, a £744 spread on the same certified stone. Flawless Fine Jewelry lists it at £899. 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
VS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.3°
Pavilion angle39.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG803656276
Dimensions6.25 × 6.14 × 4.02 mm
L/W Ratio1.02
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
6.25 mm6.14 mm1.21 ctD / VS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG803656276
Side View
Table 64.0%Crown 36.3°Girdle: MED-THKPavilion 39.5°Culet: NoneDepth 65.5%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 31
Current: £899 GBP|Low: £109 GBP|High: £899 GBP|Avg: £451 GBP
Flawless Fine Jewelry
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
October 31, 2026
Retailer 2£154 GBP
Retailer 6£164 GBP
Retailer 14£279 GBP
Retailer 11£302 GBP
Retailer 7£308 GBP
Retailer 9£334 GBP
Retailer 8£447 GBP
Retailer 4£500 GBP
Retailer 5£534 GBP
Retailer 10£582 GBP
Retailer 13£592 GBP
Retailer 3£773 GBP
Retailer 12£856 GBP
Flawless Fine Jewelry£899 GBP

45 data points across 14 retailers

14 retailers£154 GBP to £899 GBP

A
Cheapest Retailer
-
£154 GBP
$207 USD
Final sale: no returns
A
Retailer 2
-
£164 GBP
$220 USD
View
A
Retailer 3
-
£279 GBP
€356 EUR
View
A
Retailer 4
-
£302 GBP
$404 USD
View
A
Retailer 5
-
£308 GBP
View
A
Retailer 6
-
£334 GBP
$447 USD
View
B+
Retailer 7
-
£447 GBP
$599 USD
View
B+
Retailer 8
-
£500 GBP
$670 USD
View
B+
Retailer 9
-
£534 GBP
A$1,100 AUD
View
B+
Retailer 10
-
£582 GBP
$780 USD
View
B
Retailer 11
-
£592 GBP
$793 USD
View
B
Retailer 12
-
£773 GBP
View
B
Retailer 13
-
£856 GBP
$1,147 USD
View
Most Expensive
B
Flawless Fine Jewelry
41B93D654 · Oct 31
£899 GBP
View
13 more retailers have this diamond
Prices start from £154 GBPSave up to £744 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
£154 GBP