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Cushion|Lab Grown|IGI

1.21ct D FL Cushion Lab Grown Diamond

ID • D/FL • IGI LG846664733

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG846664733

Diamond specifications and retailer prices

From £469 GBP
$628 USD
As of November 1, 2026
Save £724 GBP (61%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: £1,193 GBP at With Clarity · As of November 1, 2026
View at With Clarity

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 FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG846664733 or 846664733. Listed at 3 retailers as of November 1, 2026, with prices from £469 to £1,193, a £724 spread on the same certified stone. With Clarity lists it at £1,193. 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
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.9°
Pavilion angle35.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG846664733
Dimensions7.65 × 5.27 × 3.69 mm
L/W Ratio1.45
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
7.65 mm5.27 mm1.21 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG846664733
Side View
Table 64.0%Crown 39.9°Girdle: THK-VTKPavilion 35.2°CuletDepth 70.0%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 1
Current: £1,153 GBP|Low: £469 GBP|High: £1,193 GBP|Avg: £938 GBP
Retailer 1
Retailer 2
With Clarity
November 1, 2026
Retailer 2£469 GBP
Retailer 1£1,153 GBP
With Clarity£1,193 GBP

1 data point across 3 retailers

3 retailers£469 GBP to £1,193 GBP

A
Cheapest Retailer
-
£469 GBP
$628 USD
B
Retailer 2
-
£1,153 GBP
View
Most Expensive
B
With Clarity
846664733 · Nov 1
£1,193 GBP
$1,598 USD
View
2 more retailers have this diamond
Prices start from £469 GBPSave up to £724 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
£469 GBP