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Cushion|Lab Grown|IGI

1.21ct G VS1 Cushion Lab Grown Diamond

EX • G/VS1 • IGI LG843620290

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG843620290

Diamond specifications and retailer prices

From €289 EUR
£255 GBP
As of October 27, 2026
Save €727 EUR (72%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: €1,016 EUR at Brilliant Earth · As of October 26, 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 G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG843620290 or 843620290. Listed at 2 retailers as of October 26, 2026, with prices from €289 to €1,016, a €727 spread on the same certified stone. Brilliant Earth lists it at €1,016. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.21
Carat
G
Color
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.8°
Pavilion angle36°
OriginLab Grown
Grading LabIGI
CertificateIGI LG843620290
Dimensions7.66 × 5.50 × 3.70 mm
L/W Ratio1.39
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.66 mm5.50 mm1.21 ctG / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG843620290
Side View
Table 60.0%Crown 37.8°Girdle: MED-STKPavilion 36°Culet: NoneDepth 67.3%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 27
Current: €1,016 EUR|Low: €287 EUR|High: €1,016 EUR|Avg: €660 EUR
Brilliant Earth
Retailer 2
October 27, 2026
Retailer 2€289 EUR
Brilliant Earth€1,016 EUR

10 data points across 2 retailers

2 retailers€289 EUR to €1,016 EUR

A
Cheapest Retailer
-
€289 EUR
£255 GBP
Most Expensive
B
Brilliant Earth
21744442A · Oct 26
€1,016 EUR
$1,140 USD
View
1 more retailer has this diamond
Prices start from €289 EURSave up to €727 EUR

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
€289 EUR