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 $324 USD
£255 GBP
As of October 27, 2026
2 retailers carry this diamond
Most expensive: $1,140 USD 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. 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

No score right now
No retailer has confirmed this stone recently, so we are not scoring it. Prices below are as of the date shown.

Price History

Last verified: Oct 27
Current: $1,140 USD|Low: $322 USD|High: $1,140 USD|Avg: $740 USD
Brilliant Earth
Retailer 2
October 27, 2026
Retailer 2$324 USD
Brilliant Earth$1,140 USD

10 data points across 2 retailers

2 retailers$324 USD to $1,140 USD

Retailer 1
-
$324 USD
£255 GBP
Price last confirmed 7 days ago
Most Expensive
Brilliant Earth
21744442A · Oct 26
$1,140 USD
View
Price last confirmed 7 days ago
1 more retailer has this diamond

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.

1.21ct Cushion
$324 USD