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Cushion|Lab Grown|IGI

1.21ct F VS2 Cushion Lab Grown Diamond

ID • F/VS2 • IGI LG805666642

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

Certificate IGI LG805666642

Diamond specifications and retailer prices

From $770 USD
As of October 31, 2026
3 retailers carry this diamond
Most expensive: $770 USD at Brilliant Earth
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 F colour (colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG805666642 or 805666642. Listed at 3 retailers as of October 31, 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
F
Color
VS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG805666642
Dimensions6.21 × 6.13 × 4.14 mm
L/W Ratio1.01
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
6.21 mm6.13 mm1.21 ctF / VS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG805666642
Side View
Table 64.0%Crown 37°Girdle: MED-THKPavilion 40.3°Culet: NoneDepth 67.5%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Oct 31
Current: $770 USD|Low: $130 USD|High: $71,000 USD|Avg: $2,204 USD
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
September 2, 2026
Retailer 10$134 USD
Retailer 8$320 USD
Retailer 9$344 USD
Retailer 2$356 USD
Retailer 4$442 USD
Retailer 7$542 USD
Retailer 5$594 USD
Retailer 11$615 USD
Retailer 6$624 USD
Retailer 3$728 USD
Brilliant Earth$770 USD
Retailer 12$1,094 USD

52 data points across 12 retailers

3 retailers

Retailer 1
-
$615 USD
A$946 AUD
Price last confirmed 81 days ago
Retailer 2
-
$624 USD
View
Price last confirmed 76 days ago
Most Expensive
B
Brilliant Earth
20307311A · Oct 31
$770 USD
View
2 more retailers have 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.

B
1.21ct Cushion
$770 USD