Cushion|Lab Grown|IGI

1.21ct D VVS1 Cushion Lab Grown Diamond

EX • D/VVS1 • IGI LG808635658

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

Certificate IGI LG808635658

Diamond specifications and retailer prices

From $434 USD
€413 EUR
As of October 31, 2026
Save $1,106 USD (72%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $1,540 USD at Brilliant Earth · As of October 31, 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 D colour (colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG808635658 or 808635658. Listed at 10 retailers as of October 31, 2026, with prices from $434 to $1,540, a $1,106 spread on the same certified stone. Brilliant Earth lists it at $1,540. 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
Color
VVS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.4°
Pavilion angle40.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG808635658
Dimensions6.25 × 6.08 × 4.15 mm
L/W Ratio1.03
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
6.25 mm6.08 mm1.21 ctD / VVS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG808635658
Side View
Table 60.0%Crown 34.4°Girdle: MED-THKPavilion 40.1°Culet: NoneDepth 68.3%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 31
Current: $1,540 USD|Low: $423 USD|High: $1,680 USD|Avg: $809 USD|-8.3%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 2, 2026
Retailer 4$434 USD
Retailer 7$453 USD
Retailer 2$483 USD
Retailer 6$584 USD
Retailer 5$701 USD
Retailer 8$899 USD
Retailer 9$987 USD
Retailer 3$1,055 USD
Brilliant Earth$1,540 USD

44 data points across 9 retailers

10 retailers$434 USD to $1,540 USD

A
Cheapest Retailer
-
$434 USD
€413 EUR
A
Retailer 2
-
$453 USD
View
A
Retailer 3
-
$483 USD
£380 GBP
View
B+
Retailer 4
-
$584 USD
View
B+
Retailer 5
-
$701 USD
View
B
Retailer 6
-
$899 USD
View
B+
Retailer 7
-
$987 USD
A$1,518 AUD
View
B+
Retailer 8
-
$1,055 USD
£831 GBP
View
Retailer 9
-
$1,167 USD
View
Price last confirmed 112 days ago
Most Expensive
B
Brilliant Earth
20998111A · Oct 31
$1,540 USD
View
9 more retailers have this diamond
Prices start from $434 USDSave up to $1,106 USD

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
$434 USD