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Cushion|Lab Grown|IGI

1.20ct E VS1 Cushion Lab Grown Diamond

ID • E/VS1 • IGI LG803604001

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

Certificate IGI LG803604001

Diamond specifications and retailer prices

From $232 USD
As of October 29, 2026
Save $1,018 USD (81%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $1,250 USD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.2ct lab-grown cushion diamond

This 1.2ct lab-grown cushion sits in the classic one-carat band, graded E colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG803604001 or 803604001. Listed at 15 retailers as of October 29, 2026, with prices from $232 to $1,250, a $1,018 spread on the same certified stone. Brilliant Earth lists it at $1,250. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.20
Carat
E
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.6°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG803604001
Dimensions6.24 × 6.20 × 4.10 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
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
6.24 mm6.20 mm1.20 ctE / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG803604001
Side View
Table 59.0%Crown 34.6°Girdle: THN-STKPavilion 40.2°Culet: NoneDepth 66.1%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: $1,250 USD|Low: $203 USD|High: $1,250 USD|Avg: $566 USD|+11.6%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
October 29, 2026
Retailer 12$232 USD
Retailer 7$234 USD
Retailer 14$284 USD
Retailer 8$356 USD
Retailer 11$382 USD
Retailer 3$399 USD
Retailer 10$406 USD
Retailer 16$426 USD
Retailer 9$554 USD
Retailer 6$555 USD
Retailer 5$572 USD
Retailer 15$640 USD
Retailer 17$679 USD
Retailer 2$801 USD
Retailer 13$1,060 USD
Retailer 4$1,136 USD
Brilliant Earth$1,250 USD

15 data points across 17 retailers

15 retailers$232 USD to $1,250 USD

A
Cheapest Retailer
-
$232 USD
Final sale: no returns
A
Retailer 2
-
$234 USD
View
A
Retailer 3
-
$284 USD
£224 GBP
View
A
Retailer 4
-
$382 USD
€364 EUR
View
A
Retailer 5
-
$399 USD
View
A
Retailer 6
-
$406 USD
£320 GBP
View
A
Retailer 7
-
$426 USD
View
B+
Retailer 8
-
$555 USD
View
B+
Retailer 9
-
$572 USD
A$880 AUD
View
B+
Retailer 10
-
$640 USD
View
B+
Retailer 11
-
$679 USD
A$1,045 AUD
View
B+
Retailer 12
-
$801 USD
View
B
Retailer 13
-
$1,060 USD
£835 GBP
View
B
Retailer 14
-
$1,136 USD
View
Most Expensive
B
Brilliant Earth
19740795A · Oct 29
$1,250 USD
View
14 more retailers have this diamond
Prices start from $232 USDSave up to $1,018 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
1.20ct Cushion
$232 USD