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Cushion|Lab Grown|IGI

1.41ct D SI1 Cushion Lab Grown Diamond

ID • D/SI1 • IGI LG515211276

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG515211276

Diamond specifications and retailer prices

From $199 USD
As of October 30, 2026
Save $881 USD (82%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $1,080 USD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.41ct lab-grown cushion diamond

This 1.41ct lab-grown cushion sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG515211276 or 515211276. Listed at 13 retailers as of October 29, 2026, with prices from $199 to $1,080, a $881 spread on the same certified stone. Brilliant Earth lists it at $1,080. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.41
Carat
D
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.7°
Pavilion angle37.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG515211276
Dimensions6.58 × 6.45 × 4.22 mm
L/W Ratio1.02
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
6.58 mm6.45 mm1.41 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG515211276
Side View
Table 65.0%Crown 33.7°Girdle: MED-VTKPavilion 37.9°Culet: NoneDepth 65.4%

Caratlytics Score

How it works →
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 30
Current: $1,080 USD|Low: $199 USD|High: $1,120 USD|Avg: $560 USD|-3.6%
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
October 30, 2026
Retailer 13$199 USD
Retailer 12$221 USD
Retailer 11$243 USD
Retailer 6$382 USD
Retailer 10$391 USD
Retailer 2$395 USD
Retailer 9$411 USD
Retailer 3$476 USD
Retailer 4$572 USD
Retailer 5$721 USD
Retailer 8$880 USD
Retailer 7$1,033 USD
Brilliant Earth$1,080 USD

44 data points across 13 retailers

13 retailers$199 USD to $1,080 USD

A
Cheapest Retailer
-
$199 USD
Final sale: no returns
A
Retailer 2
-
$221 USD
View
A
Retailer 3
-
$243 USD
HK$1,900 HKD
View
A
Retailer 4
-
$382 USD
€364 EUR
View
B+
Retailer 5
-
$391 USD
View
A
Retailer 6
-
$395 USD
£311 GBP
View
Retailer 7
-
$411 USD
£324 GBP
View
Price last confirmed 16 days ago
A
Retailer 8
-
$476 USD
View
B+
Retailer 9
-
$572 USD
View
B
Retailer 10
-
$721 USD
SGD 974 SGD
View
Retailer 11
-
$880 USD
View
Price last confirmed 9 days ago
B
Retailer 12
-
$1,033 USD
£813 GBP
View
Most Expensive
B
Brilliant Earth
19056475A · Oct 29
$1,080 USD
View
12 more retailers have this diamond
Prices start from $199 USDSave up to $881 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
1.41ct Cushion
$199 USD