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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 $254 SGD
$199 USD
As of October 30, 2026
Save $1,126 SGD (82%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $1,381 SGD at Brilliant Earth · As of October 31, 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 30, 2026, with prices from $254 to $1,381, a $1,126 spread on the same certified stone. Brilliant Earth lists it at $1,381. 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
Colour
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

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 30
Current: $1,381 SGD|Low: $254 SGD|High: $1,432 SGD|Avg: $706 SGD|-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
November 1, 2026
Retailer 13$254 SGD
Retailer 12$283 SGD
Retailer 11$311 SGD
Retailer 7$485 SGD
Retailer 10$500 SGD
Retailer 6$507 SGD
Retailer 9$526 SGD
Retailer 3$609 SGD
Retailer 4$731 SGD
Retailer 5$921 SGD
Retailer 8$1,125 SGD
Retailer 2$1,318 SGD
Brilliant Earth$1,381 SGD

44 data points across 13 retailers

13 retailers$254 SGD to $1,381 SGD

A
Cheapest Retailer
-
$254 SGD
$199 USD
Final sale: no returns
Retailer 2
-
$283 SGD
$221 USD
View
Price last confirmed 7 days ago
A
Retailer 3
-
$311 SGD
HK$1,900 HKD
View
A
Retailer 4
-
$485 SGD
€361 EUR
View
B+
Retailer 5
-
$500 SGD
$391 USD
View
A
Retailer 6
-
$507 SGD
£312 GBP
View
Retailer 7
-
$526 SGD
£324 GBP
View
Price last confirmed 18 days ago
A
Retailer 8
-
$609 SGD
$476 USD
View
B+
Retailer 9
-
$731 SGD
$572 USD
View
B
Retailer 10
-
$921 SGD
View
Retailer 11
-
$1,125 SGD
$880 USD
View
Price last confirmed 11 days ago
B
Retailer 12
-
$1,318 SGD
£812 GBP
View
Most Expensive
B
Brilliant Earth
19056475A · Oct 31
$1,381 SGD
$1,080 USD
View
12 more retailers have this diamond
Prices start from $254 SGDSave up to $1,126 SGD

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
$254 SGD