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Cushion|Lab Grown|IGI

1.50ct E SI1 Cushion Lab Grown Diamond

ID • E/SI1 • IGI LG492129101

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG492129101

Diamond specifications and retailer prices

From $404 SGD
As of November 6, 2026
Save $2,800 SGD (87%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $3,204 SGD at Do Amore Diamonds · As of November 6, 2026
View at Do Amore Diamonds

About this 1.5ct lab-grown cushion diamond

This 1.5ct lab-grown cushion sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG492129101 or 492129101. Listed at 13 retailers as of November 6, 2026, with prices from $404 to $3,204, a $2,800 spread on the same certified stone. Do Amore Diamonds lists it at $3,204. 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

1.50
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.3°
Pavilion angle39.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG492129101
Dimensions7.22 × 6.40 × 4.20 mm
L/W Ratio1.13
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
7.22 mm6.40 mm1.50 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG492129101
Side View
Table 61.5%Crown 32.3°Girdle: Slightly ThickPavilion 39.4°Culet: NoneDepth 65.6%

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: Nov 6
Current: $3,204 SGD|Low: $349 SGD|High: $3,204 SGD|Avg: $1,221 SGD
Do Amore Diamonds
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 7, 2026
Retailer 4$404 SGD
Retailer 11$472 SGD
Retailer 12$600 SGD
Retailer 13$647 SGD
Retailer 7$871 SGD
Retailer 10$878 SGD
Retailer 2$991 SGD
Retailer 9$1,383 SGD
Retailer 3$1,798 SGD
Retailer 6$1,933 SGD
Retailer 8$1,975 SGD
Retailer 5$2,230 SGD
Do Amore Diamonds$3,204 SGD

43 data points across 13 retailers

13 retailers$404 SGD to $3,204 SGD

A
Cheapest Retailer
-
$404 SGD
Final sale: no returns
A
Retailer 2
-
$472 SGD
View
A
Retailer 3
-
$600 SGD
View
A
Retailer 4
-
$647 SGD
View
B+
Retailer 5
-
$871 SGD
View
B+
Retailer 6
-
$878 SGD
View
B+
Retailer 7
-
$991 SGD
View
B
Retailer 8
-
$1,237 SGD
View
B
Retailer 9
-
$1,383 SGD
View
B
Retailer 10
-
$1,798 SGD
View
B
Retailer 11
-
$1,933 SGD
View
B
Retailer 12
-
$1,975 SGD
View
Most Expensive
B
Do Amore Diamonds
27-2F026FEA7 · Nov 6
$3,204 SGD
$2,500 USD
View
12 more retailers have this diamond
Prices start from $404 SGDSave up to $2,800 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
1.50ct Cushion
$404 SGD