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Cushion|Lab Grown|IGI

1.50ct F SI1 Cushion Lab Grown Diamond

ID • F/SI1 • IGI LG657466746

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG657466746

Diamond specifications and retailer prices

From $260 SGD
$203 USD
As of November 1, 2026
Save $1,191 SGD (82%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $1,450 SGD at Reve Diamonds · As of November 1, 2026
View at Reve 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 F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG657466746 or 657466746. Listed at 15 retailers as of November 1, 2026, with prices from $260 to $1,450, a $1,191 spread on the same certified stone. Reve Diamonds lists it at $1,450. 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
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle36.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG657466746
Dimensions8.08 × 5.85 × 3.90 mm
L/W Ratio1.38
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.08 mm5.85 mm1.50 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG657466746
Side View
Table 65.0%Crown 35.5°Girdle: MED-VTKPavilion 36.4°Culet: NoneDepth 66.7%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 1
Current: $514 SGD|Low: $260 SGD|High: $1,450 SGD|Avg: $780 SGD|+3.7%
Retailer 1
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
Reve Diamonds
November 2, 2026
Retailer 2$260 SGD
Retailer 7$327 SGD
Retailer 13$370 SGD
Retailer 3$399 SGD
Retailer 9$477 SGD
Retailer 1$514 SGD
Retailer 15$589 SGD
Retailer 5$591 SGD
Retailer 10$705 SGD
Retailer 6$944 SGD
Retailer 4$994 SGD
Retailer 12$1,061 SGD
Retailer 11$1,164 SGD
Retailer 14$1,188 SGD
Retailer 8$1,345 SGD
Reve Diamonds$1,450 SGD

26 data points across 16 retailers

15 retailers$260 SGD to $1,450 SGD

A
Cheapest Retailer
-
$260 SGD
$203 USD
Final sale: no returns
A
Retailer 2
-
$327 SGD
HK$2,000 HKD
View
B+
Retailer 3
-
$399 SGD
$312 USD
View
A
Retailer 4
-
$477 SGD
€355 EUR
View
A
Retailer 5
-
$514 SGD
£317 GBP
View
A
Retailer 6
-
$589 SGD
$461 USD
View
A
Retailer 7
-
$591 SGD
$462 USD
View
B+
Retailer 8
-
$705 SGD
$551 USD
View
B+
Retailer 9
-
$944 SGD
View
B+
Retailer 10
-
$994 SGD
$777 USD
View
B+
Retailer 11
-
$1,061 SGD
$830 USD
View
B+
Retailer 12
-
$1,164 SGD
$910 USD
View
B
Retailer 13
-
$1,188 SGD
$929 USD
View
B+
Retailer 14
-
$1,345 SGD
£828 GBP
View
Most Expensive
B
Reve Diamonds
36585FD7B · Nov 1
$1,450 SGD
$1,134 USD
View
14 more retailers have this diamond
Prices start from $260 SGDSave up to $1,191 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
$260 SGD