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Cushion|Lab Grown|IGI

1.50ct E IF Cushion Lab Grown Diamond

EX • E/IF • IGI LG798603812

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG798603812

Diamond specifications and retailer prices

From $621 SGD
$486 USD
As of October 30, 2026
Save $2,934 SGD (83%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $3,556 SGD at Queensmith · As of October 27, 2026
View at Queensmith

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 IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG798603812 or 798603812. Listed at 19 retailers as of October 27, 2026, with prices from $621 to $3,556, a $2,934 spread on the same certified stone. Queensmith lists it at $3,556. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.50
Carat
E
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.4°
Pavilion angle34.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG798603812
Dimensions7.70 × 6.02 × 3.86 mm
L/W Ratio1.28
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
7.70 mm6.02 mm1.50 ctE / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG798603812
Side View
Table 62.0%Crown 34.4°Girdle: MED-STKPavilion 34.9°Culet: NoneDepth 64.1%

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: $1,137 SGD|Low: $621 SGD|High: $3,746 SGD|Avg: $1,686 SGD|-8.0%
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
Retailer 16
Retailer 17
November 1, 2026
Retailer 9$621 SGD
Retailer 7$689 SGD
Retailer 8$923 SGD
Retailer 15$927 SGD
Retailer 10$1,050 SGD
Retailer 2$1,089 SGD
Retailer 1$1,137 SGD
Retailer 14$1,184 SGD
Retailer 4$1,344 SGD
Retailer 13$1,604 SGD
Retailer 17$1,664 SGD
Retailer 11$1,956 SGD
Retailer 6$2,255 SGD
Retailer 3$2,482 SGD
Retailer 16$2,533 SGD
Retailer 5$2,577 SGD
Retailer 12$3,094 SGD

40 data points across 17 retailers

19 retailers$621 SGD to $3,556 SGD

A
Cheapest Retailer
-
$621 SGD
$486 USD
Final sale: no returns
A
Retailer 2
-
$689 SGD
$539 USD
View
A
Retailer 3
-
$923 SGD
$722 USD
View
A
Retailer 4
-
$927 SGD
$725 USD
View
A
Retailer 5
-
$1,050 SGD
€782 EUR
View
A
Retailer 6
-
$1,089 SGD
$852 USD
View
A
Retailer 7
-
$1,137 SGD
£700 GBP
View
A
Retailer 8
-
$1,184 SGD
ZAR 14,958 ZAR
View
A
Retailer 9
-
$1,344 SGD
$1,051 USD
View
A
Retailer 10
-
$1,604 SGD
A$1,930 AUD
View
A
Retailer 11
-
$1,664 SGD
$1,302 USD
View
B+
Retailer 12
-
$1,956 SGD
A$2,354 AUD
View
B+
Retailer 13
-
$2,148 SGD
$1,680 USD
View
B+
Retailer 14
-
$2,255 SGD
$1,764 USD
View
B+
Retailer 15
-
$2,482 SGD
$1,942 USD
View
B+
Retailer 16
-
$2,533 SGD
£1,560 GBP
View
B+
Retailer 17
-
$2,577 SGD
$2,016 USD
View
B
Retailer 18
-
$3,094 SGD
$2,420 USD
View
Most Expensive
B
Queensmith
LG798603812 · Oct 27
$3,556 SGD
£2,190 GBP
View
18 more retailers have this diamond
Prices start from $621 SGDSave up to $2,934 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
$621 SGD