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Cushion|Lab Grown|IGI

1.51ct D IF Cushion Lab Grown Diamond

EX • D/IF • IGI LG598394110

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG598394110

Diamond specifications and retailer prices

From $888 SGD
As of November 4, 2026
Save $4,722 SGD (84%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $5,610 SGD at Brilliant Earth · As of November 4, 2026
View at Brilliant Earth

About this 1.51ct lab-grown cushion diamond

This 1.51ct lab-grown cushion sits in the one-and-a-half to two carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG598394110 or 598394110. Listed at 16 retailers as of November 4, 2026, with prices from $888 to $5,610, a $4,722 spread on the same certified stone. Brilliant Earth lists it at $5,610. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
D
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.5°
Pavilion angle36.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG598394110
Dimensions8.07 × 6.05 × 4.09 mm
L/W Ratio1.33
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
8.07 mm6.05 mm1.51 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG598394110
Side View
Table 60.0%Crown 33.5°Girdle: MED-STKPavilion 36.9°Culet: NoneDepth 67.6%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 4
Current: $5,610 SGD|Low: $842 SGD|High: $5,610 SGD|Avg: $1,959 SGD
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 5, 2026
Retailer 12$888 SGD
Retailer 4$933 SGD
Retailer 13$998 SGD
Retailer 3$1,080 SGD
Retailer 5$1,203 SGD
Retailer 10$1,417 SGD
Retailer 6$1,444 SGD
Retailer 9$1,602 SGD
Retailer 8$2,046 SGD
Retailer 11$2,172 SGD
Retailer 7$2,828 SGD
Retailer 2$4,039 SGD
Brilliant Earth$5,610 SGD

43 data points across 13 retailers

16 retailers$888 SGD to $5,610 SGD

A
Cheapest Retailer
-
$888 SGD
Final sale: no returns
A
Retailer 2
-
$1,080 SGD
View
A
Retailer 3
-
$1,203 SGD
View
A
Retailer 4
-
$1,250 SGD
View
A
Retailer 5
-
$1,416 SGD
View
A
Retailer 6
-
$1,417 SGD
View
A
Retailer 7
-
$1,444 SGD
View
A
Retailer 8
-
$1,602 SGD
View
B+
Retailer 9
-
$2,046 SGD
View
B+
Retailer 10
-
$2,172 SGD
View
B+
Retailer 11
-
$2,707 SGD
View
B+
Retailer 12
-
$2,828 SGD
View
B
Retailer 13
-
$3,018 SGD
View
B
Retailer 14
-
$3,085 SGD
View
B
Retailer 15
-
$4,039 SGD
View
Most Expensive
B
Brilliant Earth
11244208A · Nov 4
$5,610 SGD
$4,390 USD
View
15 more retailers have this diamond
Prices start from $888 SGDSave up to $4,722 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
1.51ct Cushion
$888 SGD