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Cushion|Lab Grown|IGI

1.51ct D IF Cushion Lab Grown Diamond

ID • D/IF • IGI LG825661104

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG825661104

Diamond specifications and retailer prices

From $599 SGD
As of November 4, 2026
Save $3,043 SGD (84%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $3,642 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 LG825661104 or 825661104. Listed at 17 retailers as of November 4, 2026, with prices from $599 to $3,642, a $3,043 spread on the same certified stone. Brilliant Earth lists it at $3,642. 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
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle32.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG825661104
Dimensions8.63 × 5.81 × 3.73 mm
L/W Ratio1.49
Girdle conditionFaceted
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
8.63 mm5.81 mm1.51 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG825661104
Side View
Table 60.0%Crown 34°Girdle: STK-THKPavilion 32.9°Culet: NoneDepth 64.2%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 4
Current: $3,642 SGD|Low: $569 SGD|High: $4,307 SGD|Avg: $1,654 SGD|-15.4%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 5, 2026
Retailer 4$569 SGD
Retailer 5$599 SGD
Retailer 3$863 SGD
Retailer 2$951 SGD
Retailer 9$980 SGD
Retailer 11$1,141 SGD
Retailer 6$1,335 SGD
Retailer 8$1,434 SGD
Retailer 7$1,963 SGD
Retailer 10$2,222 SGD
Retailer 12$3,354 SGD
Brilliant Earth$3,642 SGD

34 data points across 12 retailers

17 retailers$599 SGD to $3,642 SGD

Retailer 1
-
$569 SGD
Price last confirmed 11 days ago
A
Retailer 2
-
$599 SGD
View
A
Retailer 3
-
$863 SGD
View
A
Retailer 4
-
$911 SGD
View
A
Retailer 5
-
$951 SGD
View
A
Retailer 6
-
$980 SGD
View
A
Retailer 7
-
$1,141 SGD
View
A
Retailer 8
-
$1,315 SGD
View
A
Retailer 9
-
$1,335 SGD
View
A
Retailer 10
-
$1,434 SGD
View
B+
Retailer 11
-
$1,880 SGD
View
B+
Retailer 12
-
$1,963 SGD
View
B+
Retailer 13
-
$2,222 SGD
View
B+
Retailer 14
-
$2,371 SGD
View
B
Retailer 15
-
$3,227 SGD
View
Retailer 16
-
$3,354 SGD
View
Price last confirmed 17 days ago
Most Expensive
B
Brilliant Earth
21612279A · Nov 4
$3,642 SGD
$2,850 USD
View
16 more retailers have this diamond
Prices start from $599 SGDSave up to $3,043 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
$599 SGD