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Cushion|Lab Grown|IGI

1.54ct D IF Cushion Lab Grown Diamond

ID • D/IF • IGI LG816673339

Shape and cutting style on the report: Square cushion modified brilliant

Certificate IGI LG816673339

Diamond specifications and retailer prices

From $705 SGD
As of November 4, 2026
Save $2,547 SGD (78%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $5,891 SGD at Brilliant Earth · As of September 28, 2026
View at Brilliant Earth

About this 1.54ct lab-grown cushion diamond

This 1.54ct 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 LG816673339 or 816673339. Listed at 16 retailers as of November 4, 2026, with a 361% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.54
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.7°
Pavilion angle37.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG816673339
Dimensions6.81 × 6.63 × 4.36 mm
L/W Ratio1.03
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
6.81 mm6.63 mm1.54 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG816673339
Side View
Table 61.0%Crown 36.7°Girdle: STK-VTKPavilion 37.9°Culet: NoneDepth 65.8%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 4
Current: $3,252 SGD|Low: $705 SGD|High: $3,298 SGD|Avg: $1,881 SGD|-0.2%
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
November 5, 2026
Retailer 14$705 SGD
Retailer 8$823 SGD
Retailer 13$939 SGD
Retailer 4$1,080 SGD
Retailer 9$1,169 SGD
Retailer 7$1,286 SGD
Retailer 10$1,347 SGD
Retailer 5$1,420 SGD
Retailer 12$1,818 SGD
Retailer 6$2,544 SGD
Retailer 3$2,719 SGD
Retailer 2$2,921 SGD
Retailer 11$3,160 SGD
Retailer 1$3,252 SGD

43 data points across 14 retailers

16 retailers$705 SGD to $3,252 SGD

A
Cheapest Retailer
-
$705 SGD
Final sale: no returns
A
Retailer 2
-
$823 SGD
View
A
Retailer 3
-
$939 SGD
View
A
Retailer 4
-
$1,048 SGD
View
A
Retailer 5
-
$1,080 SGD
View
A
Retailer 6
-
$1,169 SGD
View
A
Retailer 7
-
$1,286 SGD
View
A
Retailer 8
-
$1,347 SGD
View
A
Retailer 9
-
$1,420 SGD
View
A
Retailer 10
-
$1,818 SGD
View
B+
Retailer 11
-
$2,544 SGD
View
B+
Retailer 12
-
$2,719 SGD
View
B+
Retailer 13
-
$2,921 SGD
View
B+
Retailer 14
-
$3,160 SGD
View
B+
Retailer 15
-
$3,252 SGD
View
Most Expensive
Brilliant Earth
20907181A · Sep 28
$5,891 SGD
$4,610 USD
View
Price last confirmed 37 days ago
15 more retailers have this diamond
Prices start from $705 SGDSave up to $2,547 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
1.54ct Cushion
$705 SGD