Radiant|Lab Grown|IGI

1.51ct D SI1 Radiant Lab Grown Diamond

ID • D/SI1 • IGI LG732564144

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG732564144

Diamond specifications and retailer prices

From $446 SGD
As of November 6, 2026
Save $1,130 SGD (72%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $1,576 SGD at Brilliant Earth · As of November 6, 2026
View at Brilliant Earth

About this 1.51ct lab-grown radiant diamond

This 1.51ct lab-grown radiant sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG732564144 or 732564144. Listed at 16 retailers as of November 6, 2026, with prices from $446 to $1,576, a $1,130 spread on the same certified stone. Brilliant Earth lists it at $1,576. 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

1.51
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.1°
Pavilion angle33.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG732564144
Dimensions8.20 × 5.71 × 3.76 mm
L/W Ratio1.44
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.20 mm5.71 mm1.51 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG732564144
Side View
Table 68.0%Crown 42.1°Girdle: MED-STKPavilion 33.9°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 6
Current: $1,576 SGD|Low: $235 SGD|High: $1,871 SGD|Avg: $898 SGD|-4.7%
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 6, 2026
Retailer 4$235 SGD
Retailer 2$446 SGD
Retailer 9$460 SGD
Retailer 11$472 SGD
Retailer 8$473 SGD
Retailer 6$628 SGD
Retailer 12$677 SGD
Retailer 3$693 SGD
Retailer 13$911 SGD
Retailer 10$1,225 SGD
Retailer 7$1,301 SGD
Retailer 5$1,385 SGD
Brilliant Earth$1,576 SGD

35 data points across 13 retailers

16 retailers$446 SGD to $1,576 SGD

Retailer 1
-
$299 SGD
Price last confirmed 30 days ago
Retailer 2
-
$346 SGD
View
Price last confirmed 41 days ago
Retailer 3
-
$370 SGD
View
Price last confirmed 35 days ago
A
Retailer 4
-
$446 SGD
View
Retailer 5
-
$460 SGD
View
Price last confirmed 11 days ago
Retailer 6
-
$472 SGD
View
Price last confirmed 13 days ago
Retailer 7
-
$473 SGD
View
Price last confirmed 10 days ago
A
Retailer 8
-
$628 SGD
View
A
Retailer 9
-
$677 SGD
View
Retailer 10
-
$693 SGD
View
Price last confirmed 12 days ago
Retailer 11
-
$911 SGD
View
Price last confirmed 11 days ago
Retailer 12
-
$1,192 SGD
View
Price last confirmed 38 days ago
Retailer 13
-
$1,225 SGD
View
Price last confirmed 13 days ago
Retailer 14
-
$1,301 SGD
View
Price last confirmed 10 days ago
Retailer 15
-
$1,385 SGD
View
Price last confirmed 13 days ago
Most Expensive
B
Brilliant Earth
15840212A · Nov 6
$1,576 SGD
$1,230 USD
View
15 more retailers have this diamond
Prices start from $446 SGDSave up to $1,130 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 Radiant
$446 SGD