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Radiant|Lab Grown|IGI

1.50ct E SI1 Radiant Lab Grown Diamond

EX • E/SI1 • IGI LG647447808

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

Certificate IGI LG647447808

Diamond specifications and retailer prices

From $268 SGD
$209 USD
As of October 25, 2026
Save $1,283 SGD (83%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $1,551 SGD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.5ct lab-grown radiant diamond

This 1.5ct lab-grown radiant sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG647447808 or 647447808. Listed at 16 retailers as of October 25, 2026, with prices from $268 to $1,551, a $1,283 spread on the same certified stone. Brilliant Earth lists it at $1,551. 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

1.50
Carat
E
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.6°
Pavilion angle35.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG647447808
Dimensions7.93 × 5.74 × 3.82 mm
L/W Ratio1.38
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.93 mm5.74 mm1.50 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG647447808
Side View
Table 66.0%Crown 42.6°Girdle: MediumPavilion 35.3°Culet: NoneDepth 66.6%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 25
Current: $1,551 SGD|Low: $251 SGD|High: $1,653 SGD|Avg: $673 SGD|-6.2%
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
Retailer 14
October 30, 2026
Retailer 14$251 SGD
Retailer 4$264 SGD
Retailer 8$268 SGD
Retailer 11$345 SGD
Retailer 2$476 SGD
Retailer 12$481 SGD
Retailer 3$500 SGD
Retailer 10$507 SGD
Retailer 6$561 SGD
Retailer 5$699 SGD
Retailer 9$910 SGD
Retailer 13$1,109 SGD
Retailer 7$1,260 SGD
Brilliant Earth$1,551 SGD

38 data points across 14 retailers

16 retailers$268 SGD to $1,551 SGD

Retailer 1
-
$251 SGD
$196 USD
Price last confirmed 32 days ago
Retailer 2
-
$264 SGD
$206 USD
View
Price last confirmed 32 days ago
Retailer 3
-
$268 SGD
$209 USD
View
Price last confirmed 18 days ago
A
Retailer 4
-
$268 SGD
$209 USD
View
Retailer 5
-
$345 SGD
£212 GBP
View
Price last confirmed 13 days ago
A
Retailer 6
-
$476 SGD
£292 GBP
View
B+
Retailer 7
-
$481 SGD
$375 USD
View
Retailer 8
-
$500 SGD
£307 GBP
View
Price last confirmed 21 days ago
A
Retailer 9
-
$507 SGD
€377 EUR
View
B+
Retailer 10
-
$561 SGD
$438 USD
View
B+
Retailer 11
-
$699 SGD
$545 USD
View
B
Retailer 12
-
$910 SGD
$710 USD
View
B
Retailer 13
-
$940 SGD
£578 GBP
View
Retailer 14
-
$1,109 SGD
$865 USD
View
Price last confirmed 8 days ago
B
Retailer 15
-
$1,260 SGD
£774 GBP
View
Most Expensive
B
Brilliant Earth
11455293A · Oct 29
$1,551 SGD
$1,210 USD
View
15 more retailers have this diamond
Prices start from $268 SGDSave up to $1,283 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 Radiant
$268 SGD