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1.50ct J SI1 Round Lab Grown Diamond

EX • J/SI1 • IGI LG492123272

Shape and cutting style on the report: Round brilliant

Certificate IGI LG492123272

Diamond specifications and retailer prices

From $1,060 SGD
As of November 5, 2026
Save $4,452 SGD (81%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $5,512 SGD at MOH London · As of November 5, 2026
View at MOH London

About this 1.5ct lab-grown round diamond

This 1.5ct lab-grown round sits in the one-and-a-half to two carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG492123272 or 492123272. Listed at 12 retailers as of November 5, 2026, with prices from $1,060 to $5,512, a $4,452 spread on the same certified stone. MOH London lists it at $5,512. 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
J
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.2°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG492123272
Dimensions7.39 × 7.35 × 4.53 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
7.39 mm7.35 mm1.50 ctJ / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG492123272
Side View
Table 52.0%Crown 33.2°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 61.5%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: $5,512 SGD|Low: $1,060 SGD|High: $5,601 SGD|Avg: $2,553 SGD|-1.3%
MOH London
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 6, 2026
Retailer 7$1,060 SGD
Retailer 8$1,483 SGD
Retailer 13$1,613 SGD
Retailer 12$1,660 SGD
Retailer 9$1,721 SGD
Retailer 11$1,721 SGD
Retailer 3$1,941 SGD
Retailer 2$2,239 SGD
Retailer 4$2,446 SGD
Retailer 10$2,732 SGD
Retailer 14$3,225 SGD
Retailer 5$3,390 SGD
Retailer 6$4,923 SGD
MOH London$5,512 SGD

43 data points across 14 retailers

12 retailers$1,060 SGD to $5,512 SGD

A
Cheapest Retailer
-
$1,060 SGD
B+
Retailer 2
-
$1,483 SGD
View
B+
Retailer 3
-
$1,613 SGD
View
B+
Retailer 4
-
$1,660 SGD
View
Final sale: no returns
B+
Retailer 5
-
$1,721 SGD
View
Retailer 6
-
$1,721 SGD
View
Price last confirmed 25 days ago
B
Retailer 7
-
$1,941 SGD
View
B+
Retailer 8
-
$2,239 SGD
View
B
Retailer 9
-
$2,732 SGD
View
B
Retailer 10
-
$3,225 SGD
View
B
Retailer 11
-
$3,390 SGD
View
Most Expensive
B
MOH London
LG492123272 · Nov 5
$5,512 SGD
£3,398 GBP
View
11 more retailers have this diamond
Prices start from $1,060 SGDSave up to $4,452 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 Round
$1,060 SGD