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Radiant|Lab Grown|IGI

1.50ct I SI1 Radiant Lab Grown Diamond

ID • I/SI1 • IGI LG514266066

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

Certificate IGI LG514266066

Diamond specifications and retailer prices

From $1,662 SGD
$1,296 USD
As of October 27, 2026
Save $4,563 SGD (73%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $6,225 SGD at MOH London · As of October 29, 2026
View at MOH London

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 I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG514266066 or 514266066. Listed at 10 retailers as of October 27, 2026, with prices from $1,662 to $6,225, a $4,563 spread on the same certified stone. MOH London lists it at $6,225. 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
I
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.5°
Pavilion angle29.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG514266066
Dimensions7.93 × 5.62 × 3.64 mm
L/W Ratio1.41
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
7.93 mm5.62 mm1.50 ctI / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG514266066
Side View
Table 69.0%Crown 38.5°Girdle: ThickPavilion 29.3°Culet: NoneDepth 64.8%

Caratlytics Score

How it works →
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: Oct 27
Current: $6,225 SGD|Low: $1,595 SGD|High: $6,275 SGD|Avg: $2,975 SGD|+0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 29, 2026
Retailer 2$1,662 SGD
Retailer 3$1,705 SGD
Retailer 4$1,927 SGD
Retailer 6$2,148 SGD
Retailer 8$2,657 SGD
Retailer 5$3,050 SGD
Retailer 7$3,592 SGD
MOH London$6,225 SGD

13 data points across 8 retailers

10 retailers$1,662 SGD to $6,225 SGD

A
Cheapest Retailer
-
$1,662 SGD
$1,296 USD
A
Retailer 2
-
$1,705 SGD
$1,330 USD
View
B+
Retailer 3
-
$1,808 SGD
$1,410 USD
View
B+
Retailer 4
-
$1,927 SGD
$1,503 USD
View
Price last confirmed 16 days ago
B+
Retailer 5
-
$1,927 SGD
$1,503 USD
View
B+
Retailer 6
-
$2,148 SGD
$1,675 USD
View
B
Retailer 7
-
$3,050 SGD
$2,379 USD
View
B
Retailer 8
-
$3,592 SGD
$2,802 USD
View
B
Retailer 9
-
$3,612 SGD
$2,817 USD
View
Most Expensive
B
MOH London
LG514266066 · Oct 29
$6,225 SGD
£3,823 GBP
View
9 more retailers have this diamond
Prices start from $1,662 SGDSave up to $4,563 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
$1,662 SGD