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Radiant|Lab Grown|IGI

1.50ct I SI2 Radiant Lab Grown Diamond

ID • I/SI2 • IGI LG499191895

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

Certificate IGI LG499191895

Diamond specifications and retailer prices

From $1,515 NZD
As of November 6, 2026
Save $5,978 NZD (80%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $7,494 NZD at MOH London · As of November 3, 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 SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG499191895 or 499191895. Listed at 9 retailers as of November 3, 2026, with prices from $1,515 to $7,494, a $5,978 spread on the same certified stone. MOH London lists it at $7,494. 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
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.3°
Pavilion angle32.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG499191895
Dimensions7.64 × 5.56 × 4.03 mm
L/W Ratio1.37
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
7.64 mm5.56 mm1.50 ctI / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG499191895
Side View
Table 62.0%Crown 40.3°Girdle: Slightly ThickPavilion 32.8°Culet: NoneDepth 72.5%

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: Nov 6
Current: $7,494 NZD|Low: $1,515 NZD|High: $7,595 NZD|Avg: $3,623 NZD|-1.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 1, 2026
Retailer 2$1,515 NZD
Retailer 3$2,011 NZD
Retailer 7$2,188 NZD
Retailer 4$2,332 NZD
Retailer 9$3,337 NZD
Retailer 5$3,711 NZD
Retailer 6$4,373 NZD
Retailer 8$4,732 NZD
MOH London$7,494 NZD

16 data points across 9 retailers

9 retailers$1,515 NZD to $7,494 NZD

A
Cheapest Retailer
-
$1,515 NZD
B+
Retailer 2
-
$2,011 NZD
View
B+
Retailer 3
-
$2,188 NZD
View
Retailer 4
-
$2,332 NZD
View
Price last confirmed 26 days ago
B+
Retailer 5
-
$2,332 NZD
View
B
Retailer 6
-
$3,711 NZD
View
B
Retailer 7
-
$4,373 NZD
View
B
Retailer 8
-
$4,732 NZD
View
Most Expensive
B
MOH London
LG499191895 · Nov 3
$7,494 NZD
£3,271 GBP
View
8 more retailers have this diamond
Prices start from $1,515 NZDSave up to $5,978 NZD

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
$1,515 NZD