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Radiant|Lab Grown|IGI

1.59ct E SI1 Radiant Lab Grown Diamond

EX • E/SI1 • IGI LG761566173

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

Certificate IGI LG761566173

Diamond specifications and retailer prices

From $468 NZD
$263 USD
As of October 27, 2026
Save $1,863 NZD (80%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $2,331 NZD at MOH London · As of October 26, 2026
View at MOH London

About this 1.59ct lab-grown radiant diamond

This 1.59ct 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 LG761566173 or 761566173. Listed at 7 retailers as of October 26, 2026, with prices from $468 to $2,331, a $1,863 spread on the same certified stone. MOH London lists it at $2,331. 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

1.59
Carat
E
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle45.8°
Pavilion angle34.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG761566173
Dimensions8.05 × 5.72 × 3.89 mm
L/W Ratio1.41
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.05 mm5.72 mm1.59 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG761566173
Side View
Table 64.0%Crown 45.8°Girdle: MED-STKPavilion 34.6°Culet: NoneDepth 68.0%

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: $2,331 NZD|Low: $450 NZD|High: $2,356 NZD|Avg: $1,360 NZD|+0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 28, 2026
Retailer 4$468 NZD
Retailer 7$543 NZD
Retailer 6$969 NZD
Retailer 2$970 NZD
Retailer 10$1,116 NZD
Retailer 8$1,195 NZD
Retailer 9$1,558 NZD
Retailer 3$1,786 NZD
Retailer 5$1,868 NZD
MOH London$2,331 NZD

12 data points across 10 retailers

7 retailers$468 NZD to $2,331 NZD

A
Cheapest Retailer
-
$468 NZD
$263 USD
A
Retailer 2
-
$543 NZD
$305 USD
View
B+
Retailer 3
-
$969 NZD
$544 USD
View
A
Retailer 4
-
$970 NZD
$545 USD
View
B
Retailer 5
-
$1,786 NZD
$1,003 USD
View
B
Retailer 6
-
$1,868 NZD
$1,049 USD
View
Most Expensive
B
MOH London
LG761566173 · Oct 26
$2,331 NZD
£1,031 GBP
View
6 more retailers have this diamond
Prices start from $468 NZDSave up to $1,863 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
1.59ct Radiant
$468 NZD