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Radiant|Lab Grown|IGI

1.54ct E SI1 Radiant Lab Grown Diamond

EX • E/SI1 • IGI LG733543173

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

Certificate IGI LG733543173

Diamond specifications and retailer prices

From $800 NZD
$451 USD
As of October 30, 2026
Save $1,068 NZD (57%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $1,868 NZD at MOH London · As of October 26, 2026
View at MOH London

About this 1.54ct lab-grown radiant diamond

This 1.54ct 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 LG733543173 or 733543173. Listed at 7 retailers as of October 26, 2026, with prices from $800 to $1,868, a $1,068 spread on the same certified stone. MOH London lists it at $1,868. 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

1.54
Carat
E
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle48.2°
Pavilion angle30.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG733543173
Dimensions8.05 × 5.67 × 3.77 mm
L/W Ratio1.42
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.05 mm5.67 mm1.54 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG733543173
Side View
Table 60.0%Crown 48.2°Girdle: STK-THKPavilion 30.8°Culet: NoneDepth 66.5%

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: Oct 30
Current: $1,868 NZD|Low: $664 NZD|High: $1,888 NZD|Avg: $1,102 NZD|+1.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 31, 2026
Retailer 6$800 NZD
Retailer 4$814 NZD
Retailer 7$841 NZD
Retailer 2$861 NZD
Retailer 5$1,054 NZD
Retailer 3$1,588 NZD
MOH London$1,868 NZD

32 data points across 7 retailers

7 retailers$800 NZD to $1,868 NZD

B+
Cheapest Retailer
-
$800 NZD
$451 USD
Retailer 2
-
$814 NZD
€437 EUR
View
Price last confirmed 7 days ago
A
Retailer 3
-
$841 NZD
$474 USD
View
A
Retailer 4
-
$861 NZD
£382 GBP
View
B+
Retailer 5
-
$1,054 NZD
$594 USD
View
Retailer 6
-
$1,588 NZD
$895 USD
View
Price last confirmed 12 days ago
Most Expensive
B
MOH London
LG733543173 · Oct 26
$1,868 NZD
£829 GBP
View
6 more retailers have this diamond
Prices start from $800 NZDSave up to $1,068 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
1.54ct Radiant
$800 NZD