CaratHunter
Plans
Radiant|Lab Grown|IGI

1.05ct E SI1 Radiant Lab Grown Diamond

ID • E/SI1 • IGI LG644499133

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

Certificate IGI LG644499133

Diamond specifications and retailer prices

From $339 NZD
$191 USD
As of October 25, 2026
Save $1,245 NZD (79%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $1,584 NZD at MOH London · As of October 25, 2026
View at MOH London

About this 1.05ct lab-grown radiant diamond

This 1.05ct lab-grown radiant sits in the classic one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG644499133 or 644499133. Listed at 8 retailers as of October 25, 2026, with prices from $339 to $1,584, a $1,245 spread on the same certified stone. MOH London lists it at $1,584. 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

1.05
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.8°
Pavilion angle39.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG644499133
Dimensions5.73 × 5.72 × 3.88 mm
L/W Ratio1.00
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
5.73 mm5.72 mm1.05 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG644499133
Side View
Table 64.0%Crown 41.8°Girdle: MediumPavilion 39.1°Culet: NoneDepth 67.8%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 25
Current: $1,584 NZD|Low: $339 NZD|High: $2,490 NZD|Avg: $893 NZD|-35.7%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 28, 2026
Retailer 3$339 NZD
Retailer 5$441 NZD
Retailer 4$576 NZD
Retailer 7$617 NZD
Retailer 2$643 NZD
Retailer 9$849 NZD
Retailer 6$907 NZD
Retailer 8$1,047 NZD
MOH London$1,584 NZD

23 data points across 9 retailers

8 retailers$339 NZD to $1,584 NZD

A
Cheapest Retailer
-
$339 NZD
$191 USD
Retailer 2
-
$441 NZD
£196 GBP
View
Price last confirmed 13 days ago
Retailer 3
-
$576 NZD
€309 EUR
View
Price last confirmed 7 days ago
B+
Retailer 4
-
$617 NZD
$348 USD
View
A
Retailer 5
-
$643 NZD
£285 GBP
View
B+
Retailer 6
-
$907 NZD
$511 USD
View
B
Retailer 7
-
$1,233 NZD
£547 GBP
View
Most Expensive
B
MOH London
LG644499133 · Oct 25
$1,584 NZD
£703 GBP
View
7 more retailers have this diamond
Prices start from $339 NZDSave up to $1,245 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
1.05ct Radiant
$339 NZD