CaratHunter
Plans
Radiant|Lab Grown|IGI

1.05ct E SI1 Radiant Lab Grown Diamond

VG • E/SI1 • IGI LG644487427

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

Certificate IGI LG644487427

Diamond specifications and retailer prices

From $223 AUD
$157 USD
As of October 25, 2026
Save $1,649 AUD (88%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $1,873 AUD at MOH London · As of October 29, 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 very-good cut grade and certified by IGI LG644487427 or 644487427. Listed at 15 retailers as of October 25, 2026, with prices from $223 to $1,873, a $1,649 spread on the same certified stone. MOH London lists it at $1,873. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.05
Carat
E
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle45.1°
Pavilion angle34.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG644487427
Dimensions7.40 × 4.89 × 3.34 mm
L/W Ratio1.51
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.40 mm4.89 mm1.05 ctE / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG644487427
Side View
Table 65.0%Crown 45.1°Girdle: MED-STKPavilion 34.6°Culet: NoneDepth 68.3%

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: $1,873 AUD|Low: $209 AUD|High: $1,885 AUD|Avg: $567 AUD|+0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
October 30, 2026
Retailer 3$209 AUD
Retailer 4$221 AUD
Retailer 8$223 AUD
Retailer 12$291 AUD
Retailer 2$372 AUD
Retailer 7$424 AUD
Retailer 13$426 AUD
Retailer 6$430 AUD
Retailer 11$438 AUD
Retailer 10$662 AUD
Retailer 5$685 AUD
Retailer 9$757 AUD
Retailer 14$840 AUD
MOH London$1,873 AUD

36 data points across 14 retailers

15 retailers$223 AUD to $1,873 AUD

Retailer 1
-
$209 AUD
$147 USD
Price last confirmed 32 days ago
Retailer 2
-
$221 AUD
$155 USD
View
Price last confirmed 32 days ago
A
Retailer 3
-
$223 AUD
$157 USD
View
Retailer 4
-
$291 AUD
£161 GBP
View
Price last confirmed 13 days ago
A
Retailer 5
-
$372 AUD
£206 GBP
View
A
Retailer 6
-
$424 AUD
£235 GBP
View
B+
Retailer 7
-
$426 AUD
$299 USD
View
B+
Retailer 8
-
$430 AUD
$302 USD
View
B+
Retailer 9
-
$438 AUD
€293 EUR
View
Retailer 10
-
$662 AUD
$465 USD
View
Price last confirmed 8 days ago
B+
Retailer 11
-
$685 AUD
$481 USD
View
B
Retailer 12
-
$757 AUD
$532 USD
View
B+
Retailer 13
-
$817 AUD
£452 GBP
View
B
Retailer 14
-
$840 AUD
$590 USD
View
Most Expensive
B
MOH London
LG644487427 · Oct 29
$1,873 AUD
£1,036 GBP
View
14 more retailers have this diamond
Prices start from $223 AUDSave up to $1,649 AUD

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
$223 AUD