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Radiant|Lab Grown|IGI

1.05ct E SI1 Radiant Lab Grown Diamond

GD • E/SI1 • IGI LG597376840

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

Certificate IGI LG597376840

Diamond specifications and retailer prices

From $371 AUD
£205 GBP
As of October 29, 2026
Save $1,495 AUD (80%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $1,866 AUD at MOH London · As of October 26, 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 standard cut grade and certified by IGI LG597376840 or 597376840. Listed at 12 retailers as of October 26, 2026, with prices from $371 to $1,866, a $1,495 spread on the same certified stone. MOH London lists it at $1,866. 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
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.6°
Pavilion angle35.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG597376840
Dimensions7.33 × 5.03 × 3.38 mm
L/W Ratio1.46
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
7.33 mm5.03 mm1.05 ctE / SI1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG597376840
Side View
Table 64.0%Crown 43.6°Girdle: MediumPavilion 35.4°Culet: NoneDepth 67.2%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: $1,866 AUD|Low: $202 AUD|High: $1,885 AUD|Avg: $634 AUD|+0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 29, 2026
Retailer 9$202 AUD
Retailer 2$371 AUD
Retailer 4$424 AUD
Retailer 7$426 AUD
Retailer 11$430 AUD
Retailer 6$438 AUD
Retailer 3$644 AUD
Retailer 10$685 AUD
Retailer 5$757 AUD
Retailer 8$840 AUD
MOH London$1,866 AUD

34 data points across 11 retailers

12 retailers$371 AUD to $1,866 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
B+
Retailer 3
-
$371 AUD
£205 GBP
View
B+
Retailer 4
-
$424 AUD
£235 GBP
View
B
Retailer 5
-
$426 AUD
$299 USD
View
B+
Retailer 6
-
$430 AUD
$302 USD
View
B+
Retailer 7
-
$438 AUD
€293 EUR
View
B+
Retailer 8
-
$685 AUD
$481 USD
View
B
Retailer 9
-
$757 AUD
$532 USD
View
B
Retailer 10
-
$817 AUD
£452 GBP
View
B
Retailer 11
-
$840 AUD
$590 USD
View
Most Expensive
B
MOH London
LG597376840 · Oct 26
$1,866 AUD
£1,032 GBP
View
11 more retailers have this diamond
Prices start from $371 AUDSave up to $1,495 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.

B+
1.05ct Radiant
$371 AUD