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Round|Lab Grown|IGI

0.45ct G SI1 Round Lab Grown Diamond

EX • G/SI1 • IGI LG455034330

Shape and cutting style on the report: Round brilliant

Certificate IGI LG455034330

Diamond specifications and retailer prices

From $349 AUD
$245 USD
As of November 1, 2026
Save $1,387 AUD (80%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $1,736 AUD at MOH London · As of November 1, 2026
View at MOH London

About this 0.45ct lab-grown round diamond

This 0.45ct lab-grown round sits in the sub-half-carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG455034330 or 455034330. Listed at 10 retailers as of November 1, 2026, with prices from $349 to $1,736, a $1,387 spread on the same certified stone. MOH London lists it at $1,736. 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

0.45
Carat
G
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
Crown angle36.2°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG455034330
Dimensions4.90 × 4.94 × 3.00 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
Blue Nuance
Top View
4.90 mm4.94 mm0.45 ctG / SI1
OriginLab Grown
CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateIGI LG455034330
Side View
Table 59.0%Crown 36.2°Girdle: THN-MEDPavilion 40.4°Culet: NoneDepth 61.0%

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: Nov 1
Current: $1,736 AUD|Low: $336 AUD|High: $1,757 AUD|Avg: $705 AUD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 1, 2026
Retailer 5$349 AUD
Retailer 3$384 AUD
Retailer 8$406 AUD
Retailer 6$433 AUD
Retailer 9$621 AUD
Retailer 7$727 AUD
Retailer 2$821 AUD
Retailer 4$827 AUD
MOH London$1,736 AUD

41 data points across 9 retailers

10 retailers$349 AUD to $1,736 AUD

A
Cheapest Retailer
-
$349 AUD
$245 USD
A
Retailer 2
-
$384 AUD
$270 USD
View
A
Retailer 3
-
$406 AUD
$285 USD
View
Retailer 4
-
$433 AUD
$304 USD
View
Price last confirmed 7 days ago
B+
Retailer 5
-
$433 AUD
$304 USD
View
B+
Retailer 6
-
$727 AUD
$511 USD
View
B
Retailer 7
-
$821 AUD
£454 GBP
View
B
Retailer 8
-
$827 AUD
€553 EUR
View
B
Retailer 9
-
$1,392 AUD
$978 USD
View
Most Expensive
B
MOH London
LG455034330 · Nov 1
$1,736 AUD
£960 GBP
View
9 more retailers have this diamond
Prices start from $349 AUDSave up to $1,387 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
0.45ct Round
$349 AUD