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Round|Lab Grown|IGI

0.45ct D SI2 Round Lab Grown Diamond

EX • D/SI2 • IGI LG492136151

Shape and cutting style on the report: Round brilliant

Certificate IGI LG492136151

Diamond specifications and retailer prices

From $370 AUD
As of November 5, 2026
Save $1,106 AUD (75%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $1,849 AUD at MOH London · As of October 29, 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 D colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG492136151 or 492136151. Listed at 9 retailers as of November 5, 2026, with a 299% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
D
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle36°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG492136151
Dimensions4.84 × 4.85 × 3.08 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
4.84 mm4.85 mm0.45 ctD / SI2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG492136151
Side View
Table 56.0%Crown 36°Girdle: MED-STKPavilion 41.1°Culet: NoneDepth 63.7%

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 5
Current: $1,849 AUD|Low: $356 AUD|High: $1,861 AUD|Avg: $799 AUD|+0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 30, 2026
Retailer 4$370 AUD
Retailer 2$400 AUD
Retailer 7$429 AUD
Retailer 5$459 AUD
Retailer 6$764 AUD
Retailer 3$866 AUD
Retailer 8$951 AUD
Retailer 9$960 AUD
MOH London$1,849 AUD

18 data points across 9 retailers

9 retailers$370 AUD to $1,476 AUD

A
Cheapest Retailer
-
$370 AUD
A
Retailer 2
-
$400 AUD
View
B+
Retailer 3
-
$429 AUD
View
Retailer 4
-
$459 AUD
View
Price last confirmed 12 days ago
B+
Retailer 5
-
$459 AUD
View
B
Retailer 6
-
$764 AUD
View
Retailer 7
-
$866 AUD
View
Price last confirmed 8 days ago
B
Retailer 8
-
$1,476 AUD
View
Most Expensive
MOH London
LG492136151 · Oct 29
$1,849 AUD
£1,019 GBP
View
Price last confirmed 8 days ago
8 more retailers have this diamond
Prices start from $370 AUDSave up to $1,106 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
$370 AUD