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Round|Lab Grown|IGI

0.42ct G SI1 Round Lab Grown Diamond

VG • G/SI1 • IGI LG455034095

Shape and cutting style on the report: Round brilliant

Certificate IGI LG455034095

Diamond specifications and retailer prices

From $329 AUD
$231 USD
As of November 1, 2026
Save $1,306 AUD (80%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $1,634 AUD at MOH London · As of November 1, 2026
View at MOH London

About this 0.42ct lab-grown round diamond

This 0.42ct lab-grown round sits in the sub-half-carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG455034095 or 455034095. Listed at 10 retailers as of November 1, 2026, with prices from $329 to $1,634, a $1,306 spread on the same certified stone. MOH London lists it at $1,634. 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

0.42
Carat
G
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle36.6°
Pavilion angle41.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG455034095
Dimensions4.68 × 4.64 × 3.05 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Top View
4.68 mm4.64 mm0.42 ctG / SI1
OriginLab Grown
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG455034095
Side View
Table 57.5%Crown 36.6°Girdle: STK-THKPavilion 41.6°Culet: NoneDepth 65.4%

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: $1,634 AUD|Low: $316 AUD|High: $1,654 AUD|Avg: $665 AUD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 1, 2026
Retailer 5$329 AUD
Retailer 3$356 AUD
Retailer 8$382 AUD
Retailer 6$407 AUD
Retailer 9$584 AUD
Retailer 7$692 AUD
Retailer 2$760 AUD
Retailer 4$786 AUD
MOH London$1,634 AUD

41 data points across 9 retailers

10 retailers$329 AUD to $1,634 AUD

A
Cheapest Retailer
-
$329 AUD
$231 USD
A
Retailer 2
-
$356 AUD
$250 USD
View
B+
Retailer 3
-
$382 AUD
$268 USD
View
Retailer 4
-
$407 AUD
$286 USD
View
Price last confirmed 7 days ago
B+
Retailer 5
-
$407 AUD
$286 USD
View
B
Retailer 6
-
$692 AUD
$486 USD
View
B
Retailer 7
-
$760 AUD
£421 GBP
View
B
Retailer 8
-
$786 AUD
€526 EUR
View
B
Retailer 9
-
$1,311 AUD
$921 USD
View
Most Expensive
B
MOH London
LG455034095 · Nov 1
$1,634 AUD
£904 GBP
View
9 more retailers have this diamond
Prices start from $329 AUDSave up to $1,306 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
0.42ct Round
$329 AUD