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Round|Lab Grown|IGI

1.42ct H SI1 Round Lab Grown Diamond

ID • H/SI1 • IGI LG490177009

Shape and cutting style on the report: Round brilliant

Certificate IGI LG490177009

Diamond specifications and retailer prices

From $1,014 AUD
As of November 5, 2026
Save $4,202 AUD (81%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $5,216 AUD at MOH London · As of November 3, 2026
View at MOH London

About this 1.42ct lab-grown round diamond

This 1.42ct lab-grown round sits in the one-and-a-quarter to one-and-a-half carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG490177009 or 490177009. Listed at 11 retailers as of November 3, 2026, with prices from $1,014 to $5,216, a $4,202 spread on the same certified stone. MOH London lists it at $5,216. 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

1.42
Carat
H
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.4°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG490177009
Dimensions7.21 × 7.17 × 4.46 mm
L/W Ratio1.01
Girdle conditionFaceted
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
7.21 mm7.17 mm1.42 ctH / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG490177009
Side View
Table 53.5%Crown 34.4°Girdle: MediumPavilion 40.2°Culet: NoneDepth 62.1%

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: $5,216 AUD|Low: $1,014 AUD|High: $5,285 AUD|Avg: $2,362 AUD|-1.0%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 3, 2026
Retailer 4$1,014 AUD
Retailer 3$1,326 AUD
Retailer 7$1,484 AUD
Retailer 5$1,537 AUD
Retailer 8$1,786 AUD
Retailer 9$2,263 AUD
Retailer 6$2,463 AUD
Retailer 2$3,421 AUD
MOH London$5,216 AUD

9 data points across 9 retailers

11 retailers$1,014 AUD to $5,216 AUD

A
Cheapest Retailer
-
$1,014 AUD
B+
Retailer 2
-
$1,326 AUD
View
B+
Retailer 3
-
$1,443 AUD
View
B+
Retailer 4
-
$1,484 AUD
View
Final sale: no returns
B+
Retailer 5
-
$1,537 AUD
View
Retailer 6
-
$1,537 AUD
View
Price last confirmed 25 days ago
B+
Retailer 7
-
$1,786 AUD
View
B
Retailer 8
-
$2,463 AUD
View
B
Retailer 9
-
$3,421 AUD
View
B
Retailer 10
-
$4,323 AUD
View
Most Expensive
B
MOH London
LG490177009 · Nov 3
$5,216 AUD
£2,875 GBP
View
10 more retailers have this diamond
Prices start from $1,014 AUDSave up to $4,202 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
1.42ct Round
$1,014 AUD