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Round|Lab Grown|IGI

1.38ct I SI2 Round Lab Grown Diamond

EX • I/SI2 • IGI LG425064818

Shape and cutting style on the report: Round brilliant

Certificate IGI LG425064818

Diamond specifications and retailer prices

From $993 AUD
As of November 5, 2026
Save $3,515 AUD (78%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $4,508 AUD at MOH London · As of November 5, 2026
View at MOH London

About this 1.38ct lab-grown round diamond

This 1.38ct lab-grown round sits in the one-and-a-quarter to one-and-a-half carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG425064818 or 425064818. Listed at 10 retailers as of November 5, 2026, with prices from $993 to $4,508, a $3,515 spread on the same certified stone. MOH London lists it at $4,508. 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

1.38
Carat
I
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle31.5°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG425064818
Dimensions7.32 × 7.30 × 4.29 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
7.32 mm7.30 mm1.38 ctI / SI2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG425064818
Side View
Table 58.5%Crown 31.5°Girdle: MediumPavilion 40.5°Culet: NoneDepth 58.8%

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: $4,508 AUD|Low: $953 AUD|High: $4,575 AUD|Avg: $2,031 AUD|-1.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 5, 2026
Retailer 5$993 AUD
Retailer 8$1,080 AUD
Retailer 10$1,110 AUD
Retailer 2$1,114 AUD
Retailer 6$1,151 AUD
Retailer 11$1,844 AUD
Retailer 7$1,873 AUD
Retailer 3$2,576 AUD
Retailer 4$2,836 AUD
Retailer 9$3,237 AUD
MOH London$4,508 AUD

15 data points across 11 retailers

10 retailers$993 AUD to $4,508 AUD

A
Cheapest Retailer
-
$993 AUD
A
Retailer 2
-
$1,080 AUD
View
A
Retailer 3
-
$1,110 AUD
View
Final sale: no returns
A
Retailer 4
-
$1,114 AUD
View
Retailer 5
-
$1,151 AUD
View
Price last confirmed 21 days ago
A
Retailer 6
-
$1,151 AUD
View
B
Retailer 7
-
$1,873 AUD
View
B
Retailer 8
-
$2,836 AUD
View
B
Retailer 9
-
$3,237 AUD
View
Most Expensive
B
MOH London
LG425064818 · Nov 5
$4,508 AUD
£2,485 GBP
View
9 more retailers have this diamond
Prices start from $993 AUDSave up to $3,515 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
1.38ct Round
$993 AUD