CaratHunter
Plans
Round|Lab Grown|IGI

1.39ct I SI2 Round Lab Grown Diamond

ID • I/SI2 • IGI LG425066377

Shape and cutting style on the report: Round brilliant

Certificate IGI LG425066377

Diamond specifications and retailer prices

From $999 AUD
As of November 5, 2026
Save $3,541 AUD (78%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $4,539 AUD at MOH London · As of November 5, 2026
View at MOH London

About this 1.39ct lab-grown round diamond

This 1.39ct 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 LG425066377 or 425066377. Listed at 10 retailers as of November 5, 2026, with prices from $999 to $4,539, a $3,541 spread on the same certified stone. MOH London lists it at $4,539. 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

1.39
Carat
I
Colour
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG425066377
Dimensions7.24 × 7.17 × 4.38 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
undefined
Top View
7.24 mm7.17 mm1.39 ctI / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG425066377
Side View
Table 55.0%Crown 33°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 61.0%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: $4,539 AUD|Low: $960 AUD|High: $4,606 AUD|Avg: $1,924 AUD|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 5, 2026
Retailer 7$999 AUD
Retailer 10$1,087 AUD
Retailer 12$1,119 AUD
Retailer 2$1,157 AUD
Retailer 8$1,159 AUD
Retailer 13$1,159 AUD
Retailer 4$1,176 AUD
Retailer 3$1,854 AUD
Retailer 9$1,884 AUD
Retailer 5$2,594 AUD
Retailer 6$2,856 AUD
Retailer 11$3,258 AUD
MOH London$4,539 AUD

15 data points across 13 retailers

10 retailers$999 AUD to $4,539 AUD

A
Cheapest Retailer
-
$999 AUD
A
Retailer 2
-
$1,087 AUD
View
A
Retailer 3
-
$1,119 AUD
View
Final sale: no returns
A
Retailer 4
-
$1,157 AUD
View
A
Retailer 5
-
$1,159 AUD
View
Retailer 6
-
$1,159 AUD
View
Price last confirmed 25 days ago
B
Retailer 7
-
$1,884 AUD
View
B
Retailer 8
-
$2,856 AUD
View
B
Retailer 9
-
$3,258 AUD
View
Most Expensive
B
MOH London
LG425066377 · Nov 5
$4,539 AUD
£2,502 GBP
View
9 more retailers have this diamond
Prices start from $999 AUDSave up to $3,541 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
1.39ct Round
$999 AUD