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Round|Lab Grown|IGI

1.39ct D SI1 Round Lab Grown Diamond

ID • D/SI1 • IGI LG662485838

Shape and cutting style on the report: Round brilliant

Certificate IGI LG662485838

Diamond specifications and retailer prices

From $238 AUD
$167 USD
As of November 1, 2026
Save $1,151 AUD (83%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $1,389 AUD at MOH London · As of October 29, 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 D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG662485838 or 662485838. Listed at 14 retailers as of October 29, 2026, with prices from $238 to $1,389, a $1,151 spread on the same certified stone. MOH London lists it at $1,389. 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
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.7°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG662485838
Dimensions7.14 × 7.18 × 4.40 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.14 mm7.18 mm1.39 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG662485838
Side View
Table 57.0%Crown 34.7°Girdle: MediumPavilion 40.8°Culet: NoneDepth 61.5%

Caratlytics Score

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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: $1,389 AUD|Low: $238 AUD|High: $1,552 AUD|Avg: $754 AUD
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
Retailer 14
Retailer 15
Retailer 16
November 1, 2026
Retailer 12$238 AUD
Retailer 11$276 AUD
Retailer 6$295 AUD
Retailer 16$346 AUD
Retailer 13$508 AUD
Retailer 9$523 AUD
Retailer 3$531 AUD
Retailer 2$583 AUD
Retailer 14$661 AUD
Retailer 15$676 AUD
Retailer 4$769 AUD
Retailer 5$950 AUD
Retailer 10$1,002 AUD
Retailer 7$1,366 AUD
MOH London$1,389 AUD
Retailer 8$1,552 AUD

5 data points across 16 retailers

14 retailers$238 AUD to $1,389 AUD

A
Cheapest Retailer
-
$238 AUD
$167 USD
A
Retailer 2
-
$276 AUD
$194 USD
View
A
Retailer 3
-
$295 AUD
$207 USD
View
A
Retailer 4
-
$346 AUD
HK$1,900 HKD
View
A
Retailer 5
-
$508 AUD
€340 EUR
View
A
Retailer 6
-
$523 AUD
£289 GBP
View
B+
Retailer 7
-
$531 AUD
$373 USD
View
A
Retailer 8
-
$583 AUD
£323 GBP
View
A
Retailer 9
-
$661 AUD
$464 USD
View
B+
Retailer 10
-
$676 AUD
$475 USD
View
B+
Retailer 11
-
$769 AUD
$540 USD
View
B
Retailer 12
-
$950 AUD
$667 USD
View
B+
Retailer 13
-
$1,002 AUD
$704 USD
View
Most Expensive
B
MOH London
LG662485838 · Oct 29
$1,389 AUD
£768 GBP
View
13 more retailers have this diamond
Prices start from $238 AUDSave up to $1,151 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
$238 AUD