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Round|Lab Grown|IGI

1.39ct F SI2 Round Lab Grown Diamond

ID • F/SI2 • IGI LG583318205

Shape and cutting style on the report: Round brilliant

Certificate IGI LG583318205

Diamond specifications and retailer prices

From $172 USD
As of October 29, 2026
Save $933 USD (84%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $1,105 USD 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 F colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG583318205 or 583318205. Listed at 8 retailers as of October 29, 2026, with prices from $172 to $1,105, a $933 spread on the same certified stone. MOH London lists it at $1,105. 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
F
Color
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.9°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG583318205
Dimensions7.19 × 7.16 × 4.41 mm
L/W Ratio1.00
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
7.19 mm7.16 mm1.39 ctF / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG583318205
Side View
Table 58.0%Crown 33.9°Girdle: MED-STKPavilion 41°Culet: NoneDepth 61.4%

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: Oct 29
Current: $1,105 USD|Low: $165 USD|High: $1,113 USD|Avg: $533 USD|+3.8%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 29, 2026
Retailer 4$172 USD
Retailer 8$199 USD
Retailer 6$379 USD
Retailer 9$405 USD
Retailer 2$448 USD
Retailer 5$510 USD
Retailer 10$685 USD
Retailer 3$723 USD
Retailer 7$756 USD
MOH London$1,105 USD

40 data points across 10 retailers

8 retailers$172 USD to $1,105 USD

A
Cheapest Retailer
-
$172 USD
A
Retailer 2
-
$199 USD
View
B+
Retailer 3
-
$379 USD
View
A
Retailer 4
-
$448 USD
£352 GBP
View
B+
Retailer 5
-
$510 USD
View
B+
Retailer 6
-
$723 USD
View
B
Retailer 7
-
$756 USD
View
Most Expensive
B
MOH London
LG583318205 · Oct 29
$1,105 USD
£870 GBP
View
7 more retailers have this diamond
Prices start from $172 USDSave up to $933 USD

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
$172 USD