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Round|Lab Grown|IGI

0.39ct F SI1 Round Lab Grown Diamond

ID • F/SI1 • IGI LG587318566

Shape and cutting style on the report: Round brilliant

Certificate IGI LG587318566

Diamond specifications and retailer prices

From £57 GBP
$76 USD
As of October 29, 2026
Save £469 GBP (89%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £527 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 0.39ct lab-grown round diamond

This 0.39ct lab-grown round sits in the sub-half-carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG587318566 or 587318566. Listed at 12 retailers as of October 29, 2026, with prices from £57 to £527, a £469 spread on the same certified stone. MOH London lists it at £527. 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

0.39
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.6°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG587318566
Dimensions4.67 × 4.70 × 2.85 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
4.67 mm4.70 mm0.39 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG587318566
Side View
Table 59.0%Crown 34.6°Girdle: MED-STKPavilion 40.5°Culet: NoneDepth 60.8%

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: Oct 29
Current: £527 GBP|Low: £57 GBP|High: £562 GBP|Avg: £190 GBP|-5.3%
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
October 29, 2026
Retailer 9£57 GBP
Retailer 6£67 GBP
Retailer 8£76 GBP
Retailer 13£76 GBP
Retailer 3£98 GBP
Retailer 4£126 GBP
Retailer 7£135 GBP
Retailer 2£143 GBP
Retailer 5£177 GBP
Retailer 12£208 GBP
Retailer 10£229 GBP
Retailer 11£300 GBP
MOH London£527 GBP

34 data points across 13 retailers

12 retailers£57 GBP to £527 GBP

A
Cheapest Retailer
-
£57 GBP
$76 USD
A
Retailer 2
-
£67 GBP
$89 USD
View
A
Retailer 3
-
£76 GBP
$101 USD
View
A
Retailer 4
-
£76 GBP
$101 USD
View
A
Retailer 5
-
£98 GBP
$130 USD
View
A
Retailer 6
-
£126 GBP
View
Price last confirmed 16 days ago
A
Retailer 7
-
£135 GBP
$180 USD
View
A
Retailer 8
-
£143 GBP
€181 EUR
View
B+
Retailer 9
-
£208 GBP
SGD 373 SGD
View
B+
Retailer 10
-
£229 GBP
$304 USD
View
B+
Retailer 11
-
£300 GBP
$399 USD
View
Most Expensive
B
MOH London
LG587318566 · Oct 29
£527 GBP
View
11 more retailers have this diamond
Prices start from £57 GBPSave up to £469 GBP

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
0.39ct Round
£57 GBP