Heart|Lab Grown|IGI

0.39ct E SI1 Heart Lab Grown Diamond

ID • E/SI1 • IGI LG816670731

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG816670731

Diamond specifications and retailer prices

From £53 GBP
$70 USD
As of October 23, 2026
Save £430 GBP (89%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £483 GBP at MOH London · As of October 26, 2026
View at MOH London

About this 0.39ct lab-grown heart diamond

This 0.39ct lab-grown heart sits in the sub-half-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG816670731 or 816670731. Listed at 13 retailers as of October 23, 2026, with prices from £53 to £483, a £430 spread on the same certified stone. MOH London lists it at £483. 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
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle33.1°
Pavilion angle35.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG816670731
Dimensions5.61 × 4.50 × 2.71 mm
L/W Ratio1.25
Girdle conditionFaceted
Culet sizeNone
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
5.61 mm4.50 mm0.39 ctE / SI1
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG816670731
Side View
Table 67.0%Crown 33.1°Girdle: THN-STKPavilion 35.8°Culet: NoneDepth 48.3%

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 23
Current: £483 GBP|Low: £61 GBP|High: £582 GBP|Avg: £217 GBP|-16.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 28, 2026
Retailer 7£63 GBP
Retailer 8£83 GBP
Retailer 6£90 GBP
Retailer 3£117 GBP
Retailer 2£168 GBP
Retailer 9£225 GBP
Retailer 5£257 GBP
Retailer 4£295 GBP
MOH London£483 GBP

39 data points across 9 retailers

13 retailers£53 GBP to £483 GBP

A
Cheapest Retailer
-
£53 GBP
$70 USD
Retailer 2
-
£63 GBP
$84 USD
View
Price last confirmed 21 days ago
Retailer 3
-
£73 GBP
$97 USD
View
Price last confirmed 31 days ago
Retailer 4
-
£83 GBP
$111 USD
View
Price last confirmed 26 days ago
B+
Retailer 5
-
£90 GBP
$120 USD
View
B+
Retailer 6
-
£117 GBP
View
Retailer 7
-
£134 GBP
View
Price last confirmed 17 days ago
B+
Retailer 8
-
£168 GBP
View
Retailer 9
-
£225 GBP
$300 USD
View
Price last confirmed 41 days ago
Retailer 10
-
£252 GBP
$335 USD
View
Price last confirmed 29 days ago
B
Retailer 11
-
£257 GBP
$342 USD
View
B
Retailer 12
-
£295 GBP
$393 USD
View
Most Expensive
B
MOH London
LG816670731 · Oct 26
£483 GBP
View
12 more retailers have this diamond
Prices start from £53 GBPSave up to £430 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 Heart
£53 GBP