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Heart|Lab Grown|IGI

4.00ct F SI1 Heart Lab Grown Diamond

EX • F/SI1 • IGI LG603358151

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG603358151

Diamond specifications and retailer prices

From €545 EUR
As of November 6, 2026
Save €2,378 EUR (81%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: €2,922 EUR at MOH London · As of November 5, 2026
View at MOH London

About this 4ct lab-grown heart diamond

This 4ct lab-grown heart sits in the three to five carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG603358151 or 603358151. Listed at 15 retailers as of November 5, 2026, with prices from €545 to €2,922, a €2,378 spread on the same certified stone. MOH London lists it at €2,922. 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

4.00
Carat
F
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.3°
Pavilion angle42.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG603358151
Dimensions9.63 × 11.06 × 6.58 mm
L/W Ratio1.15
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
9.63 mm11.06 mm4.00 ctF / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG603358151
Side View
Table 59.0%Crown 33.3°Girdle: MED-THKPavilion 42.1°Culet: NoneDepth 59.5%

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: Nov 6
Current: €2,922 EUR|Low: €522 EUR|High: €2,965 EUR|Avg: €1,231 EUR|-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
November 6, 2026
Retailer 7€545 EUR
Retailer 11€610 EUR
Retailer 12€610 EUR
Retailer 8€674 EUR
Retailer 5€793 EUR
Retailer 4€1,018 EUR
Retailer 10€1,034 EUR
Retailer 2€1,043 EUR
Retailer 6€1,675 EUR
Retailer 9€1,775 EUR
Retailer 3€2,130 EUR
MOH London€2,922 EUR

45 data points across 12 retailers

15 retailers€545 EUR to €2,922 EUR

A
Cheapest Retailer
-
€545 EUR
A
Retailer 2
-
€610 EUR
View
Final sale: no returns
A
Retailer 3
-
€610 EUR
View
A
Retailer 4
-
€674 EUR
View
Retailer 5
-
€674 EUR
View
Price last confirmed 22 days ago
A
Retailer 6
-
€734 EUR
View
A
Retailer 7
-
€793 EUR
View
B+
Retailer 8
-
€1,018 EUR
View
B+
Retailer 9
-
€1,034 EUR
View
B+
Retailer 10
-
€1,043 EUR
View
B+
Retailer 11
-
€1,054 EUR
View
B
Retailer 12
-
€1,675 EUR
View
B
Retailer 13
-
€1,775 EUR
View
B
Retailer 14
-
€2,130 EUR
View
Most Expensive
B
MOH London
LG603358151 · Nov 5
€2,922 EUR
£2,569 GBP
View
14 more retailers have this diamond
Prices start from €545 EURSave up to €2,378 EUR

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
4.00ct Heart
€545 EUR