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Heart|Lab Grown|IGI

1.09ct E SI1 Heart Lab Grown Diamond

ID • E/SI1 • IGI LG805618652

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG805618652

Diamond specifications and retailer prices

From €135 EUR
As of November 6, 2026
Save €650 EUR (83%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: €785 EUR at MOH London · As of November 4, 2026
View at MOH London

About this 1.09ct lab-grown heart diamond

This 1.09ct lab-grown heart sits in the classic one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG805618652 or 805618652. Listed at 16 retailers as of November 4, 2026, with prices from €135 to €785, a €650 spread on the same certified stone. MOH London lists it at €785. 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

1.09
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle30.9°
Pavilion angle42.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG805618652
Dimensions7.30 × 6.42 × 4.15 mm
L/W Ratio1.14
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.30 mm6.42 mm1.09 ctE / SI1
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG805618652
Side View
Table 61.0%Crown 30.9°Girdle: THN-STKPavilion 42.8°Culet: NoneDepth 56.8%

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: €785 EUR|Low: €133 EUR|High: €860 EUR|Avg: €366 EUR|-4.6%
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
November 6, 2026
Retailer 9€135 EUR
Retailer 11€151 EUR
Retailer 14€158 EUR
Retailer 3€168 EUR
Retailer 2€217 EUR
Retailer 8€288 EUR
Retailer 15€304 EUR
Retailer 13€308 EUR
Retailer 12€319 EUR
Retailer 7€391 EUR
Retailer 6€439 EUR
Retailer 4€464 EUR
Retailer 10€541 EUR
Retailer 5€546 EUR
MOH London€785 EUR

41 data points across 15 retailers

16 retailers€135 EUR to €785 EUR

A
Cheapest Retailer
-
€135 EUR
A
Retailer 2
-
€151 EUR
View
Final sale: no returns
A
Retailer 3
-
€158 EUR
View
A
Retailer 4
-
€168 EUR
View
A
Retailer 5
-
€194 EUR
View
A
Retailer 6
-
€217 EUR
View
B+
Retailer 7
-
€288 EUR
View
B+
Retailer 8
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€304 EUR
View
B+
Retailer 9
-
€308 EUR
View
B+
Retailer 10
-
€319 EUR
View
Retailer 11
-
€391 EUR
View
Price last confirmed 11 days ago
B
Retailer 12
-
€439 EUR
View
B
Retailer 13
-
€464 EUR
View
B
Retailer 14
-
€541 EUR
View
B
Retailer 15
-
€546 EUR
View
Most Expensive
B
MOH London
LG805618652 · Nov 4
€785 EUR
£690 GBP
View
15 more retailers have this diamond
Prices start from €135 EURSave up to €650 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
1.09ct Heart
€135 EUR