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Heart|Lab Grown|IGI

1.00ct E SI2 Heart Lab Grown Diamond

ID • E/SI2 • IGI LG840612266

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG840612266

Diamond specifications and retailer prices

From €172 EUR
HK$1,500 HKD
As of October 31, 2026
Save €555 EUR (76%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: €726 EUR at MOH London · As of October 26, 2026
View at MOH London

About this 1ct lab-grown heart diamond

This 1ct lab-grown heart sits in the classic one-carat band, graded E colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG840612266 or 840612266. Listed at 9 retailers as of October 26, 2026, with prices from €172 to €726, a €555 spread on the same certified stone. MOH London lists it at €726. 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

1.00
Carat
E
Color
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle37.6°
Pavilion angle44°
OriginLab Grown
Grading LabIGI
CertificateIGI LG840612266
Dimensions6.86 × 6.00 × 4.27 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
6.86 mm6.00 mm1.00 ctE / SI2
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG840612266
Side View
Table 69.0%Crown 37.6°Girdle: MED-STKPavilion 44°Culet: NoneDepth 62.2%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: €726 EUR|Low: €139 EUR|High: €734 EUR|Avg: €332 EUR|-1.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 31, 2026
Retailer 10€139 EUR
Retailer 2€172 EUR
Retailer 7€208 EUR
Retailer 9€237 EUR
Retailer 5€264 EUR
Retailer 8€290 EUR
Retailer 6€333 EUR
Retailer 4€388 EUR
Retailer 3€425 EUR
MOH London€726 EUR

20 data points across 10 retailers

9 retailers€172 EUR to €726 EUR

A
Cheapest Retailer
-
€172 EUR
HK$1,500 HKD
Retailer 2
-
€208 EUR
£183 GBP
View
Price last confirmed 14 days ago
B+
Retailer 3
-
€237 EUR
$265 USD
View
B+
Retailer 4
-
€264 EUR
£232 GBP
View
B+
Retailer 5
-
€290 EUR
$324 USD
View
B+
Retailer 6
-
€333 EUR
£293 GBP
View
B+
Retailer 7
-
€388 EUR
$433 USD
View
B
Retailer 8
-
€425 EUR
SGD 641 SGD
View
Most Expensive
B
MOH London
LG840612266 · Oct 26
€726 EUR
£639 GBP
View
8 more retailers have this diamond
Prices start from €172 EURSave up to €555 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
1.00ct Heart
€172 EUR