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Heart|Lab Grown|IGI

0.99ct E SI2 Heart Lab Grown Diamond

ID • E/SI2 • IGI LG840611743

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG840611743

Diamond specifications and retailer prices

From €164 EUR
$183 USD
As of October 25, 2026
Save €604 EUR (79%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: €767 EUR at MOH London · As of October 26, 2026
View at MOH London

About this 0.99ct lab-grown heart diamond

This 0.99ct lab-grown heart sits in the just-under-one-carat band, graded E colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG840611743 or 840611743. Listed at 10 retailers as of October 25, 2026, with prices from €164 to €767, a €604 spread on the same certified stone. MOH London lists it at €767. 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

0.99
Carat
E
Color
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle34.9°
Pavilion angle42.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG840611743
Dimensions6.98 × 6.53 × 3.86 mm
L/W Ratio1.07
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.98 mm6.53 mm0.99 ctE / SI2
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG840611743
Side View
Table 64.0%Crown 34.9°Girdle: MED-STKPavilion 42.8°Culet: NoneDepth 55.3%

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 25
Current: €767 EUR|Low: €127 EUR|High: €775 EUR|Avg: €305 EUR|-1.0%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 31, 2026
Retailer 9€132 EUR
Retailer 11€148 EUR
Retailer 3€164 EUR
Retailer 7€183 EUR
Retailer 5€220 EUR
Retailer 10€263 EUR
Retailer 2€277 EUR
Retailer 8€302 EUR
Retailer 6€352 EUR
Retailer 4€414 EUR
MOH London€767 EUR

22 data points across 11 retailers

10 retailers€164 EUR to €767 EUR

Retailer 1
-
€132 EUR
$148 USD
Price last confirmed 8 days ago
A
Retailer 2
-
€164 EUR
$183 USD
View
A
Retailer 3
-
€183 EUR
HK$1,600 HKD
View
A
Retailer 4
-
€220 EUR
£193 GBP
View
B+
Retailer 5
-
€263 EUR
$294 USD
View
A
Retailer 6
-
€277 EUR
View
B+
Retailer 7
-
€302 EUR
$337 USD
View
B
Retailer 8
-
€352 EUR
£310 GBP
View
B+
Retailer 9
-
€414 EUR
$462 USD
View
Most Expensive
B
MOH London
LG840611743 · Oct 26
€767 EUR
£675 GBP
View
9 more retailers have this diamond
Prices start from €164 EURSave up to €604 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
0.99ct Heart
€164 EUR