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Heart|Lab Grown|IGI

0.99ct E SI1 Heart Lab Grown Diamond

ID • E/SI1 • IGI LG819640684

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG819640684

Diamond specifications and retailer prices

From €222 EUR
$248 USD
As of November 1, 2026
Save €544 EUR (71%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: €766 EUR at MOH London · As of November 1, 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 SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG819640684 or 819640684. Listed at 6 retailers as of November 1, 2026, with prices from €222 to €766, a €544 spread on the same certified stone. MOH London lists it at €766. 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
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle39.8°
Pavilion angle40°
OriginLab Grown
Grading LabIGI
CertificateIGI LG819640684
Dimensions6.35 × 6.22 × 3.97 mm
L/W Ratio1.02
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.35 mm6.22 mm0.99 ctE / SI1
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG819640684
Side View
Table 60.0%Crown 39.8°Girdle: THK-VTKPavilion 40°Culet: NoneDepth 62.5%

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: Nov 1
Current: €766 EUR|Low: €210 EUR|High: €770 EUR|Avg: €385 EUR|-0.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 1, 2026
Retailer 5€222 EUR
Retailer 4€227 EUR
Retailer 2€281 EUR
Retailer 3€311 EUR
Retailer 6€576 EUR
MOH London€766 EUR

17 data points across 6 retailers

6 retailers€222 EUR to €766 EUR

B+
Cheapest Retailer
-
€222 EUR
$248 USD
A
Retailer 2
-
€227 EUR
$254 USD
View
B+
Retailer 3
-
€281 EUR
£247 GBP
View
B+
Retailer 4
-
€311 EUR
£274 GBP
View
B
Retailer 5
-
€576 EUR
$644 USD
View
Most Expensive
B
MOH London
LG819640684 · Nov 1
€766 EUR
£674 GBP
View
5 more retailers have this diamond
Prices start from €222 EURSave up to €544 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
€222 EUR