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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 $353 AUD
$248 USD
As of October 30, 2026
Save $871 AUD (71%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $1,224 AUD at MOH London · As of October 29, 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 October 29, 2026, with prices from $353 to $1,224, a $871 spread on the same certified stone. MOH London lists it at $1,224. 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
Colour
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: Oct 30
Current: $1,224 AUD|Low: $334 AUD|High: $1,224 AUD|Avg: $608 AUD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 30, 2026
Retailer 5$353 AUD
Retailer 4$362 AUD
Retailer 2$451 AUD
Retailer 3$495 AUD
Retailer 6$916 AUD
MOH London$1,224 AUD

15 data points across 6 retailers

6 retailers$353 AUD to $1,224 AUD

B+
Cheapest Retailer
-
$353 AUD
$248 USD
A
Retailer 2
-
$362 AUD
$254 USD
View
B+
Retailer 3
-
$451 AUD
£249 GBP
View
B+
Retailer 4
-
$495 AUD
£274 GBP
View
B
Retailer 5
-
$916 AUD
$644 USD
View
Most Expensive
B
MOH London
LG819640684 · Oct 29
$1,224 AUD
£677 GBP
View
5 more retailers have this diamond
Prices start from $353 AUDSave up to $871 AUD

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
$353 AUD