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Heart|Lab Grown|IGI

1.09ct E SI1 Heart Lab Grown Diamond

EX • E/SI1 • IGI LG839615483

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG839615483

Diamond specifications and retailer prices

From $249 AUD
As of November 6, 2026
Save $639 AUD (72%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $888 AUD at Brilliant Earth · As of November 6, 2026
View at Brilliant Earth

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 LG839615483 or 839615483. Listed at 3 retailers as of November 6, 2026, with prices from $249 to $888, a $639 spread on the same certified stone. Brilliant Earth lists it at $888. 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.1°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG839615483
Dimensions6.27 × 7.13 × 4.24 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
6.27 mm7.13 mm1.09 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG839615483
Side View
Table 61.0%Crown 35.1°Girdle: MED-STKPavilion 40.2°Culet: NoneDepth 59.5%

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: $888 AUD|Low: $249 AUD|High: $1,397 AUD|Avg: $766 AUD|-36.5%
Brilliant Earth
Retailer 2
Retailer 3
November 6, 2026
Retailer 3$249 AUD
Retailer 2$498 AUD
Brilliant Earth$888 AUD

34 data points across 3 retailers

3 retailers$249 AUD to $888 AUD

A
Cheapest Retailer
-
$249 AUD
Final sale: no returns
B+
Retailer 2
-
$498 AUD
View
Most Expensive
B
Brilliant Earth
21583444A · Nov 6
$888 AUD
$610 USD
View
2 more retailers have this diamond
Prices start from $249 AUDSave up to $639 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
1.09ct Heart
$249 AUD