CaratHunter
Plans
Heart|Lab Grown|IGI

1.09ct E SI1 Heart Lab Grown Diamond

ID • E/SI1 • IGI LG831648646

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG831648646

Diamond specifications and retailer prices

From $246 AUD
As of November 6, 2026
Save $1,029 AUD (81%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $1,275 AUD at MOH London · As of November 4, 2026
View at MOH London

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 LG831648646 or 831648646. Listed at 16 retailers as of November 4, 2026, with prices from $246 to $1,275, a $1,029 spread on the same certified stone. MOH London lists it at $1,275. 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
Ideal
Cut

Specifications

CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle35.2°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG831648646
Dimensions7.27 × 6.68 × 4.04 mm
L/W Ratio1.09
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.27 mm6.68 mm1.09 ctE / SI1
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG831648646
Side View
Table 64.0%Crown 35.2°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 55.6%

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 6
Current: $1,275 AUD|Low: $246 AUD|High: $1,397 AUD|Avg: $662 AUD|-3.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 5$246 AUD
Retailer 2$352 AUD
Retailer 9$463 AUD
Retailer 4$469 AUD
Retailer 3$495 AUD
Retailer 7$501 AUD
Retailer 6$518 AUD
Retailer 8$713 AUD
Retailer 10$754 AUD
Retailer 11$888 AUD
MOH London$1,275 AUD

42 data points across 11 retailers

16 retailers$246 AUD to $1,275 AUD

Retailer 1
-
$223 AUD
Price last confirmed 20 days ago
A
Retailer 2
-
$246 AUD
View
Final sale: no returns
Retailer 3
-
$259 AUD
View
Price last confirmed 22 days ago
Retailer 4
-
$277 AUD
View
Price last confirmed 22 days ago
A
Retailer 5
-
$316 AUD
View
A
Retailer 6
-
$352 AUD
View
B+
Retailer 7
-
$463 AUD
View
B+
Retailer 8
-
$469 AUD
View
Retailer 9
-
$495 AUD
View
Price last confirmed 12 days ago
B+
Retailer 10
-
$501 AUD
View
B+
Retailer 11
-
$518 AUD
View
B
Retailer 12
-
$713 AUD
View
B
Retailer 13
-
$754 AUD
View
B
Retailer 14
-
$888 AUD
View
Retailer 15
-
$888 AUD
View
Price last confirmed 21 days ago
Most Expensive
B
MOH London
LG831648646 · Nov 4
$1,275 AUD
£690 GBP
View
15 more retailers have this diamond
Prices start from $246 AUDSave up to $1,029 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
$246 AUD