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Marquise|Lab Grown|IGI

1.09ct E SI1 Marquise Lab Grown Diamond

ID • E/SI1 • IGI LG835609047

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG835609047

Diamond specifications and retailer prices

From $226 AUD
As of November 4, 2026
Save $944 AUD (81%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $1,170 AUD at MOH London · As of November 4, 2026
View at MOH London

About this 1.09ct lab-grown marquise diamond

This 1.09ct lab-grown marquise 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 LG835609047 or 835609047. Listed at 12 retailers as of November 4, 2026, with prices from $226 to $1,170, a $944 spread on the same certified stone. MOH London lists it at $1,170. 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 angle32.3°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG835609047
Dimensions10.51 × 5.55 × 3.35 mm
L/W Ratio1.89
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.51 mm5.55 mm1.09 ctE / SI1
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG835609047
Side View
Table 60.0%Crown 32.3°Girdle: MED-STKPavilion 41°Culet: NoneDepth 60.4%

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 4
Current: $1,170 AUD|Low: $226 AUD|High: $1,201 AUD|Avg: $556 AUD|-1.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 12$226 AUD
Retailer 9$291 AUD
Retailer 2$323 AUD
Retailer 5$426 AUD
Retailer 8$431 AUD
Retailer 11$466 AUD
Retailer 6$476 AUD
Retailer 3$480 AUD
Retailer 7$640 AUD
Retailer 4$691 AUD
Retailer 10$764 AUD
MOH London$1,170 AUD

38 data points across 12 retailers

12 retailers$226 AUD to $1,170 AUD

A
Cheapest Retailer
-
$226 AUD
Final sale: no returns
A
Retailer 2
-
$291 AUD
View
A
Retailer 3
-
$323 AUD
View
A
Retailer 4
-
$426 AUD
View
Retailer 5
-
$431 AUD
View
Price last confirmed 10 days ago
B+
Retailer 6
-
$466 AUD
View
A
Retailer 7
-
$476 AUD
View
Retailer 8
-
$480 AUD
View
Price last confirmed 12 days ago
B+
Retailer 9
-
$640 AUD
View
B+
Retailer 10
-
$691 AUD
View
Retailer 11
-
$764 AUD
View
Price last confirmed 9 days ago
Most Expensive
B
MOH London
LG835609047 · Nov 4
$1,170 AUD
£645 GBP
View
11 more retailers have this diamond
Prices start from $226 AUDSave up to $944 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 Marquise
$226 AUD