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Round|Lab Grown|IGI

1.09ct E SI1 Round Lab Grown Diamond

ID • E/SI1 • IGI LG689502441

Shape and cutting style on the report: Round brilliant

Certificate IGI LG689502441

Diamond specifications and retailer prices

From $209 AUD
$147 USD
As of October 29, 2026
Save $1,009 AUD (83%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $1,218 AUD at MOH London · As of October 29, 2026
View at MOH London

About this 1.09ct lab-grown round diamond

This 1.09ct lab-grown round 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 LG689502441 or 689502441. Listed at 18 retailers as of October 29, 2026, with prices from $209 to $1,218, a $1,009 spread on the same certified stone. MOH London lists it at $1,218. 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
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.3°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG689502441
Dimensions6.57 × 6.59 × 4.09 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.57 mm6.59 mm1.09 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG689502441
Side View
Table 56.0%Crown 34.3°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 62.2%

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: Oct 29
Current: $1,218 AUD|Low: $201 AUD|High: $1,226 AUD|Avg: $515 AUD|+0.6%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
October 30, 2026
Retailer 15$209 AUD
Retailer 3$233 AUD
Retailer 5$242 AUD
Retailer 8$259 AUD
Retailer 16$259 AUD
Retailer 7$349 AUD
Retailer 9$447 AUD
Retailer 10$451 AUD
Retailer 2$506 AUD
Retailer 14$569 AUD
Retailer 13$655 AUD
Retailer 12$663 AUD
Retailer 4$717 AUD
Retailer 11$726 AUD
Retailer 6$833 AUD
MOH London$1,218 AUD

44 data points across 16 retailers

18 retailers$209 AUD to $1,218 AUD

A
Cheapest Retailer
-
$209 AUD
$147 USD
A
Retailer 2
-
$233 AUD
$164 USD
View
Final sale: no returns
A
Retailer 3
-
$242 AUD
$170 USD
View
A
Retailer 4
-
$259 AUD
$182 USD
View
A
Retailer 5
-
$259 AUD
$182 USD
View
B+
Retailer 6
-
$349 AUD
$245 USD
View
A
Retailer 7
-
$438 AUD
$308 USD
View
A
Retailer 8
-
$447 AUD
£247 GBP
View
A
Retailer 9
-
$451 AUD
€302 EUR
View
A
Retailer 10
-
$506 AUD
£280 GBP
View
Retailer 11
-
$569 AUD
$400 USD
View
Price last confirmed 16 days ago
B+
Retailer 12
-
$655 AUD
View
B
Retailer 13
-
$663 AUD
$466 USD
View
B+
Retailer 14
-
$717 AUD
$504 USD
View
B+
Retailer 15
-
$726 AUD
$510 USD
View
Retailer 16
-
$796 AUD
$559 USD
View
Price last confirmed 44 days ago
B
Retailer 17
-
$833 AUD
$585 USD
View
Most Expensive
B
MOH London
LG689502441 · Oct 29
$1,218 AUD
£674 GBP
View
17 more retailers have this diamond
Prices start from $209 AUDSave up to $1,009 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 Round
$209 AUD