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Round|Lab Grown|IGI

1.09ct J SI2 Round Lab Grown Diamond

EX • J/SI2 • IGI LG442069274

Shape and cutting style on the report: Round brilliant

Certificate IGI LG442069274

Diamond specifications and retailer prices

From $886 AUD
As of November 5, 2026
Save $4,250 AUD (83%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $5,136 AUD at MOH London · As of November 5, 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 J colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG442069274 or 442069274. Listed at 12 retailers as of November 5, 2026, with prices from $886 to $5,136, a $4,250 spread on the same certified stone. MOH London lists it at $5,136. 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
J
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG442069274
Dimensions6.53 × 6.54 × 4.12 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
6.53 mm6.54 mm1.09 ctJ / SI2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG442069274
Side View
Table 58.0%Crown 36°GirdlePavilion 41.1°Culet: NoneDepth 63.0%

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 5
Current: $5,136 AUD|Low: $886 AUD|High: $5,219 AUD|Avg: $2,409 AUD|-1.3%
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
November 6, 2026
Retailer 8$886 AUD
Retailer 10$1,309 AUD
Retailer 14$1,424 AUD
Retailer 4$1,466 AUD
Retailer 11$1,518 AUD
Retailer 13$1,518 AUD
Retailer 2$1,797 AUD
Retailer 5$2,221 AUD
Retailer 12$2,434 AUD
Retailer 7$2,591 AUD
Retailer 9$3,378 AUD
Retailer 6$3,398 AUD
Retailer 3$4,270 AUD
MOH London$5,136 AUD

34 data points across 14 retailers

12 retailers$886 AUD to $5,136 AUD

A
Cheapest Retailer
-
$886 AUD
B+
Retailer 2
-
$1,309 AUD
View
B+
Retailer 3
-
$1,424 AUD
View
B+
Retailer 4
-
$1,466 AUD
View
Final sale: no returns
Retailer 5
-
$1,518 AUD
View
Price last confirmed 25 days ago
B+
Retailer 6
-
$1,518 AUD
View
B+
Retailer 7
-
$1,797 AUD
View
B
Retailer 8
-
$2,434 AUD
View
B
Retailer 9
-
$2,591 AUD
View
B
Retailer 10
-
$3,378 AUD
View
C
Retailer 11
-
$4,270 AUD
View
Most Expensive
B
MOH London
LG442069274 · Nov 5
$5,136 AUD
£2,831 GBP
View
11 more retailers have this diamond
Prices start from $886 AUDSave up to $4,250 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
$886 AUD