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Round|Lab Grown|IGI

3.09ct I SI1 Round Lab Grown Diamond

EX • I/SI1 • IGI LG483197020

Shape and cutting style on the report: Round brilliant

Certificate IGI LG483197020

Diamond specifications and retailer prices

From $2,471 AUD
As of November 5, 2026
Save $18,490 AUD (88%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $20,961 AUD at MOH London · As of November 5, 2026
View at MOH London

About this 3.09ct lab-grown round diamond

This 3.09ct lab-grown round sits in the three to five carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG483197020 or 483197020. Listed at 11 retailers as of November 5, 2026, with prices from $2,471 to $20,961, a $18,490 spread on the same certified stone. MOH London lists it at $20,961. 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

3.09
Carat
I
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.1°
Pavilion angle40.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG483197020
Dimensions9.36 × 9.34 × 5.63 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
9.36 mm9.34 mm3.09 ctI / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG483197020
Side View
Table 60.5%Crown 35.1°Girdle: MED-STKPavilion 40.1°Culet: NoneDepth 60.2%

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: Nov 5
Current: $20,961 AUD|Low: $2,471 AUD|High: $21,299 AUD|Avg: $11,485 AUD|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 5, 2026
Retailer 2$2,471 AUD
Retailer 4$9,064 AUD
Retailer 6$10,151 AUD
Retailer 7$10,485 AUD
Retailer 8$10,857 AUD
Retailer 5$12,192 AUD
Retailer 3$12,501 AUD
MOH London$20,961 AUD

17 data points across 8 retailers

11 retailers$2,471 AUD to $20,961 AUD

A
Cheapest Retailer
-
$2,471 AUD
B
Retailer 2
-
$9,064 AUD
View
B
Retailer 3
-
$9,425 AUD
View
B
Retailer 4
-
$10,151 AUD
View
Final sale: no returns
B
Retailer 5
-
$10,485 AUD
View
B
Retailer 6
-
$10,514 AUD
View
Retailer 7
-
$10,514 AUD
View
Price last confirmed 25 days ago
B
Retailer 8
-
$12,192 AUD
View
B
Retailer 9
-
$12,481 AUD
View
B
Retailer 10
-
$12,501 AUD
View
Most Expensive
B
MOH London
LG483197020 · Nov 5
$20,961 AUD
£11,554 GBP
View
10 more retailers have this diamond
Prices start from $2,471 AUDSave up to $18,490 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
3.09ct Round
$2,471 AUD