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Round|Lab Grown|IGI

3.09ct E SI1 Round Lab Grown Diamond

ID • E/SI1 • IGI LG784661357

Shape and cutting style on the report: Round brilliant

Certificate IGI LG784661357

Diamond specifications and retailer prices

From $1,009 AUD
As of November 4, 2026
Save $1,506 AUD (60%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $2,514 AUD at Rare Carat · As of November 4, 2026
View at Rare Carat

About this 3.09ct lab-grown round diamond

This 3.09ct lab-grown round sits in the three to five carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG784661357 or 784661357. Listed at 7 retailers as of November 4, 2026, with prices from $1,009 to $2,514, a $1,506 spread on the same certified stone. Rare Carat lists it at $2,514. 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
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.2°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG784661357
Dimensions9.43 × 9.36 × 5.72 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.43 mm9.36 mm3.09 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG784661357
Side View
Table 59.0%Crown 33.2°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 61.0%

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 4
Current: $2,514 AUD|Low: $973 AUD|High: $2,636 AUD|Avg: $1,688 AUD|-4.6%
Rare Carat
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 4$1,009 AUD
Retailer 2$1,116 AUD
Retailer 5$1,189 AUD
Retailer 6$1,370 AUD
Retailer 7$2,077 AUD
Retailer 3$2,447 AUD
Rare Carat$2,514 AUD

40 data points across 7 retailers

7 retailers$1,009 AUD to $2,514 AUD

B+
Cheapest Retailer
-
$1,009 AUD
A
Retailer 2
-
$1,116 AUD
View
A
Retailer 3
-
$1,189 AUD
View
A
Retailer 4
-
$1,370 AUD
View
B
Retailer 5
-
$2,077 AUD
View
B
Retailer 6
-
$2,447 AUD
View
Most Expensive
B
Rare Carat
DM1-19_l_784661357 · Nov 4
$2,514 AUD
$1,760 USD
View
6 more retailers have this diamond
Prices start from $1,009 AUDSave up to $1,506 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
$1,009 AUD