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Round|Lab Grown|IGI

3.09ct D SI1 Round Lab Grown Diamond

ID • D/SI1 • IGI LG735538647

Shape and cutting style on the report: Round brilliant

Certificate IGI LG735538647

Diamond specifications and retailer prices

From $1,126 AUD
As of November 4, 2026
Save $1,717 AUD (60%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $2,843 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 D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG735538647 or 735538647. Listed at 7 retailers as of November 4, 2026, with prices from $1,126 to $2,843, a $1,717 spread on the same certified stone. Rare Carat lists it at $2,843. 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
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.3°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG735538647
Dimensions9.39 × 9.33 × 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
9.39 mm9.33 mm3.09 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG735538647
Side View
Table 58.0%Crown 34.3°Girdle: MED-STKPavilion 40.7°Culet: NoneDepth 61.0%

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: $2,843 AUD|Low: $1,090 AUD|High: $3,030 AUD|Avg: $1,875 AUD|-6.2%
Rare Carat
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 4$1,126 AUD
Retailer 2$1,151 AUD
Retailer 5$1,254 AUD
Retailer 6$1,614 AUD
Retailer 7$2,334 AUD
Retailer 3$2,776 AUD
Rare Carat$2,843 AUD

31 data points across 7 retailers

7 retailers$1,126 AUD to $2,843 AUD

B+
Cheapest Retailer
-
$1,126 AUD
A
Retailer 2
-
$1,151 AUD
View
A
Retailer 3
-
$1,254 AUD
View
B+
Retailer 4
-
$1,614 AUD
View
B
Retailer 5
-
$2,334 AUD
View
B
Retailer 6
-
$2,776 AUD
View
Most Expensive
B
Rare Carat
SK - 25_l_735538647 · Nov 4
$2,843 AUD
$1,990 USD
View
6 more retailers have this diamond
Prices start from $1,126 AUDSave up to $1,717 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
$1,126 AUD