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Round|Lab Grown|IGI

3.09ct D SI1 Round Lab Grown Diamond

ID • D/SI1 • IGI LG700584426

Shape and cutting style on the report: Round brilliant

Certificate IGI LG700584426

Diamond specifications and retailer prices

From $521 AUD
As of November 5, 2026
Save $2,343 AUD (82%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $2,864 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 LG700584426 or 700584426. Listed at 15 retailers as of November 4, 2026, with prices from $521 to $2,864, a $2,343 spread on the same certified stone. Rare Carat lists it at $2,864. 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 angle34.5°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG700584426
Dimensions9.38 × 9.42 × 5.76 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
9.38 mm9.42 mm3.09 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG700584426
Side View
Table 57.0%Crown 34.5°Girdle: MediumPavilion 40.9°Culet: NoneDepth 61.3%

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: $2,864 AUD|Low: $521 AUD|High: $7,571 AUD|Avg: $2,047 AUD|-27.5%
Rare Carat
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
Retailer 17
November 6, 2026
Retailer 13$521 AUD
Retailer 7$606 AUD
Retailer 6$647 AUD
Retailer 17$713 AUD
Retailer 10$859 AUD
Retailer 14$864 AUD
Retailer 15$1,031 AUD
Retailer 4$1,034 AUD
Retailer 16$1,099 AUD
Retailer 2$1,151 AUD
Retailer 3$1,596 AUD
Retailer 12$1,897 AUD
Retailer 5$2,078 AUD
Retailer 11$2,527 AUD
Rare Carat$2,864 AUD
Retailer 8$6,513 AUD
Retailer 9$7,571 AUD

11 data points across 17 retailers

15 retailers$521 AUD to $2,864 AUD

A
Cheapest Retailer
-
$521 AUD
A
Retailer 2
-
$606 AUD
View
A
Retailer 3
-
$647 AUD
View
A
Retailer 4
-
$713 AUD
View
A
Retailer 5
-
$859 AUD
View
A
Retailer 6
-
$864 AUD
View
Retailer 7
-
$1,031 AUD
View
Price last confirmed 8 days ago
B+
Retailer 8
-
$1,034 AUD
View
A
Retailer 9
-
$1,099 AUD
View
A
Retailer 10
-
$1,151 AUD
View
B+
Retailer 11
-
$1,596 AUD
View
B+
Retailer 12
-
$1,897 AUD
View
B
Retailer 13
-
$2,078 AUD
View
B
Retailer 14
-
$2,527 AUD
View
Most Expensive
B
Rare Carat
KI4265844KF700 · Nov 4
$2,864 AUD
$2,005 USD
View
14 more retailers have this diamond
Prices start from $521 AUDSave up to $2,343 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
$521 AUD