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Oval|Lab Grown|IGI

3.09ct D SI1 Oval Lab Grown Diamond

ID • D/SI1 • IGI LG709530337

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG709530337

Diamond specifications and retailer prices

From $514 AUD
$361 USD
As of October 29, 2026
Save $1,704 AUD (77%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $2,218 AUD at Adiamor · As of October 31, 2026
View at Adiamor

About this 3.09ct lab-grown oval diamond

This 3.09ct lab-grown oval 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 LG709530337 or 709530337. Listed at 12 retailers as of October 29, 2026, with prices from $514 to $2,218, a $1,704 spread on the same certified stone. Adiamor lists it at $2,218. 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 angle35.2°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG709530337
Dimensions12.08 × 8.14 × 5.08 mm
L/W Ratio1.48
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.08 mm8.14 mm3.09 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG709530337
Side View
Table 59.0%Crown 35.2°Girdle: MED-STKPavilion 41°Culet: NoneDepth 62.4%

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: Oct 29
Current: $2,218 AUD|Low: $514 AUD|High: $7,873 AUD|Avg: $1,892 AUD|+1.3%
Adiamor
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
October 31, 2026
Retailer 10$514 AUD
Retailer 5$595 AUD
Retailer 12$636 AUD
Retailer 14$711 AUD
Retailer 11$854 AUD
Retailer 9$870 AUD
Retailer 3$1,018 AUD
Retailer 13$1,088 AUD
Retailer 2$1,137 AUD
Retailer 7$1,413 AUD
Retailer 8$1,866 AUD
Retailer 4$2,046 AUD
Adiamor$2,218 AUD
Retailer 15$2,925 AUD
Retailer 6$7,873 AUD

5 data points across 15 retailers

12 retailers$514 AUD to $2,218 AUD

A
Cheapest Retailer
-
$514 AUD
$361 USD
A
Retailer 2
-
$595 AUD
$418 USD
View
A
Retailer 3
-
$636 AUD
$447 USD
View
A
Retailer 4
-
$711 AUD
HK$3,900 HKD
View
A
Retailer 5
-
$854 AUD
$600 USD
View
A
Retailer 6
-
$870 AUD
£481 GBP
View
B+
Retailer 7
-
$1,018 AUD
$715 USD
View
A
Retailer 8
-
$1,088 AUD
$764 USD
View
A
Retailer 9
-
$1,137 AUD
£629 GBP
View
B+
Retailer 10
-
$1,866 AUD
$1,311 USD
View
B+
Retailer 11
-
$2,046 AUD
$1,437 USD
View
Most Expensive
B
Adiamor
D-82829006 · Oct 31
$2,218 AUD
$1,558 USD
View
11 more retailers have this diamond
Prices start from $514 AUDSave up to $1,704 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 Oval
$514 AUD