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Oval|Lab Grown|IGI

3.09ct D SI1 Oval Lab Grown Diamond

EX • D/SI1 • IGI LG746503745

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG746503745

Diamond specifications and retailer prices

From $681 AUD
As of November 6, 2026
Save $4,675 AUD (87%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $5,356 AUD at Brilliant Earth · As of November 5, 2026
View at Brilliant Earth

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 LG746503745 or 746503745. Listed at 20 retailers as of November 5, 2026, with prices from $681 to $5,356, a $4,675 spread on the same certified stone. Brilliant Earth lists it at $5,356. 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.1°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG746503745
Dimensions11.71 × 8.18 × 5.13 mm
L/W Ratio1.43
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.71 mm8.18 mm3.09 ctD / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG746503745
Side View
Table 61.0%Crown 37.1°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 62.7%

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 6
Current: $5,356 AUD|Low: $662 AUD|High: $5,356 AUD|Avg: $2,034 AUD|+8.2%
Brilliant Earth
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
Retailer 18
Retailer 19
November 6, 2026
Retailer 9$681 AUD
Retailer 19$763 AUD
Retailer 17$844 AUD
Retailer 10$966 AUD
Retailer 3$1,048 AUD
Retailer 12$1,144 AUD
Retailer 2$1,253 AUD
Retailer 6$1,319 AUD
Retailer 13$1,386 AUD
Retailer 5$1,388 AUD
Retailer 11$1,813 AUD
Retailer 15$2,014 AUD
Retailer 4$2,321 AUD
Retailer 18$2,714 AUD
Retailer 8$2,758 AUD
Retailer 14$2,940 AUD
Retailer 7$2,981 AUD
Retailer 16$3,101 AUD
Brilliant Earth$5,356 AUD

34 data points across 19 retailers

20 retailers$681 AUD to $5,356 AUD

A
Cheapest Retailer
-
$681 AUD
A
Retailer 2
-
$763 AUD
View
Retailer 3
-
$821 AUD
View
Price last confirmed 21 days ago
A
Retailer 4
-
$844 AUD
View
A
Retailer 5
-
$966 AUD
View
Final sale: no returns
A
Retailer 6
-
$1,048 AUD
View
A
Retailer 7
-
$1,144 AUD
View
A
Retailer 8
-
$1,253 AUD
View
B+
Retailer 9
-
$1,319 AUD
View
A
Retailer 10
-
$1,386 AUD
View
A
Retailer 11
-
$1,388 AUD
View
B+
Retailer 12
-
$1,813 AUD
View
B+
Retailer 13
-
$2,014 AUD
View
B+
Retailer 14
-
$2,321 AUD
View
B
Retailer 15
-
$2,714 AUD
View
B
Retailer 16
-
$2,758 AUD
View
B
Retailer 17
-
$2,940 AUD
View
B
Retailer 18
-
$2,981 AUD
View
B
Retailer 19
-
$3,101 AUD
View
Most Expensive
B
Brilliant Earth
16605189A · Nov 5
$5,356 AUD
$3,680 USD
View
19 more retailers have this diamond
Prices start from $681 AUDSave up to $4,675 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
$681 AUD