CaratHunter
Plans
Oval|Lab Grown|IGI

3.05ct E SI1 Oval Lab Grown Diamond

ID • E/SI1 • IGI LG678584096

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG678584096

Diamond specifications and retailer prices

From $632 AUD
As of November 6, 2026
Save $3,793 AUD (86%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $4,424 AUD at Brilliant Earth · As of November 6, 2026
View at Brilliant Earth

About this 3.05ct lab-grown oval diamond

This 3.05ct lab-grown oval 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 LG678584096 or 678584096. Listed at 18 retailers as of November 6, 2026, with prices from $632 to $4,424, a $3,793 spread on the same certified stone. Brilliant Earth lists it at $4,424. 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

3.05
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle36.8°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG678584096
Dimensions11.46 × 8.22 × 5.12 mm
L/W Ratio1.39
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.46 mm8.22 mm3.05 ctE / SI1
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG678584096
Side View
Table 62.0%Crown 36.8°Girdle: THN-STKPavilion 40.7°Culet: NoneDepth 62.3%

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 6
Current: $4,424 AUD|Low: $632 AUD|High: $4,817 AUD|Avg: $1,727 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
November 6, 2026
Retailer 8$632 AUD
Retailer 7$707 AUD
Retailer 14$731 AUD
Retailer 15$783 AUD
Retailer 9$953 AUD
Retailer 5$990 AUD
Retailer 3$1,048 AUD
Retailer 16$1,221 AUD
Retailer 2$1,236 AUD
Retailer 10$1,279 AUD
Retailer 6$1,489 AUD
Retailer 13$2,196 AUD
Retailer 4$2,516 AUD
Retailer 12$2,765 AUD
Retailer 11$2,869 AUD
Brilliant Earth$4,424 AUD

40 data points across 16 retailers

18 retailers$632 AUD to $4,424 AUD

A
Cheapest Retailer
-
$632 AUD
A
Retailer 2
-
$707 AUD
View
A
Retailer 3
-
$731 AUD
View
Final sale: no returns
A
Retailer 4
-
$783 AUD
View
Retailer 5
-
$819 AUD
View
Price last confirmed 21 days ago
A
Retailer 6
-
$953 AUD
View
A
Retailer 7
-
$990 AUD
View
B+
Retailer 8
-
$1,048 AUD
View
A
Retailer 9
-
$1,221 AUD
View
A
Retailer 10
-
$1,236 AUD
View
A
Retailer 11
-
$1,279 AUD
View
B+
Retailer 12
-
$1,489 AUD
View
B+
Retailer 13
-
$1,917 AUD
View
B+
Retailer 14
-
$2,196 AUD
View
B
Retailer 15
-
$2,516 AUD
View
B
Retailer 16
-
$2,765 AUD
View
B
Retailer 17
-
$2,869 AUD
View
Most Expensive
B
Brilliant Earth
17470296A · Nov 6
$4,424 AUD
$3,040 USD
View
17 more retailers have this diamond
Prices start from $632 AUDSave up to $3,793 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
3.05ct Oval
$632 AUD