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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 $783 NZD
As of November 6, 2026
Save $4,701 NZD (86%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $5,484 NZD 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 $783 to $5,484, a $4,701 spread on the same certified stone. Brilliant Earth lists it at $5,484. 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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $5,484 NZD|Low: $783 NZD|High: $5,971 NZD|Avg: $2,141 NZD|-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$783 NZD
Retailer 7$877 NZD
Retailer 14$906 NZD
Retailer 15$970 NZD
Retailer 9$1,182 NZD
Retailer 5$1,227 NZD
Retailer 3$1,299 NZD
Retailer 16$1,513 NZD
Retailer 2$1,532 NZD
Retailer 10$1,586 NZD
Retailer 6$1,845 NZD
Retailer 13$2,722 NZD
Retailer 4$3,119 NZD
Retailer 12$3,427 NZD
Retailer 11$3,555 NZD
Brilliant Earth$5,484 NZD

40 data points across 16 retailers

18 retailers$783 NZD to $5,484 NZD

A
Cheapest Retailer
-
$783 NZD
A
Retailer 2
-
$877 NZD
View
A
Retailer 3
-
$906 NZD
View
Final sale: no returns
A
Retailer 4
-
$970 NZD
View
Retailer 5
-
$1,016 NZD
View
Price last confirmed 21 days ago
A
Retailer 6
-
$1,182 NZD
View
A
Retailer 7
-
$1,227 NZD
View
B+
Retailer 8
-
$1,299 NZD
View
A
Retailer 9
-
$1,513 NZD
View
A
Retailer 10
-
$1,532 NZD
View
A
Retailer 11
-
$1,586 NZD
View
B+
Retailer 12
-
$1,845 NZD
View
B+
Retailer 13
-
$2,376 NZD
View
B+
Retailer 14
-
$2,722 NZD
View
B
Retailer 15
-
$3,119 NZD
View
B
Retailer 16
-
$3,427 NZD
View
B
Retailer 17
-
$3,555 NZD
View
Most Expensive
B
Brilliant Earth
17470296A · Nov 6
$5,484 NZD
$3,040 USD
View
17 more retailers have this diamond
Prices start from $783 NZDSave up to $4,701 NZD

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
$783 NZD