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Oval|Lab Grown|IGI

10.35ct E SI1 Oval Lab Grown Diamond

ID • E/SI1 • IGI LG584362023

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG584362023

Diamond specifications and retailer prices

From $5,221 NZD
£2,309 GBP
As of October 27, 2026
Save $25,689 NZD (83%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $30,909 NZD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 10.35ct lab-grown oval diamond

This 10.35ct lab-grown oval sits in the over five carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG584362023 or 584362023. Listed at 7 retailers as of October 27, 2026, with prices from $5,221 to $30,909, a $25,689 spread on the same certified stone. Brilliant Earth lists it at $30,909. 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

10.35
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.9°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG584362023
Dimensions18.02 × 12.15 × 7.61 mm
L/W Ratio1.48
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
18.02 mm12.15 mm10.35 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG584362023
Side View
Table 61.0%Crown 35.9°Girdle: MediumPavilion 41°Culet: NoneDepth 62.6%

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: Oct 27
Current: $31,871 NZD|Low: $5,221 NZD|High: $31,871 NZD|Avg: $12,953 NZD
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 30, 2026
Retailer 6$5,221 NZD
Retailer 7$5,297 NZD
Retailer 3$5,424 NZD
Retailer 12$6,239 NZD
Retailer 11$7,155 NZD
Retailer 2$9,349 NZD
Retailer 5$9,846 NZD
Retailer 8$12,024 NZD
Retailer 10$12,991 NZD
Retailer 9$17,839 NZD
Retailer 4$26,276 NZD
Brilliant Earth$31,871 NZD

8 data points across 12 retailers

7 retailers$5,221 NZD to $30,909 NZD

A
Cheapest Retailer
-
$5,221 NZD
£2,309 GBP
B+
Retailer 2
-
$5,297 NZD
$2,975 USD
View
B+
Retailer 3
-
$9,349 NZD
$5,251 USD
View
B+
Retailer 4
-
$12,024 NZD
$6,753 USD
View
B
Retailer 5
-
$12,991 NZD
$7,296 USD
View
B
Retailer 6
-
$17,839 NZD
$10,019 USD
View
Most Expensive
B
Brilliant Earth
22301283A · Oct 29
$30,909 NZD
$17,360 USD
View
6 more retailers have this diamond
Prices start from $5,221 NZDSave up to $25,689 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
10.35ct Oval
$5,221 NZD