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Oval|Lab Grown|IGI

10.18ct E SI1 Oval Lab Grown Diamond

ID • E/SI1 • IGI LG583319019

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG583319019

Diamond specifications and retailer prices

From $2,607 AUD
£1,442 GBP
As of October 27, 2026
Save $21,690 AUD (89%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $24,297 AUD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 10.18ct lab-grown oval diamond

This 10.18ct 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 LG583319019 or 583319019. Listed at 10 retailers as of October 27, 2026, with prices from $2,607 to $24,297, a $21,690 spread on the same certified stone. Brilliant Earth lists it at $24,297. 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

10.18
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.1°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG583319019
Dimensions17.53 × 12.20 × 7.68 mm
L/W Ratio1.44
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
17.53 mm12.20 mm10.18 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG583319019
Side View
Table 60.0%Crown 36.1°Girdle: MediumPavilion 41°Culet: NoneDepth 63.0%

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 27
Current: $23,927 AUD|Low: $2,607 AUD|High: $23,927 AUD|Avg: $10,050 AUD
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
October 29, 2026
Retailer 10$2,607 AUD
Retailer 11$4,106 AUD
Retailer 12$4,163 AUD
Retailer 6$4,263 AUD
Retailer 5$4,911 AUD
Retailer 9$5,460 AUD
Retailer 4$5,626 AUD
Retailer 15$7,325 AUD
Retailer 8$7,822 AUD
Retailer 13$9,325 AUD
Retailer 3$10,224 AUD
Retailer 14$14,026 AUD
Retailer 2$15,657 AUD
Retailer 7$20,661 AUD
Brilliant Earth$23,927 AUD

8 data points across 15 retailers

10 retailers$2,607 AUD to $24,297 AUD

A
Cheapest Retailer
-
$2,607 AUD
£1,442 GBP
A
Retailer 2
-
$4,106 AUD
£2,271 GBP
View
B+
Retailer 3
-
$4,163 AUD
$2,925 USD
View
B+
Retailer 4
-
$5,460 AUD
$3,836 USD
View
B+
Retailer 5
-
$7,325 AUD
$5,146 USD
View
B
Retailer 6
-
$9,325 AUD
$6,551 USD
View
B
Retailer 7
-
$10,224 AUD
$7,183 USD
View
B
Retailer 8
-
$14,026 AUD
$9,854 USD
View
B
Retailer 9
-
$15,657 AUD
$11,000 USD
View
Most Expensive
B
Brilliant Earth
22301413A · Oct 29
$24,297 AUD
$17,070 USD
View
9 more retailers have this diamond
Prices start from $2,607 AUDSave up to $21,690 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
10.18ct Oval
$2,607 AUD