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Oval|Lab Grown|IGI

3.74ct E SI2 Oval Lab Grown Diamond

ID • E/SI2 • IGI LG643423457

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG643423457

Diamond specifications and retailer prices

From $720 AUD
$506 USD
As of October 27, 2026
Save $5,742 AUD (89%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $6,462 AUD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 3.74ct lab-grown oval diamond

This 3.74ct lab-grown oval sits in the three to five carat band, graded E colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG643423457 or 643423457. Listed at 13 retailers as of October 27, 2026, with prices from $720 to $6,462, a $5,742 spread on the same certified stone. Brilliant Earth lists it at $6,462. 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

3.74
Carat
E
Colour
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.6°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG643423457
Dimensions12.89 × 8.64 × 5.42 mm
L/W Ratio1.49
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.89 mm8.64 mm3.74 ctE / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG643423457
Side View
Table 60.0%Crown 35.6°Girdle: MED-STKPavilion 41.1°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: Oct 27
Current: $7,017 AUD|Low: $720 AUD|High: $7,294 AUD|Avg: $2,784 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
Retailer 16
Retailer 17
Retailer 18
October 29, 2026
Retailer 17$720 AUD
Retailer 14$807 AUD
Retailer 6$894 AUD
Retailer 9$1,312 AUD
Retailer 16$1,324 AUD
Retailer 12$1,325 AUD
Retailer 15$1,443 AUD
Retailer 2$1,538 AUD
Retailer 7$1,719 AUD
Retailer 3$2,306 AUD
Retailer 4$2,550 AUD
Retailer 5$2,593 AUD
Retailer 8$3,050 AUD
Retailer 13$3,672 AUD
Retailer 18$4,259 AUD
Retailer 11$4,304 AUD
Brilliant Earth$7,017 AUD
Retailer 10$7,294 AUD

9 data points across 18 retailers

13 retailers$720 AUD to $6,462 AUD

A
Cheapest Retailer
-
$720 AUD
$506 USD
A
Retailer 2
-
$807 AUD
$567 USD
View
A
Retailer 3
-
$894 AUD
$628 USD
View
B+
Retailer 4
-
$1,324 AUD
$930 USD
View
A
Retailer 5
-
$1,325 AUD
£733 GBP
View
A
Retailer 6
-
$1,443 AUD
$1,014 USD
View
A
Retailer 7
-
$1,538 AUD
£851 GBP
View
B+
Retailer 8
-
$2,306 AUD
$1,620 USD
View
B+
Retailer 9
-
$2,550 AUD
$1,792 USD
View
B+
Retailer 10
-
$2,593 AUD
$1,822 USD
View
B
Retailer 11
-
$4,259 AUD
$2,992 USD
View
B
Retailer 12
-
$4,304 AUD
£2,381 GBP
View
Most Expensive
B
Brilliant Earth
22300949A · Oct 29
$6,462 AUD
$4,540 USD
View
12 more retailers have this diamond
Prices start from $720 AUDSave up to $5,742 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
3.74ct Oval
$720 AUD