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Oval|Lab Grown|IGI

1.64ct E SI1 Oval Lab Grown Diamond

ID • E/SI1 • IGI LG607394203

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG607394203

Diamond specifications and retailer prices

From $2,121 AUD
$1,490 USD
As of October 29, 2026
1 retailer carries this diamond
Only listing: $2,121 AUD at Brilliant Earth
Only one retailer lists this diamond right now, and it is shown above, so there is nothing to unlock. Similar diamonds are carried by several retailers.
View at Brilliant Earth

About this 1.64ct lab-grown oval diamond

This 1.64ct lab-grown oval sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG607394203 or 607394203. Listed at a single retailer as of October 29, 2026. If it later appears at another store, Carat Hunter will surface the price comparison automatically. 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

1.64
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.8°
Pavilion angle38.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG607394203
Dimensions9.75 × 6.56 × 3.96 mm
L/W Ratio1.49
Girdle conditionFaceted
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
9.75 mm6.56 mm1.64 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG607394203
Side View
Table 60.0%Crown 35.8°Girdle: MED-STKPavilion 38.9°Culet: NoneDepth 60.4%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Oct 29
Current: $2,121 AUD|Low: $2,121 AUD|High: $2,121 AUD|Avg: $2,121 AUD
December 30, 2025
Brilliant Earth$2,121 AUD

4 data points across 1 retailer

1 retailer

B
Brilliant Earth
9350424Y · Oct 29
$2,121 AUD
$1,490 USD
View

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B
1.64ct Oval
$2,121 AUD