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Oval|Lab Grown|IGI

1.57ct E SI1 Oval Lab Grown Diamond

ID • E/SI1 • IGI LG691528930

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG691528930

Diamond specifications and retailer prices

From $1,288 AUD
$905 USD
As of October 28, 2026
1 retailer carries this diamond
Only listing: $1,288 AUD at Rare Carat
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 Rare Carat

About this 1.57ct lab-grown oval diamond

This 1.57ct 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 LG691528930 or 691528930. Listed at a single retailer as of October 28, 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

1.57
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.4°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG691528930
Dimensions9.13 × 6.56 × 4.10 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
9.13 mm6.56 mm1.57 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG691528930
Side View
Table 61.0%Crown 35.4°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.5%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Oct 28
Current: $1,288 AUD|Low: $650 AUD|High: $2,704 AUD|Avg: $1,179 AUD|-1.1%
Rare Carat
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 18, 2026
Retailer 6$650 AUD
Retailer 2$719 AUD
Retailer 3$863 AUD
Retailer 4$912 AUD
Retailer 7$1,110 AUD
Rare Carat$1,288 AUD
Retailer 5$2,704 AUD

3 data points across 7 retailers

1 retailer

B
Rare Carat
492486 · Oct 28
$1,288 AUD
$905 USD
View

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.

B
1.57ct Oval
$1,288 AUD