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Oval|Lab Grown|IGI

1.57ct E SI1 Oval Lab Grown Diamond

EX • E/SI1 • IGI LG848690517

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG848690517

Diamond specifications and retailer prices

From $494 USD
£389 GBP
As of October 30, 2026
Save $596 USD (55%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $1,090 USD at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

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 LG848690517 or 848690517. Listed at 2 retailers as of October 30, 2026, with prices from $494 to $1,090, a $596 spread on the same certified stone. Brilliant Earth lists it at $1,090. 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
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG848690517
Dimensions9.20 × 6.66 × 4.08 mm
L/W Ratio1.38
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.20 mm6.66 mm1.57 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG848690517
Side View
Table 61.0%Crown 34°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 61.3%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 30
Current: $494 USD|Low: $491 USD|High: $494 USD|Avg: $493 USD|+0.6%
October 30, 2026
Retailer 1$494 USD

4 data points across 1 retailer

2 retailers$494 USD to $1,090 USD

A
Cheapest Retailer
-
$494 USD
£389 GBP
Most Expensive
B
Brilliant Earth
22322198A · Oct 30
$1,090 USD
View
1 more retailer has this diamond
Prices start from $494 USDSave up to $596 USD

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
1.57ct Oval
$494 USD