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Oval|Lab Grown|IGI

1.57ct E SI1 Oval Lab Grown Diamond

EX • E/SI1 • IGI LG847603178

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG847603178

Diamond specifications and retailer prices

From $228 USD
As of October 30, 2026
Save $862 USD (79%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $1,090 USD at Brilliant Earth · As of October 29, 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 LG847603178 or 847603178. Listed at 3 retailers as of October 29, 2026, with prices from $228 to $1,090, a $862 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 angle34.4°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG847603178
Dimensions9.46 × 6.50 × 4.03 mm
L/W Ratio1.46
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.46 mm6.50 mm1.57 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG847603178
Side View
Table 62.0%Crown 34.4°Girdle: MED-STKPavilion 40.9°Culet: NoneDepth 62.0%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 30
Current: $1,090 USD|Low: $228 USD|High: $1,090 USD|Avg: $698 USD
Brilliant Earth
Retailer 2
Retailer 3
October 30, 2026
Retailer 3$228 USD
Retailer 2$480 USD
Brilliant Earth$1,090 USD

8 data points across 3 retailers

3 retailers$228 USD to $1,090 USD

A
Cheapest Retailer
-
$228 USD
Final sale: no returns
A
Retailer 2
-
$480 USD
£378 GBP
View
Most Expensive
B
Brilliant Earth
22227123A · Oct 29
$1,090 USD
View
2 more retailers have this diamond
Prices start from $228 USDSave up to $862 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
$228 USD