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1.57ct E I1 Round Lab Grown Diamond

ID • E/I1 • IGI LG492143095

Shape and cutting style on the report: Round brilliant

Certificate IGI LG492143095

Diamond specifications and retailer prices

From $395 USD
As of October 28, 2026
Save $649 USD (62%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $1,044 USD at MOH London · As of October 26, 2026
View at MOH London

About this 1.57ct lab-grown round diamond

This 1.57ct lab-grown round sits in the one-and-a-half to two carat band, graded E colour (colourless) and I1 clarity (included), with a top-tier cut grade and certified by IGI LG492143095 or 492143095. Listed at 3 retailers as of October 26, 2026, with prices from $395 to $1,044, a $649 spread on the same certified stone. MOH London lists it at $1,044. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.57
Carat
E
Color
I1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG492143095
Dimensions7.45 × 7.50 × 4.59 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process.
Top View
7.45 mm7.50 mm1.57 ctE / I1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG492143095
Side View
Table 57.0%Crown 34.5°Girdle: MediumPavilion 40.8°Culet: NoneDepth 61.4%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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Price History

Last verified: Oct 28
Current: $1,044 USD|Low: $300 USD|High: $1,054 USD|Avg: $635 USD|-0.8%
MOH London
Retailer 2
Retailer 3
October 26, 2026
Retailer 2$395 USD
Retailer 3$485 USD
MOH London$1,044 USD

8 data points across 3 retailers

3 retailers$395 USD to $1,044 USD

B+
Cheapest Retailer
-
$395 USD
B+
Retailer 2
-
$485 USD
View
Most Expensive
B
MOH London
LG492143095 · Oct 26
$1,044 USD
£822 GBP
View
2 more retailers have this diamond
Prices start from $395 USDSave up to $649 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.

B+
1.57ct Round
$395 USD