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Cushion|Lab Grown|IGI

1.57ct E SI1 Cushion Lab Grown Diamond

ID • E/SI1 • IGI LG618475823

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG618475823

Diamond specifications and retailer prices

From $228 USD
As of October 28, 2026
Save $1,642 USD (88%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $1,870 USD at Do Amore Diamonds · As of October 27, 2026
View at Do Amore Diamonds

About this 1.57ct lab-grown cushion diamond

This 1.57ct lab-grown cushion 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 LG618475823 or 618475823. Listed at 6 retailers as of October 27, 2026, with prices from $228 to $1,870, a $1,642 spread on the same certified stone. Do Amore Diamonds lists it at $1,870. 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
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.3°
Pavilion angle34.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG618475823
Dimensions8.56 × 5.88 × 3.93 mm
L/W Ratio1.46
Girdle conditionFaceted
Culet sizePointed
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
8.56 mm5.88 mm1.57 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG618475823
Side View
Table 62.0%Crown 36.3°Girdle: MED-STKPavilion 34.2°Culet: NoneDepth 66.8%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 28
Current: $1,870 USD|Low: $147 USD|High: $1,950 USD|Avg: $947 USD|-4.1%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 25, 2026
Retailer 6$228 USD
Retailer 3$422 USD
Retailer 4$836 USD
Retailer 2$1,071 USD
Retailer 5$1,100 USD
Do Amore Diamonds$1,870 USD

15 data points across 6 retailers

6 retailers$228 USD to $1,870 USD

A
Cheapest Retailer
-
$228 USD
Final sale: no returns
B+
Retailer 2
-
$422 USD
View
B+
Retailer 3
-
$836 USD
View
B
Retailer 4
-
$1,071 USD
£843 GBP
View
B
Retailer 5
-
$1,100 USD
View
Most Expensive
B
Do Amore Diamonds
27-710BE60AC · Oct 27
$1,870 USD
View
5 more retailers have this diamond
Prices start from $228 USDSave up to $1,642 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 Cushion
$228 USD