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Cushion|Lab Grown|IGI

1.57ct I SI1 Cushion Lab Grown Diamond

ID • I/SI1 • IGI LG587320952

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG587320952

Diamond specifications and retailer prices

From $322 USD
As of October 30, 2026
Save $1,018 USD (76%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $1,340 USD at Do Amore Diamonds · As of October 29, 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 I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG587320952 or 587320952. Listed at 5 retailers as of October 29, 2026, with prices from $322 to $1,340, a $1,018 spread on the same certified stone. Do Amore Diamonds lists it at $1,340. 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
I
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.2°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG587320952
Dimensions6.79 × 6.73 × 4.56 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
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
6.79 mm6.73 mm1.57 ctI / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG587320952
Side View
Table 60.0%Crown 36.2°Girdle: MED-STKPavilion 40.5°Culet: NoneDepth 67.8%

Caratlytics Score

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

Price History

Last verified: Oct 30
Current: $1,340 USD|Low: $317 USD|High: $1,520 USD|Avg: $940 USD|-6.9%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
October 30, 2026
Retailer 4$322 USD
Retailer 5$664 USD
Retailer 2$860 USD
Retailer 3$892 USD
Do Amore Diamonds$1,340 USD

9 data points across 5 retailers

5 retailers$322 USD to $1,340 USD

B+
Cheapest Retailer
-
$322 USD
A
Retailer 2
-
$664 USD
View
B+
Retailer 3
-
$860 USD
View
B+
Retailer 4
-
$892 USD
£702 GBP
View
Most Expensive
B
Do Amore Diamonds
27-1E583C975 · Oct 29
$1,340 USD
View
4 more retailers have this diamond
Prices start from $322 USDSave up to $1,018 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
$322 USD