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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 $412 SGD
$322 USD
As of November 1, 2026
Save $1,301 SGD (76%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $1,713 SGD at Do Amore Diamonds · As of October 31, 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 31, 2026, with prices from $412 to $1,713, a $1,301 spread on the same certified stone. Do Amore Diamonds lists it at $1,713. 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
Colour
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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $1,713 SGD|Low: $405 SGD|High: $1,943 SGD|Avg: $1,202 SGD|-6.9%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
October 30, 2026
Retailer 4$412 SGD
Retailer 5$849 SGD
Retailer 2$1,099 SGD
Retailer 3$1,140 SGD
Do Amore Diamonds$1,713 SGD

9 data points across 5 retailers

5 retailers$412 SGD to $1,713 SGD

B+
Cheapest Retailer
-
$412 SGD
$322 USD
A
Retailer 2
-
$849 SGD
$664 USD
View
B+
Retailer 3
-
$1,099 SGD
$860 USD
View
B+
Retailer 4
-
$1,140 SGD
£702 GBP
View
Most Expensive
B
Do Amore Diamonds
27-1E583C975 · Oct 31
$1,713 SGD
$1,340 USD
View
4 more retailers have this diamond
Prices start from $412 SGDSave up to $1,301 SGD

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
$412 SGD