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Cushion|Lab Grown|IGI

1.57ct E SI1 Cushion Lab Grown Diamond

ID • E/SI1 • IGI LG526288477

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG526288477

Diamond specifications and retailer prices

From $274 SGD
$214 USD
As of October 28, 2026
Save $1,223 SGD (82%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $1,497 SGD at Reve Diamonds · As of October 30, 2026
View at Reve 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 LG526288477 or 526288477. Listed at 14 retailers as of October 28, 2026, with prices from $274 to $1,497, a $1,223 spread on the same certified stone. Reve Diamonds lists it at $1,497. 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
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle31.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG526288477
Dimensions6.82 × 6.39 × 4.03 mm
L/W Ratio1.07
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
6.82 mm6.39 mm1.57 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG526288477
Side View
Table 67.0%Crown 36.5°Girdle: STK-THKPavilion 31.1°Culet: NoneDepth 63.1%

Caratlytics Score

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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 28
Current: $554 SGD|Low: $274 SGD|High: $1,474 SGD|Avg: $744 SGD|+4.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 30, 2026
Retailer 2$274 SGD
Retailer 10$305 SGD
Retailer 5$410 SGD
Retailer 4$505 SGD
Retailer 1$554 SGD
Retailer 3$611 SGD
Retailer 11$734 SGD
Retailer 7$773 SGD
Retailer 8$1,102 SGD
Retailer 6$1,434 SGD
Retailer 9$1,436 SGD

43 data points across 11 retailers

14 retailers$274 SGD to $1,497 SGD

A
Cheapest Retailer
-
$274 SGD
$214 USD
Final sale: no returns
A
Retailer 2
-
$305 SGD
$238 USD
View
B+
Retailer 3
-
$410 SGD
$320 USD
View
A
Retailer 4
-
$505 SGD
€375 EUR
View
A
Retailer 5
-
$554 SGD
£341 GBP
View
A
Retailer 6
-
$611 SGD
$477 USD
View
A
Retailer 7
-
$616 SGD
$481 USD
View
B+
Retailer 8
-
$734 SGD
$573 USD
View
B+
Retailer 9
-
$773 SGD
$603 USD
View
B+
Retailer 10
-
$1,050 SGD
$819 USD
View
Retailer 11
-
$1,102 SGD
$860 USD
View
Price last confirmed 8 days ago
Retailer 12
-
$1,434 SGD
£881 GBP
View
Price last confirmed 9 days ago
B
Retailer 13
-
$1,436 SGD
$1,120 USD
View
Most Expensive
B
Reve Diamonds
8AED4C9E6 · Oct 30
$1,497 SGD
$1,168 USD
View
13 more retailers have this diamond
Prices start from $274 SGDSave up to $1,223 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
$274 SGD