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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 €192 EUR
$214 USD
As of October 30, 2026
Save €854 EUR (82%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: €1,045 EUR 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 30, 2026, with prices from €192 to €1,045, a €854 spread on the same certified stone. Reve Diamonds lists it at €1,045. 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 angle36.5°
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 30
Current: €510 EUR|Low: €192 EUR|High: €1,029 EUR|Avg: €519 EUR|+4.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 31, 2026
Retailer 2€192 EUR
Retailer 10€213 EUR
Retailer 7€286 EUR
Retailer 6€352 EUR
Retailer 5€387 EUR
Retailer 3€427 EUR
Retailer 1€510 EUR
Retailer 11€513 EUR
Retailer 9€770 EUR
Retailer 4€841 EUR
Retailer 8€1,001 EUR

42 data points across 11 retailers

14 retailers€192 EUR to €1,045 EUR

A
Cheapest Retailer
-
€192 EUR
$214 USD
Final sale: no returns
A
Retailer 2
-
€213 EUR
$238 USD
View
B+
Retailer 3
-
€286 EUR
$320 USD
View
A
Retailer 4
-
€352 EUR
View
A
Retailer 5
-
€387 EUR
£341 GBP
View
A
Retailer 6
-
€427 EUR
$477 USD
View
A
Retailer 7
-
€431 EUR
$481 USD
View
A
Retailer 8
-
€510 EUR
$570 USD
View
B+
Retailer 9
-
€513 EUR
$573 USD
View
B+
Retailer 10
-
€733 EUR
$819 USD
View
Retailer 11
-
€770 EUR
$860 USD
View
Price last confirmed 10 days ago
B+
Retailer 12
-
€841 EUR
$940 USD
View
Retailer 13
-
€1,001 EUR
£881 GBP
View
Price last confirmed 11 days ago
Most Expensive
B
Reve Diamonds
8AED4C9E6 · Oct 30
€1,045 EUR
$1,168 USD
View
13 more retailers have this diamond
Prices start from €192 EURSave up to €854 EUR

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
€192 EUR