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Cushion|Lab Grown|IGI

1.58ct E SI1 Cushion Lab Grown Diamond

EX • E/SI1 • IGI LG641410499

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG641410499

Diamond specifications and retailer prices

From €362 EUR
$404 USD
As of October 30, 2026
Save €830 EUR (70%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: €1,192 EUR at Michael Trio · As of October 31, 2026
View at Michael Trio

About this 1.58ct lab-grown cushion diamond

This 1.58ct 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 LG641410499 or 641410499. Listed at 5 retailers as of October 30, 2026, with prices from €362 to €1,192, a €830 spread on the same certified stone. Michael Trio lists it at €1,192. 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

1.58
Carat
E
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.3°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG641410499
Dimensions6.76 × 6.74 × 4.53 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.76 mm6.74 mm1.58 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG641410499
Side View
Table 61.0%Crown 33.3°Girdle: MED-STKPavilion 40.2°Culet: NoneDepth 67.2%

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: €1,192 EUR|Low: €362 EUR|High: €1,192 EUR|Avg: €634 EUR
Michael Trio
Retailer 2
Retailer 3
Retailer 4
Retailer 5
October 19, 2026
Retailer 4€362 EUR
Retailer 3€363 EUR
Retailer 5€412 EUR
Retailer 2€783 EUR
Michael Trio€1,192 EUR

6 data points across 5 retailers

5 retailers€362 EUR to €1,192 EUR

A
Cheapest Retailer
-
€362 EUR
$404 USD
A
Retailer 2
-
€363 EUR
$405 USD
View
A
Retailer 3
-
€412 EUR
HK$3,600 HKD
View
Retailer 4
-
€783 EUR
$875 USD
View
Price last confirmed 11 days ago
Most Expensive
B
Michael Trio
9030354610 · Oct 31
€1,192 EUR
SGD 1,799 SGD
View
4 more retailers have this diamond
Prices start from €362 EURSave up to €830 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
1.58ct Cushion
€362 EUR