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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 $404 USD
As of October 27, 2026
Save $927 USD (70%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $1,331 USD at Michael Trio · As of October 29, 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 27, 2026, with prices from $404 to $1,331, a $927 spread on the same certified stone. Michael Trio lists it at $1,331. 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

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 27
Current: $1,331 USD|Low: $404 USD|High: $1,331 USD|Avg: $708 USD
Michael Trio
Retailer 2
Retailer 3
Retailer 4
Retailer 5
October 19, 2026
Retailer 4$404 USD
Retailer 3$405 USD
Retailer 5$461 USD
Retailer 2$875 USD
Michael Trio$1,331 USD

6 data points across 5 retailers

5 retailers$404 USD to $1,331 USD

A
Cheapest Retailer
-
$404 USD
A
Retailer 2
-
$405 USD
View
A
Retailer 3
-
$461 USD
HK$3,600 HKD
View
B+
Retailer 4
-
$875 USD
View
Price last confirmed 8 days ago
Most Expensive
B
Michael Trio
9030354610 · Oct 29
$1,331 USD
SGD 1,799 SGD
View
4 more retailers have this diamond
Prices start from $404 USDSave up to $927 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
1.58ct Cushion
$404 USD