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Cushion|Lab Grown|IGI

2.50ct E SI1 Cushion Lab Grown Diamond

EX • E/SI1 • IGI LG750529150

Shape and cutting style on the report: Square cushion modified brilliant

Certificate IGI LG750529150

Diamond specifications and retailer prices

From $595 USD
As of October 30, 2026
Save $864 USD (59%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $1,459 USD at MOH London · As of October 29, 2026
View at MOH London

About this 2.5ct lab-grown cushion diamond

This 2.5ct lab-grown cushion sits in the two to three carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG750529150 or 750529150. Listed at 5 retailers as of October 29, 2026, with prices from $595 to $1,459, a $864 spread on the same certified stone. MOH London lists it at $1,459. 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

2.50
Carat
E
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.1°
Pavilion angle34.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG750529150
Dimensions7.60 × 7.59 × 5.06 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
7.60 mm7.59 mm2.50 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG750529150
Side View
Table 61.0%Crown 38.1°Girdle: MED-THKPavilion 34.7°Culet: NoneDepth 66.7%

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 30
Current: $1,459 USD|Low: $570 USD|High: $1,469 USD|Avg: $800 USD|-0.6%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
October 30, 2026
Retailer 3$595 USD
Retailer 2$641 USD
Retailer 4$662 USD
Retailer 5$782 USD
MOH London$1,459 USD

42 data points across 5 retailers

5 retailers$595 USD to $1,459 USD

B+
Cheapest Retailer
-
$595 USD
A
Retailer 2
-
$641 USD
£505 GBP
View
A
Retailer 3
-
$662 USD
View
B+
Retailer 4
-
$782 USD
View
Most Expensive
B
MOH London
LG750529150 · Oct 29
$1,459 USD
£1,149 GBP
View
4 more retailers have this diamond
Prices start from $595 USDSave up to $864 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
2.50ct Cushion
$595 USD