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Cushion|Lab Grown|IGI

1.50ct E SI1 Cushion Lab Grown Diamond

ID • E/SI1 • IGI LG539217479

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG539217479

Diamond specifications and retailer prices

From £173 GBP
As of November 6, 2026
Save £1,307 GBP (88%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £1,479 GBP at Do Amore Diamonds · As of November 2, 2026
View at Do Amore Diamonds

About this 1.5ct lab-grown cushion diamond

This 1.5ct 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 LG539217479 or 539217479. Listed at 7 retailers as of November 2, 2026, with prices from £173 to £1,479, a £1,307 spread on the same certified stone. Do Amore Diamonds lists it at £1,479. 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

1.50
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.8°
Pavilion angle37.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG539217479
Dimensions6.90 × 6.50 × 4.24 mm
L/W Ratio1.06
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
6.90 mm6.50 mm1.50 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG539217479
Side View
Table 58.0%Crown 32.8°Girdle: MED-VTKPavilion 37.7°Culet: NoneDepth 65.2%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: £1,479 GBP|Low: £106 GBP|High: £1,479 GBP|Avg: £628 GBP
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 7, 2026
Retailer 7£173 GBP
Retailer 6£330 GBP
Retailer 10£341 GBP
Retailer 9£349 GBP
Retailer 11£410 GBP
Retailer 2£471 GBP
Retailer 3£503 GBP
Retailer 4£681 GBP
Retailer 5£848 GBP
Retailer 8£919 GBP
Do Amore Diamonds£1,479 GBP

12 data points across 11 retailers

7 retailers£173 GBP to £1,479 GBP

A
Cheapest Retailer
-
£173 GBP
Final sale: no returns
B+
Retailer 2
-
£330 GBP
View
B+
Retailer 3
-
£471 GBP
View
B+
Retailer 4
-
£681 GBP
View
Retailer 5
-
£848 GBP
View
Price last confirmed 9 days ago
B
Retailer 6
-
£919 GBP
View
Most Expensive
B
Do Amore Diamonds
27-C9766A81E · Nov 2
£1,479 GBP
$1,980 USD
View
6 more retailers have this diamond
Prices start from £173 GBPSave up to £1,307 GBP

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
1.50ct Cushion
£173 GBP