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Cushion|Lab Grown|IGI

0.90ct E SI1 Cushion Lab Grown Diamond

ID • E/SI1 • IGI LG418020623

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG418020623

Diamond specifications and retailer prices

From £559 GBP
$744 USD
As of October 28, 2026
Save £487 GBP (47%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: £1,046 GBP at Diamond Exchange Canada · As of October 27, 2026
View at Diamond Exchange Canada

About this 0.9ct lab-grown cushion diamond

This 0.9ct lab-grown cushion sits in the just-under-one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG418020623 or 418020623. Listed at 2 retailers as of October 27, 2026, with prices from £559 to £1,046, a £487 spread on the same certified stone. Diamond Exchange Canada lists it at £1,046. 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

0.90
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishVery Good
SymmetryGood
FluorescenceNone
Crown angle41.8°
Pavilion angle31.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG418020623
Dimensions6.14 × 5.75 × 3.24 mm
L/W Ratio1.07
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
6.14 mm5.75 mm0.90 ctE / SI1
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateIGI LG418020623
Side View
Table 60.0%Crown 41.8°Girdle: MED-VTKPavilion 31.3°Culet: NoneDepth 56.3%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Oct 28
Current: £1,046 GBP|Low: £226 GBP|High: £1,542 GBP|Avg: £1,027 GBP|+2.6%
Diamond Exchange Canada
Retailer 2
Retailer 3
Retailer 4
September 30, 2026
Retailer 2£559 GBP
Retailer 4£639 GBP
Diamond Exchange Canada£1,046 GBP
Retailer 3£1,528 GBP

53 data points across 4 retailers

2 retailers£559 GBP to £1,046 GBP

B
Cheapest Retailer
-
£559 GBP
$744 USD
Most Expensive
C
Diamond Exchange Canada
1867369672 · Oct 27
£1,046 GBP
CA$1,935 CAD
View
1 more retailer has this diamond
Prices start from £559 GBPSave up to £487 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.

B
0.90ct Cushion
£559 GBP