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Cushion|Lab Grown|IGI

1.53ct E SI1 Cushion Lab Grown Diamond

ID • E/SI1 • IGI LG825687197

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG825687197

Diamond specifications and retailer prices

From £144 GBP
As of November 6, 2026
Save £543 GBP (79%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £766 GBP at MOH London · As of October 18, 2026
View at MOH London

About this 1.53ct lab-grown cushion diamond

This 1.53ct 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 LG825687197 or 825687197. Listed at 13 retailers as of November 6, 2026, with a 377% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.53
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle31.8°
Pavilion angle37.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG825687197
Dimensions7.62 × 5.85 × 4.07 mm
L/W Ratio1.30
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.62 mm5.85 mm1.53 ctE / SI1
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG825687197
Side View
Table 72.0%Crown 31.8°Girdle: MED-THKPavilion 37.6°Culet: NoneDepth 69.6%

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: Nov 6
Current: £766 GBP|Low: £144 GBP|High: £1,293 GBP|Avg: £443 GBP|-3.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 6, 2026
Retailer 7£144 GBP
Retailer 4£182 GBP
Retailer 2£204 GBP
Retailer 10£267 GBP
Retailer 6£283 GBP
Retailer 8£287 GBP
Retailer 5£303 GBP
Retailer 3£348 GBP
Retailer 9£409 GBP
Retailer 12£525 GBP
Retailer 13£635 GBP
Retailer 11£687 GBP
MOH London£766 GBP

43 data points across 13 retailers

13 retailers£144 GBP to £687 GBP

A
Cheapest Retailer
-
£144 GBP
Final sale: no returns
A
Retailer 2
-
£182 GBP
View
A
Retailer 3
-
£204 GBP
View
A
Retailer 4
-
£267 GBP
View
A
Retailer 5
-
£283 GBP
View
B
Retailer 6
-
£287 GBP
View
Retailer 7
-
£303 GBP
View
Price last confirmed 23 days ago
Retailer 8
-
£348 GBP
View
Price last confirmed 7 days ago
B+
Retailer 9
-
£409 GBP
View
B+
Retailer 10
-
£525 GBP
View
Retailer 11
-
£635 GBP
View
Price last confirmed 16 days ago
B
Retailer 12
-
£687 GBP
View
Most Expensive
MOH London
LG825687197 · Oct 18
£766 GBP
View
Price last confirmed 19 days ago
12 more retailers have this diamond
Prices start from £144 GBPSave up to £543 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
1.53ct Cushion
£144 GBP