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Cushion|Lab Grown|IGI

3.67ct H SI1 Cushion Lab Grown Diamond

ID • H/SI1 • IGI LG522237401

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG522237401

Diamond specifications and retailer prices

From £1,815 GBP
As of November 6, 2026
Save £7,883 GBP (81%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £13,843 GBP at MOH London · As of November 5, 2026
View at MOH London

About this 3.67ct lab-grown cushion diamond

This 3.67ct lab-grown cushion sits in the three to five carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG522237401 or 522237401. Listed at 7 retailers as of November 6, 2026, with a 434% 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

3.67
Carat
H
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.4°
Pavilion angle30.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG522237401
Dimensions8.78 × 8.50 × 5.45 mm
L/W Ratio1.03
Girdle conditionFaceted
Culet sizePointed
Top View
8.78 mm8.50 mm3.67 ctH / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG522237401
Side View
Table 61.5%Crown 38.4°Girdle: STK-VTKPavilion 30.9°Culet: NoneDepth 64.1%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: £13,843 GBP|Low: £1,815 GBP|High: £14,066 GBP|Avg: £8,196 GBP|-1.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 3£1,815 GBP
Retailer 10£6,271 GBP
Retailer 6£7,361 GBP
Retailer 7£7,550 GBP
Retailer 4£7,624 GBP
Retailer 8£7,683 GBP
Retailer 5£8,820 GBP
Retailer 2£9,698 GBP
Retailer 9£9,822 GBP
MOH London£13,843 GBP

39 data points across 10 retailers

7 retailers£1,815 GBP to £9,698 GBP

B+
Cheapest Retailer
-
£1,815 GBP
B
Retailer 2
-
£7,361 GBP
View
Final sale: no returns
B
Retailer 3
-
£7,550 GBP
View
Retailer 4
-
£7,624 GBP
View
Price last confirmed 26 days ago
B
Retailer 5
-
£8,820 GBP
View
B
Retailer 6
-
£9,698 GBP
View
Most Expensive
MOH London
LG522237401 · Nov 5
£13,843 GBP
View
Price under review
6 more retailers have this diamond
Prices start from £1,815 GBPSave up to £7,883 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+
3.67ct Cushion
£1,815 GBP