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Cushion|Lab Grown|IGI

1.74ct E SI1 Cushion Lab Grown Diamond

ID • E/SI1 • IGI LG602387946

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG602387946

Diamond specifications and retailer prices

From £211 GBP
HK$2,200 HKD
As of October 28, 2026
Save £651 GBP (75%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £862 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 1.74ct lab-grown cushion diamond

This 1.74ct 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 LG602387946 or 602387946. Listed at 7 retailers as of October 28, 2026, with prices from £211 to £862, a £651 spread on the same certified stone. MOH London lists it at £862. 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

1.74
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.4°
Pavilion angle38.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG602387946
Dimensions8.36 × 6.53 × 4.38 mm
L/W Ratio1.28
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
8.36 mm6.53 mm1.74 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG602387946
Side View
Table 60.0%Crown 33.4°Girdle: MED-STKPavilion 38.9°Culet: NoneDepth 67.1%

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: Oct 28
Current: £862 GBP|Low: £211 GBP|High: £1,449 GBP|Avg: £549 GBP
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 29, 2026
Retailer 8£211 GBP
Retailer 5£236 GBP
Retailer 9£320 GBP
Retailer 10£333 GBP
Retailer 2£336 GBP
Retailer 6£384 GBP
Retailer 7£432 GBP
Retailer 4£461 GBP
Retailer 11£756 GBP
MOH London£862 GBP
Retailer 12£949 GBP
Retailer 3£1,449 GBP

2 data points across 12 retailers

7 retailers£211 GBP to £862 GBP

A
Cheapest Retailer
-
£211 GBP
HK$2,200 HKD
A
Retailer 2
-
£236 GBP
View
B+
Retailer 3
-
£320 GBP
$426 USD
View
A
Retailer 4
-
£336 GBP
View
A
Retailer 5
-
£384 GBP
$511 USD
View
A
Retailer 6
-
£432 GBP
$575 USD
View
Most Expensive
B
MOH London
LG602387946 · Oct 29
£862 GBP
View
6 more retailers have this diamond
Prices start from £211 GBPSave up to £651 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
1.74ct Cushion
£211 GBP