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Cushion|Lab Grown|IGI

1.04ct E SI1 Cushion Lab Grown Diamond

EX • E/SI1 • IGI LG811699434

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG811699434

Diamond specifications and retailer prices

From £113 GBP
As of November 6, 2026
Save £625 GBP (85%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £1,052 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 1.04ct lab-grown cushion diamond

This 1.04ct lab-grown cushion sits in the classic one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG811699434 or 811699434. Listed at 14 retailers as of November 6, 2026, with a 554% 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

1.04
Carat
E
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.8°
Pavilion angle41.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG811699434
Dimensions7.54 × 5.07 × 3.39 mm
L/W Ratio1.49
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.54 mm5.07 mm1.04 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG811699434
Side View
Table 61.0%Crown 32.8°Girdle: MED-STKPavilion 41.3°Culet: NoneDepth 66.9%

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: £1,052 GBP|Low: £113 GBP|High: £1,060 GBP|Avg: £341 GBP|-0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 7£113 GBP
Retailer 3£210 GBP
Retailer 2£216 GBP
Retailer 5£238 GBP
Retailer 8£242 GBP
Retailer 4£306 GBP
Retailer 6£374 GBP
MOH London£1,052 GBP

42 data points across 8 retailers

14 retailers£113 GBP to £737 GBP

A
Cheapest Retailer
-
£113 GBP
Final sale: no returns
A
Retailer 2
-
£143 GBP
View
B+
Retailer 3
-
£176 GBP
View
A
Retailer 4
-
£210 GBP
View
A
Retailer 5
-
£216 GBP
View
A
Retailer 6
-
£231 GBP
View
A
Retailer 7
-
£238 GBP
View
A
Retailer 8
-
£242 GBP
View
A
Retailer 9
-
£306 GBP
View
B+
Retailer 10
-
£347 GBP
View
B+
Retailer 11
-
£374 GBP
View
B+
Retailer 12
-
£445 GBP
View
B
Retailer 13
-
£737 GBP
View
Most Expensive
MOH London
LG811699434 · Oct 29
£1,052 GBP
View
Price last confirmed 8 days ago
13 more retailers have this diamond
Prices start from £113 GBPSave up to £625 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
1.04ct Cushion
£113 GBP