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Cushion|Lab Grown|IGI

1.00ct E SI2 Cushion Lab Grown Diamond

VG • E/SI2 • IGI LG843650591

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG843650591

Diamond specifications and retailer prices

From £113 GBP
$151 USD
As of October 30, 2026
Save £939 GBP (89%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £1,053 GBP at MOH London · As of October 25, 2026
View at MOH London

About this 1ct lab-grown cushion diamond

This 1ct lab-grown cushion sits in the classic one-carat band, graded E colour (colourless) and SI2 clarity (slightly-included), with a very-good cut grade and certified by IGI LG843650591 or 843650591. Listed at 10 retailers as of October 25, 2026, with prices from £113 to £1,053, a £939 spread on the same certified stone. MOH London lists it at £1,053. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.00
Carat
E
Colour
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle31.1°
Pavilion angle36.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG843650591
Dimensions7.09 × 5.04 × 3.39 mm
L/W Ratio1.41
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.09 mm5.04 mm1.00 ctE / SI2
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG843650591
Side View
Table 70.0%Crown 31.1°Girdle: MED-THKPavilion 36.1°Culet: NoneDepth 67.3%

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 30
Current: £1,053 GBP|Low: £113 GBP|High: £1,064 GBP|Avg: £299 GBP|-1.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 30, 2026
Retailer 7£113 GBP
Retailer 5£169 GBP
Retailer 10£171 GBP
Retailer 9£191 GBP
Retailer 2£213 GBP
Retailer 3£227 GBP
Retailer 4£239 GBP
Retailer 6£330 GBP
Retailer 8£349 GBP
MOH London£1,053 GBP

25 data points across 10 retailers

10 retailers£113 GBP to £1,053 GBP

A
Cheapest Retailer
-
£113 GBP
$151 USD
Final sale: no returns
Retailer 2
-
£169 GBP
View
Price last confirmed 13 days ago
B+
Retailer 3
-
£171 GBP
$228 USD
View
B+
Retailer 4
-
£191 GBP
$254 USD
View
B+
Retailer 5
-
£213 GBP
View
A
Retailer 6
-
£227 GBP
€288 EUR
View
B+
Retailer 7
-
£239 GBP
View
B+
Retailer 8
-
£330 GBP
$440 USD
View
B+
Retailer 9
-
£349 GBP
SGD 628 SGD
View
Most Expensive
B
MOH London
LG843650591 · Oct 25
£1,053 GBP
View
9 more retailers have this diamond
Prices start from £113 GBPSave up to £939 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
1.00ct Cushion
£113 GBP