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Cushion|Lab Grown|IGI

0.73ct E SI1 Cushion Lab Grown Diamond

GD • E/SI1 • IGI LG559281522

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG559281522

Diamond specifications and retailer prices

From £184 GBP
$245 USD
As of October 28, 2026
Save £880 GBP (83%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £1,064 GBP at MOH London · As of October 25, 2026
View at MOH London

About this 0.73ct lab-grown cushion diamond

This 0.73ct lab-grown cushion sits in the half to three-quarter carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade and certified by IGI LG559281522 or 559281522. Listed at 7 retailers as of October 25, 2026, with prices from £184 to £1,064, a £880 spread on the same certified stone. MOH London lists it at £1,064. 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

0.73
Carat
E
Colour
SI1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.3°
Pavilion angle38.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG559281522
Dimensions5.70 × 4.75 × 3.23 mm
L/W Ratio1.20
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
5.70 mm4.75 mm0.73 ctE / SI1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG559281522
Side View
Table 58.0%Crown 32.3°Girdle: MED-THKPavilion 38.3°Culet: NoneDepth 68.0%

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: £1,064 GBP|Low: £128 GBP|High: £1,076 GBP|Avg: £349 GBP|-1.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 29, 2026
Retailer 5£128 GBP
Retailer 4£184 GBP
Retailer 2£216 GBP
Retailer 7£238 GBP
Retailer 3£277 GBP
Retailer 6£360 GBP
MOH London£1,064 GBP

25 data points across 7 retailers

7 retailers£184 GBP to £1,064 GBP

A
Retailer 1
-
£128 GBP
$170 USD
Price last confirmed 13 days ago
B+
Retailer 2
-
£184 GBP
$245 USD
View
B+
Retailer 3
-
£216 GBP
View
B+
Retailer 4
-
£238 GBP
$317 USD
View
B+
Retailer 5
-
£277 GBP
View
B
Retailer 6
-
£360 GBP
$479 USD
View
Most Expensive
B
MOH London
LG559281522 · Oct 25
£1,064 GBP
View
6 more retailers have this diamond
Prices start from £184 GBPSave up to £880 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
0.73ct Cushion
£184 GBP