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Cushion|Natural|IGI

0.51ct E SI2 Cushion Natural Diamond

VG • E/SI2 • IGI 749531706

Shape and cutting style on the report: Square cushion modified brilliant

Certificate IGI 749531706

Diamond specifications and retailer prices

From £448 GBP
As of October 30, 2026
Save £382 GBP (46%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: £829 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 0.51ct natural cushion diamond

This 0.51ct natural cushion sits in the half to three-quarter carat band, graded E colour (colourless) and SI2 clarity (slightly-included), with a very-good cut grade and certified by IGI 749531706. Listed at 5 retailers as of October 29, 2026, with prices from £448 to £829, a £382 spread on the same certified stone. MOH London lists it at £829. 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

0.51
Carat
E
Colour
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceFaint
Crown angle38°
Pavilion angle38.1°
OriginNatural
Grading LabIGI
CertificateIGI 749531706
Dimensions4.48 × 4.40 × 3.15 mm
L/W Ratio1.02
Girdle conditionFaceted
Culet sizePointed
Top View
4.48 mm4.40 mm0.51 ctE / SI2
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateIGI 749531706
Side View
Table 60.0%Crown 38°Girdle: THK-VTKPavilion 38.1°Culet: NoneDepth 71.6%

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: Oct 30
Current: £829 GBP|Low: £448 GBP|High: £858 GBP|Avg: £558 GBP|-2.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 29, 2026
Retailer 3£448 GBP
Retailer 4£455 GBP
Retailer 5£503 GBP
Retailer 2£537 GBP
Retailer 6£552 GBP
MOH London£829 GBP

23 data points across 6 retailers

5 retailers£448 GBP to £829 GBP

B+
Cheapest Retailer
-
£448 GBP
B+
Retailer 2
-
£455 GBP
$610 USD
View
B+
Retailer 3
-
£503 GBP
$673 USD
View
B+
Retailer 4
-
£537 GBP
€685 EUR
View
Most Expensive
B
MOH London
4B39FD528 · Oct 29
£829 GBP
View
4 more retailers have this diamond
Prices start from £448 GBPSave up to £382 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+
0.51ct Cushion
£448 GBP