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Cushion|Natural|IGI

0.51ct G SI2 Cushion Natural Diamond

VG • G/SI2 • IGI 741597223

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

Certificate IGI 741597223

Diamond specifications and retailer prices

From £413 GBP
As of October 30, 2026
Save £348 GBP (46%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: £761 GBP at MOH London · As of November 1, 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 G colour (near-colourless) and SI2 clarity (slightly-included), with a very-good cut grade and certified by IGI 741597223. Listed at 5 retailers as of October 30, 2026, with prices from £413 to £761, a £348 spread on the same certified stone. MOH London lists it at £761. 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
G
Colour
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceFaint
Crown angle36.7°
Pavilion angle36.6°
OriginNatural
Grading LabIGI
CertificateIGI 741597223
Dimensions4.50 × 4.39 × 3.01 mm
L/W Ratio1.03
Girdle conditionFaceted
Culet sizePointed
Top View
4.50 mm4.39 mm0.51 ctG / SI2
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateIGI 741597223
Side View
Table 64.0%Crown 36.7°Girdle: THK-VTKPavilion 36.6°Culet: NoneDepth 68.6%

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: £761 GBP|Low: £238 GBP|High: £783 GBP|Avg: £513 GBP|-2.7%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 1, 2026
Retailer 3£413 GBP
Retailer 4£427 GBP
Retailer 5£461 GBP
Retailer 2£500 GBP
Retailer 6£508 GBP
MOH London£761 GBP

24 data points across 6 retailers

5 retailers£413 GBP to £761 GBP

B+
Cheapest Retailer
-
£413 GBP
B+
Retailer 2
-
£427 GBP
$572 USD
View
B+
Retailer 3
-
£461 GBP
$618 USD
View
B
Retailer 4
-
£500 GBP
€638 EUR
View
Most Expensive
B
MOH London
9C03D126B · Nov 1
£761 GBP
View
4 more retailers have this diamond
Prices start from £413 GBPSave up to £348 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
£413 GBP