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Cushion|Natural|IGI

0.51ct K SI2 Cushion Natural Diamond

VG • K/SI2 • IGI 749531710

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

Certificate IGI 749531710

Diamond specifications and retailer prices

From €224 EUR
As of November 6, 2026
Save €493 EUR (69%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: €717 EUR at MOH London · As of November 4, 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 K colour (faint-tinted) and SI2 clarity (slightly-included), with a very-good cut grade and certified by IGI 749531710. Listed at 5 retailers as of November 4, 2026, with prices from €224 to €717, a €493 spread on the same certified stone. MOH London lists it at €717. 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
K
Colour
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle39.3°
Pavilion angle38.5°
OriginNatural
Grading LabIGI
CertificateIGI 749531710
Dimensions4.46 × 4.35 × 3.22 mm
L/W Ratio1.03
Girdle conditionFaceted
Culet sizeNone
Top View
4.46 mm4.35 mm0.51 ctK / SI2
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI 749531710
Side View
Table 63.0%Crown 39.3°Girdle: THK-VTKPavilion 38.5°Culet: NoneDepth 74.0%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 6
Current: €717 EUR|Low: €224 EUR|High: €743 EUR|Avg: €477 EUR|-2.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 6, 2026
Retailer 2€224 EUR
Retailer 4€427 EUR
Retailer 5€427 EUR
Retailer 3€572 EUR
MOH London€717 EUR

44 data points across 5 retailers

5 retailers€224 EUR to €717 EUR

A
Cheapest Retailer
-
€224 EUR
B+
Retailer 2
-
€427 EUR
View
B+
Retailer 3
-
€427 EUR
View
B
Retailer 4
-
€572 EUR
View
Most Expensive
B
MOH London
C8F3922F8 · Nov 4
€717 EUR
£630 GBP
View
4 more retailers have this diamond
Prices start from €224 EURSave up to €493 EUR

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
0.51ct Cushion
€224 EUR