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Cushion|Natural|IGI

0.51ct J SI1 Cushion Natural Diamond

VG • J/SI1 • IGI 720529895

Shape and cutting style on the report: Marquise brilliant

Certificate IGI 720529895

Diamond specifications and retailer prices

From €232 EUR
As of November 6, 2026
Save €491 EUR (68%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: €723 EUR 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 J colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI 720529895. Listed at 9 retailers as of November 1, 2026, with prices from €232 to €723, a €491 spread on the same certified stone. MOH London lists it at €723. 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
J
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle31.6°
Pavilion angle40.3°
OriginNatural
Grading LabIGI
CertificateIGI 720529895
Dimensions9.05 × 4.14 × 2.42 mm
L/W Ratio2.19
Girdle conditionFaceted
Culet sizePointed
Top View
9.05 mm4.14 mm0.51 ctJ / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 720529895
Side View
Table 62.0%Crown 31.6°Girdle: THN-STKPavilion 40.3°Culet: NoneDepth 58.5%

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: Nov 6
Current: €723 EUR|Low: €232 EUR|High: €731 EUR|Avg: €451 EUR|-1.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 2€232 EUR
Retailer 3€382 EUR
Retailer 5€416 EUR
Retailer 7€485 EUR
Retailer 6€511 EUR
Retailer 4€576 EUR
MOH London€723 EUR

28 data points across 7 retailers

9 retailers€232 EUR to €723 EUR

A
Cheapest Retailer
-
€232 EUR
Retailer 2
-
€338 EUR
View
Price last confirmed 9 days ago
A
Retailer 3
-
€382 EUR
View
B+
Retailer 4
-
€416 EUR
View
B+
Retailer 5
-
€430 EUR
View
B+
Retailer 6
-
€485 EUR
View
B+
Retailer 7
-
€511 EUR
View
B+
Retailer 8
-
€576 EUR
View
Most Expensive
B
MOH London
48F9D8D51 · Nov 1
€723 EUR
£636 GBP
View
8 more retailers have this diamond
Prices start from €232 EURSave up to €491 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
€232 EUR