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Marquise|Natural|IGI

0.51ct K SI2 Marquise Natural Diamond

K/SI2 • IGI 776603826

Shape and cutting style on the report: Marquise modified brilliant

Certificate IGI 776603826

Diamond specifications and retailer prices

From £495 GBP
€631 EUR
As of November 3, 2026
1 retailer carries this diamond
Only listing: £495 GBP at Yorxs
Only one retailer lists this diamond right now, and it is shown above, so there is nothing to unlock. Similar diamonds are carried by several retailers.
View at Yorxs

About this 0.51ct natural marquise diamond

This 0.51ct natural marquise sits in the half to three-quarter carat band, graded K colour (faint-tinted) and SI2 clarity (slightly-included) and certified by IGI 776603826. Listed at a single retailer as of November 3, 2026. If it later appears at another store, Carat Hunter will surface the price comparison automatically. 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
-
Cut

Specifications

Cut
PolishVery Good
SymmetryGood
FluorescenceFaint
Crown angle29.9°
Pavilion angle39.8°
OriginNatural
Grading LabIGI
CertificateIGI 776603826
Dimensions8.74 × 3.95 × 2.78 mm
L/W Ratio2.21
Girdle conditionFaceted
Culet sizeVery Small
Top View
8.74 mm3.95 mm0.51 ctK / SI2
OriginNatural
PolishVery Good
SymmetryGood
FluorescenceFaint
CertificateIGI 776603826
Side View
Table 47.0%Crown 29.9°Girdle: THK-VTKPavilion 39.8°Culet: Very SmallDepth 70.4%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 3
Current: £495 GBP|Low: £483 GBP|High: £497 GBP|Avg: £492 GBP|+2.4%
November 3, 2026
Yorxs£495 GBP

12 data points across 1 retailer

1 retailer

B
Yorxs
846EDA314 · Nov 3
£495 GBP
€631 EUR
View

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B
0.51ct Marquise
£495 GBP