Diamond Query: Old European Cut vs. Round Brilliant Cut – Appeal, Gut Instinct, and Eye-Cleanliness


| Anonymous Reader


Hi Sebastian,

Can you let me know what your thoughts are on this GIA report and if this diamond is okay bearing in mind there is a fracture, knot and a few other blemishes. Thanks!

GIA Report 2181199657

Your Diamond Teacher |

Thank you for your inquiry. I am happy to help!

This round diamond is an old european cut, so we can’t use the guidelines we use for round brilliant cut diamonds. For European cut diamonds, it really comes down to how you like it aesthetically. Have you seen this diamond in person?

As for the clarity, VS2, I am not the least bit concerned about the clarity characteristics.

| Anonymous Reader


Hi Sebastian,

No Just saw it over the internet, felt it might have potential only if the price is right? What monies would you think are involved, and is the feathering a concern? Thanks!

Your Diamond Teacher |

The feather is not a concern. As far as pricing, I am not in the business of valuating or appraising. Since old European cut diamonds are rare, I would suggest comparing to a round brilliant cut diamond of similar criteria to at least give you a ball park.

| Anonymous Reader


Thanks for your time, I have attached another GIA report, and would like to ask, which diamond do you feel is the better choice and the reasons as to why that might be the case. Thanks!

GIA Report 1166668335

Your Diamond Teacher |

We are not comparing apples to apples, so-to-speak. One is an Old European cut and the other is a round brilliant cut. They are very different.

I can comment on the round brilliant cut diamond for your information. It does have very strong blue fluorescence. This means that the diamond may glow blue under strong UV light.

And the fluorescence may make the diamond appear hazy. Also, regarding color, have you seen a K color diamond in person? Are you okay that it has “warmth” and is not as white as diamonds of a higher color grade?

| Anonymous Reader


Thanks for the reply. The antiquated jewel of yesteryear appeal to me a lot more than the modern jewelry. I am guided toward the Old European Cut, even though in this case it will cost me a few thousand more, am I making the better choice???

Your Diamond Teacher |

You should go with your gut instinct. An Old European Cut diamond will usually cost more than its modern brilliant cut counterpart.

| Anonymous Reader


Thanks Sebastian,

Just one last question re the Paloma ring the GIA report also shows up a knot, should that be of any concern? Thanks for your assistance!

Your Diamond Teacher |

A knot inclusion is a non-issue. 🙂