Loose old European cut diamonds are a bit harder to find that the usual diamonds but they can be very nice.
The old European cut diamond is the direct descendant of the modern brilliant cut. It is the most common diamond you are likely to find in antique jewelry. Most of them tended to be lower cut grades, lower than G in fact, as the mines from which they originated did not produce very much in the way of colorless rough.
Old mine and old European cuts are sometimes recut as modern cuts in order to make them brighter but also old European cuts are often recut as modern brilliant to enhance the brilliance. Often old stones are remounted in new rings also.
Hence the importance of having a certificate with every stone to establish the authenticity, the grade and if possible the origin of the stone.
The cut of the stone is probably the most important as it establishes the brilliance of the stone.
Getting loose old European cut diamonds and having them reset is an excellent idea. If they are large enough and you can find a good quality cutter you can get them recut also to enhance the brilliance.
Old European cut diamonds are often found at estate and deceased auctions. Sotheby’s is a good source of old European cut diamonds.
As with any purchase of diamonds, always ensure that you checked the dealer for authenticity. Are they contactable by phone and have a fixed address. Do they offer a returns policy so you can claim a full refund if the stones are not as advertised.
Some common sense and due diligence also goes a long way when searching out any diamonds and especially when looking for loose old European cut diamonds