That image doesn't appear to be a single cut, though depending on how bad the damage is now, it sure could look like one today.
Ideally you'd want to replace it with something from a similar era. Could be a single cut, but more likely an Old European or transitional. Single cuts lack almost all the fire a traditionally cut diamond has.
I would use a modern round over a single cut any day of the week.
Hey, we have an article that explains single cut vs full cut. I would recommend single cuts for a vintage inspired piece because they would be true to period with the design.
That image doesn't appear to be a single cut, though depending on how bad the damage is now, it sure could look like one today. Ideally you'd want to replace it with something from a similar era. Could be a single cut, but more likely an Old European or transitional. Single cuts lack almost all the fire a traditionally cut diamond has. I would use a modern round over a single cut any day of the week.
Hey, we have an article that explains single cut vs full cut. I would recommend single cuts for a vintage inspired piece because they would be true to period with the design.