Check to see if the pearl has been artificially coloured
This isn’t, in itself, necessarily a problem. Typically though, purists will look for naturally coloured pearls and they might well command higher prices.
Things that might indicate the pearl has been artificially coloured include:
- colour seemingly “wearing off” the outer shell;
- a very dark core (indication of possible irradiation to change colours);
- a very visible stratification of colour change on the inside of the pearl.
The final two above assume your pearl has a drill hole that you can look into with magnification.
Examine the regularity and symmetry of shape
Tiny irregularities of shape can be seen or felt – and that’s typically a good sign!
If your pearl is perfectly round and perfectly smooth over its surface, then you’re probably looking at an artificial not natural (whether wild or cultured) pearl made from synthetic materials.
However, even if … Read the rest