terhi tolvanen is a finnish designer...i'm not sure if the artist is male or female...but by her work i'm guessing she is female...i base this purely on intuition & the choices she makes in materials...common and at times kitschy items used in elegant interpretations of jewelry design.
as you can see with her nail polish bottom rings, there is a wit & whimsey about her work.
then you see these "deconstructed turquoise" stones made into exquisite earrings...
or real wood branch part with amethyst pieces purposely bolted down into place :)
please visit her site... i know you will enjoy yourself.