Dear Stevian,
This could have originated in a couple of places, most likely in Europe unless it is a knockoff.
There are ancient chess pieces similar to these that originated in Greece and Italy centuries ago.
Chess, in the middle ages, was thought to be a metaphor for sexuality, the power of females (NOTE the movements of the queen), and seduction.
The fact that it is resin and not marble or other stone, indicates it is a modern piece, as you said, about 30 years old.
To a collector of chess boards and pieces, or at auction for people collecting that time period, the complete set would fetch a broad range of 250 to 500 dollars.
I would like to give you a better estimate of the pieces.
If you can find a marking on the bottom and inside of any of the boxes, boards, or pieces, it would be helpful in determining a more exacting value. I am looking for: location and maker, primarily. If there is a foreign language on the pieces, that would also be helpful in narrowing this down. I this can be determined to be an original piece of a known manufacturer or artist, it could bring much more.
YOUR PAYMENT AND BONUS IF ANY MAY BE TAX DEDUCTIBLE

Edward M. Johnson