wedding ring Free 3D print model

wedding ring. US size-8.75 (diameter 18.7 mm ). 14k gold weigth 2.55gr 18K gold weight 3 gr. Silver weight 2 gr. You can see the dimensions of the model on one of the photos presented here.
90% of my 3d models have been checked: made wax and finished product in gold or silver .Made in program Matrix+Rhinoceros.Model are for 3D printer or cnc machine. High polygonal model.Checked and fixed in the program Magics. Ready for the print.
Mesh: vertex count = 421957 facet count = 672358Volume = 199.380096 (+/- 1e-07) cubic millimeters