male signet ring celtic pattern 3D print model

male signet ring celtic patternFour sizes. US size 8.5/ 10/ 11/12.5(diameter 18.5mm\20mm\20.7mm and 21.8 mm).
14k gold weight 10.2-11.3 gr. Gem size 14x14x2.5 mm.There 3dm file for editing and stl for printing. 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 . High polygonal model.Made in program Matrix+Rhinoceros. Model was checked and fixed in program Materialise Magics .Ready for the print. Mesh: vertex count = 218343 facet count = 377872Volume = 996.67 (+/- 1e-07) cubic millimeters