7x6mm overall diameter with 3x1.5mm, 4x2mm & 5x2.5mm marquise gems This is a threaded style piece, fitting into 16g/18g or 14g/12g threaded post. This jewelry is a two-part piece; this listing does not include the barbell shaft If you need a complete piece of threaded jewelry, make sure to purchase the threaded post in the appropriate size. Guaranteed against any manufacturing defects. ALL SALES ARE FINAL.