NET women’s size 6? Silver with white sapphire ring with paperwork never worn

NET women’s size 6? Silver with white sapphire ring with paperwork never worn. I’m unsure of size but it’s between a 6-7 so that’s why I have included a photo showing measuring tape under it to give an idea of the correct size or possibly determine measurement. Never worn and have paperwork to show what item is (see photos). Excellent condition