This piece is made with Sterling Silver and titanium wires. This double finger ring features a dark indicolite tourmaline crystal (looks black in most lighting, but hold it to where you can see light passing through and you'll see its blue). Also features demantoid garnet crystals x2, blue spinel crystals x2, and red/pink spinel crystals x2. All raw crystals in this piece! Even the crystal in between the fingers on the band is a raw tanzanite crystal :)
The way sizing works with this. One ring hole is a 6.5 and one ring hole is an 7. A little wiggle room in these is ok so if one of your fingers you want to wear it on falls somewhere in the 6 - 7 range and the other is between a 6-6.5 this will work well for you. It also works great if the sizes are exact!