Double sided stack rings. A new favourite! Tons of colours available. X Rocca Crystal Stack SelVon NYC Jewelry New Boho Sterling Silver Double Stack Ring Adjustable Size Its not hard to see why this trio ring stack is getting a lot of love S LONDON Rocco Ring Gold Garmentory 5 Tips To Create Your Perfect Ring Stack Nodeform. STACK & SAVE with 20% OFF all stacks Price as marked. Double the coolness with our gorgeous Rocco Double Ring Stack! This edgy stack features two Rocco Rings, with a stunning soft wave shape, the ultimate cool girl stack! Available in sizes 5,6,7,8,9.