It can take around 300 x4.5mm stones to do two heels and 100x3mm +100x 2.8mm flat stones to finish it off.
Time wise can take anything from 2-6hour for heels,depending on the pair of heels and size of stones, too small a stone and you will be there all night.
You will need -for Stoning a high heel- roughly for a size 4:
Flat back Rhinestones*: 1500 x 4.5mm + 100 x 3mm + 100 x 2.8mm for one shoe
*Swarovski Crystals can be found on line and I tend to use these as the quality is better and they give a better sparkle.
Glue : need a glue that dries clear and wont melt the stones if your using plastic, I use applie glue that the bead shop sells, but I might use a stronger glue UHU on the stones that get the most wear, eg toe and inside shoe faces that can rub against each other but its far more tricksy to use.
Cocktail sticks : Can chop the ends off for a blunt tool.
White tack : For the ends of the cocktail sticks...or you can use a cotton bud dipped in melted candle wax and left to harden.
Pins : Thin long dress making pins will do nicely.
Cotton thread : To help as a guide line.
For Spraying a pair of shoes first: Hobby can of spray paint/Duct or Gaffa tape / Box to spray in or newspaper / Tinfoil (bakerfoil) / Face Mask
Step 1: Masking Off:
If they need soleing for grip whilst wear, best to take them to the cobbler first if they are new before stoning them as its hard for them to do it after and might ruin all your hard work. If you wear insoles to cushion your feet and the shoes are new?
Best to put them in now and walk around all evening in them as there is nothing worse than finding out later that they hurt like hell and all your work is to waste.
*Oooh top tip form my gran, you might want to cut out where your toes go in your insoles, especially in heels, so they don't cram your toes and will give them a bit of space over the insole lip to wriggle in the end, so you don't get the dreaded toe cramp at the end of the evening.
I want to use these gold shoes I am doing here for photo work, as well as wear, so I am spraying the base to match, other wise I would mask off the base as well as the heel for normal use.
You need to mask off the areas you don't want painted with tape before you start and give it a few coats so the colour is even. You can use masking tape, but it can tend to let the paint run if your a bit heavy handed with the paint, the tape gets too damp and curls up at the edges letting in any further coats added and a furry smudged paint edge.
A plastic coated sticky tape (I tend to use duct tape rather than electrical tape as it tends to work better) can mask off the inside of the shoe up to the inside seam to stop paint being on the inside of the shoe and then flaking off on your stockings when wearing them later.