Our rhinestones are backed with gold foil and come in various colors. If you prefer to remove the foil, you can soak them in salt and vinegar. Please note that not all colors are available in all sizes. Please refer to the drop-down menu to check availability for your desired size. We also offer packs of randomly assorted colors, including pink tourmaline, apricot, olive, peridot, alexandrite, and others, containing approximately 150 pieces. The 3mm stones fit both 3mm bezel cups and 4mm prong settings, while the 5mm stones fit both 5mm bezel cups and 6mm prong settings. Lastly, the 7mm stones fit 7mm bezel cups and 8mm prong settings.