Here is resizing tip from @fluxjewelrystudio - “How I protect the s*** outta your stones if your ring needs to be sized...sometimes I use this thermopaste stuff, sometimes I submerge the area with stones into wet sand before heating. Always lots of boric acid paste flux! Diamonds, sapphires, and rubies can handle the heat of the torch when using these methods, but working on jewelry with other stones requires a fancy laser welder.” Thanks for letting me share this! We get a ton of questions about making repairs when there are stones involved, you always have to proceed with caution and the “red, white and blue” (ruby, diamond, sapphire :) are typically the stones that can handle it. Thermopaste is also great for protecting clasps when soldering on a chain. #solderingjewelry #thermopaste #heatprotectant