4mm Blue Sapphire
Quality Lab Grown Sapphire Pearls.
-Best Heat Retention
-Increased Surface Area
Do NOT use rubbing alcohol or any cleaning solution while your gemstone is hot, It can cause thermal shock and crack it. Use a dry cotton swab and heat to clean.
Do Not apply a direct flame to your gemstone or it will cause thermal shock.
Slowly heat and cool inside your banger.
*we are not responsible for gemstones cracking due to not following cleaning procedures.