Kool-Jool In 8 oz Jar GemOro Always verify dial compatibility before

Always verify dial compatibility before purchase

7mm diameter insert stake

making it well suited for delicate metalwork

8mm wide 121-41 14K White Gold 2

tempered steel for strength and durability

Kool-Jool In 8 oz Jar GemOro Always verify dial compatibility beforeKool Jool is a protective gel designed to shield heat sensitive stones and organic materials during soldering. Applied directly to stones or surrounding metalwork, it acts as a thermal barrier that absorbs and dissipates heat before it can reach delicate materials. Whether you're working with organics like pearl, coral, and amber or fragile mineral stones such as emerald, turquoise, opal, or dyed stones, Kool Jool helps reduce the risk of heat damage