Agate moved along the Silk Road as a primary commodity, traded alongside gold and precious gems. This is a provenance that most stones don't have, predating every modern gemological authority by several thousand years.
Quality & Value
The use is established across fine jewelry. Safety Hook clasps appear in high-end and estate pieces because their added security is valued with the same seriousness as the object's craftsmanship.
Expertise & Authority
Ross-Simons can speak to jewelry value credibly because it has served customers across every price point for more than seventy years. That perspective is genuinely hard to replicate.