Heated and unheated sapphires can both be natural. This guide explains what the difference means, how treatment status affects rarity and value, and what to ask before you buy or seek a valuation.
Color is only the start. Discover what truly drives colored gemstone value — from saturation and transparency to treatments, origin, and documentation — before you buy, sell, or insure.
Caram will exhibit at GJX Tucson 2026, presenting a focused selection of rare emeralds, sapphires, rubies, and spinels from a seven-generation family gemstone legacy.
