What is a common trait found in sapphires sourced from Madagascar?

Sapphires from Madagascar are recognized for having a natural color, which is a highly valued trait within the gem market. The natural colors found in these sapphires, such as blue, pink, and yellow, arise from the geological conditions in which they formed, making them particularly sought after by collectors and jewelers.

While other traits, such as high clarity and the potential for heat treatment, can also be associated with sapphires in general, the specific hallmark of Madagascar’s gemstones is their ability to retain their natural hue without enhancement. This makes their color more authentic and appealing as compared to stones that may have undergone treatments to improve their appearance.

Furthermore, color zoning— the presence of different colors or shades within a single gemstone—while it can occur in sapphires, is not a defining characteristic of those sourced specifically from Madagascar. Rather, the emphasis on natural colors highlights the uniqueness of sapphires from this region and reinforces their value in the jewelry market.