Zoisite

Larger carat weights can significantly influence pricing, as evidenced by the P10-P90 spread, which ranges from $105 to $2,016 per carat. The median price of $546 per carat suggests that while smaller stones are more accessible, larger, high-quality specimens command premium prices.

Color plays a crucial role in determining the value of Zoisite, with vibrant, saturated hues fetching higher prices. Stones with deep blue or rich green tones are particularly sought after, reflecting the preferences of collectors and designers.

Clarity is an important factor, though Zoisite can tolerate some inclusions without a significant drop in value. High-quality stones with minimal inclusions are preferred, especially in larger sizes.

The cut of a Zoisite stone can enhance its visual appeal and marketability. Well-executed cuts that maximize color and brilliance tend to attract higher prices, particularly in the collector market.

Tanzania remains the primary source of Zoisite, particularly for the highly prized blue variant known as Tanzanite. The current supply situation is stable, but fluctuations in mining practices can impact availability.

Demand for Zoisite is driven by its unique color properties and increasing interest in colored gemstones among collectors and designers. The rising popularity of colored gemstones in general has further fueled interest in this distinctive stone.

Zoisite prices have shown a notable upward trend, with a 13.1% increase over the past month. This positive sentiment is supported by recent news highlighting the gemstone's role in local economies and its growing appeal in the market.