Brazilianite

Carat weight is meaningful because clean, facetable crystals are limited and larger gems are rare. Stones above 3–4 carats of fine color and clarity command noticeable premiums among collectors.

Color is a primary value factor. The most sought-after stones display bright, medium-toned yellow to yellow-green with good saturation. Overly pale, brownish or muddy colors are less desirable and priced more modestly.

Because brazilianite often contains internal fractures and inclusions, eye-clean stones are relatively scarce. Fine gems show good transparency and minimal inclusions; obvious fractures, especially those reaching the surface, significantly reduce durability and value.

Cutting is challenging due to cleavage and brittleness. Well-executed cuts with good proportions, symmetry and polish are valued highly, both for their beauty and for the skill required. Poor cutting wastes color and increases the risk of damage.

Most gem-quality brazilianite has come from classic pegmatites in Brazil, with smaller occurrences elsewhere. Production has been limited and sporadic, and much of the best material has already been mined, placing natural constraints on supply.

Demand is driven primarily by collectors and connoisseurs of rare yellow-green gemstones. It is not widely recognized in the mainstream jewelry market, but its distinctive color and rarity support solid niche demand.

Recent Trends: niche but stable collector interest, with fine, well-documented stones achieving strong prices through specialist dealers and auctions.