Gemstones break down into five different categories for pricing purposes: traditional, new classics, collector gemstones, connoisseur gems and affordable gems. They all have basic price ranges; however, it all depends on quality. The ranges are supposed to give you an idea of the relationship between different stones and pricing structures.
Traditional Gemstones : Stones in this category are ruby, blue sapphire and emerald. They all have a distinguished appeal and history and are the most valuable of the colored gemstones. Rubies and emeralds are normally priced higher than sapphires because they are rarer. Prices for these three range from $250 from $10,000 per carat.
New Classics : These are the new stars of gemstones and include tanzanite, aquamarine, imperial topaz, tourmaline and tsavorite garnet. Prices in this category range from $50 to $1,000 per carat for a quality store. However, tsavorite is the exception, with quality stones of this kind reaching up into the $3,000 per carat range.
Connoisseur Gemstones : These stones are specialized because of their rarity. This category includes black opal, jadeite, pink topaz, chrysoberyl cat’s-eye, fancy colored sapphires and alexandrite. They range from $250 to $5,000 per carat, with the exception of alexandrite, which can fetch up to $10,000 per carat.
Collector’s Gemstones : These stones are not found in quantity, so when you get access to them, they can be a great investment. Gemstones found in this category include moonstone, morganite, spinel and zircon. Price ranges in this category range in the hundreds instead of the thousands.
Affordable Gemstones : These stones combine vivid color with affordability. Gemstones in this category include citrine, peridot, blue topaz, amethyst, white opal, onyx and amber. Prices in this category range from $5 to $100 per carat.