Rare & Exceptional Gemstones
A curated selection of the world's rarest gem species — from collector-grade rarities to legendary stones of extraordinary scarcity, with rarity scores of 7 or above.
Fine alexandrite with strong color change is exceptionally rare.
Benitoite is extremely rare as a facetable gem and closely associated with California.
Musgravite is one of the rarest facetable gemstones.
Painite is one of the most famous ultra-rare collector minerals.
Paraiba tourmaline is exceptionally rare, especially vivid copper-bearing neon blue material.
Natural pink diamonds are among the rarest and most valuable gems; supply has been severely restricted since the closure of the Argyle mine in 2020.
Poudretteite is an exceptionally rare collector gemstone.
Red beryl is one of the rarest beryl varieties and is usually found in small sizes.
Gem-quality serendibite is exceptionally rare.
Taaffeite is an exceptionally rare faceted collector gem.
Fine black opal is among the rarest and most valuable opal types.
Fine cobalt-blue spinel is among the rarest gem-quality spinels, commanding prices rivaling fine sapphire.
Color change garnet is one of the rarest garnet categories, especially with strong color shift.
Fine transparent grandidierite is extremely rare.
Ha├╝yne is exceptionally rare in faceted form; top blue material from the Eifel region of Germany is virtually unobtainable commercially.
Fine imperial jadeite is extremely rare and highly valued.
Gem-quality jeremejevite is extremely rare and mostly collected by specialists.
Padparadscha sapphire is one of the rarest sapphire color varieties, especially untreated balanced pink-orange stones.
Sinhalite is extremely rare in faceted form; most known faceted specimens are of museum or advanced collector quality.
Fine chrysoberyl catÔÇÖs eye with sharp chatoyancy and good color is very rare.
Color change sapphire is rare, especially with a strong and attractive color shift.
Demantoid is rare, and classic Russian stones with horsetail inclusions command strong collector interest.
Emerald is commercially available, but vivid stones with high clarity and minor treatment are very rare.
Imperial topaz is rare, especially fine untreated reddish-orange to pinkish-orange stones.
Maxixe-type blue beryl is rare and often unstable in color, making durable gem material uncommon.
Clean, vividly saturated orange spinel is rare; most material is brownish or muted in tone.
Fine vivid red spinel rivaling ruby is very rare and highly valued by collectors.
Ruby is commercially available, but fine untreated vivid red ruby is very rare.
Zultanite-quality color-change diaspore is rare and source-limited.
Blue sapphire is common in commerce, but fine untreated vivid blue stones, especially top origins, are very rare.
Fine boulder opal with strong play-of-color is rare.
Chrome tourmaline is rare and valued for saturated green color.
Natural vivid yellow diamonds are rare; lighter yellow stones treated for color are more common in the market.
True hiddenite is rare compared with kunzite and other spodumene varieties.
Fine gem kornerupine is rare and mostly seen in specialist collections.
Liddicoatite is the calcium-dominant tourmaline species; well-formed faceted gems are uncommon and primarily of interest to collectors.
Vivid hot-pink and neon-pink spinel, especially from Mahenge, is increasingly rare and collector-prized.
Pure vivid purple spinel is uncommon; most material trends toward grayish or brownish purple.
Fine red zircon is much rarer than blue or brown zircon.
Sapphire is widely traded, but fine untreated stones and rare phenomena/colors are much scarcer.
Well-defined, sharp six-rayed star in a fine red stone is increasingly rare.
Star sapphire is uncommon, and stones with sharp stars, good transparency and attractive color are very rare.
Tanzanite is geographically restricted and fine saturated blue-violet stones are rare.
Tsavorite is rare, especially vivid green stones above two carats.