Investment-Grade Gemstones
Gemstones historically sought by collectors and investors for their rarity, durability, and long-term value potential. All stones shown reach $5K/ct or above at the top of the market.
Fine untreated imperial jadeite is among the most valuable gems.
Strong color change and fine clarity make alexandrite extremely valuable.
Among the rarest facetable gem minerals.
Copper-bearing neon color and origin disclosure drive value.
Fine Colombian-type vivid green emerald with minor treatment can command very high prices.
Price depends on 4Cs, fancy color, natural/synthetic origin, and certification.
Facet-grade painite is extremely rare.
Transparent blue-green stones are exceptionally rare.
Fine untreated vivid red ruby, especially Burmese-type material, can reach exceptional prices.
Imperial jadeite can reach extreme prices; nephrite is usually less costly.
Fine taaffeite is extremely rare and collector-driven.
The padparadscha color boundary is debated; major lab confirmation is important.
Transparent faceted material is very scarce.
Top Lightning Ridge black opal is among the most valuable opal.
Transparent faceted material is very rare.
Sharp centered eye and honey body color bring premiums.
Fine unheated Kashmir-type blue sapphires are among the highest valued blue gems.
Fine untreated blue, padparadscha, and special phenomena sapphires command the highest prices.
Fine red and cobalt-blue spinel are highly valuable.
Strong attractive color change is rare and significantly increases value.
Fine blue stones from San Benito County are highly collectible.
Red beryl is extremely rare and usually occurs in small sizes.
Strong blue-to-red or green-to-red change is rare.
Fine blue crystals are prized by collectors.
Russian stones with horsetail inclusions command premiums.
Sharp centered stars, good body color, transparency, and large sizes bring premiums.
Untreated vivid stones over 2 ct are rare.
Vivid untreated stones are much more valuable than pale or heated material.
Fine pinkish orange imperial topaz is rare.
Pattern, brightness, and attractive matrix shape matter.
Fine vivid green can resemble tsavorite or emerald.
Large vivid blue-violet stones are more valuable.
Fine saturated red-pink rubellite is much more valuable than pale pink tourmaline.
Pure vivid orange mandarin material is most prized.