The portfolio of the German gemstone house comprises twelve selected investment-grade colored gemstones.
The selection is based on clearly defined gemological and market structure factors. Only untreated stones of the highest quality—supported by established international demand and a verifiable market structure are considered.
The investment universe is deliberately narrow. The goal is not broad diversification, but a disciplined, quality-driven selection within a globally fragmented market.
Each stone is individually certified, externally appraised, and uniquely assigned.
Ruby: Rarity, strong demand, and a historically stable price base.
Blue Sapphire: Hardness, international market acceptance, and color–clarity–size as key price drivers.
Emerald: Scarcity, characteristic inclusions, and strong influenced by origin.
Pink Spinel: Often underestimated for its resilience; increasingly in focus among institutional buyers.
Tanzanite/Tsavorite: Distinct color spectra, limited occurrences, and a growing collector base.
Aquamarine/Mandarin Garnet/Morganite/Peridot/Red and Green Tourmaline: A secondary segment with demonstrable demand, selected in top quality.