Certified natural gemstones.
Investment-grade gemstones acquired by AL MATIYA are certified by internationally recognised gemological laboratories. Certification supports authentication, transparency and provenance for institutional-grade assets.
Recognised laboratories
Reference laboratories used across our stones include GRS (GemResearch Swisslab), GIA (Gemological Institute of America), SSEF (Swiss Gemmological Institute) and Gübelin Gem Lab. Selection of the laboratory depends on stone type, origin and category.
Selected stones
Natural blue sapphires prized for saturation, clarity and geographical origin.
Market
Untreated stones with premier origin remain among the most sought-after colored gems.
Fine emeralds selected for vivid green, minimal clarity enhancement and provenance.
Market
Muzo and Chivor origin Colombians define the top tier of the modern emerald market.
Pigeon-blood rubies with strong fluorescence and negligible treatment.
Market
Unheated Burmese rubies of exceptional color represent the pinnacle of the category.
The rare pink-orange sapphire, defined by a precise blend of hues.
Market
Fine padparadschas above two carats trade at premiums driven by scarcity.
Neon copper-bearing tourmalines with the signature electric blue-green.
Market
Brazilian origin stones with strong neon saturation command the highest recognition.
Chrysoberyl variety exhibiting the color-change phenomenon from green to red.
Market
Strong color-change specimens above one carat remain exceptionally rare.
Historically valued red and pink spinels once mistaken for rubies in royal collections.
Market
Untreated Mahenge and Burmese material has re-emerged as a serious collector category.
Natural fancy colored diamonds — pink, blue, yellow, green and rarer grades.
Market
Fancy Vivid and Intense grades from historically closed mines lead the category.
Single-source gemstone with strong violet-blue color and pleochroism.
Market
Higher grades in larger sizes are increasingly recognised as a finite category.
A distinctive purple variety of sapphire with strong saturation and clarity.
Market
Unheated fine purple sapphires occupy a niche but appreciating market segment.
Certificate access
Selected laboratory certificates are available for authorised review through investor relations. Certificates are provided under confidentiality where appropriate.
