Many of our high quality gems come with internationally recognized certificates of renowned gemmological institutes.
For uncertified single gems (not for calibrated goods) with a minimum value of € 100 we issue a gemstone passport (as we call it) upon request.
Apart from exact weight & size and information on origin, treatments and other characteristics, this document also contains a photo of the gemstone.
Our gemstone passports are downloadable pdf files.
Here´s an example of a gemstone passport:
Gemstone-Passport-Tanzanite.pdf
Austria´s largest selection of small round gems. Ruby, sapphire, yellow sapphire, pink sapphire, purple sapphire, emerald, tsavorite, aquamarine, spessartite, demantoid, amethyst, citrine, iolite, peridot, rhodolite, tourmaline ... read more
We from the Vienna Gem Center strive to achieve high ethical standards to the best of our knowledge and abilities.
We buy rubies and emeralds exclusively from gem cutters that get their rough materials from responsible mine owners.
All other gems we buy directly from producers or through brokers and intermediaries which have earned our trust in many years, sometimes decades, of cooperation.
We pay fair prices and we never ever buy from unknown or dubious sources!