Pierres / gemstones
Voici un aperçu des pierres que j’ai en stock et peux vous proposer, afin de réaliser un bijou personnalisé, ainsi qu’une collection de pierres dites « rares ». Certaines de ces pierres ne sont pas à vendre, mais je peux sur demande me procurer des pierres fines telles que rubis, saphirs, alexandrites etc ou faire des recherche pour des pierres plus rares telles que la taaffeite ou la bénitoite. Autant que possible je privilégie les pierres de taille modeste mais sans traitement, dans le cas contraire les traitements sont toujours indiqués (la majorité des saphirs et des rubis sont chauffés tout comme les zoisites (tanzanites) et les topazes bleus, tandis que les émeraudes sont huilées, les diamants et les perles irradiés).
Les pierres étant stockées dans un endroit spécifique, veuillez prendre rendez-vous à l’avance.
Here is an overview of some stones we can propose for custom jewels. Some of these are not for sale but I can get any kind of classic gem from an established dealer and gemmologue, and make research to get a specific rare gem like taaffeite or benitoite. I try to focus on modest gems but untreated as far as possible. Otherwise treatment is always indicated.
These stones are stored in a safe place, please contact me for an appointment.
Quartz with rutile inclusions 3ct / Greenish moonstone from India 7ct / Amethyst / Chalcedony 2.1ct / Massive pink quartz cab 60ct, translucent. / fire agate from Mexique / detail of a pietersite from Namibia / Opal from Ethiopia 3,2ct / Different pearls (peacock Thaiti, baroque Mabe, baroque Biwi lake, irradiated Akoya)
Ruby from Burma, not heated, usual strong reaction to uv light 0,18ct / an emerald from Brazil, oiled, 0,54ct / a fancy vivid VVS1 diamond untreated 0,03ct / a tsavorite garnet / a sapphire from the Umba valley, Tanzania, not heated / a small alexandrite with wonderful pleochroism (with red flashes but hard to capture) and the classic but moderate color change effect, depending on the light source.
A small natural untreated sapphire from the famous Umba valley in Tanzania. It has pleochroism and a moderate color change from purple to pink depending on the type of light source. 1,09ct
Tugtupite is a very rare member of the Sodalite groupe. Translucent gems are extremely rare and come from Greenland. Tugtupite is tenebrescent and has a strong reaction to UV. 1,18ct (not for sale)
(Rough stone dakotamatrix.com)
A rare double asterism ruby from Ceylan, untreated. The two stars are not aligned to form a 12 star but the effect is still pleasing. The ruby has a pleochroism, from blue to pink. 2,139ct
A very small but very rare untreated tourmaline from the famous Batalha mine in the Paraiba state, Brazil. The original brazilian mine is empty, and two other deposits were found but in Africa. 0,03ct (not for sale)
Benitoite is very rare. Gem grade crystals are found in only one mine in San Benito California. This gem is a bit included but has a good color. 0,32ct
Bastnäsite is a very rare carbonate, a piezoelectric stone and a rare earth mineral. Gem grade specimens are even rarer. This one is even more scarse at it features a color change efect, depending on the light source! From Zagi Mountains, Pakistan. 2,09ct (not for sale)
rough stone image crystalclassics.co.uk
Manganotantalite is a tantalum oxyde. Gems grade are very rare and very difficult to cut, of this quality even more. From Grandal, Konar Province, Afghanistan. 0,2ct (not for sale)
rough stone picture icminerals.com
Väyrynénite is a phosphate, extremely rare to find as gem grade, most of time very included. This amazing specimen is almost not included and present a very strong color. From Shengus in Haramosh mountains, Skardu district, Pakistan. 0,2ct (not for sale)
rough stone picture dakotamatrix.com
Quartz with lepidocrocite inclusions (hematite family), also called red fire quartz or strawberry quartz 3,36ct
A scarse royal blue sapphire from the Pailin region in Cambodia, not heat, 0,2ct (we can get others on request).