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Our Studio > Materials & Gemstones

Materials & Gemstones

Precious Metals

Sterling Silver 925

Sterling silver consists of 92.5% pure silver (therefore also termed 925 silver).


Other metals like copper are added, as pure silver is too malleable to form and hold the shape of the piece.


Rhodium plating is used in order to avoid tarnishing of the silver.


Pure gold is soft and therefore alloyed with other metals in order to create a functional piece. Unlike silver, gold is resistant to chemical reactions and does not tarnish.


Gold in its natural form is yellow. Colored gold alloys such as white gold or gold with a reddish hue are created by adding other metals like copper, silver, and nickel. 



Rubies are red gemstones, a variety of the mineral corundum. Rubies are very hard, second only to diamonds.



Similar to Rubies in their composition, Sapphires are a variety of the mineral corundum. They are very hard, second only to diamonds, and come in all colors.


Aventurines are a variety of quartz. An aventurine is translucent with glistening mineral fragments which give it its shimmering effect.


Aventurines come in various colors, but the most common color is green.

Lapis Lazuli

Lapis are deep blue semi-precious stones known for their intense blue color.


During the Renaissance, Lapis were ground and used to make the expensive ultramarine blue which was used by famous painters like Titian, Vermeer, and Rembrandt.


Onyx is a variety of chalcedony quartz. It comes in many colors and is usually streaked with white bands.

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