At Stuller, we stock over forty different casting grains and alloys to meet your metal needs, and for those who prefer to mix their own alloys, we carry a variety of master alloys that can be added to fine gold. All our precious metals are SCS-certified 100% recycled.


Yellow Gold


We offer an array of yellow gold casting grains: 10K, 14K, 18K, 22K, and 24K. The assortment ranges from a light, lemon yellow to our Euro yellow, which is a rich green-yellow color. Euro yellow is European friendly, meaning it meets Europe’s gold content requirements.

White Gold


We offer a selection of white gold casting grains, including the standard nickel white gold, which ranges from a soft white to a bright white color.

Our X1 alloys are a proprietary alloy with a higher nickel content. They have grade one bright white color and don’t require rhodium plating. We also offer palladium white gold, which is a great hypoallergenic option due to its lack of nickel.

Rose Gold


We offer rose gold in 18K, 14K, and 10K. Rose gold is an alloy of pure gold and copper and sometimes contains trace amounts of silver. Our rose gold karats range from deep red (10K) to medium red (14K) to light red (18K), varying only in durability, color, and price.

Our rose gold grain is refined and has less copper, ensuring better structure and mechanical properties for casting. Unlike white gold, rose gold requires no plating to retain its rosy color.

Green Gold


We offer green gold, an alloy of yellow gold and silver, in 14K and 18K. Our green gold is easily workable and doesn’t have to be annealed as often as yellow gold. Green shades range from medium green to rich green.



Platinum Ruthenium

Platinum Ruthenium (.95/.05) is best for rolling, machining, and fabrication. It delivers good results when casting.

Platinum Iridium

Platinum Iridium (.90/.10) is a great multi-purpose alloy. It can be used for many applications, but it’s best for fabrication.

Platinum Cobalt

Platinum Cobalt (.95/.05) is the best platinum alloy for casting. It has a very fine grain, is slightly ferro-magnetic, and oxidizes around 1000˚C. The oxidation is easily removable.


Palladium is 95% pure, lighter than platinum, has a natural white color, and is hypoallergenic, making it a great alternative for those sensitive to nickel. Our palladium is European friendly, tarnish resistant, and specially formulated to have the hardness of 14K gold.



We offer a selection of silver metals, including our two proprietary metals: Sterlium Plus and Continuum.

Sterlium Plus

Sterlium Plus is a tarnish resistant, nickel-free, Stuller-developed metal. It’s more malleable than traditional sterling silver, is fire scale free, and polishes to a high luster finish.


Continuum is another one of our proprietary metals and contains more than 95% precious metal content. Continuum sterling silver is fire scale and nickel free, oxidation and tarnish resistant, and superb for casting.


SCS Certification


This certification verifies all our gold, silver, platinum, and palladium products are 100% certified recycled metals.

The Tools Tech Team experts are here for you. Give them a call at 1-800-877-7777 ext. 4300 BenchJeweler Articles