@QBCares by on the same platform: Why not just have everyone on the same version like quickbooks online?
We exclusively use 95% platinum ruthenium because it offers the best combination of color, hardness, and workability. It also may be stamped "PLAT" according to FTC guidelines.
One of the great benefits to pure platinum is that it's "hypo allergenic." Well, technically, it's non-reactive, therefore, alloy choice becomes critical in keeping platinum jewelry "non-reactive" or "hypo allergenic." There are several alloys out there that make platinum jewelry reactive - in otherwords, people develop skin irritations. The most notable "reactive" alloy is platinum/cobalt. This alloy was developed with the intent of making platnium easier to cast (but with little concern of the loss of benefit to the end customer). It also adds magnetic properties to platinum...not fun when trying to separate steel from bench-sweeps!
Another reactive alloy would be platinum/copper: the biochemistry of certain people causes them to "leech" copper out of jewelry alloys. Although platinum copper is not as common, it's out there. For more information from the Platinum Guild, click here and here.
Sometimes important details that contribute to great results are overlooked in models we receive for platinum casting (which is another reason to consider having us make your model)!
However, because great results and happy jewelers is the goal, we include quick fixes and modifications as part of our service. Here's a quality control action list to implement before shipping your model:
1) Filling in holes that obstruct the flow of the metal
2) Filling in cracks or air-bubbles in models
3) Touching up surface flaws that would require filling in with metal in the casting ("innies" from broken of RP supports etc).
4) We prefer to carefully fill-in holes on certain design features because they can be easily drilled out, and to minimize platinum waste.