We guarantee that all our sterling silver components and chains are at least .925. All our sterling silver is nickel and cadmium free.
Sterling silver must be at least 92.5% silver. The 7.5% alloy in sterling silver is made up largely of copper. ( There might be a bit of another proprietary metal formula that the manufacturer uses to make it stronger, but we are not privy to the formula. ) It does not contain nickel in the 7.5% alloy that makes up 925 silver.
There are so many types of metal sensitivities. There are people who are simply allergic to Sterling Silver. Often these people can only wear high carat gold (smaller percentage of base metals in the mix). If your customer is very sensitive to copper, they may have a problem with sterling silver. If your customer is very sensitive to brass, they may have a strong reaction to gold filed (the core is brass).
- Storage and packaging is important to keep your silver brighter longer. Some dyes from strings and gift bags can cause tarnish. We used to use dyed brown wool for tags for labeling products, all the silver touching the wool would tarnish but nothing else.
- Leaving jewelry in gift boxes, without sealing the silver in a bag, will leave the sterling exposed to air and any chemical that can be in the puffy filling or dye from the box.
- Mixing silver with other metals may also accelerate darkening.
- Exposure to fluorescent lights can also accelerate tarnish.
- Certain things, like dampness and sun exposure can accelerate oxidation.
- Certain environments, like a salon/spa (chemicals in the air) will also cause your silver to darken faster.
- At the home, near/in a bathroom or a window. Dampness is the very worst for sterling. Simple things, such as a hot day and slightly sweating hands, can also accelerate tarnish.