Use the Swarovski® trademark only as an ingredient brand, not as the brand for the finished goods.
The essential and fundamental principle in referencing the Swarovski trademark is this: The fact that Swarovski® Branded Crystals are used only as ingredients in your own finished products (or the finished products you are reselling) must be completely clear.
It must be made clear who is the producer and/or marketer of the finished goods, and there must be no potential for confusion or misunderstanding that these goods are manufactured or marketed or sponsored or endorsed by Swarovski.
In this regard, it is important to remember that Swarovski markets finished and semi-finished jewelry and other goods under the Swarovski trademark. Accordingly, there is a real potential for consumers to believe that your goods (or the goods you resell) are manufactured or marketed or sponsored or endorsed by Swarovski, unless you are clear in your advertising and other marketing communications that you are (or your supplier is) the producer and/or marketer of your products and that Swarovski® Branded Crystals are used only as an ingredient.
Any use of the Swarovski trademark in a manner that might suggest that your product (or the product you resell) is manufactured or marketed or sponsored or endorsed by Swarovski could be misleading to consumers and could potentially subject you to liability for trademark infringement, false advertising, and unfair competition.