The way we see it, the joy of any new fashion experience can and should be sustainable.
The fashion industry is the world's second most polluting industry, after oil. Producing fashion wastes and pollutes our water, erodes our natural resources, and contributes to climate change by releasing greenhouse gases. Jewelry in particular raises another host of concerns, such as the use of hazardous chemicals like cyanide and the health and safety of miners.
The Switch model is grounded in concepts of share economies and recycling. You get to wear the good stuff, which lasts longer anyway. And when you're ready to switch it for something new, you're giving someone else a new fashion experience, rather than letting it go to waste. Consume less, produce less, everybody wins!