While not really a design category it is more a design option. For years, rings were almost always yellow gold. Then white gold took over the market. Today many brides want a combination of metal colors so they can have a wider wardrobe option. Whether it is rose and white gold or yellow and white gold, any combination can be made.
Many of the designs talked about in the category options have a way to incorporate more than one color of gold. This feature allows endless options to what may be too boring or plain for some wearers. A splash of gold colored differently is just the touch to add a person’s personality and make the item more unique.