Jewelry represents
Traditional items of jewelry are like images. Like representations of themselves. Images of ordinary things such as crosses, Mercedes emblems and hearts. Eagles, dolphins and wolves are also popular.
What the images represent does not seem to be that important. Wearing these symbols does not mean you need to have a particular relationship with dolphins, God or Mercedes cars.
The significance of a dolphin or a cross made of gold simply seems to be that it is an item of jewelry – something valuable. Something you were given by your grandmother when you were confirmed or by your children on your 60th birthday.