If you have a girlfriend who you would love to propose to, but you are afraid to because she is not the type of girl to accept a traditional, boring solitaire diamond engagement ring that anyone else would wear, and that could be bought at just any boring jeweler, then you no longer have to worry because there are now new options for you to give your love so that she will feel like you have spent hours looking for something that fits her style perfectly, and it won't take hunting all of the ultra urban and hipster shops to find it.
If your girlfriend likes different and exotic designs in things that you give her, then black tungsten rings can be an option in what you use to propose to her. Black tungsten rings have a variety of designs and thicknesses, so even if you get a simple black ring, she will feel like you have had a ring crafted specifically for her tastes. But if you think that simple black tungsten rings are not what you want to use for wedding rings, then perhaps a tungsten ring with a fusion of metallic colored and black colored tungsten in an intricate interwoven design, representing the way your two lives have been intricately interwoven into each other's life.
But if you do not think that your girlfriend will want to be proposed to with a set of wedding rings at all, and you still want to get her something to commemorate that wonderful occasion, then you may want to get her titanium bracelets, which would represent the strength and bond of your love for each other. So even if your girlfriend is not like everyone else, you can still show her that you love her, and she will be able to see that have put thought and effort into giving her a gift that was truly from you to her.