This new style called Mother-Of-Pearl is gorgeous but it's extremely high maintenance as you have to bleach your entire head platinum blonde just to start then your professional colorist will layer in metallics and pastel colors. It's also going to take a lot of deep conditioning to keep the shiny smooth look. So MAKE SURE your stylist knows what they're doing or you'll end up with a grey mess.
As you can see, the effect is designed to look like the inside of a mother-of-pearl shell. Beautiful if done right!