Here is Tumblr Themes that have beautiful Masonry Grid Blog Styles. They designed with a unique style and mobile friendly.
Optic comes packed full of jQuery awesomeness and shows your posts in all their glory.
The Shift Tumblr theme is ideal for any blog, from a personal blog to portfolios.
Masonry With Drag And Drop Tumblr Theme is inspired heavily by the jQuery Masonry plugin.
Eris is a grid-based photography and fully responsive Tumblr theme that uses masonry layout.
Archon is a Tumblr portfolio theme made for artists, graphic designers, photographers.
Admiral is packed with customization options and features.
GridLine is a responsive 4 column Masonry Tumblr theme with main features such as infinite scroll, double size posts, and photo lightbox.
A gallery style tumblr theme with a edge cutting sidebar.
Syracuse is a responsive theme built with an adjustable gradient background.