Here is Tumblr Themes that have beautiful Masonry Grid Blog Styles. They designed with a unique style and mobile friendly.
Optic – A Responsive Masonry Tumblr Theme
Optic comes packed full of jQuery awesomeness and shows your posts in all their glory.
Quadro – A Masonry Theme for Tumblr
Shift – A Responsive Masonry Tumblr Theme
The Shift Tumblr theme is ideal for any blog, from a personal blog to portfolios.
Mikovic – Masonry With Drag And Drop Tumblr Theme
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 Tumblr Portfolio Theme
Archon is a Tumblr portfolio theme made for artists, graphic designers, photographers.
Jugas Minimal Tumblr Blog
Admiral Tumblr Theme
Admiral is packed with customization options and features.
GridLine – Responsive Grid Theme
GridLine is a responsive 4 column Masonry Tumblr theme with main features such as infinite scroll, double size posts, and photo lightbox.
Visto Multi-column Responsive Tumblr Theme
Pluto Minimal Tumblr Blog
April – Responsive Tumblr Theme
Prospekt – Responsive Sidebar Theme
A gallery style tumblr theme with a edge cutting sidebar.
Raheeq – Material Design Tumblr Theme
Wave Creative Portfolio Tumblr Theme
Orlando Tumblr Blog
Syracuse – Responsive Grid Theme
Syracuse is a responsive theme built with an adjustable gradient background.
Pro – Responsive Tumblr Theme
City – Responsive Portfolio – Tumblr Theme