Create your theme, how you want, with no coding knowledge
Price: $65 (Starter License)
Ultimatum is not just a WordPress theme, it is a design suite and powerful application builder allowing control over all aspects of your site, without you having to touch any codes.  Features include: unlimited templates, easy style editor, drag & drop building ability, unlimited short-codes, unlimited fonts, lots of slideshows to choose from (create your own gallery), create unlimited forms, responsive design and more!
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A bold portfolio theme for freelancers or creative agency
Price: $40
Volumes is a beautiful theme that showcases your work through a filterable portfolio, 3 custom page templates and 5 widgets.  The theme also includes custom backgrounds, post formats, responsive design and more.
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More portfolio themes: Portfolio WordPress Themes

Unique and flexible responsive business theme
Price:
Single Theme Package: $45
InkThemes Membership (All Themes): $125

Regal is a theme that is flexible enough to fit into many types of niches, including: business, portfolio, personal, hotel, or wedding website. Theme features include 8 color scheme options, a gallery template, theme options panel and more.
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Sharp, unique and eye-catching responsive theme
Price: $35
Apollo is a theme that stands out.  This theme comes loaded with not only a beautiful layout and theme skin, but also great features, including: extensive post formats to allow you to add videos (YouTube, Vimeo and Self Hosted), images, galleries, quotes, links and more to your posts.  It comes with a filterable portfolio, 3 custom widgets, social options to be used in the header, short-codes, and a choose your own theme “color-picker”.
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More business themes: Best Business WordPress Themes

A calming photography theme
Price:
Sharpness Child Theme $30.00
Backbone – Standard Pack + Papuros Child Theme $79.00
Backbone – Developer Pack + Papuros Child Theme $129.00

Sharpness is a beautiful responsive photography theme that showcases striking images using a white background, big slider for portfolio thumbnails, custom theme options, and more.
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More responsive themes: Responsive WordPress Themes