I think any obelisk can work in contemporary decor, but there is no doubt that clear crystal looks very modern.
All via Houzz
Clear obelisks almost seem like ghosts in the room. They are there, but they don't take up any space. They look mysterious in a darkened room, and add glamour to a coffee table, the entryway, or on top of a book!
In this Paris apartment a stone obelisk is made interesting by all the detail in the stone itself. It sits on a mantel against a wonderful periwinkle painted wall.
The classic Italian decorating firm, Studio Peregalli, does sumptuous interiors. These antique specimen marble obelisks look the part sitting on an antique table near damask covered chairs in this Venetian house.
I love everything Kit Kemp does. She is a master of color and a wonderful mixer of high and low objects to create interest. She and her husband own and operate Firmdale Hotels, all of which she decorates. This is their Charlotte Street Hotel in London with funky white stone/marble and brass obelisks on the mantel.
In the New Orleans home of adman Peter Rogers, he has created a warm and masculine bedroom with lots of wood and classic touches. The two obelisks of different heights and materials are joined on a console table under a mirror along with a yellow lion! Fun.
Keep an eye out and you will see obelisks in the chicest of places!