A modern and luxurious building houses, the Sapphire Gallery by XTEN Architecture. Designed with a white concept that offers the modern concept of a variety of angles and existing properties. This modern building called the Sapphire Gallery. Sapphire Gallery is designed by XTEN architecture and is located in Los Angeles, California. Homeowners want a home addition that will accommodate their contemporary art collection that includes works by famous artists, such as Gregory Crewdson, Uta Barth, Tomoroy Dodge and Jennifer Steinkamp.