1 On average, a sofa bed can cost anywhere from $150 for a lower end model to as high as $1,400 for a deluxe bed.2  The popular Handy Living CAC4 on Amazon retails for $360 to $450. 3  For instance, Target sells a variety of sofa beds that come in different designs, sizes, and functions. Type. 2  A pull-out sofa bed will usually be much more expensive than a futon. 3  Quality. 4  Some futons can be purchased for as low as $100, but the quality of the frame and mattress are not as high.
1 Diamonds of the same carat weight can vary in size. 2  For example, a one-carat round diamond could measure 5.9 mm in diameter, while another one-carat round diamond could be 6.5 mm wide. 3  Broader diamonds with larger millimeter measurements create greater visual impact.
The relative size of a diamond is measured by carat(ct) weight. A 1/4 carat diamond weighs the equivalent of 50 milligrams, or 0.05 gram. Full one carat diamonds are the most common carat weight used in Engagement Rings and wedding rings.