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.
â An 8 carat diamond for moments that truly matter. These are the type of stones that will make brilliant moments last forever. The origin of diamonds is still something of a mystery even today, and an 8 carat diamond is almost as mysterious as can be. Most of the diamonds found in the mines are 1 and 2 carats only. The chances of uncovering an 8 carat diamond are very small. Carat refers to a diamondâs weight, and one full carat weighs 200 milligrams, or 0.007 ounces. It is not a unit of size, but the size of a diamond does increase together with carat weight. A stone weighing 8 carats is of a majestic size and very rarely seen.