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.
Diamond prices typically increase at a higher rate from one weight / price bracket to the next. For example, price per carat for diamonds in the size bracket 1.00â1.49 carats could be $8,000, while price per carat in the bracket 1.49â1.99 carats can jump to $11,000.In a graph below you can see how fast the price per carat jumps with diamond weight moving from one carat weight bracket to another.ecause of this fact, you may occasionally hear some jewelers referring to a 1-carat diamond a âfour grainer,â which means in the past 1 carat was equal to four grains of rice. The weight of smaller diamonds is often expressed as points, not carats. One carat is equal to 100 points.