The Weight of a Cushion Cut Gem calculator computes the approximate carat weight of a square or rectangular Cushion Faceted colored stone (e.g. Ruby).
INSTRUCTIONS: Choose units and enter the following:
Cushion Cut Gem Weight (Wt): The calculator returns the weight in carats. However, this can be automatically converted to compatible units via the pull-down menu.
The CLICK HERE.is a function the volume and the specific gravity. The volume is estimated base on the gem's shape and dimensions. The specific gravity is dictated by the type of gem. For the specific gravity of different gem,
The gems supported in this calculator include: Agate, Alexandrite, Almandite garnet, Amethyst, Andalusite, Aquamarine, Beryl, Bloodstone, Blue Topaz, Carnelian, Cats eye, Chalcedony, Chrysoberyl, Citrine, Corundum, Demantoid Garnet, Diamond, Emerald, Golden beryl, Green beryl, Kunzite, Lapis Lazuli, Morganite, Onyx, Opal, Precious topaz, Pyrope garnet, Quartz, Rhodolite garnet, Rose Quartz, Ruby, Sapphire, Sardonyx, Smokey quartz, Spessartite garnet, Spinel, Tanzanite, Topaz, Tourmaline, Tsavorite garnet, Turquoise, Yellow topaz, and Zircon