Gem - Marquise Faceted

Not Reviewed
Equation / Last modified by KurtHeckman on 2018/03/13 17:03
`"weight"_"carat" = `
Rating
ID
KurtHeckman.Gem - Marquise Faceted
UUID
73dc1be5-6343-11e3-84d9-bc764e202424

The Weight of a Marquise Faceted Gem calculator computes the approximate carat weight of an Marquise Faceted colored stone (e.g. Diamond, Ruby or Emerald)MarquiseCut.png

INSTRUCTIONS: Choose units and enter the following:

  • (GEM) a choice of the type of gem
  • (L) the length of the gem
  • (W) the width of the gem
  • (D) the depth of the gems
  • (B) a pad of the weight with a percentage for any central bulge

Marquise Faceted 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 Math / Science

The length to width ratio that defines a marquise faceted cut is between 1.5 and 3.0. 

The weight of a Marquise Faceted gem 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, CLICK HERE.  

Gem Types

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

Other Gem Cuts

Gem carat weight calculators:AllCuts.png  Gem Cuts