Item Information

Dimensions (mm) not provided
Weight (carats) not provided
Certified Gemstone


Most details shown in the large image are actually not visible to the naked eye, large photographs are meant to show details. We have made the image the closest possible to the original item when viewed on computer screen. Depending on the viewers' monitor settings, the colour of the item may appear a few shades lighter or darker in comparison to the original item. 

Green Demantoid Garnet, in the Andradite mineral species belonging to the Garnet group, is by far the rarest and most valuable garnet. Particularly fine Demantoids can command prices of thousands of dollars per carat. 

Demantoid is important to Gem aficionados for four reasons: its great rarity, its color, its high dispersion and its distinctive inclusion.  Dispersion, or the breaking of White light into spectral colors, is measured at 0.044 for Diamond and 0.057 for Demantoid.  Demantoid's name means "diamond" in German, an indication of its beautiful luster. It should be noted that the fire in a demantoid is best seen in the lighter, less saturated gems. Because of its high dispersion, Demantoid looks great in the same type of lighting as diamond, i.e., multi-point (as opposed to diffuse) lighting.

Typically crystals are small and not plentiful, generally under 1 Carat. Specimens over 1 carat are uncommon and stones over 2 carats count as very rare.  Fine demantoids above 5 carats can be considered world-class pieces. Demantoid is among the most expensive of all garnets and is a valued Collectors Gemstone. 



PRODUCT      : Natural Demantoid Garnet

QUANTITY      : 1

WEIGHT (ct)   0.81 carat 

SIZE (mm)      : 6.0 x 4.7 x 3.3 mm (Take note of its SMALL size in MILLIMETER)

COLOR           : Green

SHAPE           : Oval

CLARITY         : SI


HARDNESS   : 6.5 - 7.0

ORIGIN            : Madagascar, Africa



IF                      Free of inclusions under a loupe with 10x magnification

VVS                 Microscopic inclusions barely seen under a loupe with 10x magnification

VS                    Very slight inclusions visible only to the scrutiny of the close naked eye

SI                      Small inclusions easily seen to the close naked eye

I                         Heavy or large inclusions obvious to the naked eye

Transparent   Transmitting light without serious diffusion / may have rutile or other inclusions

Translucent    Allowing light to pass through, but not transparent

Opaque           Does not allow light to pass through



Weight and size of gemstone/item may vary slightly from piece to piece due to difference in calibration of our weighing and measuring scales compared to those used by buyers.

Colour may also not appear exactly as in real life due to variation in computer monitor resolution and lighting used during photo shooting. Our photos are taken under fluorescent lighting; sometimes Torch Light and Flash Light are also used. We will do our very best to represent the accurate pictures of all our items.

$86.00 USD


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Pricing & Details

Auction ID 323720
Watchers 13 watching
Viewed 2,848 times
Starts 14th Dec 2012 12:47am PST

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