Spessartite Garnet Value, Price, and Jewelry Information

Fancy Brilliant Emerald Cut Spessartite Garnet by Daniel Stair

Spessartite is somewhat rare. As with the other garnets, it always occurs in a blend with other species. Gems with the highest spessartite content are a light orange. Those with an almandine content are reddish, to red brown in hue.

Spessartite Value

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Garnet Value via Gem Price Guide

Top Color: oR, R, PR, rP 6/4

Almandine	All sizes
	to /ct

Fine Color Andradite: G 5/4

Andradite	All sizes
	to /ct

Chrome Pyrope	All sizes
	to /ct

Color Change	.5 to 1 carat	1 to 6 carats
Africa	to /ct	to /ct
US	to /ct	to /ct

Demantoid	to 1 carat	1 to 3 carats
	to /ct	to ,000/ct

Grossular Garnet	.5 to 1 carat	1 to 5 carats	5 carats plus
Mint Green (Merlani)	to /ct	to /ct	to /ct
Yellow/Orange	to /ct	to /ct	to /ct
Yellow/Green	to /ct	to /ct	to /ct
Other colors	/ct	/ct to /ct

Fine Color Hessonite: yO 4/5

Hessonite Garnet	All sizes
	to /ct

Malaya Garnet	.5 to 1 carat	1 to 5 carats	5 carats plus
	to /ct	to /ct	to /ct

Mozambique	All sizes
	to /ct

Mali Garnet	All sizes
	to /ct

Fine Color Spessartite: O 4/5

Mandarin Orange	All sizes
	to /ct

Fine Color Pyrope: R 6/5

Pyrope	1 carat plus
	/ct

Fine Color Rhodolite: rP, PR 6/5

Rhodolite	.5 to 1 carat	1 to 10 carats	10 carats plus
Faceted	to /ct	to /ct	to /ct
Cabochons	to /ct	to /ct	to /ct

Spessartite Reds See Mandarin above	.5 to 3 carats	3 to 6 carats
Little 3 Mine	to /ct	to /ct
African	to /ct	to /ct
Darker reds	to /ct

Star Garnet	All sizes
6 ray star	to /ct
4 ray star	to /ct

Fine Color Tsavorite: G 6/5

Tsavorite	.5 to 1 carat	1 to 2 carats	2 carats plus
Faceted	to /ct	to /ct	to ,000/ct

Uvarovite	10 carats plus
Druzy	to /ct

Cabochons	All Sizes
Common red to purple	to /ct

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Spessartite Information

Spessartite Rough

This garnet is named after Spessart, Bavaria.

Spessartite is somewhat rare. As with the other garnets, it always occurs in a blend with other species. Gems with the highest spessartite content are a light orange. Those with an almandine content are reddish, to red brown in hue.

In granite pegmatites; also gneiss, quartzite and rhyolite, and sometimes as a component in skarns.

Nevada; Colorado; New Mexico; Pennsvlvania; North Carolina.

San Diego County, California: good crystals, especially at Ramona (fine orange gems).

Amelia Court House, Virginia: fine orange to deep brownish material, gemmy.

Norway; Tsializina. Madagascar

Sri Lanka and Burma: in the gem gravels.

Brazil (Arassuahy and Ceara): large crystals (up to several pounds), gemmy, fine color.

The most valuable spessarties are a bright, orangish red. These come from Ramona, California, and Amelia, Virginia..

Gems weighing more than 100 carats have been cut from Brazilian and Madagascar rough. Amelia stones are fine color (orange) but small, up to about 15-20 carats, although crystals weighing several pounds have been found there.

Smithsonian Institution (Washington, D.C): 109 (red, Brazil); 53.8 (red, Brazil); 40.1 (orange, Virginia). American Museum of Natural History (New York): 96 (reddish, Brazil—not clean).

Spessartine is fairly rare as a gem garnet, and one of the most beautiful. Large stones are very rare, and usually quite dark. The finest color is an orangy red, as exemplified by the material from Ramona, California, and Amelia, Virginia. A red-brown tint indicates a higher content of almandine, accompanied by higher refractive index; pale orange colors are closer to pure spessartine. Spessartine as a component of almandine tends to add a lively reddish tinge of color.

Spessartine is fairly rare as a gem garnet, and one of the most beautiful. Large stones are very rare, and usually quite dark. The finest color is an orangy red, as exemplified by the material from Ramona, California, and Amelia, Virginia. A red-brown tint indicates a higher content of almandine, accompanied by higher refractive index; pale orange colors are closer to pure spessartine. Spessartine as a component of almandine tends to add a lively reddish tinge of color.

Unusual color-change garnets with large amounts of V and Cr have been reported from East Africa. These are primarily spessartine, with an unusually large component of grossular. The color change may be as follows:

1. greenish yellow-brown (transmitted fluorescent light) to purplish red (reflected fluorescent); reddish orange to red (incandescent light) N= 1.773, S.G.= 3.98; spessartine/grossular/almandine.

2. light bluish green (transmitted fluorescent) to purple (reflected); light red to purplish red (incandescent) N= 1.763, S.G. = 3.89; spessartine/grossular/pyrope.

So-called alexandrite-like garnets have also been noted, changing from violet-red to blue-green. These are usually small, but a stone of 24.87 carats was sold in 1979.

OPTICS:

N= 1.79-1.81;

1.803-1.805 (Brazil).

1.795 (Amelia, Virginia).

INCLUSIONS: Wavy feathers, due to liquid drops that have a shredded look, especially in gems from Sri Lanka and Brazil.

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