Between 20, the greatest production was from Marabá and Pau d'Arco, Pará, and the Paraná Basin, Rio Grande do Sul, Brazil Sandoval, Santa Cruz, Bolivia Artigas, Uruguay Kalomo, Zambia and Thunder Bay, Ontario. It does not fluoresce under either short-wave or long-wave UV light.Īmethyst is found in many locations around the world. When partially heated, amethyst can result in ametrine.Īmethyst can fade in tone if overexposed to light sources and can be artificially darkened with adequate irradiation. Natural amethyst is dichroic in reddish violet and bluish violet, but when heated, turns yellow-orange, yellow-brown, or dark brownish and may resemble citrine, but loses its dichroism, unlike genuine citrine. The color of amethyst has been demonstrated to result from substitution by irradiation of trivalent iron (Fe 3+) for silicon in the structure, in the presence of trace elements of large ionic radius, and to a certain extent, the amethyst color can naturally result from displacement of transition elements even if the iron concentration is low. The uncut gem may have only a small portion that is suitable for faceting. Sometimes, only a thin layer of a natural, uncut amethyst is violet colored, or the color is very uneven. One of a gem cutter’s tasks is to make a finished product with even color. Other names for green quartz are vermarine or lime citrine.Īmethyst frequently shows color zoning, with the most intense color typically found at the crystal terminations. Green quartz is sometimes incorrectly called green amethyst, which is a misnomer and not an appropriate name for the material, as the proper terminology is prasiolite. These pale colors were once considered undesirable, but have recently become popular due to intensive marketing. ‘Rose de France’ is defined by its markedly light shade of the purple, reminiscent of a lavender/ lilac shade. The ideal grade is called "Deep Siberian" and has a primary purple hue of around 75–80%, with 15–20% blue and (depending on the light source) red secondary hues. High quality amethyst can be found in Siberia, Sri Lanka, Brazil, Uruguay, and the Far East. Amethyst may exhibit one or both secondary hues, red and blue. The hardness of the mineral is the same as quartz, thus making it suitable for use in jewelry.Īmethyst occurs in primary hues from a light lavender or pale violet, to a deep purple. Gemstone shapes: round Gemstone colors: white, purple One prong-set round-cut stone measures: 9 mm wide x 9 mm long Gemstone weight: 2.5 carats Total gemstone weight: 4.Amethyst is a purple variety of quartz (SiO 2) and owes its violet color to irradiation, impurities of iron and in some cases other transition metals, and the presence of other trace elements, which result in complex crystal lattice substitutions. This ring has a closed under-gallery with two-tone plating, highlighting Suzy Levian's Suzy Levian logo. By creating jewelry that is beautiful inside and out, Suzy Levian's message is revealed through a hidden white topaz gemstone set inside the shank of this ring to empower women to discover their inner strength, power and beauty. This ring is designed by Suzy Levian with a message. This dazzling ring looks delicate and elegant on your hand and is sure to draw the attention of your friends and family. Be the topic of conversation by pairing this ring with an evening gown for a special occasion or your favorite pair of jeans for a night on the town. Suitable for any occasion, this ring adds dimension to any outfit. The high-shine polish of the piece is sure to draw attention at any cocktail party or special event. The band is constructed from sterling silver, making it durable and easy to clean. This ring makes a great birthday gift or addition to a personal jewelry collection. This Suzy Levian birthstone ring features a large, round-cut purple amethyst gemstone (2.50ct), enwrapped with sparkling 242 white topaz gemstones for a halo design.
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