If you are looking for a specific Shape, Color, Cut, Clarity, and Carat weight please contact the store to speak with our Diamond specialist on hand. The color D-F is colorless meaning, you will see only flashes of blue, green, or white in the sparkle.) Clarity is VS2-VVS1 ( The clarity VS2-VVS1 is “one - three steps from flawless”, meaning under a microscope it will be close to impossible to find imperfections. The color G - I Meaning, you might see flashes of green, blue, yellow, white or orange in the sparkle.)īest: Color is D-F. Clarity Is SI1-VS2 ( The clarity SI1-VS2 is “clean’, meaning you will not see anything with your naked eye, under a microscope you will have a hard time finding imperfections. The color J-K meaning, that you see flashes of pink, purple, champagne, yellow, or green in the sparkle.)īetter: Color is G-I. Clarity is I1-SI2 ( The clarity SI2- I1 is “eye clean” meaning you will not see black imperfections with your naked eyes. Please contact the store with any special requests. It also can be made in additional sizes, in additional gold karat’s or Platinum, and center stone shapes or sizes not listed above. This item can be made in natural earth mined diamonds or cultured diamonds. Integrity and social responsibility are at the core of our sourcing practices. This oval center with a cluster side diamonds, the ring is 1/10 ctw.Īt Henri's, we ethically source our diamonds and gemstones. With refined 10k white gold and "better" grade natural diamonds. The size is about 35 cm across.Elegant and Timeless, Henri's Color Collection shows amethyst & diamond ring is a new modern view on love. This amehtyst sample is from Rio Grande do Sul, Brazil. This amehtyst sample shows the form known as scepter crystals. The sample at right is about 5x17 cm and is from Cripple Creek, Colorado. The right pair are 109.6 and 163.8 carats and are from Rio Grande do Sul, Brazil.Īt left is an amethyst crystal formation about 4x5 cm from Virginia. Amethyst belongs to the larger Quartz family and is a very popular gem for jewellery. The center pair of gems are 44.5 and 33.2 carats and are from Alexander County, North Carolina. AMETHYST COLOR CHANGE 6.34 Cts - 19572 GORGEOUS PURPLE RED. The amethyst gems at left are 41.2 and 61.4 carats and are from Brazil.
The sample at right is about 10x20cm from Due West, South Carolina. The gems are 204.1 and 72.2 carats and are from Rio Grande do Sul, Brazil.Īt left is amethyst formed on smoky quartz from Pondorf mine, Jefferson County, Montana. The amethyst sample at left above is about 8x8 cm and is from Las Vigas, Vera Cruz, Mexico. You need to have quartz that contains the right amounts of iron and then is subjected to enough natural radiation to cause the color centers to form." ( Minsocam) This +4 iron absorbs certain wavelengths (357 and 545 nanometers) of light causing the amethyst color. Gamma ray radiation ( from nuclear decay in the surrounding rocks ) can knock an electron from an iron lattice site and deposit the electron in an interstitial iron. Color: By definition, amethyst is purple in color, the most popular color is a reddish purple with rich saturation. The iron is usually in the +3 valence state. This dramatic amethyst-lined tube has front dimensions of about 35x30 cm and the displayed section is about a meter long! " Some of this iron sits in sites normally occupied by silicon and some is interstitial ( in sites where there is normally not an atom).
These are created when trace amounts of iron are irradiated ( from the natural radiation in the rocks)." ( Minsocam) The color in amethyst comes from color centers in the quartz. "Quartz will commonly contain trace amounts of iron ( in the range of 10's to 100's parts per million of iron). The sample at left is from Upper Providence, Pennsylvania and is about 10x8 cm. Amethyst is a variety of quartz with the characteristic composition SiO 2, but distinctive and popular for its dramatic purple color. These samples of amethyst are displayed in the Smithsonian Museum of Natural History.
0 kommentar(er)
