• Sep 11
    Natural Blue Sapphire Loose Gemstone 5x13mm Faceted Marquise 1.25ct Gem Sa7

    Natural Blue Sapphire Loose Gemstone 5x13mm Faceted Marquise 1.25ct Gem Sa7

    Natural Blue Sapphire Loose Gemstone 5x13mm Faceted Marquise 1.25ct Gem Sa7

    Superb Natural Gemstone Blue Sapphire 5×13 marquise 1.25ct gem AAA Faceted natural Sapphire – for Gemstone collectors, for Jewellery designers or for Mystic and positive energy as an amulet Clarity: AAA – Eye-clean Colour: medium to deep blue Treatment : heat-treated Gold ring (wedding band) not included and shown for size comparing only. Sapphire Mohs hardness 9, Specific gravity 4, Refractive index 1.760-1.770. Sapphire name comes from Greek sappheiros “blue stone” is a gemstone variety of the mineral corundum, an aluminium oxide. Colour other than red or dark pink, in which case the gem would instead be called a ruby, considered to be a different gemstone. Trace amounts of other elements such as iron, titanium, or chromium can give corundum blue, yellow, pink, purple, orange, or greenish colour. Pink-orange sapphires are also called padparadscha. A combination of chromium and titanium can give a sapphire of a colour distinct from red. The cost of natural sapphires varies depending on their colour , clarity, size, cut, and overall quality – as well as their geographic origin. Significant sapphire deposits are found in Eastern Australia, Thailand, Sri Lanka, Madagascar, East Africa, and in North American at a few locations, such as at “Gem Mountain”, and in or near the Missouri River in the region around Helena, Montana. Blue sapphires are evaluated based upon the purity of their primary hue. Purple, violet, and green are the most common secondary hues found in blue sapphires. Violet and purple can contribute to the overall beauty of the colour , while green is considered to be distinctly negative. Yellow and green sapphires are also commonly found. Pink sapphires deepen in colour as the quantity of chromium increases. The deeper the pink colour the higher their monetary value as long as the colour is trending towards the red of rubies. Sapphires also occur in shades of orange and brown, and colourless sapphires are sometimes used as diamond substitutes in jewellery. Padparadscha sapphires often draw higher prices than many of even the finest blue sapphires. A star sapphire is a type of sapphire that exhibits a star-like phenomenon known as asterism. Star sapphires contain intersecting needle-like inclusions of the mineral rutile, a mineral composed primarily of titanium dioxide, that cause the appearance of a six-rayed “star”-shaped pattern when viewed with a single overhead light source. A rare variety of sapphire, known as colour change sapphire, exhibits different colours in different light. Colour change sapphires are blue in outdoor light and purple under incandescent indoor light; they may also be pink in daylight to greenish under fluorescent light. Some stones shift colour well and others only partially, in that some stones go from blue to bluish purple. In 1902, the French chemist Auguste Verneuil developed a process for producing synthetic sapphire crystals. In the Verneuil process, named for him, fine alumina powder is added to an oxyhydrogen flame, and this is directed downward against a mantle. The alumina in the flame is slowly deposited, creating a teardrop shaped of sapphire material. Chemical dopants can be added to create artificial versions of the ruby, and all the other natural colours of sapphire, and in addition, other colours never seen in geology. Artificial sapphire material is identical to natural sapphire, except it can be made without the flaws that are found in natural stones. Inspires creative expression, intuition and meditation. GREEN SAPPHIRE brings luck. ORANGE SAPPHIRE – also known as Padparadschah, augments wisdom, optimism and friendliness. PINK SAPPHIRE – encourages generosity, love and loyalty. STAR SAPPHIRE – develops independence, centering, balance and psychic. WHITE SAPPHIRE – associated with self-appreciation and spiritual development. YELLOW SAPPHIRE – enhances intellect, study, knowledge and memory. April Ancient traditional birthstones: Hebrew – sapphire, Roman – sapphire, Arabic- sapphire July Ancient traditional birthstones: Hindu – sapphire September Modern birthstone: sapphire Zodiac gemstone for Taurus: sapphire Guardian angel Verchiel his talisman stone – sapphire Sapphire care: Wash with warm soapy water, Avoid harsh detergents, Ultrasonic and steam cleaning are usually safe. The item “NATURAL BLUE SAPPHIRE LOOSE GEMSTONE 5X13MM FACETED MARQUISE 1.25CT GEM SA7″ is in sale since Saturday, September 10, 2016. This item is in the category “Jewellery & Watches\Loose Diamonds & Gemstones\Sapphire\Natural Sapphires”. The seller is “theantiquetrade” and is located in Manchester, Lancashire. This item can be shipped worldwide.
    • Gemstone: Sapphire
    • Colour: blue
    • Cut: Marquise / Navette
    • Carat: 1.1-2.5Carat
    • Natural/Synthetic: Natural
    • Variety/Type: Blue
    • Shape: Marquise
    • Cut Grade: Very Good
  • Sep 11
    Natural Loose Emerald Gem 7.8x11mm Pear 2.25ct Faceted A Gemstone Em9

    Natural Loose Emerald Gem 7.8x11mm Pear 2.25ct Faceted A Gemstone Em9

    Natural Loose Emerald Gem 7.8x11mm Pear 2.25ct Faceted A Gemstone Em9

    NATURAL LOOSE EMERALD GEM 7.8X11MM PEAR 2.25CT FACETED A GEMSTONE EM9. Superb Hand Cut Natural Gemstone Natural Emerald 7.8×11 pear 2.25ct faceted A-AA gemstone Natural Emerald – for Gemstone collectors, for Jewellery designers or for Mystic and positive energy as an amulet Colour: Medium green Clarity: Included Treatment: Oiled Gold ring (wedding band) not included and shown for size comparing only. Emerald Mohs hardness 7.5-8, Specific gravity 2.68-2.78, Refractive index 1.5601.602. Emeralds are a green member of the Beryl clan, colored green by trace amounts of chromium and sometimes vanadium. Most emeralds are highly included, so their toughness and resistance to breakage is classified as generally poor. The word Emerald is derived from Old French: Esmeraude and Middle English: Emeraude, and from Latin: Esmaralda/Esmaraldus, a variant of Latin Smaragdus, which originated in Greek: (smaragdos; “green gem”); its original source being either the Hebrew word izmargad meaning “emerald” or “green” or the Sanskrit word marakata meaning green. ” The name could also be related to the Semitic word baraq (“lightning” or “shine) cf. Hebrew: bareqeth and Arabic: barq “lightning”. It is the same source for the names Persian (zomorrod), Turkish (zümrüt), Sanskrit (maragdam), Russian (izumrud) and Armenian zmruxt. Emeralds, like all colored gemstones, are graded using four basic parameters, the four Cs of Connoisseurship; Color, Cut, Clarity and Crystal. The last C, crystal is simply used as a synonym that begins with C for transparency or what gemologists call diaphaneity. Before the 20th century, jewelers used the term water as in “a gem of the finest water” to express the combination of two qualities, colour and crystal. Normally, in the grading of coloured gemstones, colour is by far the most important criteria. However, in the grading of emerald, crystal is considered a close second. Both are necessary conditions. A fine emerald must possess not only a pure verdant green hue, but also a high degree of transparency to be considered a top gem. Colour is divided into three components: hue, saturation and tone. Yellow and blue, the hues found adjacent to green on the spectral colour wheel, are the normal secondary hues found in emerald. Emeralds occur in hues ranging from yellow-green to blue-green. The primary hue must, of course, be green. Only gems that are medium to dark in tone are considered emerald. Light-toned gems are known by the species name, green beryl. In addition, the hue must be bright and vivid. Emerald tends to have numerous inclusions and surface breaking fissures. Unlike diamond, where the loupe standard, i. 10X magnification, is used to grade clarity, emerald is graded by eye. Thus, if an emerald has no visible inclusions to the eye it is considered flawless. Stones that lack surface breaking fissures are extremely rare and therefore almost all emeralds are treated, “oiled”, to enhance the apparent clarity. Eye-clean stones of a vivid primary green hue with no more than 15% of any secondary hue or combination either blue or yellow of a medium-dark tone command the highest prices. This relative crystal non-uniformity makes emeralds more likely than other gemstones to be cut into cabochons, rather than faceted shapes. Most emeralds are oiled as part of the post lapidary process, in order to improve their clarity. Cedar oil, having a similar refractive index, is often used in this generally accepted practice. Other liquids, including synthetic oils and polymers with refractive indexes close to that of emerald such as Opticon are also used. The use of oil is traditional and largely accepted by the gem trade. Other treatments, for example the use of green-tinted oil, are not acceptable in the trade. Given that the vast majority of all emeralds are treated as described above, and the fact that two stones that appear to be similar in quality may actually be quite far apart in treatment level. All other factors being equal, a high quality emerald with an enhancement level graded moderate should cost 4050% less than an identical stone graded none. To promote love, romance, joy, cleansing, clairvoyance, clear vision, memory, faith, intuition, serenity, intelligence and communication. This is a truth-promoting stone, inspiring deep knowing from within. Emerald – Stone of Successful Love domestic bliss, stimulates heart charka, harmony, fidelity, joy, all healing. The Breastplate of Aaron: a ceremonial religious garment set with twelve gemstones that represented the twelve tribes of Israel. It was square — a span [22 centimetres] long and a span wide — and folded double. Then they mounted four rows of precious stones on it. In the first row there was a ruby, a topaz and a beryl; in the second row a turquoise, a sapphire and an emerald. The Twelve Tribes of Israel In Exodus 28:17-21, specific gemstones were associated with the twelve tribes of Israel. People of Jewish heritage may wish to select their birthstones based on tribal names. Historians have complied several lists of which stone goes with each name. Emerald is associated with the tribe of Levi. Christianity influenced the symbolism of gemstones. Specific gemstones were also associated with the twelve apostles. Emerald associated with apostle James/John. May modern birthstone- emerald, ancient traditional birthstones: Arabic – emerald, Hindu – emerald, Polish – emerald. June ancient traditional birthstones: Hebrew – emerald, Roman – emerald. Zodiac gemstone for Cancer – emerald Guardian angel Muriel and his talisman stone – emerald. Emerald care: Wash with warm soapy water, Avoid harsh detergents, Never clean ultrasonically, Never steam clean. The item “NATURAL LOOSE EMERALD GEM 7.8X11MM PEAR 2.25CT FACETED A GEMSTONE EM9″ is in sale since Thursday, September 08, 2016. This item is in the category “Jewellery & Watches\Loose Diamonds & Gemstones\Emerald\Natural Emeralds”. The seller is “theantiquetrade” and is located in Manchester, Lancashire. This item can be shipped worldwide.
    • Gemstone: Emerald
    • Colour: green
    • Carat: 1.1-2.5Carat
    • Natural/Synthetic: Natural
    • Cut: Pear Shape
    • Shape: Pear


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