Grossularite and Diamond Drop Earrings

Platinum occurs naturally in the alluvial sands of various rivers, though there is little evidence of its use by ancient peoples. However, the metal was used by pre-Columbian Americans near modern-day Esmeraldas, Ecuador to produce artifacts of a white gold-platinum alloy. The first European reference to platinum appears in 1557 in the writings of the Italian humanist Julius Caesar Scaliger as a description of an unknown noble metal found between Darien and Mexico, which no fire nor any Spanish artifice has yet been able to liquefy. The alchemical symbol for platinum (shown above) was made by joining the symbols of silver and gold.

In 1741, Charles Wood, a British metallurgist, found various samples of Columbian platinum in Jamaica, which he sent to William Brownring for further investigation. Antonio Ulloa, also credited with the discovery of platinum, returned to Spain from the French Geodesic Mission in 1746 after having been there for eight years. His historical account of the expedition included a description of platinum as being neither separable nor calcinable. Ulloa also anticipated the discovery of platinum mines. After publishing the report in 1748, Ulloa did not continue to investigate the new metal. In 1758, he was sent to superintend mercury mining operations in Huancavelica.

In an exemplary tribute to fine craftsmanship, a floral motif of diamonds forms a wreath around stunning grossularite. Drop earrings with oval grossularites and pear-shaped and round brilliant diamonds in platinum, for pierced ears. Let’s view the specification of this diamond drop earrings in platinum valued $32,500: Oval grossularites, carat total weight 7.36; pear-shaped diamonds, carat total weight 1.72; round brilliant diamonds, carat total weight .79.

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Tiffany Iris Diamond Brooch

If pure platinum is found in placer deposits or other ores it is isolated from them by various methods of subtracting impurities. Because platinum is significantly denser than many of its impurities, the lighter impurities can be removed by simply floating them away in a water bath. Platinum is also non-magnetic, while nickel and iron are both magnetic. These two impurities are thus removed by running an electromagnet over the mixture. Because platinum has a higher melting point than most other substances, many impurities can be burned or melted away without melting the platinum. Finally, platinum is resistant to hydrochloric and sulfuric acids, while other substances are readily attacked by them. Metal impurities can be removed by stirring the mixture in either of the two acids and recovering the remaining platinum.

This Iris brooch with yellow sapphires, tsavorites and diamonds in platinum is valued $38,000. Let we have a look at the specification of this elegant and captivating brooch in platinum with yellow sapphires, tsavorites, round brilliant diamonds and 18k gold. Yellow sapphires, carat total weight 20.06; tsavorites, carat total weight .81; round brilliant diamonds, carat total weight .60.

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Tiffany Magic Starfish Brooch

Platinum exists in higher abundances on the Moon and in meteorites. Correspondingly, platinum is found in slightly higher abundances at sites of bolide impact on the Earth that are associated with resulting post-impact volcanism, and can be mined economically; the Sudbury is one such example. Platinum together with the rest of the platinum metals is obtained commercially as a by-product from nickel and copper mining and processing. During electrorefining of copper  , noble metals such as silver, gold and the platinum group metals as well as selenium and tellurium settle to the bottom of the cell as anode mud, which forms the starting point for the extraction of the platinum group metals.

This magical starfish is encrusted with pink opals, sapphires and diamonds that shimmer like the sand and the sea. The specifications are like this: Cabochon pink opals, carat total weight .43; cabochon pink sapphires, carat total weight .83; round brilliant diamonds, carat total weight 2.85. This beautiful starfish brooch values $22,000.

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Elsa Pave Diamonds Platinum Ring

In nickel and copper deposits platinum group metals occur as sulfides (i.e. (Pt,Pd)S), tellurides(i.e. PtBiTe), antimonides (PdSb), and arsenides(i.e. PtAs₂), and as end alloys with nickel or copper. Platinum arsenide, sperrylite (PtAs₂), is a major source of platinum associated with nickel ores in the Sudbury Basin deposit in Ontatio, Canada. The rare sulfide mineral cooperite, (Pt,Pd,Ni)S, contains platinum along with palladium and nickel. Cooperate occurs in the Merensky Reef within the Bushveld complex, Gauteng, South Africa.

The largest known primary reserves are in the Bushveld complex in South Africa. The large copper–nickel deposits near Norilsk in Russia, and the Sudbury Basin, Canada, are the two other large deposits. In the Sudbury Basin the huge quantities of nickel ore processed makes up for the fact that platinum is present as only 0.5 ppm in the ore. Smaller reserves can be found in the United States, for example in the Absaroka Range in Montana. This is also shown in the production of 2005. In 2005, South Africa was the top producer of platinum with an almost 80% share followed by Russia and Canada.

This Peretti’s elliptical form presents an intriguing figure. This ring of pave diamonds set in platinum vales $6,800. And the original designs copyrighted by Elsa Peretti. The carat total weight is .80.

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Tiffany Oval Diamond Ring

As a pure metal, platinum is silvery-white in appearance, lustrous, ductile, and malleable. It does not oxidize at any temperature, although it is corroded by halogens, cyanides, sulfur, and caustic alkalis. Platinum is insoluble in hydrochloric and nitric acid, but dissolves in aqua regia  to form chloroplatinic acid, H₂PtCl_6. Platinum’s wear- and tarnish-resistance characteristics are well suited for making fine jewelry. Platinum is more precious than gold or silver. Platinum possesses high resistance to chemical attack, excellent high-temperature characteristics, and stable electrical properties. All of these properties have been exploited for industrial applications. Platinum is an extremely rare metal, occurring as only 0.003 ppb in the Earth’s crust. It is sometimes mistaken for silver (Ag) but platinum is whiter in appearance. Platinum is often found chemically uncombined as native platinum and alloyed with iridium. Most often the native platinum is found in secondary deposits; platinum is combined with the other platinum group metals in alluvial deposits. The alluvial deposits used by pre-Columbian people in the Choco Department, Colombia are still a source for platinum group metals. Another large alluvial deposit was found in the Ural mountains, Russia, which is still mined.

The extraordinary size and cut of this Tiffany diamond make it extremely rare, with a setting designed to showcase the center stone. Ring with an oval diamond in platinum. The specification of this ring is like this: Carat total weight 3.86, color grade E, clarity grade VVS1. And the price is also higher as $202,500.

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Tiffany Bow Tie Ring

Platinum is a chemical element with the chemical symbol Pt and at omic number of 78. its name is derived from the Spanish term platina del Pinto, which is literally translated into “little silver of Pinto River.” It is in Group 10 of the periodic table of elements. A dense, malleable, ductile, precious, gray-white transition metal, platinum is resistant to corrosion and occurs in some nickel and copper ores along with some native deposits. Platinum is used in jewelry, laboratory equipment, electrical contacts and electrodes, platinum resistance thermometers, dentistry equipment, and catalytic converters. Platinum bullion has the ISO currency code of XPT. Platinum is a commodity with a value that fluctuated according to market forces. On June 5, 2009, Platinum was worth $1263.00 per troy ounce.

This bow tie ring from Tiffany with round brilliant diamonds in platinum values $1,500. The carat total weight is .12.

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Tiffany Heart Earrings

Biological models of sex tend to view love as a mammalian drive, much like hunger or thirst. Helen Fisher, a leading expert in the topic of love, divides the experience of love into three partly overlapping stages: lust, attraction, and attachment. Lust exposes people to others; romantic attraction encourages people to focus their energy on mating; and attachment involves tolerating the spouse (or indeed the child) long enough to rear a child into infancy.

This Tiffany gets to the heart of the matter. The earrings with round brilliant diamonds in platinum for pierced ears is $1,950. The carat total weight is .38.

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Tiffany Notes I Love You Lock Charm

Interpersonal love refers to love between human beings. It is a more potent sentiment than a simple liking for another. Unrequited love refers to those feelings of love that are not reciprocated. Interpersonal love is most closely associated with interpersonal relationships. Such love might exist between family members, friends, and couples. There are also a number of psychological disorders related to love, such as erotomania. Throughout history, philosophy and religion have done the most speculation on the phenomenon of love. In the last century, the science of psychology has written a great deal on the subject. In recent years, the sciences of evolutionary psychology, evolutionary biology, anthropology, neuroscience, and biology have added to the understanding of nature and function of love.

This Tiffany I love you lock charm in sterling silver has an elegant script inspired by handwritten letters. The lock can open and close. This charm is $135. And also be available on sterling silver chain, bracelet or necklace.

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Tiffany Cherished Photos Close to Your Heart

A person can be said to love a country, principle, or goal if they value it greatly and are deeply committed to it. Similarly, compassionate outreach and volunteer workers’ “love” of their cause may sometimes be borne not of interpersonal love, but impersonal love coupled with altruism and strong political convictions. People can also “love” material objects, animals, or activities if they invest themselves in bonding or otherwise identifying with those things. If sexual passion is also involved, this condition is called paraphilia.

This cherished photo close to your heart is $400. The locket in 14k gold is a small size. The heart can be open and closed. You can put someone you love’s photo into it. And wear it just like It is also available on an 18k gold chain, bracelet or necklace which sold separately.

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Classic Tiffany Diamond Heart Charm

When discussed in the abstract, love usually refers to interpersonal love, an experience felt by a person for another person. Love often involves caring for or identifying with a person or thing, including oneself. In addition to cross-cultural differences in understanding love, ideas about love have also changed greatly over time. Some historians date modern conceptions of romantic love to courtly Europe during or after the Middle Ages, although the prior existence of romantic attachments is attested by ancient love poetry. Because of the complex and abstract nature of love, discourse on love is commonly reduced to a thought-terminating cliché, and there are a number of common proverbs regarding love, from Virgil’s “Love conquers all” to the Beatles’ “All you need is love.” Bertrand Russell describes love as a condition of “absolute value,” as opposed to relative value. Philosopher Gottfried Leibniz said that love is “to be delighted by the happiness of another.”

This classic Tiffany diamond heart charm with round brilliant diamonds and red enamel finish in platinum is $1,750. The carat total weight .16. It is available on a platinum chain.

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