Pedro-Da-Silva-Home-Page_Logo

Home    Profile    Galleries    Blog    Contact    Map    Customer Comments

Black Diamonds

black-2 There are plenty of resources available to learn all about black diamonds. Black diamonds are crystallized carbon, just like regular diamonds. Either the color black occurs due to dark inclusions, or due to changes in a white diamond due to high temperatures or radiation.
  • A natural black diamond is quite rare and naturally very expensive. Most black diamonds occur as irregular black masses called carbonados. (Portuguese for black).Most black diamonds in the market today are treated. Treatment of gemstones is a process that dates back to several centuries. In fact, were it not for these, we wouldn’t know our gemstones as we do. An untreated tanzanite looks nowhere near the form it is used in jewelry as.
  • Black diamonds are treated to achieve that uniformity of black color. This is the norm of the industry, so long as you are not buying a black diamond believing it to be a natural black diamond. Those command astonishingly high prices
Please follow and like us:

Amethyst – February birthstone

Amethyst is a violet variety of quartz often used in jewelry. The name comes from the Ancient Greek a- (“not”) and μέθυστος méthystos (“intoxicated”), a reference to the belief that the stone protected its owner from drunkenness. The ancient Greeks wore amethyst and made drinking vessels decorated with it in the belief that it would prevent intoxication. It is one of several forms of quartz. Amethyst is a semiprecious stone and is the traditional birthstone for February.amethyst
Please follow and like us:

Garnet – January birthstone

Garnet species are found in many colors including red, orange, yellow, green, purple, brown, blue, black, pink and colorless. The rarest of these is the blue garnet, discovered in the late 1990s in Bekily, Madagascar. It is also found in parts of the United States, Russia, Kenya, Tanzania, and Turkey. It changes color from blue-green in the daylight to purple in incandescent light     Garnet-Rhodolite A sample showing the most recognized deep wine red color.  
Please follow and like us:

Birthstone-December

 tanzanite crystal and faceted  Tanzanite

  The blue/purple variety of the mineral zoisite. It was discovered in the Mererani Hills of Manyara Region in Northern Tanzania in 1967, near the city of Arusha and Mount Kilimanjaro. Tanzanite is used as a gemstone, and naturally-formed tanzanite is extremely rare, still found only in the Mererani Hills. Tanzanite is noted for its remarkably strong trichroism (3 colours when viewed from different angles), appearing alternately sapphire blue, violet and burgundy. Tanzanite can also appear differently when viewed under alternate lighting conditions. The blues appear more evident when subjected to fluorescent light and the violet hues can be seen readily when viewed under incandescent illumination. Tanzanite is usually a reddish brown in its rough state, requiring heat treatment to bring out the blue violet of the stone. The mineral was named by Tiffany & Co. after Tanzania, the country in which it was discovered. In 2002, the American Gem Trade Association chose Tanzanite as a December birthstone, the first change to their birthstone list since 1912.    
Please follow and like us:

Silver

  • Silver has been coined to use as money since 700 BC.
  • The term ‘sterling silver’ in reference to the grade .925 silver emerged in England in the 13th century.
  • buy-silver-bars
  • In ancient Egypt and Medieval Europe, silver was often more valuable than gold.
  • Because of its ability to take the highest polish, silver has a greater reflectivity than even gold!
  • Mirrors are coated with silver because it reflects nearly all light.
  • Of all the metals in existence, silver is the best conductor of electricity. Silver is what makes photography possible. Silver halide crystals are present in unexposed film.
  • Silver bearings are used in jet engines because they provide superior performance.
  • Silver is used in long life batteries. Billions of silver oxide-zinc batteries are in use every day powering everything from quartz watches to digital cameras.
  •  
  • Silver possesses, it’s working qualities similar to gold but can achieve the most brilliant polish of any metal. To make it durable for jewellery, however, pure silver (999 fineness) is often alloyed with small quantities of copper. In many countries, Sterling Silver (92.5% silver, 7.5% copper) is the standard for Jewellery and has been since the 14th century.
  • The copper toughens the silver and makes it possible to use silver 925 for decorative and fashionable jewellery.
  • Silver is being put into paper used in medical professions because of its antibiotic-like characteristics.
       
Please follow and like us:
Call Now
Directions