Wednesday, February 1, 2012

"I Can Only Wear Gold Jewelry" - The Truth About Jewelry Allergies

"I can only wear gold jewelry, everything else breaks me out." My mother, like many people, develops contact dermatitis when her skin comes in contact with some types of jewelry. The dermatitis is a result of an allergic reaction to the nickel found in many types of jewelry. Nickel allergies are very common. More women tend to suffer from nickel allergies than men. First I looked at gold jewelry. However white gold may. White gold alloys contain nickel and other "white" metals to produce its silver coloring. Gold filled jewelry metal is created when a base metal is coated with a layer of gold. Gold filled differs from gold plated by the amount of gold applied. The layer used in gold filled jewelry is typically 50 to 100 time thicker that the layer used to coat gold plated products.
Next I looked at silver jewelry. For those who are nickel sensitive, fine silver and sterling silver are great choices for "white" metals.
Fine silver is by definition 99.9% pure silver. Typically silver jewelry is made of sterling silver. Sterling silver is by definition 92.5% pure silver. Since copper is the normal metal used, sterling silver is a great metal for nickel allergic people. Some other metals that are considered safe for people with nickel allergies are:
Copper - Copper jewelry is generally considered pure and not mixed with nickel or nickel alloys.
Platinum - Platinum jewelry contains 95% platinum and 5% of a secondary metal typically iridium.
Titanium - Titanium jewelry is both hypoallergenic and durable. It is a highly recommended metal for those who suffer from nickel allergies.
Fashion or costume jewelry typically contains base metals that include nickel.
German silver or nickel silver is a metal to stay away from where jewelry is concerned. German silver does not contain any silver. The silver refers to the silver coloration of the metal. If you do buy a piece of jewelry and are concerned that it may contain nickel, commercial test kits are available online. April Williams is the owner of Eluna Jewelry Designs, widely known for an exquisite selection of gemstone pendants, sterling silver earrings, and reproduction sea glass jewelry. 

Wednesday, January 25, 2012

Gold Filled Jewellery - What is it All About?

Gold filled jewellery, also known as rolled-gold is made by binding the base metal that is usually a brass or copper, between two layers of gold. This jewellery is identified with the 'GF' marking, which is given to the jewellery when it satisfies a few basic requirements such as the outer gold should be a minimum of 10K; the outer gold should weigh 5% of the final item and should be permanently bound to the base material. Double-clad jewellery, which has half the thickness, is expensive when compared to the single-clad jewellery.
The different types of gold filled jewellery ranges from beads to necklaces, bracelets, bangles, ear and finger rings. There are different types of gold filled beads, which have the same appealing looks as that of the gold and some of them are corrugated beads, corrugated twist beads, stardust beads, sandblast beads, round smooth, rose color gold filled beads, donut spacer, faceted and rondelle gold filled beads.
Gold filled jewellery must be cleaned properly and frequently. People of today prefer to wear this filled jewellery to gold jewellery. For gold filled beads.

Monday, January 9, 2012

Gold, Silver And Platinum - They're Not Called 'Precious' Metals For Nothing

When it comes to jewellery, the three most precious metals are silver, gold and platinum - in that particular order. As a soft metal, silver needs to be alloyed with other metals before being made into jewellery, in order to make the metal stronger and more resistant. This small copper content means that silver jewellery is likely to tarnish, so if you're thinking about buying a sterling silver ring or bracelet, it's important to make sure you clean in properly. Further, to make sure the silver jewellery you've bought is high quality, ensure that it's been stamped with a purity mark (like 925) before you buy.
As with silver, gold is a soft metal and so also has to be alloyed with other metals to make it hard enough for jewellery making. Pure gold, for example is yellow, while white gold is gold that has been alloyed with nickel, copper and zinc, and can sometimes look similar to platinum. Generally speaking, platinum jewellery is 90% pure platinum and 10% iridium or palladium alloy. Moreover, jewellery that contains more than 95 per cent pure platinum is marked 'platinum' (950 plat or 950pt), whereas 85 percent pure platinum will be marked 850plat or 850pt. Platinum jewellery is rapidly gaining popularity and other related metals - like palladium and titanium - are, as a result being used with increasing frequency in jewellery-making.

Saturday, December 17, 2011

Silver - The Precious White Gold!

Pure silver (Ag) has a melting point of 1761 (F)/ 961 (C) and its specific gravity is 10.49 units, whereas sterling silver has a melting point of 1640 (F)/ 893 (C) and its specific gravity being 10.36 units.Silver is the most popular metal, owing to a number of factors.
(1) It is a precious metal and therefore anything made in silver has intrinsic value.
(2) Silver is a relatively cheap metal with which to work, taking into account the amounts required to produce small pieces of jewelery.
Pure silver, which is known as 'fine silver', is, like fine gold, a very soft metal and is therefore of little use to the jeweler in this form, except as a plating metal. It is therefore alloyed with other metals to produce harder silver alloys. Silver Alloys:
Sterling Silver
Britannia Silver
This is a higher standard of silver alloy containing 958.4 parts fine silver and 41.6 parts copper. {This standard was introduced in England by Act of Parliament in 1697 to replace sterling silver as the obligatory standard for items of "wrought plate". - Wikipedia
One distinct disadvantage of silver is its affinity for atmospheric sulphur, which produces a golden brown stain or tarnish film. When silver is subjected to successive heating, be it for soldering, annealing, casting, etc., the copper in the alloy oxidizes and forms a grey stain on the surface of the metal. 

Thursday, December 1, 2011

What is 10K, 14K, 24K Gold

There are many metals that are used for making different types of jewelry, including golden jewelry, silver jewelry and diamond jewelry. The market research says that more people, especially women these days are found wearing silver chains, sterling silver jewelry and silver pendants.
Whether it is gold, silver or diamond, their values are measured in karats. Ideal Metal for Jewelry
Gold is an expensive and a valuable metal. The metal does not decay and tarnish. Gold is a very pricey metal. The mixing with nickel, silver and zinc also increases the rigidity and solidity of gold.
24 karat is the pure gold. The second next in purity is 18 karat consisting of 18 parts of gold and 6 parts of other elements, thus equating the purity of 75%. The purity of 12-karat is 58.3% marked and has 12 parts of gold and 12 parts of other elements, mounting it purity to 50%
10-karat comprises 10 parts of gold and 14 parts of other additional elements. This the most impure form, consisting of 41.7% gold. The color can be changed by adding different metals and exhilarating colors to pure gold. Greenish cast gold is prepared by adding silver.
Silver jewelry
If you look up at sterling silver ornaments, including silver chains and silver pendants, you will find a mark of "925" that states that it has 92.5% pure silver in it.

Tuesday, November 15, 2011

925 Sterling Silver Jewellery Information

Pure 99.9% silver is a very precious noble metal, similar to gold in its properties. Its color is white and shinny, malleable and ductile, soft and easy to work with. Pure silver does not oxidize in contact with water or air and does not change colors. Pure 99.9% silver is a very precious noble metal, similar to gold in its properties. Pure silver does not oxidize in contact with water or air and does not change colors. Sterling silver is used to produce durable solid silverware for special occasions, silver trays, utensils, etc. 925 sterling silver is not as expensive as pure silver. Gems and precious stones look even better when mounted in handcrafted silver jewellery rings, earrings, necklaces or bracelets.
Some facts about tarnishing
Noble metals like gold and silver do not tarnish. Men's silver costume jewellery
Last century, most men only wore a wedding ring, perhaps a medal or cross if they were raised Catholic, and their watch. Men wear earrings, studs, piercings, all kinds of rings, bracelets, necklaces, etc.
Rose Gagnon is an expert in the field of noble metals and jewellery, specialized in sterling silver jewellery and pure silver.

Tuesday, November 1, 2011

Silver and Gold Pendants - A Buyers Guide

Pendants are adornments for necklaces. Pendants are often made from various precious metals and decorated with precious minerals or an engraved pattern.
Silver Pendants
Sterling silver is the standard grade used for jewellery. Sterling Silver should be marked '925'.
Gold Pendants
As with most gold jewellery, pendants can be made from yellow and white gold. As gold is not naturally white it is worth being mindful that, over time white gold may need to be restored. A 9 carat, solid gold pendant could contain around 35% pure gold whereas and 18 carat solid gold pendant would contain 75% pure gold. This drastically changes the price. Any solid gold jewellery should be engraved with a hallmark. 9ct gold should have the number '375' engraved and 18ct gold will have '750'.
Gemstones and Decoration
A large number of pendants include gemstones or other decorative materials with varying values. One commonly used material is mother of pearl. Other precious stones may be used to decorate pendants but diamonds are a very popular addition to gold pendants. These are generally set into yellow of white gold of 18ct purity or higher.
Costs
Plain or engraved 9ct yellow gold pendants should cost £50 - £100.