As good as gold
Many a war has been fought for this metal, many an economy has risen and tumbled due this metal. Indians particularly are crazy about this one, and this yellow metal has been with mankind since the beginning of time, well almost. The legends and myths about gold are many, in fact in the epic Ramayan, Sita, the consort of Lord Rama is described as ‘kanchan Sita’ thereby attributing the colour of gold to her complexion. Yes, gold is what Indian dreams are made of. A bride can be without diamonds or any other gem, but she will rarely be without gold, at least a thread! Gold is one metal that will always remain high on the popularity chart irrespective of its fluctuating prices. It is said to be resistant to rust or corrosion and is a toughie. Inspite of its toughness, it is most malleable, thereby making it perfect to be fashioned into jewellery. Its colour has inspired many a song and story. In the days bygone, only royalty and the very rich were allowed to wear gold, thankfully those days are long past! It perfectly complements all the gems and is beautiful just by itself too. It makes an ideal and memorable gift too.
24k gold is considered absolutely pure, but it is too soft to be made into jewellery. Most of the jewellery in India is fashioned from 22k gold and internationally 18k gold is more popular. Gold is usually mixed with other metals to make it stronger and more durable.
What are the indications of the purity of gold?
K means karatage. 24k, 22k, 18k and so on. In 18k gold there is almost 75 per cent gold, while 14k has almost 59 per cent gold, the rest is comprised of other metals. 24k is 100 per cent pure gold.
The following shows the Karatage preferred for jewellery:
Sometimes, gold of a lower karatage is plated in higher-karat gold to enhance its colour. This is perfectly acceptable as long as the jeweller discloses this fact and you pay a fair price. Keep in mind that gold plating will wear off over time and your jewellery may need to be re-plated.
To determine the karatage of a particular piece of jewellery, look for the quality mark. Generally, pieces will either bear the stamp of their karatage based on the U.S. or European system. The U.S. system uses karat designations (24K, 18K, 14K, 10K, etc.) Europe uses number designations which correspond to the percentage of gold content. For instance, 10K is marked "417" for 41.7% gold; 14K is marked "585" for 58.5% gold; 18K is marked "750" for 75% gold, etc.
The colour of gold is determined by two factors:
While yellow gold is still probably the most popular colour of gold, by mixing gold with other alloys, jewellers can create stunning golden shades. White gold, pink gold, rose gold, orange gold and even green gold are just some of the many colours of gold.
Gold has a warm yellow colour in its purest form. Even when it is alloyed with other metals, such as copper with a red hue, and silver featuring a green hue, an expert mixture will retain its signature warmth.The richness of the Gold colour is directly affected by the percentage of Gold in its alloys: therefore, 18k Gold has a richer Gold colour than 14k Gold.
A silvery white character is what makes white gold jewellery so appealing. In order to make the gold white, it is combined with metal alloys that are white in nature and plated with an extremely hard element called rhodium. Although strong, rhodium may wear away over time. Replating is a simple process that can be done to restore whiteness to your jewellery.
White Gold with Black Rhodium
Black rhodium is plated to white gold creating a rich black appearance that is extremely hard and strong. As with traditional white rhodium, black rhodium may wear away over time. Replating will restore your jewellery’s black finish..
The beautiful pink hue of rose gold jewellery is created by using a copper alloy. The overall percentages of metal alloys is the same for rose gold as it is for yellow or white, but there is just a different mixture of alloys used.
BIS Hallmarking & Certification
Hallmarking of gold jewellery is on a voluntary basis under the Bureau of Indian Standards Act, 1986, in accordance with the Vienna Convention’s international criteria on hallmarking.
A Hallmark consists of five components :
The marking is done either using punches or laser marking machine.
The BIS hallmark, a mark of conformity widely accepted by the consumer bestows the additional confidence to the consumer on the purity of gold jewellery.
A jeweller desirous of obtaining a license can apply to the BIS for use of the Hallmark on their jewellery. After registration, BIS officials conduct a preliminary inspection for verification of retailing/manufacturing premises, testing facilities and competence of testing personnel. A sample is drawn from the jeweller’s retail/manufacturing premises for independent testing. Based on a satisfactory preliminary inspection report and test report of the sample drawn during inspection, a license is granted to the jeweller.
Once licensed, the jeweller has to follow a BIS approved scheme of testing and inspection on a continuing basis to confirm the homogeneity and purity of the gold jewellery offered for hallmarking.
A BIS certified jeweller should register with any of the BIS recognized Assaying and Hallmarking Centres to have his jewellery hallmarked.
BIS maintains surveillance on certified jewellers at a defined periodicity. Market surveillance involves collection of hallmarked gold jewellery from licensee's retail outlet/manufacturing premises and having it tested for conformity in BIS recognized Hallmarking Centre.
Deviations in degree of purity of fine metal and observance of operations not in conformance to the system may result in cancellation of BIS license, and invoke legal proceedings for penalties under the BIS Act, Rules and Regulations.
The principal objective of assaying and hallmarking is to protect a consumer against victimization of irregular gold quality.
Price of Gold Jewelry
In addition to the karat weight and market value of gold, several other factors determine the price of Gold jewellery. These factors include, but are not limited to, total weight of the jewellery, design and construction, and ornamental detailing such as engraving and the finish of the metal. Although nearly all Gold jewelry today is made with the help of special machines, some hand work is almost always involved, and the more hand work that is involved, the higher the price.
Called the "King of Metals", platinum is a very heavy (nearly twice the weight of gold), silver-white metal that is very ductile. Although it is a soft metal, platinum is not easily scratched, never tarnishes, and is very strong and durable. It is the strongest precious metal used in jewellery, and has good resistance to corrosion and chemical attack.
Platinum is also the only precious metal used in fine jewellery that is up to 95 percent pure. Small amounts of iridium and ruthenium are commonly added to it, to give it a harder, stronger alloy that retains the advantages of pure platinum.
Platinum's subtle beauty and its tendency to not add colour of its own, enhances a diamond's natural brilliance and fire, making it an excellent metal for diamond jewellery settings. It does not change shape or wear away so precious stones are held firmly and securely.
Because of its purity, platinum is naturally hypoallergenic, a plus for people with sensitive skin or allergies to certain metals.
Today, platinum is more valuable than gold. Although it is used in many industrial applications, including the automotive industry, platinum jewellery consistently commands higher prices because of its rarity.
When judging the value of platinum jewellery, always ensure that the material is indeed platinum (and not another metal, such as white gold) by checking for the amount of platinum content on the back of the piece. Platinum content is usually marked as "950Pt", "950 Plat", or "Plat". In the United States, in order to be marked "Platinum" or "Plat", a piece of jewellery must contain at least 95% platinum.
Sizing platinum rings is difficult. The great amount of heat necessary to work with platinum is not practical for local jewellers to work with. What they do instead is use a 14K white solder, which turns into a black line on the bottom of a ring. The best way to size a platinum ring is by using modern laser technology, which only a handful of companies offer directly to consumers.
Platinum and White Gold
Platinum is usually compared to white gold in jewellery. Both appear the same, with a silver metallic look that shines more than yellow gold. However there are some major differences between the two.
Platinum is naturally white, with purity of 95%. White gold, which is typically either 75% or 58.5% gold, is then rhodium plated to provide a white finish. The thin plating usually needs to be replaced over time to maintain its white colour.
Platinum is not susceptible to problems with stress, corrosion or stress cracking, as can be the case with white gold. (This problem mainly applies to prong settings etc.)
Platinum is denser than gold, so an identical ring made in platinum rather than 14kt gold would be around 60% heavier and 40% heavier than a ring made in 18kt gold.
Platinum’s rarity means that its price is invariably higher than that of gold.
The process of making a piece of platinum jewellery also requires a higher level of craftsmanship.
So what should you purchase?
For high wear items like rings and bracelets, or items that will be worn daily, platinum is the better choice.
For all-white gold and fashion jewellery like a bracelet or necklace, then rhodium plating will actually be best, as it will look very white and most likely never need to be re-plated.
For two tone wedding rings, we strongly suggest a platinum + yellow gold combination. It will be more expensive to size, but will not require additional rhodium plating or much maintenance.