Diamond Jewellery Exhibition cum Sale in Lucknow

Diamond Jewellery Exhibition cum Sale in Lucknow

WE ARE BACK!!
With a Brand New Glittering Collection of Designer Diamond Jewellery by
OTM Jewellery
Jewellery Designers
OTM Diamond Jewellery - Your Favourite Jewellery Brand
Presents
FESTIVAL OF DIAMONDS, A Diamond Jewellery Exhibition cum Sale
on

5 October - 8october September 2013
At

Hotel Gemini Continental

Contact: 9810964599 — at OTM Jewellery

Best jewellers in Delhi

Best  jewellers in Delhi

OTM Jewellery is one of  best  jewellers in Delhi, specializing in the latest  fashionable jewellery made by diamond.With the distinction of being the trend  in jewellery design, OTM Jewellery has an exquisite jewellery collection for wedding jewellery, lightweight jewellery, designer and for working women.

OTM jewellery provide diamond jewellery common man as their tag line " Real Diamond Unreal Price", OTM Jewellery has a variety of schemes for your diamond jewellery dream come true like pay 50% and go with jewellery or pay in instalment and get a high margin on price.- the OTM Jewellery savings scheme and Instalment Scheme - the diamond jewellery savings scheme, which offers the option of buying diamond jewellery in easy instalment schemes.

WHY SILVER IS MOST USED METAL IN JEWELLERY?

Pure silver at 999 fineness is considered as most lustrous and brightest metal on earth. Its beauty of whiteness is unsurpassed in metallurgy. Yet pure silver cannot be used in making jewellery due to its high degree of softness. Hence, it is alloyed with other metals, chiefly copper to make some of the best jewellery pieces in human history. In that process silver has transformed itself into the most widely used metal. Here are few highlights:
1. Silver in its purest form remains the most malleable and ductile of all metals. Malleability refers to the property of being compressed, deformed, extruded, hammered, rolled or otherwise worked into a shape without breaking; while ductility relates to the propensity of being drawn into thin wire without fracturing. Silver is so malleable that it can be beaten into very minute sheet; likewise silver is so ductile that it can be drawn into thin and long wire
2. To give hardness to silver, copper is alloyed; a 50: 50 silver and copper is said to combine features of both these metals. Accordingly the resulting alloy is malleable and ductile, which are features of silver and at the same time strong and tough which are characteristics of copper
3. By using copper, jewellers improve the surface quality of silver into a smooth, fine, clean and touch-friendly manner
4. Silver is harder than gold but softer than copper. For example according to Moh’s scale of hardness gold is at 2.5 while silver has an intermediate range between 2.5 to 3. Copper is always unshakable at 3
5. Silver can be alloyed with gold in any proportion, providing softness and ductility so that intricate designs are facilitated in pieces of jewellery. The caveat is that there must be pinch of copper to give hardness
6. Even though silver is a precious metal its pecking order in terms of value is much less. Jewellers generally add gold, platinum or palladium to give silver a high degree of nobility
7. When making silver jewellery that must last for a longer time or remain stronger throughout, jewellers generally add palladium to the silver-copper alloy so that the finished piece lasts long without ever losing its hardiness and strength.

Maintaining Silver jewellery

How to Maintain Silver Jewellery


1)Water is the main reason for the damage of silver jewellery. Thus while going for a bath, swim or even for spa or steam baths make sure you remove your silver jewellery. Many people think that wiping it well with dry cloths removes the affect of water but that is completely a wrong notion. Water is so damaging that one should avoid keeping it in damp places in the room.
 2)To increase the longevity and texture of the silver jewellery it is best to keep it in a closet or in a box. Dirt or dust never collects over the surfaces and the luster and look is sustained for long. Atleast make sure you have wrapped them in tissue or cotton after removal.
3)Make sure that the silver jewellery that you wear is not exposed to scratches. This is found in bangles or wristlets mostly which are constantly exposed to the desk surfaces leading to scratch marks on its surface and even discolourization of a part of the silver jewellery.
4)Remember to keep away cosmetics and chemical products away from your silver jewellery. Thus make sure they do not come in contact with any kind of body lotions, perfumes or deodorants. This may actually lead to darkening of the metal.

Types of Metals

Typesof Metals


In processing industry and in gem & Jewellery manufacture we find different types of metals are being used. Some of these are mentioned by names and sometimes these are referred to by their types. Here is a list of six types to which most metals belong. Some metals have their presence in more than one berth.

1. Precious Metals: Metal that has intrinsic economic value is considered as a precious one. Economic value is determined by factors such as rarity of the metal, use of the metal in industrial processing, jewellery and coinage, usefulness as an investment vehicle and has potency of being traded widely in an established exchange house or in an over the counter market. Gold, Silver and Platinum are key precious metals. Platinum is an extensively traded metal in the platinum group whose other members are: Ruthenium, Rhodium, Palladium, Osmium, and Iridium. Out of these Rhodium is the priciest item. One of the standalone metals is Titanium which is deemed to be the strongest metal on earth

2. Non-Precious Metal: Any metal that is not classified under precious one is given a blanket description of non-precious metal. Iron, Steel, Lead, Zinc, Tin and Copper are few of the non-precious metals used in processing industry

3. Noble Metals: Metal that has resistance to corrosion or oxidization against air and moisture is grouped under the flag of noble metal. Gold, Silver, Members of the Platinum Group and Titanium are noble metals

4. Base Metals: Metals that oxidize, tarnish or corrode relatively easily when exposed to air and moisture are termed base metals. Base metals have two characteristics: these are available in plenty and the prices are fairly low. Examples include: Aluminium, Lead, Nickel, Copper, Tin, Zinc and Iron

5. Ferrous Metals: The word ‘Ferrus” denotes iron in Latin. By extension, any metal that has iron present in it to an appreciable extent is treated as ferrous metal. In the alternative, an alloy that has high iron content is also given the same label. A prominent ferrous metal is steel used in almost all industrial processes. Surprisingly gem & jewellery fabrication has waken up to the idea of using stainless steel in turning out accessories

6. Non-Ferrous Metals: Metals that do not contain iron in appreciable quantum are flagged as non-ferrous metals. These are priced higher than ferrous metals. Certainly prices for Aluminium, Copper, Tin and Zinc are quoted relatively higher than that of iron in the market place.

How Check Silver Jewellery Purity

How Check  Silver Jewellery Purity

When You are buying silver jewellery, you have to ask the seller how much silver is in the piece as jewellery metal. Unlike in the case of gold jewellery hallmarking in silver is treated with a kid glove. Though there are legal teeth enforcing this for international trade, domestic street jewellers shy away from the practice of hallmarking due to the cost factor. Nevertheless, if you ask them, most jewellers or their sales assistants would oblige by giving you the percentage of silver that went into the article. This is what we call as purity of silver.

The purity of silver, is determined by a Metric system that takes into account the Millesimal Fineness of the main metal used in a piece of jewellery. Basically this denotes purity of the main metal as parts per thousand of the mass of the alloy. Such a purity can be conveyed in three forms. One is to express it as a percentage of the mass of alloy say 99.9%; another way is to say it in number as 999; or in decimal form as 0.999. The decimal representation is also supplemented with the common name in which it is popularly known. For example 0.999 is added with the tag “fine silver”.

The fine silver is pure silver that is much malleable and ductile shining with the lustre and brightness comparable to gold. Yet it is too brittle and breaks and bends while on the production table. Hence, it is necessary to add external metals as alloys to give fine silver strength and hardness and other features necessary to make durable jewellery. There are several combinations in which such alloys can be made. Still a common rule applies: in order for a piece of jewellery to be sold as silver jewellery it must contain at-least 50% silver as the main metal. In certain countries legislation provides a legal minimum for silver in jewellery. For example in the USA, unless it contains 925 silver it cannot be marketed as silverjewellery. Elsewhere jewellers have more elbow room. They turn out pieces with varying percentage of silver in it. Here are few of the most commonplace ones:

1. 925 Silver: Alternatively known as ‘sterling silver” this type contains 925 silver per thousand. By and large, sterling silver is toasted as the standard in many countries including USA and UK. Most jewellers have pleasure in fabricating eye-pleasing 925 jewellery articles using different metals as alloys adding up to 75 parts per thousand. An interesting feature of alloying is that sometimes the resultant material carries the name of the major alloy used there in addition to silver. When silver 925 is alloyed with germanium it is referred to as “Argentum silver”; likewise when Palladium is the major alloy used in an article it goes as “Palladium silver”

2. 935 Silver: Used more in hand-made jewellery 935 silver contains that amount of silver per thousand and an alloy of 65 per thousand. This type of silver is more amenable for intricate carving and exquisite form of gem & jewellery

3. 958 Silver: Alternatively known as “Britannica silver” this type contains 958 silver per thousand with the remaining as alloy metals. Notably, 958 comes out well in thin and soft pieces such as chains

4. 950 Silver: Though the silver content is restricted to 950 per thousand, this type is most popular in France and Mexico where once upon a time this was the silver standard in coins in the respective countries

5. 900 Silver: Once the silver standard for coins in USA, 900 silver is popularly known as “coin silver” amongst the jewellers. However, it does not restrict the name coin silver being used for an alloy containing less than 900 per thousand. Exercise care when dealing with silver jewellery marked as coin silver grade. It is better to see the hallmarking in addition to the name coin silver in such piece of silver jewellery.

Jewellery Care

Tips to take care of your Jewellery:

·         Protect your jewellery from sharp blows, scratches, chemicals, perfumes/sprays/spirits, and extreme temperatures.

·         Keep your jewellery in a clean and dry box.

·         Check your jewellery regularly for chaps, loose stones and other signs of damage, and get them repaired immediately.

·         Gold and silver jewellery might get be tarnished if not worn regularly. Place anti-tarnish strips in the jewellery box and wipe it using a soft cloth regularly.

Caution:

·         Avoid doing kitchen and other household work while wearing your jewellery, since body oils and sweat secretion can affect your jewellery.

·         Avoid wearing jewellery while swimming as the chlorine in the water may damage it.

·         Remove your jewellery before using products that contain bleach.

·         Remove your jewellery before bathing as soaps and solutions may cause a fine film to develop on the surface that can dull its appearance.

·         Avoid keeping precious jewellery in cardboard boxes as they are treated with sulphur, which tarnishes silver and gold.

 Cleaning:

·         You can use professional jewellery cleaning products for cleaning your jewellery. However, you should ensure that they do not contain acids, alcohol, vinegar or ammonia.

·         You should wipe your jewellery clean with a soft cloth after every wear to remove sweat, body oils and make-up from its surface. Always use a cotton cloth for cleaning jewellery as paper, coarse or polyester fabrics often have synthetic or wood fibres that can scratch the metal surface.

 Storing:

·         You can keep your jewellery in soft cloth pouches, curio cabinets, fabric-lined jewellery boxes, zip-lock bags, or jeweller’s tissue.

·         Keep your jewellery pieces separately so that they do not develop scratches as result of rubbing against each other.

 Travelling with jewellery:

·         It is advisable to invest in a jewellery travel case that will protect your jewellery from scratches and damage. Such cases are usually made of leather or fabric so they can be easily rolled and stored in suitcases, bags, or attaches.

 Gemstone specific tips:

·         Pearls might be dehydrated if kept in a closed box for long. Therefore, you should wear your pearl jewellery often.

·         Don’t keep pearl jewellery in plastic bags.

·         Stones like turquoise, pearl, opal etc. are absorbent in nature. So, you should not leave them in water for long.

 Fashion jewellery specific tip:

·         Usually, gold plated jewellery has 1-3 microns gold coated over a metal or alloy base. Since, the coating is very thin, you must protect the jewellery against scratches etc., lest they lose their sheen and beauty.