Power of Gemmology By Prachur Singhal

Diamond Jewellery The 4 C's of diamond   1. Clarity:- When we speak of a Diamond's clarity we are referring to the presence of birthmarks or tiny inclusions on or within the stone. If you think about the incredible amount of heat and pressure it takes to create a Diamond, it's no surprise that many Diamonds have inclusions, scratches, blemishes and spots on their surface or inside. If other factors are equal then a flawless diamond is more expensive. Diamonds are graded for clarity from Internally Flawless to included.  2. Cut:- Cut unlocks the natural brilliance of Diamonds. It is perhaps the most important of the 4 Cs. For, the cut not only reflects the general outward appearance of the diamond such as round, emerald or pear shape, but it also gives it its reflective properties. Since a Diamond is only a reflector, a well shaped, excellent cut Diamond gives maximum brilliance as it reflects all the light entering from the front. An Excellent polish and symmetry maxim

Today I got an opportunity to make understand the pricing policy of gold when people came to jeweller to buy gold ornaments people have various questions regarding the gold price hall mRk and the labour charges . It can be better understand by the small example As we know that the rate of gold fluctuates daily it is some times high and low For example MR  Amrish Kumar Choubey  wants to purchase a gold set of weight say 25 grams and the gold rate per ten gram is displayed in  the showroom say 31000 of pure gold The ornaments are of 92 percent that is 22 karat ten the rate for 22 karat will be 31000X92/100 = 28520 for 92 percent hallmark jewellery 22 karat So 1 gram of gold will be of Rs 2852 The labour charges are different on all jewellery suppose we take 480 per gram Then we will add the labour charges in one gram of gold price that we have calculated above One gram of gold including labour charges will be 1 gram of gold = 2852 Per gram labour charges= 480 One gra

 What is hallmark? Ans. Hallmark is a third party certification of the purity of gold . In other words, it tells you the percentage of pure gold present in your gold jewellery. In India , this is done by Assaying and Hallmarking Centres , authorized by BIS, confirming to the necessary standards. The necessary standards are IS 1417 : 1999 for jewelers and IS 1418: 1999 for Hall Marking centres . This was introduced by Govt of India to safe guard the interest of consumers.Gold  articles are evaluated and tested at an official Assaying and Hallmarking Centre and then certified that the metal used confirms to the National and International Standard of fineness and purity. License is granted to the jewellers by BIS under Product Certification Scheme. The BIS certified jewellers can get their jewellery hallmarked from any of the BIS recognized Assaying and Hallmarking Centre. It will provide clear indication of a jewellers capability, strong evidence of commitment to quality and

Check list to help you make Gemstone's best buying decision: 1. Always take a gemstone’s certificate provided by an internationally recognised laboratory. 2. Look for the status of treatment (heated or unheated) carefully in the certificate. 3. Conversion of carat and ratti should be clear. Carat is the international unit for weight of gemstones, calculate and buy in carats.  4. For a genuine purchase decision stay with a professional or a jeweller with serious gemological training. 5. You must take a detailed bill of your purchase; it works as an undisputed future reference document. Conversion from Carat and Ratti to mg 1 Carat = 200 mg 1 Ratti = 121.5 mg (in ayurveda this Rati is used) or 1 Ratti = 182.25 mg In India people generally buy and sell gemstones according to Rati weight, but it is advised to buy them according to Carat weight because carat is a standard measurement. Ayurvedic Ratti 1 tola = 11.664 gms 1 tola = 12 masha 1 masha = 8 ratti 1 tola = 1