4C’s- When searching for diamond most principal features to develop is 4C’s (CUT, CARAT,COLOR,CLARITY).

It is been recomended to give DIAMOND CUT the centre of attention of all. The hardness of diamond also stand as a important feature while selecting diamond. Real diamonds doesn’t get break away that easily because of its strength and formation process. Diamond gets their intensity from three artefact. (REFLECTION, REFRACTION AND DISPERSION). When the Reflection of light smacks the diamond and instantly rebound back with a shine is a sign of Real Diamond.

Refraction term in a diamond is the place when light is moving from one medium to another medium, and speed of light in the vaccum is 2.42 times the speed of light in diamond. DISPERSION in diamond is a attractive effect when light travel o a diamond and gets divided to all the rainbow color and gives back a magnificient view to a user’s eye.

Certificate
You should check the certificate of your purchased diamond. Diamonds there are certain certificates for authenticity and trust. These certificates can include Diamond quality, serial number on the girdle, validity that it is organic, color, clarity, weight etc. There are labs which issue the certificate, details irrespective of the Diamond’s market value. For quality Diamond and authenticity, ensure that the grading certificate issued is of a reputed lab. Some labs offer online services, you can verify the specifications. You can also ask the seller the process and the origin of the diamond.

Conflict Free
There are so many lives associated with diamond processing; you should need to know that whether the diamond is coming from legitimate and ethical way or not. When buying a diamond product, consumers should ask for a guarantee that the diamond is conflict-free. It is your duty to make sure that the diamond product you buy is clean with no tear or blood on it. Your money should go into right hand. It shouldn’t be at the cost of lives of innocent people. Your urge for a conflict free diamond will play an important part maintaining peace in our beautiful world.

Check For ‘Scratches’ Caused by Improper Polishing Once the diamond is cut, each of its facets is polished; in case this is not done perfectly, it may lead to easily visible scratches on the exterior surface of the diamond. These blemishes are similar to those left behind on a car after waxing. Therfore, it’s best to go for diamonds that have no or few scratches.

HERE IS HOW TO CHECK IF A DIAMOND IS AUTHENTIC OR NOT.
FOG :
For the fog test, hold the diamond or ring between two fingers and breath on it with a puff of air. A light fog will form on the diamond because of the moisture and heat in your breath. If the fog dissipates right away, the diamond is real. If it takes several seconds for the fog to disperse, it is likely a fake diamond.
Diamonds effectively conduct heat and therefore disperse heat quickly.

WATER:
This one's easy: Get a glass and fill it with water (it doesn't matter what type of water you use). Drop the diamond into the glass of water. Due to the high density of diamond, when dropped into water a real diamond will sink. If the diamond floats to the top or middle of the glass, it's fake. It's simple physics.

Check the setting and mount:
A real diamond is not likely to be set in a cheap metal. Stamps inside the setting indicating real gold or platinum (10K, 14K, 18K, 585, 750, 900, 950, PT, Plat) are a good sign, while a "C.Z." stamp will give away that the center stone is not a real diamond. C.Z. stands for Cubic Zirconia, which is a kind of synthetic diamond.

Use a jeweler's loupe to inspect the diamond
You can usually borrow one from the jewelry store. Mined diamonds usually have small naturally occurring imperfections, which are called "inclusions," that can be seen with a loupe. Look for small flecks of minerals, or very slight color changes. These are both signs that you're dealing with a real, albeit imperfect, diamond.

Heat the Stone and See if it Shatters:
Diamonds are made of incredibly strong material and will be unresponsive to high heat. To test this, grab a drinking glass and fill it with cold water. Use a set of plyers or fireproof gloves to hold the stone. Heat the stone with a lighter for approximately 40 seconds, then drop the stone directly into the cold water.
If the stone shatters, it is made of weaker components and is not a real diamond. A true diamond will show no reaction.

This method tests the quality and strength of the stone. Because of the quick expansion and contraction of heat, weak materials like glass or cubic zirconium will crack and break. Think of a glass or Pyrex dish you use for cooking. If you pull the dish out of a hot oven and try to wash it immediately, the shock in temperature change may shatter the dish. Because diamonds are one of the strongest materials on the planet, it will be resistant to such heat tests. Heat will disperse quickly and the diamond won’t be affected by the change in temperature.

You can refer Tanache Jewels Size Guide.

Brief History of GIA
Founded in 1931, the Gemological Institute of America (GIA) is an independent, non-profit organization widely considered as the world's foremost authority in gemology. Introduced in 1953, their diamond and gemstone grading system is recognized as an accepted standard worldwide. Gemstone manufacturers from around the globe send diamonds and gems to the GIA for expert examination and analysis.

GIA Diamond Grading
The GIA Diamond Grading Report is issued for diamonds that fall in the D-Z color range. This detailed report includes a full quality analysis of shape and cutting style, measurements, carat weight, color grade, clarity grade, cut grade (for brilliant round-cut diamonds), polish and symmetry assessments, and fluorescence. The report also includes a plotted diagram indicating the relative size and location of clarity characteristics, a proportion diagram, and GIA grading scales.

HISTORY OF AGS
In 1934, a small group of jewelers who wanted to protect buyers from false advertising and fraud in the diamond industry established the American Gem Society (AGS). They were the first organization to release a diamond cut grading system when they did so in 1966.
Today, the AGS provides retailers, jewelers and individuals with gemological knowledge, research, consumer protection and standard grading of diamonds. With clear and consistent grading, the AGS is one of the most trusted lab grading entities in the world.

AGS DIAMOND GRADING REPORT
The AGS evaluates each diamond based on its qualities and components. It issues a grading report that includes details on everything from the cut quality to the carat weight. When reviewing an AGS diamond grading report, look at each aspect to verify what you’re buying.

Diamond Quality Report
The AGS diamond quality report gives you grading and description of the diamond you’re buying. It’s a complete analysis offered for round brilliant, oval, emerald, princess, and cushion cut diamonds. As you can see in the report below, the AGS diamond grading for the cut, color, clarity, and carat are all listed. There are further details under Cut such as light performance, symmetry and polish. You ​ can also see important measurements of the diamond’s table, pavilion, and other components. There’s also a plot showing any inclusions on the diamond.

IGI DIAMOND CERTIFICATION
The IGI started out as the blue color workhorse of the diamond business. They were the most popular gem lab for the major jewelry chains in the US and Canada (Kay, Zales, etc.) They are like a factory. They work fast, and their prices are much better than GIA’s and AGS’s.

Before we define exactly what a ‘conflict-free’ diamond is, it’s important to understand the term ‘conflict diamond’ (also referred to as ‘blood diamond’). These diamonds are defined as, “illegally traded to fund conflict in war-torn areas, particularly in central and western Africa, according to the World Diamond Council, which represents the commercial diamond trade.”

So what are conflict-free diamonds? Back in 2000, many states in South Africa had had enough. They met to agree upon a process that would stop the trade of conflict diamonds. In the end, over 70 countries, the United Nations, the World Diamond Council, and the European Union agreed upon an organization aimed at encouraging ethically sourced diamonds, commonly known as the Kimberley Process — formally known as Kimberley Process Certification Scheme (KPCS).

As a member of the Kimberley Process, you’re ensuring that your diamonds are ‘conflict-free’ and you cannot trade with non-members. The goal was to push out individuals who were still participating in illegitimate practices and try to bring peace to many of the war-torn areas. However, the only proof of a batch of diamonds that have gone through the Kimberley Process is a certificate that details where the diamonds were mined, how they were extracted from the earth, where they were cut and polished, and their intended destination. And while it may be easy to assume that the process guarantees ethical diamonds, difficulties came when it was discovered that members of the KPCS were continuing unethical practices and getting away with it due to lax political will.

Less expensive The price of a lab-created diamonds tends to be less than mined diamonds. However, this does not mean that a lab-created diamond is “cheap.” In fact, the capital costs for lab- grown and mined diamonds are pretty similar.​
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So, why are lab-created diamonds less expensive? Mined diamonds and lab-created diamonds have the exact same costs when it comes to cutting, polishing, and inspection. However, up to that point, the costs and processes are very different.​
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Mined diamonds have a long supply chain. To get a diamond from its raw form to a retail-ready gemstone requires miners, distributors, cutters, polishers, jewelry manufacturers, and retailers. On the flip side, the lab-created diamond supply chain is much shorter by skipping the mining process. To put it simply, a lab-created diamond touches fewer hands, making it ultimately less expensive.​
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Ethical Several years ago, the mined diamond industry came under scrutiny with unethical production practices were exposed. These diamonds, sometimes referred to as blood or conflict diamonds, were funding violence and exploiting miners and their families. Thanks to the Kimberley Process, established in 2003, these unethical practices have been significantly reduced. In fact, it’s estimated that 99.9% of natural diamonds are now conflict-free. However, if avoiding conflict or blood diamonds is important to you, lab-created diamonds provide peace a mind that a natural diamond often cannot, and you may find reassurance in knowing the exact origin of your diamond.​
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Environmentally Kind As with the mining of any natural resource, the diamond mining has a significant impact on the environment. To be fair, diamond mining companies are fully aware of that impact and have taken steps to try to minimize the effect they have on the ecosystems around them. However, lab-created diamonds are inherently and significantly less detrimental to the environment as it takes considerably less energy to grow a diamond in a lab than it does to dig it out of the ground. In fact, it is actually in the interest of the growers to minimize the amount of energy they use in the process to save money and decrease their costs.

The remarkable technology behind hpht and cvd diamonds.

The dream of making a beautiful and valuable diamond from simple carbon has long captivated the imagination of scientists and visionaries alike. Just like the alchemists of old who sought to turn lead into gold, many have tried to achieve this impressive feat. We have only recently been able to produce gem quality, lab grown diamonds that are large enough to be used in jewelry. But, how is it done?

Early Efforts
Throughout history, many people have claimed to have successfully synthesized diamonds. However, it was not until relatively recently that a documented and reproducible process was demonstrated. Henri Moissan was one of the early pioneers in the field. In 1893, he claimed to have successfully made a diamond by heating charcoal to 3,500 degrees Celsius inside a carbon crucible. Many attempts were made to reproduce his techniques with some reported successes, but none could ever be scientifically verified. The quest continued.​

Diamonds are a crystalline form of carbon, and so making artificial carbon crystal was the problem of lab grown diamonds. For decades, manufacturers of synthetic gemstones tried growing diamonds like they grew rubies, sapphires, and emeralds. It failed. Then they had the idea to grow diamonds in the lab like they grew in nature.

HPHT DIAMONDS
When using the HPHT process, pure carbon and a tiny piece of diamond referred to as a starter seed, are placed in a high pressure, high temperature chamber. As the carbon is heated, it melts around the starter seed and a diamond is created. At this time, the HPHT process makes it possible to create much larger diamonds than the CVD process.

CVD DIAMONDS
A diamond made using CVD begins with a narrow slice of diamond seed and places it in a sealed chamber. By filling the chamber with hydrocarbon gas mixtures and ionizing them into plasma using lasers, microwaves and other techniques, the molecular bonds in the gases are broken and the pure carbon sticks to the diamond seed. This process does not require high pressure and the temperatures, while still high are nowhere near what is required for HPHT.

Lab-created diamonds (which have also been referred to as lab-grown diamonds, synthetic diamonds, artificial diamonds, cultivated diamonds or cultured diamonds) are man made diamonds that mirror real, natural diamonds. Because they actually consist of carbon atoms structures, lab- grown diamonds display the same chemical and optical characteristics of a natural diamond crystal produced by the geological processes of Mother Nature. Synthetic diamond prices are generally lower than real diamonds, and the price of lab-created diamonds continues to drop (as much as 30% in a year). This is due to lab-grown diamonds not having any resale value and that the demand for lab-grown diamonds continues to decrease.

You can’t tell the difference between lab-created diamonds and real diamonds without specialized equipment, even if you’re a professional gemologist. The best way to tell the difference between lab- grown diamonds and real diamonds is to look at the grading report.

If a professional gemologist is determining if a diamond is real or lab-grown, they use magnification to look at the nature of the inclusions. The inclusions in a natural diamond appear slightly different than in a lab-created diamond. There are sometimes also differences in how the diamond reflects light compared with a synthetic diamond.

In general, though, when looking at a lab-created diamond next to a real diamond, you can’t distinguish the two.

Half carat diamond is considered to be most ideal for rings and pendants. However, for earrings 1 carat total diamond weight is the most ideal.

At Tanache Jewels, we believe in moving on from civil wars to peace and friendship, from violence to friendly relations, from poverty to friendly wages, from unsafe to friendlier working conditions and from pollution to earth friendly practices. Our diamonds are 100% ethical and rightly priced. Friendly diamonds has most advanced factories with stringent quality control methods that ensure uncompromised finest quality.

G-H/SI quality diamonds are most commonly used on our jewelry. But we do offer all quality based on special demand. We do offer customized solutions for our beloved shoppers as well.

Yes, all Tanache rings are resizable except for some design types where resizing can damage the setting of diamonds. Most others can still be resized.

Tanache Jewels jewelry comes with a lifetime guarantee. You will have to arrange to send your jewelry to our New York office and we will repair your jewelry free of cost to you*. But please note that repairs due to mishandling are not covered under free service. Please get in touch through the contact us form to know more.

Tanache Jewels jewelry comes with 30 days money back guarantee. Please get in touch to know more about returns and exchanges.