Please Wait...


Frequently Asked Questions

Below you can find the answers to some of the most commonly asked questions. . .

Where do diamonds come from?

Diamonds are made up of pure carbon atoms that exist deep in the ground, exposed to intense heat and pressure over billions of years. Diamonds were first discovered and mined in India over 2,400 years ago. Over time, diamonds were found in many other areas around the world, including many in Africa. In today's trade, Africa, Russia, Australia, and Canada produce the most diamonds.

A quick, fun fact: The first diamond deposits were brought to the surface of the earth approximately 2.5 billion years ago. The most recent deposits are roughly 50 million years old. Your diamond is a truly unique piece of history

What Are the “Four C’s”?

Seriously? If you have no idea what they are, I’m not sure what you had been reading on our website so far. Now, pay attention in class! One of the first things you should learn about diamonds is information regarding the four main characteristics. These are cut, color, clarity and carat.

Out of these four, color and clarity denote the material quality of the stone, carat represents the weight of the stone (1 carat = 200 milligrams) and cut represents the only human factor coming into play. The quality of the work that the cutter has put into the given stone determines the luster and beauty of the stone.

How is a diamond cut?

As a first step, cleaving or sawing is often used to separate the original rough into smaller, more workable pieces that will each eventually become an individual polished gem. Next, bruting grinds away the edges, providing the outline shape (for example, heart, oval or round) for the gem. Faceting is then done in two steps: during blocking, the table, culet, bezel and pavilion main facets are cut; afterward, the star, upper girdle and lower girdle facets are added.

Once the fully faceted diamond has been inspected and improved, it is boiled in hydrochloric and sulfuric acids to remove dust and oil. The diamond is then considered a finished, polished gem.

What is the difference between a "certified diamond" and a "non-certified diamond"?

There is no physical difference between a diamond that is certified and one that is not. A certificate does not change the nature of a diamond in any way. The difference between a certified and an uncertified diamond is that, with the certified diamond, you have tangible, legal assurances as to the particular nature and quality of the diamond you are purchasing.

A certified diamond comes with a diamond grading report guaranteed by an accredited gem lab. This report assures the customer that the diamond is independently recognized as possessing all the qualities specified by that report.

On the other hand, an uncertified diamond has is not accompanied by a diamond grading report, and therefore its stated quality is based only on the word of the seller.

An uncertified diamond is not necessarily a bad diamond; certainly, it can be as beautiful as its certified counterpart.

Is it safe to receive a diamond in the mail?

Yes and no. It is safe if the diamond jeweler uses insured carriers (e.g., FedEx and UPS) to ship its packages and all shipments are insured for the full value of their contents.

Before buying a diamond online, find out what the store's policy is in case of lost shipments. A professional diamond jeweler should have no objection to providing either a replacement or a refund.

What is R.Rajesh Exports doing to Protect the Environment?

R.Rajesh Exports views the protection of the environment as both a moral obligation and as a business imperative. We are committed to obtaining precious metals and gemstones in ways that are socially and environmentally responsible. We are proud of our accomplishments and want to keep you informed about our continuing challenges and progress. To learn more about R.Rajesh Exports efforts to protect the environment.

What is R.Rajesh Exports doing about the Problem of Conflict Diamonds?

R.Rajesh Exports & Co. is committed to sourcing our materials in an ethical and sustainable manner. The company has a long history of environmentally and socially responsible practices, and we believe that sourcing our precious materials responsibly is of the utmost importance.

R.Rajesh Exports has a zero tolerance policy towards conflict diamonds. We have taken vigorous steps to assure that conflict diamonds do not enter our inventory. R.Rajesh Exports buys diamonds directly from the mine, where possible, and always from countries that are participants in the Kimberley Process.

How Can You Make Sure a Diamond Is What the Jeweler Say It Is?

Buy only diamonds that are graded by Any Diamond Lab. Check the laser inscription of the diamond to make sure it tallies with the information on the grading report. You should also loupe the diamond and match inclusions with the clarity plot shown in the certificate.

What shape is the best?

It depends on your preference and your finger shape. Please consider all shapes to see which best suits your style. Fancy shapes (All shapes other than round) tend to look larger than rounds, yet round brilliants hide inclusions and yellow tints the best.

Does the price of diamonds change often?

The price of diamonds does fluctuate slightly due to many reasons, such as:

  • USD to NZD exchange rate fluctuation, as diamonds are bought and sold in USD, the prices are subject to the days rate.
  • Fluctuating demand as it is a world market.
  • Fluctuating supply as it is a natural gem, there is only a limited amount that is mined each year.

What clarities will not be visible through the naked eye?

With most reputable laboratories, the following grades are considered eye clean, IF, VVS-1, VVS-2, VS-1 and VS-2. Some of the SI-1 and SI-2 clarity grades are also eye clean.

What does fluorescence mean?

A small proportion of diamonds have fluorescence, which means they contain particles that emit a visble glow when they are put under UV lighting. This glow is usually blue. In some cases when stones are highly fluorescent, the stone can appear cloudy or hazy, but in most cases fluorescence does not usually impact the sparkle and shine. In lower colors below (below J), fluorescence can often enhance the color to make it look whiter.

Is a diamond a good investment?

For the past decades, diamond prices have been steadily increasing and historically, hold their value. Although, whether investing in diamond is good or not depends on if you are investing in the diamond itself or in what a diamond represents.

Can a diamond break or chip?

Even though diamonds are the hardest element discovered, they can still be damaged from abuse. Also another common way of chipping diamonds are when one diamond hits another. Therefore, you should be careful when wearing expensive jewellery, paticularly when doing labour intensive work, and should take care when storing multiple jewellery items together.

How should I clean my diamond?

Anything that cuts grease will help remove the build-up of oil and dirt from a diamond. Commercially prepared jewelry cleaner is perfectly suited for this purpose as is a simple dishwashing detergent and a bit of ammonia. You can of course also ask your jeweler periodically to clean your diamond jewelry. He will on the same occasion verify the setting to make sure your diamond remains in place.

What guarentee do we offer?

All of our diamonds are certified by international graders, therefore you can be guaranteed of the quality, grade and specification of our diamond

Contact Us


Name : *
E-Mail ID : *
Contact No. :
Company Name :
Subject :
Message :