Showing posts with label colour. Show all posts
Showing posts with label colour. Show all posts

Fancy and Coloured Diamonds

The most famous diamonds in the world are coloured, or fancy, diamonds. The Tiffany Diamond, which is yellow, and the Hope Diamond which is blue, are coloured diamonds. Coloured diamonds vary from red, green, purple, violet, orange, blue and pink – and most shades between. Fancy colour shades vary from faint to intense.

Treated and Synthetic Diamonds
Fancy coloured diamonds are all the rage these days. Gemologists have developed new ways to create versions that are affordable for the average person - by treating less desirable diamonds. These less desirable diamonds are treated with irradiation followed by intense heat. This turns brown and yellowish diamonds into beautifully coloured diamonds that you can afford. This produces stunning greens, blues, yellows, reds, purples and other colours. These colours are considered permanent, but there is a possibility they could change during repairs if a high heat is used.

Treatments like irradiation make it possible for more people to own these vividly coloured diamonds. Most natural coloured diamonds are rare and also extremely expensive. When shopping for coloured diamonds you need to assume that any affordable fancy colour diamond has been treated. Ask about the stone's origin and request to view a lab certificate to verify authenticity.

Synthetic coloured diamonds are another option if owning a coloured diamond is something you desire but cannot quite afford. They are real diamonds, but they are created in a lab.

Natural Diamonds
Natural fancy colour diamonds get their colouring from different trace elements present in the stones, such as nitrogen, which produces a yellow diamond. Diamonds can be coloured by exposure to radiation during its creation. An example of a diamond affected by radiation is the green coloured diamond.

Another way that a natural coloured diamond gets colour is by its inclusions. Regarded as flaws and undesirable in a colourless diamond, inclusions give unique tones and brilliant flashes of colour in a fancy colour diamond. Remember that natural fancy coloured diamonds are very expensive, any coloured diamond labeled to be sold as natural should be accompanied by a certificate from a respected grading lab.

Coloured diamonds have an amazing financial track record. The value has never decreased on wholesale level in more than 30 years. Blue and pink diamonds have doubled every 5 years of a strong economy. In the 1970’s you could have bought a very high quality blue diamond for about 50K and today the very same stone would be worth between 2 and 3 million.

About Diamond Grading Reports And Certificates

A diamond certificate is also known as a Diamond Grading Report. This report comes from the Gemological Institute of America (GIA), and you should require this report when you are purchasing a diamond.


 With a diamond certificate, you can verify the color, cut, carat weight, and clarity of the diamond. You don’t have to worry about a diamond dealer telling you anything less than the truth, because the certificate comes from the GIA – not the dealer. You may be required to pay for the certificate, but the cost is usually low, and in many cases, it will help you negotiate a better price on the diamond – or keep you from purchasing a lower quality diamond altogether.

If you buy a high quality diamond, and then later decide to sell the diamond, you will need to have the certificate, or you will have a hard time selling it to someone else. Furthermore, you can use the Diamond Grading Report to look up the wholesale value of the diamond in question. Use the guide that is used by the diamond cutting industry.

With the Certificate, or Diamond Grading Report, there won’t be any doubts when you are trying to purchase a diamond. You can easily find out what the diamond is worth. This will prevent you from overpaying, and it can prevent a seller from under-charging as well.

A copy of the Diamond Grading Report should be given to your insurance company as well, when you insure the diamond. This provides absolute, unquestionable proof of the value of the diamond should it be stolen in the future. Insurance companies cannot argue with the report.

Avoid diamond dealers who seem reluctant to provide a certificate! Also avoid sellers who tell you that a certificate diamond will cost you more – the only additional cost should be the cost of the certificate, which is low. If the dealer doesn’t want to provide a certificate, then you don’t want to do business with that dealer.

Don’t accept certificates from gemological laboratories other than GIA. There are many fly-by-night gemological labs these days, but in the end, GIA has been established as the most respectable and trustworthy – not to mention oldest – of the lot. So avoid dealers who don’t want to use GIA for certification purposes as well.

Don’t buy an expensive diamond without paying the extra cost of the certificate. If a dealer tries to convince you to make the purchase without the certificate, or if they want to use a company other than GIA, you can be sure that the dealer has probably greatly inflated the price of the diamond – they have something that they are hiding from you.

How To Determine Diamond Prices

Pricing most products is quite easy. Determine how much it costs to make the item, how much it costs to market that item, and then mark it up by 15 – 30% or more. Simple, right? Well, pricing diamonds isn’t quite that simple. There are many factors that are considered when diamonds are priced.

Diamond prices are determined first by adding the cost of the rough diamond, the cost of cutting the diamond, and all other costs necessary to turn the rough diamond into a marketable diamond. Depending on the importance of the diamond, an independent company may be called in to certify the grade of the diamond based on colour, cut, clarity, and weight.

Before reaching the retailer, the diamond must travel from the mine, to the cutter and polisher, to the independent grading company, and then to the primary market. Once it has reached the primary market, it will be purchased by diamond dealers and wholesalers, and from there it will be sold to retailers. The diamond becomes more expensive each time it changes hands, until it finally reaches a retailer, where the price is raised a bit more.

The value of a diamond is based on what the diamond will sell for in the market place through a retailer. As you can see, the earlier you can purchase a diamond in the process, the lower the cost of the diamond will be – but not the value.

If you own a diamond, and you have no idea how much it is worth, you can have it appraised, but the appraisal may not be accurate. You will be better off obtaining a certificate through GIA – Gemological Institute of America. With the information on this certificate, you can use a diamond price guide to accurately determine what your diamond is worth.

There are also many diamond price calculators available on the Internet, and many diamond dealers use these as well. You will realize that before you can accurately price a diamond, without a Diamond Grade Report, you need to know quite a bit about diamonds, such as different cuts, clarity, color, and weight – and how each of those aspects adds to the value of a diamond, or decreases the value of the diamond as the case may be.

Again, you will be better off if you get a Diamond Grading Report on the diamond, and use that information to look up the price in one of the guides that the diamond cutting industry uses. This will give you the most accurate value of the diamond in your possession, or of the diamond you are considering to purchase.

How To Care For Your Diamonds

Caring for a diamond takes more than occasional cleanings. Diamonds are forever, but they can be damaged if you are not careful. By learning how to properly care for your diamond, you will ensure that your diamond is indeed forever.

First, you should take your diamond jewellery to a jeweller once a year. Have him check the mountings and prongs that hold your diamond in place. Have him make any needed repairs. This will prevent your diamond from falling out of its setting and becoming lost.

Diamond jewellery that is not being worn, or diamonds that are loose should be stored in a fabric lined jewel case, or in a jewellery box where it can be kept separate from other jewellery. Each piece should have its own compartment. This will keep diamonds from becoming scratched, and it will also keep your diamonds from scratching other jewellery as well.

Remove your diamond jewellery when doing physical work. Diamonds can be chipped and scratched easily. Also avoid allowing your diamond to come into contact with bleach or other household cleansers – this can damage or change the color of the settings and mountings, and it may even irreversibly change the color of the diamond!

How To Clean Your Diamonds

Through our day to day movements our diamonds get smudged and soiled. Even when we are not wearing them, they collect dust. Lotions, soaps, our natural skin oils, can cause film and grime on diamonds and inhibit their brilliance.

Want to keep that Brilliance and Shine? Diamonds require cleaning so that maximum amounts of light can refract fiery brilliance. Remember that all it takes is a few minutes and a little care to keep that diamond as fiery as the day you first saw it.

You can use an small soft brush such as an eyebrow or lipstick brush and soap and water to clean your jewellery. Simply make a bowl of warm sudsy water with a mild detergent and place your pieces in the mixture. Then brush the diamonds with the soft bristles of the brush while they are in the suds. You will need to make certain that you rinse them clear of the suds after cleaning them. You can use a small kitchen strainer such as a tea strainer to contain them while rinsing under warm water. Use a lint free cloth, or a jewellery polish cloth to pat them dry.

If your diamonds are in need of a stronger cleansing, you may want to soak them for 30 minutes in a solution of half water and half ammonia. Once they have soaked for 30 minutes, remove them and gently brush the mountings with a small brush. Then replace the pieces to the solution and swish them around in the mixture before removing them to rinse and pat dry.

If you find yourself too busy to be mixing soaps and ammonias, many department stores sell liquid jewellery cleaners. Most are kits with everything you need included. You need to read the labels to determine the one that is right for your diamonds and other jewellery. Read the complete directions and follow all the precautions.

And if you find yourself more the “high-tech type”, even in your diamond cleaning routine, there are multiple ultrasonic cleansers on the market. These machines use high-frequency to create a cleaning motion. All machines are not the same, so please read the instructions before using.

Only you can choose the cleaning method right for you. Whichever the way, it is essential to keep your jewellery clean to keep it brilliant and sparkling. Between cleaning, try not to touch your clean diamonds with your fingers and handle your jewellery by its edges. This will help maintain its shine and brilliance for longer periods.

Quick Guide to Selecting Diamonds

Diamonds are graded for certification by laboratories using grading criteria. Four of these criteria are critical to understand when making a diamond purchase or investment. Known as the “Four C’s”, these criteria are: color, cut, clarity and carat.

Colour
Color is the result of the composition of a diamond and it does not change. When a jeweler is describing the color of a diamond they are referring to the presence or absence of color in white diamonds. Because a diamond with no color allows maximum light to pass through, colorless diamonds are preferred for their sparkle.

Read more on Diamond Colour.

Cut
Cut refers to a diamonds reflective quality. Most diamonds are cut with 58 facets. The brilliance of diamonds is heavily dependent on the cut. The different angles and the finish of a diamond determine its ability to reflect light and cause its brilliance and fire.

Remember that the cut of a diamond can have an impact on its durability as well as its beauty. Some cutting faults can make a diamond prone to breakage. A diamond that is cut too thin can also cause light to leak out of the back and the diamond will lose some of the sparkle and appear not to shine. So, as you can see the cut is probably the most important of the Four C’s.

Read more on Diamond Cut.

Clarity
During the formation process, inner flaws, or inclusions occur in most diamonds. The number and size of these inclusions determine what is referred to as the clarity of a diamond. Diamonds that are clear create more brilliance and therefore are rarer and highly priced. To be considered “flawless”, a diamond must have no surface or internal imperfections visible upon being viewed by a skilled diamond grader using 10 power magnifications.

Read more on Diamond Clarity.

Carat
Carat is the unit of weight by which diamonds are measured. One carat is equal to 200 milligrams. A carat is divided into 100 segments called points.

Read more on the carat weight.

When you go to the store to make that all important diamond purchase, do not be shy! Ask questions, get the answers needed to make an informed purchase. Shopping for certified diamonds enables you to make an informed selection. Knowing the “four C’s” allows you to comparison shop and purchase the best diamond at a fair price. But, before making a purchase, shop around and decide what shapes and styles really appeal to you. Enjoy your diamond for years to come!

Synthetic Diamonds

The first synthetic diamonds were produced by General Electric in 1954. A synthetic diamond is basically a rock that has the durability, refractive index and hardness of a natural diamond – but it is made by man. A synthetic diamond should not be confused with stimulant diamonds, such as glass, cubic zirconia, or moissanite.

Although the technology for synthetic diamonds came into play in 1954, no synthetic diamonds were ever seen on the market until the 1990’s. This was due to the fact that it took many years for General Electric to produce a synthetic diamond that could compare with the quality of a natural diamond – and when they figured out how to do it, they found that it cost more to produce a synthetic diamond than it did to mine and cut natural diamonds.

Finally, a small company by the name of Gemesis Corporation figured out a way to produce synthetic diamonds that were of the same quality as natural diamonds, at a cheaper price. Today, Gemesis produces synthetic white diamonds, and colored diamonds as well. These diamonds sell for about 1/3 of the cost of a natural diamond, but there is a shortage of them, and they are hard to find. In fact, it seems that synthetic diamonds are rarer than natural diamonds!

Diamond Colour

Most diamonds are in the shades of pale yellow to brown due to impurities and defects within the diamonds' crystal lattice. Hue and intensity are the main properties of diamond colour that will determine its value. These colors vary from red, green, purple, violet, orange, blue and pink – and most shades between. Fancy color shades vary from faint to intense. Natural blue and red diamonds are worth significantly more as they are very rare. Extremely pure white diamonds are also of very high value due to rarity.

White Diamonds
White diamonds are the most common type of diamond. These diamonds range from colourless to pale yellow and are graded on a D to Z scale from high to low value, D being colourless and Z being light yellow. The purer a diamond is, the whiter it appears to be under white light.

A 100% pure diamond is completely colourless, feels cold to the touch (of course, provided that it has not been under the spotlight in the display case for hours), and is simply captivating - almost like a kind of solitary emptiness that has manifested itself through Mother Nature's strive for perfection.

Treated and Synthetic Diamonds
Fancy colored diamonds are all the rage these days. Gemologists have developed new ways to create versions that are affordable for the average person - by treating less desirable diamonds. These less desirable diamonds are treated with irradiation followed by intense heat. This turns brown and yellowish diamonds into beautifully colored diamonds that you can afford. This treatment produces stunning greens, blues, yellows, reds, purples and other colors. The colors are considered permanent, but there is a possibility they could change during repairs if a high heat is used.

Treatments like irradiation make it possible for more people to own these vividly colored diamonds. Most natural colored diamonds are rare and also extremely expensive. When shopping for colored diamonds, you need to assume that any affordable fancy color diamond has been treated. Ask about the stone's origin and request to view a lab certificate to verify authenticity.

Synthetic colored diamonds are another option if owning a colored diamond is something you desire but cannot quite afford. They are real diamonds, but they are created in a lab.

Natural Coloured Diamonds
Natural fancy color diamonds get their coloring from different trace elements present in the stones, such as nitrogen, which produces a yellow diamond. Diamonds can be colored by exposure to radiation during its creation. An example of a diamond affected by radiation is a green diamond.

Another way that a natural colored diamond gets color is by its inclusions. Regarded as flaws and undesirable in a colorless diamond, inclusions give unique tones and brilliant flashes of color in a fancy color diamond. Remember that natural colored diamonds are very expensive, any colored diamond labeled to be sold as natural should be accompanied by a certificate from a respected grading lab.

Famous Diamonds
The most famous diamonds in the world are color diamonds. The Tiffany Diamond, which is yellow and the Hope Diamond which is blue are colored diamonds. Color diamonds have an amazing financial track record. The value has never decreased on wholesale level in more than 30 years. Blue and pink diamonds have doubled every 5 years of a strong economy. In the 1970’s you could have bought a very high quality blue diamond for about 50K and today the very same stone would be worth between 2 and 3 million.