READ THIS !
IT WILL SAVE YOU MONEY AND GRIEF !
Ever since the early 1980's diamond buyers have been relying on lab reports. These are professional non- biased analysis issued by a credible resource.There are many more good honest labs that give out reliable honest reports or "certs". For this guide and simplicity we will narrow it down to the top 3 (most used and promoted) laboratories known as the "BIG THREE":
1- GIA Gemological Institute of America. . They are the grand daddy of them all. They have been around the longest and are most prized in the expensive diamond and jewelry business. It would be unheard of not to have a diamond certified if it were a high priced or rare diamond or color stone. GIA was the first to have a school to professionally train gemologists. 1 carat and higher Internally flawless to SI2 and D to K color are the domain of the GIA.
2 EGL, European Gemological Laboratory. Located world wide. like IGI below.
3- IGI -International Gemological Institute. located world wide an located in Europe , Asia, Africa, India and USA, Canada
Most diamonds of importance are graded by these 3 labs than anywhere else. They command the highest market value by maintaining high standards and keeping it honest. Conflicts of interest are avoided. It is taboo for a lab to "sell diamonds " Perfect without faults and mistakes does not exist anywhere. Their grading reports (not certificates) as the have legal disclaimers . while not a science will usually be within a grade. Fraudulent reports are rare if ever discovered in the big 3 labs. They police themselves quite well and avoid the influence that many sellers exert on a grading lab or person. Most smaller labs are quite competent and honest. They deliver a quality analysis and are comparable to the big 3. Unfortunately a few small lab owners are told by a seller ,"If you want the business, give me the grade !" Not very good for the buyer. This is very good and profitable for the seller and a living for the provider.That is as good as it gets.
All Gem lab grading is subjective. On any given day a diamond can grade out differently between the major gem labs. They can even differ in the same gem lab if resubmitted again to the original lab.
If you buy a diamond that is certified ask questions.
Is the lab connected to the seller ? Independence is desireable but not mandatory. Don't allow a seller to blame the grade of the grader alone. The grader is charging a small fee. The seller is getting a majority iof the money. Make the seller responsible in writing.
If the grade on the report doesn't substantially make grade elsewhere , what is the penalty in money for requesting a refund ?
What is an acceptable variance in grading that is acceptable by the seller ? If it is possible 2 grades then you are at risk of 2 grades for color and 2 grades for clarity. Don't bet that the grades will ever be higher than quoted. Lower is more likely. Are you better off buy a diamond analysed by the BIG THREE and opt for a diamond that is 2 grades less in quality.
Buy clarity enhanced, irradiated or lasered diamonds provided the treatment is explained and fully disclosed. They are good for the money. Ask the seller what price over so called wholesale is his retail price based. Don't get confused. Natural diamonds can be treated or irradiated. They can be clarity enhanced. If you buy one of these be aware that the look is only a little different. The PRICE is way different. Do not confuse them . THEY ARE NOT THE SAME !
I'd rather buy a good deal than a bad deal.
Make sure the treatment is fully disclosed and explained. Many blue, green, and yellow diamonds on eBay are sold as natural when in truth the have been treated with radiation or HPHT processing. Don't believe the story. Blue diamonds of rich intesity are worth Thousand of dollars. Why would anybody sell you a $10,000 diamond for $500.
Remember the big lies. The Check is in the mail. I love you, The diamond is Natural untreated color that I bought from a collector. If you are offered this then you need a GIA report that can be verified.
A diamond can be lasered to make a pathway for acid to leach out the black pique' natuarally found in most diamonds. It must be disclosed to the buyer before the sale is completed. This process is accepted in the trade and has been around from the early 1970's.
Clarity enhanced diamonds are filled with a substance that makes the feathers or breaks seem to disappear. The process is not permanent and can be altered if the diamond is heated by a jeweler torch during sizing or repair.
Get a reasonable 7 day return privilege if you are not satisfied with your purchase. Negative feedback should never be an option by the seller or the buyer. If you buy something and you have a right to check it and return it without a huge penalty or a negative feedback.
Now comes the EBAY certified diamond. Presented with the diamond jewelry term (loosely) They are reports of varying quality and some bias in favor of the seller. These diamonds are usually clarity enhanced. Since the big 3 don't grade enhanced many sellers are free to sell these diamonds with optimistic reports. It is good business to offer a 1.50 carat "certified" diamond at a rock bottom unbelievable price.
Is the diamond worth the price paid ? Usually it is. It is just a little lower in quality than if certified by the BIG 3. Since GIA , EGL or IGI they don't grade these type of enhanced diamonds "certification" cards or documents or reports are not kept in check. Who can you dispute this grade with if not the BIG 3 ? This is the sellers perfect out. You can't prove him wrong , so he is right !
In many cases this is what happens to a buyer on eBay:
1-You buy them at a ridiculously low price. How good is this ? The whole world will pay more than you because the seller is generous , stupid or willing to sell his diamond for less than it is 'WORTH"
2-They are cheaper and look great. Enhancement is always discussed in the auction but not always understood. A breast implant is a good comparable treatment. If another grader disagrees it THE SELLER says the appraiser is wrong or has a different opinion or worse yet that he wants to make a sale by destroying the sale of the seller. I think enhanced diamonds are wonderful and they should be in the market place. They look much better than if they weren't treated. Not everybody can afford gem quality diamonds.
3- If you complain you get your money back usually less the shipping.
4-If the seller gets a negative feedback from you You give the seller a negative. Who wants a negative ? Most of the negatives are a wash and the buyer is grateful to get all or most of his money back and not to get a feedback that is negative. Look for feedback reports with lots of mutually retracted feedback. This is why sellers retract negative feedback. Once he gets the refund or most of the refund who wants a negative feedback anyway ?
Certificates on diamonds have been available for more than 30 years. On Ebay it's big business. Most diamonds sold on Ebay are sold with reports from a variety of gemologists and labs. An informed consumer makes for a healthy trading environment. You wouldn't buy gold if it werent assayed. Don't buy diamonds without a credible lab report. ASK QUESTIONS before you spend your money.
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