http://www.theparadeofbrides.com/ring-gia/
Ring Gia
GIA certified diamonds set the standard in the gemological industry. While they are not necessarily more valuable than other diamonds they have been thoroughly authenticated versus non-certified dimaonds that have unknown backgrounds. The Gemologcial Institute of America is bowed down to by all others in the diamond industry.
The GIA is a non-profit research and educational institution which has a guiding mission of upholding integrity in the diamond industry. All GIA certified diamonds come with a diamond grading report that tells you more than you probably ever want to even know about the 4 Cs of that little slice of heaven.
There are some additional advantages to purchasing GIA certified diamonds. When shopping around and doing price comparisons, you can compare the characteristics of GIA certified diamonds to the retailer’s pricing. Also, if your future wife convinces you to upgrade the ring in the future, it will be easier to find stones with comparable characteristics. God forbid the ring is lost or stolen, it may be helpful in its recovery or for insurance purposes, to have the GIA certificate which indicates the diamond’s exact properties.
Diamond Characteristics of GIA certified diamonds are documented in the GIA Diamond Grading Report for diamonds over 1 carat in size and in the Diamond Dossier Report for those under 1 carat. They Diamond Grading Report indicates some of the following:
The diamond’s dimensions in millimeters. The measurements for round diamonds help you determine symmetry. For fancy shapes like the marquise or pear shapes, the overall length-to-width ratio is important because certain proportions are more visually appealing.
The weight of diamond in carats. Many people think of carat weight as the size of a diamond. However, if a diamond is cut deep and narrow, it will look much smaller than another diamond of the same weight that is cut shallow and wide
A grading which evaluates the absence of color. Colorless is the most desired status, with other grades exhibiting increasing degrees of color. A few, very rare diamonds exhibit other “fancy” colors, such as pink, green, blue, intense yellow, etc.
Clarity grade. Diamond clarity is the measure of a diamond’s flaws (inclusions). Every diamond has some inclusions, even a diamond with a flawless clarity grade
A grade of cut. This actually refers to both the overall shape and how well the shape is cut
Grades that represent a diamond’s surface and facet placement. This is a good indicator of the care taken to make the diamond as beautiful as possible.
Color when diamond is viewed under UV light: One technique that gemologists use to help identify and separate diamonds from the diamond look-alikes is by putting the gem under a UV lamp. If it fluoresces (glows) blue, it is almost certainly a diamond.
Overall smoothness of the diamond’s surface. A diamond can be polished to have the most perfect, reflective surfaces. This is one reason why diamonds are known for their brilliance. Polish grades range from Ideal to Poor
The shape, alignment and placement of the diamond’s facets in relation to one another as well as the evenness of the outline. Poor facet alignment will allow light to leak out before it reflects back resulting in less brilliance.
A map of the inclusions as viewed under a microscope. If a diamond has a clarity grade of VS1 or better, you will not see any flaws with your naked eye. If the clarity grade is VS2 or less, examine the plot to see the placement of the major flaws.
The GIA certificate that is issued has microprint lines, holograms, and security screens to make counterfeits more readily identified. The only other certification that can hold a candle to the GIA is the American Gem Society Laboratories. The AGSL is highly respected and also issues an objective, in-depth report with each diamond that is inspected in their lab.
The author recently got married and wears a beatiful ascher cut engagement ring. She and her husband put together the website: http://www.ultimate-engagement-ring-guide.com to help you find the perfect engagement ring.
For an engagement ring, can you tell by naked eye between GIA excellent cut & very good cut?
I know GIA is the best lab to grade diamonds, but the cost between an Excellent Cut and a Very Good cut is at least a few thousands.
If we use the naked eye, and we are not jewelers, can we tell the difference the way a stone sparkles from the Excellent Cut and the Very Good Cut? Or they are almost the same and can only be distingushed when a jeweler looks at it?
According to one diamond search engine site, you can’t tell the difference in their sparkle. It says, “Grading of the diamond cut describes the quality of its proportions, faceting, and polish. A “Very Good” cut graded diamond reflects nearly all the light coming into it. The brilliance and fire of a Very Good cut diamond is not discernable from an Ideal or Excellent cut diamond.”
I was surprised that you said in your question, “the cost between an Excellent Cut and a Very Good cut is at least a few thousands.” Generally speaking, of the 4Cs, cut grade has the least impact on a diamond’s overall price. I found two articles about cut grades’ influence on prices (I’ll post the links in the reference section below, because they are long links). The article on the Groom Game site gives a specific example of a 1-carat diamond (1-carat, round, H, VS2) priced at three retailers, for four cut grade categories (ideal, very good, good, and fair). Even if this isn’t similar to your particular diamond, you might find the information from the article helpful.
Based on what those two articles say, I want to offer a little advice: price your diamond on one or both of the diamond search engines (http://www.diamondpriceguru.com/ and Price Scope) to make sure you’re getting a fair price on it. In fact, price both the “ideal” and the “very good” cut, because you might find one store has the best price on “ideal” but another has the best price in “very good.” The diamond market is based on many different retailers’ personal pricing programs–you might even find a retailer with an “ideal” priced better than your current “very good” diamond’s price.
I hope you do! Good luck on your diamond shopping and pre-congratulations on the engagement.
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