- Square Emerald
Any diamond submitted to G.I.A. is ensured to have reliable and consistent grading. Anywhere from 3-6 separate gemologists will individually grade each and every diamond for an accurate final grade. G.I.A. grading reports are considered a hallmark of integrity throughout the diamond world, issuing two separate types of reports. One of the more common reports is the full-issued G.I.A. document, which contains the full description of the diamond as well as a plotting of the grade-setting clarity characteristics of that stone. The G.I.A. Dossier will have the full individual details of each diamond graded, but the plotting is not included. Both reports reference a unique serial number that has been laser-inscribed on the diamond’s girdle, allowing for verification of the stone under 10x magnification. With “Gemscribe”, your diamond cannot possibly be mistaken for any other. The serial number on your diamond will always match the serial number on your certificate. Two other independent institutions also certify Jared® diamonds: I.G.I (International Gemological Institute) and G.S.I. (Gemological Science International). Both follow G.I.A. standards.
The International Gemological Institute (I.G.I.) is the largest independent grading and appraisal organization in the world. Over 450 scientific technicians and gemologists examine hundreds of thousands of gemstones and jewelry items every year. I.G.I. has centers in Antwerp, New York, Bangkok, Mumbai, Tokyo, Dubai, Los Angeles and Toronto. It offers diamond and colored stone certificates, educational courses to the trade, and diamond laser inscription. The information contained in every I.G.I. Diamond Grading Report is also stored in the organization’s computer database, ensuring that you may, at any time, request and receive an update of your report if the need arises.
GSI is an independent gemological laboratory that provides professional gemstone identification, grading and appraisal services exclusively to the fine jewelry industry. It is headquartered in the heart of New York City’s Diamond District and has offices abroad in international diamond centers. The foundation of GSI is built on innovative thinking, new technology, traditional values, and shared industry research. The result is a gem lab equipped to meet the evolving needs of the industry. GSI’s gemologists have vast expertise in diamond grading, both theoretical and practical. They are up-to-date about any new developments in the gemological and jewelry fields. Each diamond is examined by a minimum of four gemologists: two gemologists for color grade and at least two gemologists for clarity grade.
A.G.S. is known throughout the diamond industry as grading top-notch Ideal-Cut round diamonds. Their high standards surpass those of any other grading laboratory when considering color and clarity as well as cut. If a diamond has been graded by A.G.S. Lab, it has met the standards of what is considered the perfect proportions, polish, and symmetry; and has been given a grade of “ideal” or a “000” rating. A.G.S. Ideal-Cut round diamonds are highly sought after in today’s market.
GemEx Systems is an independent laboratory that provides certification on the light performance of a diamond, stating the measurement of fire, sparkle and brilliance for your Leo Diamond. This certification is known as the"Return of Light." The GemEx BrillianceScope® Analyzer, which uses patented spectrophotometer technology, measures a diamond’s white light (brilliance), color light (fire) and scintillation (sparkle). It then rates each of these three measures compared to other diamonds of the same shape. The scale for each shape was set by measuring thousands of diamonds to determine the highest and lowest amount of white light, color light and scintillation possible for each shape. The Light Performance Report includes the three bar graphs and also shows images of the diamond under five different light views used for measurement of Light Performance. It is important to know that superior performance in any of the three light categories yields a beautiful diamond.
Polish is rated excellent, very good, good, fair or poor, depending on the condition of the diamond’s surface.
Like polish, symmetry is also evaluated on a scale ranging from excellent to poor.
A diamond’s fluorescence can range from none to very strong, and may be a soft blue, green, pink, yellow, orange or red color.
Bigger diamonds cost more, of course. But certain carat weight thresholds can cause a big jump in cost — for example, a 1-carat diamond might cost much more than a 0.9-carat diamond, despite the nearly indiscernible difference in size.
As diamonds get bigger, a fraction of a difference in carat weight is more noticeable.
Each facet and angle is cut so that light travels in and out of the diamond to create sparkle.
Well-cut diamonds are quite beautiful, but tend to be more expensive.
Usually jewelers prioritize cut over the other "Cs" of a diamond.
Most diamonds are slightly yellow in color, and the more yellow the diamond is, the lower color grade it receives.
The yellow tint is not really discernible to the naked eye until a diamond is in the J-K range of the color chart.
The clarity grading scale classifies diamonds based on how perfect they are, on a scale ranging from IF/F (Internally flawless or flawless) to I3 (very included).
Slightly or very slightly included diamonds can still be beautiful, but you have to judge each individual diamond for yourself.
Visit our customer care section for more details »
Diamond Ring Setting 3/8 ct tw Round-cut 14K White Gold
Diamond and Gemstone Guarantee
We want you to be completely happy with your diamond and color gemstone jewelry, from the day you make your purchase, through all the years to come. That's why we guarantee our diamond and color gemstone jewelry for a lifetime, as long as 6-month inspections have been performed and documented by an authorized representative. Learn more
Extended Service Plan Available
Once you've chosen the jewelry that you absolutely love, you'll want to protect it for a lifetime. That's where our Extended Service Plan (ESP) comes in. Let's say you need to have your ring sized. Or you need to have the prongs tightened (you don't want to lose your stone!). When you purchase our Extended Service Plan, we will make any covered repairs needed, up to the amount of the purchase price, at no additional charge. Learn more
Generally, most treated gemstone jewelry can be cleaned with mild liquid detergent mixed with warm water. Learn more about Color Stone Care.
Every Kay Jewelers store offers complimentary cleaning and inspection for your fine jewelry. But there are a few care and cleaning suggestions that you can use to make certain that your jewelry keeps its sparkle and shine. Over time, dirt, makeup and other substances can build up on the surface of your jewelry, taking away from its natural beauty. Generally, most diamond jewelry can be cleaned with mild liquid detergent mixed with warm water.
Engraving is available for most fine jewelry purchases at any Kay Jewelers location. On Kay.com, engraving is available only for personalized items, where indicated.
When it comes to caring for your metal, it's important to remember that every metal is different. While little maintenance is needed for durable metals such as tungsten, other metals require some attention. For instance, platinum is a strong metal but is susceptible to scratches. Gold is another metal that needs gentle care. Soap film easily builds on the surface of gold, so it's best to remove your gold jewelry before showering or using household cleaners or chemicals. Learn more in our Metals Guide .
The millimeter is our standard unit of measurement for jewelry dimensions. By using millimeters, we can provide you with the most accurate height, width and length for your jewelry. To give you a better idea of your jewelry's dimensions, 25 mm is approximately 1 inch. See below for other approximate conversions.
3 mm is approximately 1 / 8 inch
6 mm is approximately 1 / 4 inch
13 mm is approximately 1 / 2 inch
19 mm is approximately 3 / 4 inch
25 mm is approximately 1 inch
50 mm is approximately 2 inches
75 mm is approximately 3 inches
White gold is pure gold that is mixed with alloys to give it a white color. Platinum is pure metal that is naturally white and much more durable and stronger than white gold.
A carat is a unit of measure for diamond weight and is evaluated on a point system. One carat is equivalent to 100 points.
A karat is the standard measurement of gold, which is divided into 24 parts.Pure gold is 24 karats, meaning 24 out of 24 parts are gold.
Metals such as titanium, stainless steel and tungsten are considered non-traditional jewelry metals. These metals are growing in popularity and offer variety when shopping for jewelry. Learn more in our Metals Guide .
All of our rings are sized to what has been determined is an average finger size. When you purchase a ring on Kay.com, you will be shown the size (or sizes) in which the ring is available. If your finger is a different size, we can adjust the ring. Click here for Ring Size Help .
A diamond's value is determined by its carat weight, color, cut and clarity. For further information about diamonds please refer to the 4Cs Diamond Guide on our website.
The 4Cs of diamonds are the characteristics that determine the value of a diamond. They are: Cut, Clarity, Color, Carat. To learn more visit our Diamond Guide .
When getting dressed, cultured pearls should be the last item put on and the first item taken off. Makeup, hairspray, perfume, and other chemicals are very harmful to cultured pearls. They can be gently washed in a mild soap or wiped with a damp cloth to remove daily build up and dirt. They should also be separated from other jewelry to avoid nicks and scratches.
Expert Jewelry Advice
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