Certified Yellow sapphire gems Untreated unheated natural yellow color certificate sapphires selected in the mining and cutting centers of Sri Lanka by Bill Kent, Graduate Gemologist Appraiser Importer. www.sapphires.ca |
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Certified Untreated Yellow Sapphire Gems |
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No Heat Treatment: Every sapphire on www.sapphires.ca is certified free of heat-treatment. And I guarantee every one to be free of fracture-filling and diffusion-treatment. . |
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Perfect cutting and proportions, finest clarity and finest color. This beautiful gem radiates golden light! Clarity: Flawless. Color: Intense Yellow
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Beautiful Gem! This wonderful yellow sapphire's great proportions and great clarity showcase its finest, rich golden color. Clarity: Near Flawless / Lightly Included 1 (NFL / LI1) Color: Intense Yellow
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Orange Tint Makes This One Unusual! Fascinating gem with a hint of orange color. This sapphire is brilliant and full of life! Clarity: LI2. Color: Vivid Orange/Yellow
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Certificate #CA92898201C European Gemological Laboratory/Canada |
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Simple and Pure Sapphire! Untreated emerald-cut sapphires are rarely seen! This gem is flawless and pure, with just the very slightest warm tint. Clarity: Flawless. Color: Very, very light Yellow
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Sparkling Brilliant Sapphire! Perfect gem for a stunning ring! Set it with diamonds or let it stand alone, this sapphire sparkles! Clarity: Flawless. Color: Vivid Yellow.
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Finest Golden Yellow! Intense golden light radiates from this brilliant, shining gem of the Sun! Clarity: LI2. Color: Intense Yellow
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Fascinating Shape! Unusual sapphire! Finest clarity, fine color and brilliant cutting! Does this shape appeal to your taste for the unusual? You'll love this gem! Clarity: Near Flawless / Lightly Included 1 (NFL / LI1) Certificate #CA92896109C
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Crystal Clear Gem! Beautiful color brought to life with excellent proportions! This golden gem sparkles with brilliance and life. Wear this gem and have sunshine every day! Clarity: Flawless. Certificate #CA92896116C
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Deep, Rich Sapphire! Pear-shape perfect for your pendant! Exceptionally deep color and excellent proportions make a sun-drop of scintillating golden light. Clarity: MI1. Certificate #CA92896119C
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Finest Yellow Sapphire This is a brilliant, superior quality gem because it has excellent proportions, finest clarity and bright, rich color! You won't be disappointed--this gem is full of light and color. Clarity: Flawless. Certificate #CA92896110C
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Brilliant Yellow Sapphire Bright, medium-light cushion shape gem. Filled with sparkle and brilliance! Would you like a pastel-color yellow sapphire, dancing with scintillating, sparkling light? This gem is perfect for you! Clarity: MI2 Certificate #CA92897201C
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Pure Golden Sapphire Large, round sapphires are hard to find because the uncut crystals (known as "rough" sapphire) rarely yield round shapes after cutting. This sapphire is a beautiful gem, ideal for a stunning solitaire. Or design your own style--this round shape goes with any design. Its depth of pure color and fine clarity grade give it unsurpassed impact! You'll love how it looks on your hand! Clarity: Near Flawless / Lightly Included 1 (NFL / LI1) The lower portion of this gem, the "pavilion", is deeper than average. This variation in proportion is often .found with sapphire because the shape of the "rough" crystal, as it comes from the mine, yields a Certificate #CA92894303C
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Lightest Tone Yellow Sapphire! This sapphire is light yellow; just a slight hint of color to warm it up! Do you like pastel colors that aren't intense or strong? This might be the perfect gem for you! Color: Light Yellow. Clarity: Flawless. The lower portion of this gem, the "pavilion", is deeper than average. This variation in proportion is often found with sapphire because the shape of the "rough" crystal, as it comes from the mine, yields a heavier gem when cut to "deep" proportions. When the pavilion is deep, the gem has a smaller "face-up" size, relative to its carat weight, compared to a stone with better proportions. Certificate #CA92894309C
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Unique Shape Yellow Sapphire! Superbly cut in an Interesting shape. Ideal for the unique and attractive design you'd love to have! Finest clarity and rich color make this a beautiful gem--you'll love wearing this one-of-a-kind gemstone. You'll enjoy it always! Clarity: Flawless. Certificate #CA92897222C
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Pastel Yellow Sapphire Do you like pastel colors? This light and bright gem might be perfect for you! Imagine the pleasure of wearing your favorite shade of light yellow, a warm ray of soft sunlight shining on your hand. Clarity: Flawless. Certificate #CA92891508C
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Just a Hint of Golden Light Brilliance with just a slight golden hue! Do you like understated, subtle colors--just the slightest hint of gold? You'll love wearing this very light yellow gem! Clarity: Near Flawless / Lightly Included 1 (NFL / LI1) Certificate #CA92891502C
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Great Price For This Color and Size Unheated Yellow Sapphire! Clean and crisp gem, nice face-up size and affordably priced! This sapphire has a "window" in the center. A window is an area of reduced brilliance due to a deviation in the proportions/cutting angles of the pavilion (bottom portion of the stone). The gem-cutter made this variation in order to improve the face-up size and to maximize the finished weight from the rough crystal. Some clients prefer a windowed gem because it can give a much bigger face-up dimension, relative to the carat weight. If you want to maximize the face-up size of your gem, this is your sapphire! Clarity: LI2. Certificate #CA92891509C
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Beautiful, Rich Yellow Sapphire Strong, pure color; unusual shape; brilliant gem! Think of the perfect design you'd love to have. Would you wear it in one-of-a-kind ring, perhaps set with small diamonds? Or in a solitaire setting; just a simple ring to show this gem's golden color and brilliance? You can choose the ideal style for your unique gemstone! Clarity: LI2.
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Brilliance! This gem sparkles with pure cosmic light. Wear it and enjoy the bright pastel light of a golden star! Clarity: Flawless. Certificate #CA92891505C
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Fabulous Gem! Brilliant sparks of golden light flash throughout this gem! Intense golden color, superior clarity and sparkling brilliance will make you happy every time you see it! You'll love this sapphire! Clarity: Near Flawless / Lightly Included 1 (NFL / LI1)
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Stunning Gemstone! Wonderful brilliance and clarity make this a striking, vibrant gem! Clarity: Near Flawless / Lightly Included 1 (NFL / LI1)
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Fine Golden Yellow Sapphire! Attractive gemstone with a "large face" for its weight. The gem-cutter wanted to emphasize the Some clients prefer this style of cutting. It's a great way to get the strong visual impact of the large face of this golden gem! Clarity: LI2.
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Large and Affordable Yellow Sapphire! Very reasonable price for a yellow sapphire of this size! Light-tone color with a slight haziness (it takes a trained eye to see the slight haziness) make this an affordable yellow sapphire. Have you always wanted a large yellow sapphire at an affordable price? Here's your chance! Clarity: Flawless. No inclusions visible to the unaided eye when examined by a trained, experienced grader using an ideal light source.
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Large, Brilliant Yellow Sapphire! This is a rare gem: large, brilliant and very beautiful! This gem commands respect with its quality and size. Enjoy the beautiful presence this gem brings to you! Clarity: MI1.
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Interesting, Unusual Yellow Sapphire! Finest proportions in princess-cut make this an appealing gem! And its color makes it unique, changing from the greenish yellow of new leaves sprouting in early spring time to a warm, light brown when viewed in incandescent lighting. Clarity: MI1.
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Certificate #CO-YS-SpG0047-000280 issued by Gemmological Institute of Colombo |
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Interesting sapphire--subtle, understated, uncommon. If you prefer light pastel colors, you'll love this gem! Slightly visible "fingerprint" inclusions indicating Sri Lankan origin. Clarity: MI3
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Untreated, Unheated Yellow Sapphires not yet photographed: .93 carat round medium-light yellow, clarity: MI1, Good proportions.
.96 carat round brilliant yellow; finest possible clarity and finest proportions
1.10 carat emerald-cut, very light tone yellow, clarity LI1. Attractive sapphire if you like subtle, very understated color: just a slight warm tint. Emerald-cut sapphires are hard to find. Have you been looking for a well-cut, very clean gem in the one carat range? Here it is!
1.13 carat oval; excellent cutting and proportions. Clarity: LI2, vivid yellow sapphire. 1.22 carat oval. Clarity: MI2, medium yellow sapphire. 1.25 carat square cushion-shape, very light yellow sapphire--very brilliant and full of life. Clarity: LI1.
1.38 carat oval, light lemon yellow sapphire, good proportions and great size for the price! $300.
Please email for more information on these stones. |
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How Do We Know These Are Unheated Yellow Sapphires? |
Heat treatment of yellow sapphires modifies their internal structure.
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Yellow Sapphire Clarity Grading: Yellow Sapphire clarity grades are assigned when a trained, experienced gemologist examines the gem "face-up" under controlled lighting without magnification. . Sapphire clarity grades are assigned without magnification. Sapphire clarity grades are determined by an inclusion's visibility, or lack of visibility, to the naked eye.. This is the procedure at the major Gem Labs. . This is in sharp contrast to diamond grading where 10X magnification is required. The top sapphire clarity grade at American Gemological Laboratory is "Free of Inclusion" . and the top sapphire clarity grade at Asian Institute of Gemological Sciences is "Flawless". . According to the Gemological Institute of America's Revised Colored Stone Grading Lab Manual, . the top clarity grade for sapphire is "Eye clean". . These grades are assigned when an experienced, fully-trained gem-grader is unable to see any inclusions under ideal lighting conditions and without magnification. . When examined under magnification, almost all sapphires show some natural inclusions, regardless. of whether these inclusions are visible to the naked eye. So, a sapphire that is honestly graded . "Flawless" or "Free of Inclusion" or "Eye-clean" almost certainly contains inclusions at some level of. magnification. (As do most Flawless diamonds!). 10X is the basis for diamond clarity grading. Naked-eye is the basis for sapphire clarity grading. Diamonds and sapphires almost always show natural inclusions if the magnification is high enough.
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| FL | NFL/LI1 | LI2 | MI1 MI2 | HI1 HI2 | EI1 EI2 EI3 |
| Flawless | Near Flawless / Lightly Included 1 |
Lightly Included 2 |
Moderately Included |
Highly Included |
Extremely Included |
Flawless Sapphires show no inclusions to the unaided eye when examined by a trained, experienced grader using an ideal light source. . Lightly Included 2 (LI2) is similar to (NFL / LI1) but with one or two more inclusions, of the same minute size, barely visible to the unaided eye.of a trained, experienced grader.. Moderately Included 2 (MI2) inclusions have a slight effect on appearance but do not affect brilliance. These inclusions are often not visible to the casual observer. .
Highly Included 1 (HI1) Inclusions are obvious and have a slight effect on appearance and brilliance. Highly Included 2 (HI2) Inclusions are obvious and have a significant effect on appearance and brilliance..
Extremely Included 1 (EI1) Inclusions are prominent with significant effect on appearance, brilliance and transparency.. Extremely Included 2 (EI2) Inclusions are numerous and prominent throughout gem with severe effect on appearance, brilliance, transparency and durability..
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Proportion Grading Of Yellow Sapphires |
Good proportions in gems are found when the crown angles and pavilion angles. Proportions are more important in diamond grading.than in colored stone grading. Excellent proportions are essential to the beauty of a diamond. The entire visual impact of a diamond is created.by light rays reflected from its surface and refracted from within it.. In all colored stones (all gems other than diamonds),.color is a more important contributor.. The cutter of yellow sapphires saves as much weight from the rough . |
Canadian and American Clients: Your gem purchases are free of taxes, customs fees and shipping charges. . You pay nothing extra.
Plus, you receive an Export Discount of 7%.
IMPORTANT NOTICE: The Canadian Dollar has gained strength and now I can purchase gems in Asia at much better prices. So I'm passing this saving on to you.
Effective immediately, all items are reduced by 10% from list price. Please subtract 10% from prices shown on-site. All Canadian, American and International Clients immediately qualify for this benefit.
The Export Discount of 7% for American and International clients is calculated after subtracting the 10% price reduction.
Please contact me at billkent@islandnet.com with any questions you may have.
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Returns |
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Every sapphire on this site comes with a 30 day, full-refund return policy. I ask only that you return the gem in its original condition and that it hasn't been set into a piece of jewelry prior to its return. |
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My
Profile
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Bill Kent G.G. |
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| Member |
AGTA Members are proud to uphold the highest ethical standards in their business practices, agreeing to the Association's strict Code of Ethics and full disclosure of gemstone enhancements. |
Member |
Strict standards of gem valuation are required of members of the National Association of Jewelry Appraisers. I've applied these strict standards to all of the items on this site. |
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Training |
Graduate Gemologist (G.G.) with Appraisal Certificate Professional education and recognition from the leading Gemological Institute guides my selection process and ensures the untreated status of your sapphire. |
Advanced Training |
... Gem Grading and Appraisal Certificate Advanced, specialized, in-depth education in the separation of treated and untreated sapphires further protects your investment in your untreated sapphire. |
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William
Kent Corporation In
Canada call toll free: 1-800-656-5368 .www.sapphires.ca . your best source for untreated sapphires . |
| unheated pink sapphires | unheated white sapphires |
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