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
 
 
 
 
 

Certified Untreated Yellow Sapphire Gems

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. .
No exceptions, ever.
.

 

 

Beautiful Gem!

This wonderful yellow sapphire's great proportions and great clarity showcase its finest, rich golden color. You won't be disappointed when you see this gem in real life. .

Clarity: Near Flawless / Lightly Included 1  (NFL / LI1)
Near Flawless / Lightly Included 1 describes a gem that has just the tiniest inclusion, barely visible to the
. unaided eye.of a trained, experienced grader..
Most non-professional observers are unable to see LI1 inclusions.
.

Color: Intense Yellow

Item: #yc124

Size: 7.05 x 6.03 x 3.56 mm
Weight: 1.24 carats Price: $1200.
 
For more information please email:
  billkent@islandhosting.com

 

Orange Tint Makes This One Unusual!

Fascinating gem with a hint of orange color. This sapphire is well-cut, brilliant and full of life!

Clarity: LI2.
Lightly Included 2 describes a gem that has 2 or 3 of the tiniest inclusions, barely visible to the unaided eye of a trained, experienced grader.

Color: Vivid Orange/Yellow

Item: #yc126

Size: 6.75 x 5.79 x 4.06 mm
Weight: 1.26 carats Price: $975.
 
   
For more information please email
  billkent@islandnet.com  

Certificate #CA92898201C
European Gemological Laboratory/Canada
 
 

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.
N
o inclusions visible to the unaided eye when examined by a trained, experienced grader using an ideal light source.

Color: Very, very light Yellow

Item: #yc130ec

Size: 7.09 x 5.06 x 3.52 mm
Weight: 1.30 carats Price: $575.
 
   
For more information please email
  billkent@islandnet.com  

 

Absolutely Stunning Gem !

This Flawless, Vivid Golden Sapphire is cut to the finest proportions and has the finest crysal clarity!

It's filled with pure, golden, radiant light!

This is the best!

Clarity: Flawless.
Flawless Sapphires show no inclusions to the unaided eye when examined by a trained, experienced grader. using an ideal light source.

Item: #yc138cu Size: 6.60--6.30 x 3.81mm
Weight: 1.38 carats Price: $1450.
 
   
For more information please email
  billkent@islandnet.com  

 

Sparkling Brilliant Sapphire!

Perfect gem for a stunning ring! Set it with diamonds or let it stand alone, this sapphire sparkles!

Clarity: Flawless.
N
o inclusions visible to the unaided eye when examined by a trained, experienced grader using an ideal light source.

Color: Vivid Yellow.

Item: #yc141

Size: 7.20 x 5.94 x 4.25 mm
Weight: 1.41 carats Price: $1275.
 
For more information please email:
  billkent@islandhosting.com

 

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)
Near Flawless / Lightly Included 1 describes a gem that has just the tiniest inclusion, barely visible to the
. unaided eye. of a trained, experienced grader..Most non-professional observers are unable to see LI1 inclusions. .

Certificate #CA92896109C
European Gemological Laboratory/Canada

Item: #yc158

Size: 6.99 x 6.95 x 4.36 mm
Weight: 1.58 carats Price: $1450.
 
   
For more information please email
  billkent@islandnet.com  

 

 

Soft and Warm Light Gold!

This gem has fine, rich color with a soft pastel feeling--beautiful color that's slightly understated and not too intense..

Clarity: Near Flawless / Lightly Included 1  (NFL / LI1)
Near Flawless / Lightly Included 1 describes a gem that has just the tiniest inclusion, barely visible to the
. unaided eye of a trained, experienced grader..
Most non-professional observers are unable to see LI1 inclusions.
.

Item: #yc173cu Size: 7.52--6.91 x 4.04 mm
Weight: 1.73 carats Price: $1550.
 
   
For more information please email
  billkent@islandnet.com  

 

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.
N
o inclusions visible to the unaided eye when examined by a trained, experienced grader using an ideal light source.

Certificate #CA92896116C
European Gemological Laboratory/Canada

Item:# yc201 Size: 9.82 x 6.43 x 3.89 mm
Weight: 2.01 carats Price: $2800.
 
For more information please email:
  billkent@islandhosting.com

 

Fine, Brilliant Gem!

Very sweet gemstone--it's brilliant with sparkling clarity--filled with life and light!

Clarity: LI2.
Lightly Included 2 describes a gem that has 2 or 3 of the tiniest inclusions, barely visible to the unaided eye of a trained, experienced grader.
..
LI1/LI2 inclusions are so small that most people cannot see them without magnification, even after intense. scrutiny of the gem
..

Item: #yc209 Size: 7.35-6.63 x 5.23 mm
Weight: 2.09 carats Price: $1800.
 
For more information please email:
  billkent@islandhosting.com

 

Sunshine!

Let this sunny gem illuminate your life!

This gem is ideal for your ring--it's so bright and brilliant it makes a perfect solitaire!

Clarity: (MI1)
Moderately Included 1 inclusions are minor inclusions that don't affect beauty or durability.
..
These inclusions are often not visible to the casual observer.

Item: #yc211 Size: 7.7 x 4.5 mm
Weight: 2.11 carats Price: $1900.
 
For more information please email:
  billkent@islandhosting.com

 

 

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)
Near Flawless / Lightly Included 1 describes a gem that has just the tiniest inclusion, barely visible to the
. unaided eye.of a trained, experienced grader..

Certificate #CA92894303C
European Gemological Laboratory/Canada

Item: #yc218

Size: 6.88-6.95 x 5.71mm
Weight: 2.18 carats Price: $1950.
 
For more information please email:
  billkent@islandhosting.com
=

 

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.
N
o inclusions visible to the unaided eye when examined by a trained, experienced grader using an ideal light source.

Certificate #CA92894309C
European Gemological Laboratory/Canada

Item: #yc239 Size: 7.23 x 7.00 x 5.46 mm
Weight: 2.39 carats Price: $1850.
 
For more information please email:
  billkent@islandhosting.com

 

 

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.
N
o inclusions visible to the unaided eye when examined by a trained, experienced grader using an ideal light source.

Certificate #CA92897222C
European Gemological Laboratory/Canada

Item: #yc281

Size: 10.71 x 6.05 x 4.42 mm
Weight: 2.81 carats Price: $2450.
 
For more information please email:
  billkent@islandhosting.com

 

 

Pastel Yellow Sapphire

Do you like pastel colors? This very light, very bright gem might be perfect for you!

Clarity: Flawless.
N
o inclusions visible to the unaided eye when examined by a trained, experienced grader using an ideal light source.

Certificate #CA92891508C
European Gemological Laboratory/Canada

Item: #yc303ov

Size: 9.12 x 7.44 x 5.47 mm
Weight: 3.03 carats

Price: $1400.

 
For more information please email:
  billkent@islandhosting.com

 

 

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)
Near Flawless / Lightly Included 1 describes a gem that has just the tiniest inclusion, barely visible to the
. unaided eye.of a trained, experienced grader..

Certificate #CA92891502C
European Gemological Laboratory/Canada

Item:# yc308 Size: 9.06 x 6.57 x 5.78 mm
Weight: 3.08 carats Price: $1450.  
 
For more information please email:
  billkent@islandhosting.com

 

 

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.
Lightly Included 2 describes a gem that has 2 or 3 of the tiniest inclusions, barely visible to the unaided eye of a trained, experienced grader.

Certificate #CA92891509C
European Gemological Laboratory/Canada

Item:# yc309 Size: 9.70 x 7.70 x 4.62 mm
Weight: 3.09 carats Price: $2900.
 
For more information please email:
  billkent@islandhosting.com

 

Sapphire Sunshine!

Brilliant, sparkling gem, filled with sunlight! This sapphire is exceptionally bright--it's a joy to see!

Clarity: Flawless.
Flawless Sapphires show no inclusions to the unaided eye when examined by a trained,
experienced grader using an ideal light source.
.

Item: #bc318 Size: 8.53 - 7.38 x 6.11 mm
Weight: 3.18 carats Price: $2950.
 
For more information please email:
  billkent@islandhosting.com

 

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)

Near Flawless / Lightly Included 1 describes a gem that has just the tiniest inclusion, barely visible to the unaided eye of a trained, experience grader.

Item: #yc371 Size: 9.56 - 6.54 x 5.34 mm
Weight: 3.71 carats Price: $5500
 
For more information please email:
  billkent@islandhosting.com

 

Stunning Gemstone!

Wonderful brilliance and clarity make this a striking, vibrant gem!

Clarity: Flawless.
Flawless Sapphires show no inclusions to the unaided eye when examined by a trained,
experienced grader using an ideal light source.
.

Item: #yc390 Size: 9.73 x 7.39 x 6.07 mm
Weight: 3.90 carats Price: $2950
 
For more information please email:
  billkent@islandhosting.com
 

 

 

Large Size For a Great Price!

Attractive yellow sapphire that has a small "window" in the center of the stone. Windows reduce the cost of gemstones, creating an opportunity to own a large gem at a much lower cost. .

Clarity: MI1
Lightly Included 2 describes a gem that has 2 or 3 of the tiniest inclusions, barely visible to the unaided eye of a trained, experienced gem-grader.
.

Item: #yc416 Size: 9.75 x 8.42 x 5.44 mm
Weight: 4.16 carats Price: $2700
 
For more information please email:
  billkent@islandhosting.com

 

 

Large and Affordable Light Yellow Sapphire!

Very reasonable price for a yellow sapphire of this size--light tone makes it very affordable!

Have you always wanted a large, light 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.

Item: #yc441 Size: 10.18 x 7.98 x 5.66 mm
Weight: 4.41 carats Price: $1900
 
For more information please email:
  billkent@islandhosting.com

 

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!

Clarity: LI2
Lightly Included 2 describes a gem that has 2 or 3 of the tiniest inclusions that arebarely visible to the unaided eye of a trained, experienced gem-grader.
.

Item: #yc466 Size: 10.56 x 9.18 x 5.37 mm
Weight: 4.66 carats Price: $3700
 
   
For more information please email
  billkent@islandnet.com  




Unusual Color Sapphire

Warm pastel gem; very light, slightly orangy brown color.

Interesting sapphire--subtle, understated, uncommon.

If you prefer very light pastel colors, you'll love this gem!


Untreated
sapphire indicated by: Very slight, intact, unaltered crystal inclusions.

Clarity: MI2

Item: #pws202 Size: 8.03 x 5.72 x 4.27 mm
Weight: 2.02 carats Price: $975.
   

Untreated, Unheated Yellow Sapphires not yet photographed:

.93 carat round medium-light yellow, clarity: MI1, Good proportions.
Do you want a sparkling gem that's not a deep yellow; more like a light canary diamond? This is a great price: $375.
.


.93 carat oval, beautiful rich yellow, clarity: LI2. excellent proportions.
Good cutting, good clarity, good color: Nice gem!
Gemmological Institute of Colombo Certificate # SpG0029-000004/1
. $575..


.95 carat round, medium-light tone, yellow sapphire, Flawless clarity, slightly deep proportions give this gem a smaller "face-up" size for its weight; this makes it more affordable than if cut to "excellent" proportions.
Gemmological Institute of Colombo Certificate # SpG0048/5-000280
. $300.

.99 carat round, orange/yellow sapphire--delicious tangerine color! This sapphire is bright, beautiful and very unusual. Do you want an intense, brilliant, unique gem?
If you love the unusual, you'll love this one! Clarity: LI2.
Gemmological Institute of Colombo Certificate # SpG0004/4-000280 $675.

 

1.10 carat emerald-cut, very light tone yellow, clarity LI1.
Do you like subtle, very understated color? This emerald-cut sapphire has just a slight warm tint.
EGL certificate # 92896107. $475.

 

1.22 carat oval. Clarity: MI2, medium yellow sapphire.
A slight "window" in the center of the gem reduces  the cost considerably.
Gemmological Institute of Colombo Certificate # SpG0033-000280. $375.

1.25 carat square cushion-shape, very light yellow sapphire--very brilliant and full of life because it's cut to Ideal Proportions. Clarity: LI2.
Gemmological Institute of Colombo Certificate # SpG0029-000280. $475.


1.38 carat oval. Clarity: LI2, light yellow sapphire, good proportions and great size for the price!  $450.

 

 

Please email

billkent@islandhosting.com

for more information on these stones.

 

How Do We Know These Are Unheated Yellow Sapphires?

 

Heat treatment of yellow sapphires modifies their internal structure.
Heat treatment also modifies the natural variations.in the structure
and composition of. .
'inclusions' found in yellow sapphire.. . .

.
Silk indicates no heat treatment The type of inclusion known as "Silk", when intact and unaltered,.indicates unheated sapphire.
.
Silk is.the term for the mineral named 'rutile' which
. forms microscopically.thin strands within yellow sapphires..This photograph.shows intact, undamaged silk . (highly-magnified). Unaltered silk is.the natural indicator of unheated . sapphire. .

Every sapphire on this site is a unique.creation of nature, containing its own, one-of-a-kind.pattern of.natural, unaltered inclusions.indicating.freedom.from heat-treatment...

.

Visual examination and Fourier Transform Infrared Spectroscopy (FT-IR) conducted by an independent, "third-party" Gemological Laboratory conclusively determine every sapphire on www.sapphires.ca is
. an.unheated sapphire. .


Inclusions in Sapphires

When examined under a gemological microscope, virtually every gemstone
reveals inclusions.

Small (microscopic) inclusions have relatively small impact on the value of colored gems, including sapphires.

Large inclusions reduce value. If inclusions are large enough, value may be reduced by eighty or ninety per cent.


 

 

 

 

 
 

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.


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. .


Near Flawless / Lightly Included 1  (NFL / LI1) is the next clarity grade below Flawless.
Lightly Included 1 describes a gem that has just the tiniest inclusion, barely visible to the unaided eye
. of a trained, experienced grader..
Most non-professional observers are unable to see LI1 inclusions. .

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..
Most non-professional observers are unable to see LI2 inclusions. .



Moderately Included 1 (MI1) inclusions are minor inclusions that don't affect beauty or durability. These inclusions are often not visible to the casual observer..

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. .
Inclusions in MI1/MI2 gems are so small that many people cannot see them without magnification. .

 

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..


 

Proportion Grading Of Yellow Sapphires

 

Good proportions in gems are found when the crown angles and pavilion angles.
are within acceptable ranges, resulting in the pavilion (bottom)....
and the crown (top) of the stone being neither too deep nor too shallow.....

Proportions are more important in diamond grading.than in colored stone grading.

Excellent proportions are essential to the beauty of a diamond.
because proportions determine how light is reflected from the surface....
of the diamond and how light is refracted from within it.....

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..
to the gem's beauty than proportions.....


Each individual piece of sapphire 'rough' (the uncut, unpolished gem material as
it's found in the mine) has its own unique shape.
..

.
Some sapphire rough yields maximum weight if the pavilion is cut shallow.
and some yields the most weight if the pavilion is cut deep.
...

The cutter of yellow sapphires saves as much weight from the rough .
sapphire crystal as possible while producing the most beautiful finished gem.....
The best way to cut the largest possible sapphire is to plan the proportions and set the angles....
that are most appropriate for each piece of rough.....


Canadian and American Clients: Your gem purchases are free of taxes, customs fees and shipping charges. .

You pay nothing extra.

 

Canadian Clients receive all items "taxes and shipping included".
.

American Clients: Your gems are free of import taxes, customs duties and shipping charges.

Plus, you receive an Export Discount of 5%.


International Clients: You receive an Export Discount of 5%.

 
Returns
   

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.

 

 

 
My Profile
                 
  Bill Kent G.G.  

..Professional buyer in the gem-cutting and mining areas of the world since1972.

Member  

National Association of Jewelry Appraisers

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.

 
 

Training

 

Graduate Gemologist (G.G.) with Appraisal Certificate
(Gemological Institute of America)

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
(Asian Institute of Gemological Sciences, Bangkok, Thailand)

Advanced, specialized, in-depth education in the separation of treated and untreated sapphires further protects your investment in your untreated sapphire.

 
                 
 

 

William Kent Corporation

P O Box 5544 ...Victoria.. BC ..Canada .V8R 6S4

Tel: ..250-595-6024


email:billkent@islandhosting.com

.www.sapphires.ca

. your best source for untreated sapphires .

 
 
 
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