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Direct Links to popular gemstones and cabochons:

Amazonite
Amethyst
Ammonites
Astrophyllite
Atlanticite
Biggs Jasper
Black Onyx
Bloodstone
Blue Topaz
Bruneau Jasper
Butterfly Jasper
Carved Stones
Charoite
Chinese writing
Collectors items
Copper Stones
Coral
Covellite
Cuprite
Dalmatian stone
Deschutes
Diamonds
Discounts
Druzy, Agate
Druzy, black 
Druzy, blue
Druzy, drilled
Druzy, Glacier
Druzy, Jasper
Druzy, Pink cob
Druzy, Platinum
Druzy, Rainbow
Druzy, Titanium
Druzy uvarovite
Druzy, quartz
Eudialyte
Faceted gems
Fancy Jasper
Fossilized Coral
Fossils
Hemimorphite
Imperial Jasper
Landscape jasp
Lapis
Larimar
Lightning Jasper
Malachite
Melee Diamonds
Mexican Lace
Mookaite
Moss Agates
Obsidian
Ocean Jasper
Ocean Wave

Opals, Boulder
Owyhee Jasper
Paint Rock

Parrot Wing
Peanutwood
Pearls
Peridot
Petoskey Stone
Pietersite
Poppy Jaspers
Psilomelane
Rainforest Jasp
Rhodonite
Rock Crystal
Rutilated quartz
Seraphinite
Shells
Silver Stones
Spiderweb Obs Stone Sets
Sugilite
Tinguaite
Turquoise

Unakite        
Zebra Agate

Understand mm sizes:

Quick guide:

 1" = 25mm

1/2"=13mm

1/4"=6.5mm

Change can help:

1 quarter= 24.2 mm

1 dime= 18mm

Both coins: 42mm

Heart of Stone Studio is proud to begin offering faceted gemstones. More and more customers are now adding faceted stones to their pieces, either to complement their cabochons or drusies, or as an accent piece in their design. Either way, faceted stones attract the eye and bring in the buyers. We are now proud to offer:

Melee Diamonds      Faceted Colored Gems      Semi-Precious Cabochons      Synthetic Stones for PMC and Casting


Next page: Fordite        Previous page: Jasper Druzy

 

Melee Diamonds

Melee Diamonds are genuine diamonds that are small, usually less than a third of a carat. They are surpisingly affordable, yet add tremendous value to the price that you can command for a piece. These melee diamonds are very special--I purchased them from a highly reputable dealer in Belgium. In fact, you can't get diamonds like these from the usual American sources. The usual American suppliers who carry melee diamonds offer them in clarities of VS2 or I or I2. These diamonds are all much higher grades of clarity. And, these diamonds are colorless, with color grades of D,E. The usual melee diamonds sold in the States are color grades G-I, which are much darker.

These diamonds may be small, but they have white-hot fire and sparkle. They are ideal cut, which is the technical term for excellent symmetrical cut and proportion. Because these diamonds are such top quality, their price is a little higher than what you might find for discount melee diamonds, but I guarantee you that they are worth it. In fact, I recommend against buying these if you're planning to set them with a lower-priced larger diamond--they are so bright they might make the bigger diamond look dark by comparison. Instead, I recommend them using them as accent diamonds--you won't need a lot of these; in fact, a single one will add a brilliant point of light to your piece.  Important note: These diamonds are conflict free, that is, guaranteed to be purchased from legitimate sources not involved in funding conflict, in compliance with United Nations resolutions.

Above is a photo showing how the various-sized diamonds that we offer compare to a 5mm round colored stone (in center). Actual diameter of each diamond in millimeters is listed below. You can click on the photo to get a better look. Any irregularities in the shape of the stones is a product of my poor photographic skills, not in the diamonds themselves. Please note: I have a limited supply of these on hand, although larger quantities can be backordered for you. Available quantities in stock are listed next to each stone. If you wish to order more than one stone, simply change the number in the quantity box, to a maximum equal to the number available.

Melee Diamonds, VVS clarity (VVS clarity means "Very very slight" inclusions, hardly noticeable under 10X magnification)

After a long period of unchanging price tags, melee diamond prices are headed up. So, before they become unaffordable, I've obtained some top-quality melee to offer to my discerning customers. These medium and larger stones have the brilliance of stars in a night sky, and are suitable for the finest jewelry designs. All are ideal-cut, colorless (D-E), from Antwerp. Guaranteed conflict-free. Your satisfaction is guaranteed.

NEW: Melee Diamond .03ct (VVS)
Average diam: 2.0 mm, color E
FCT03-VVS   $42.00  1  currently available 

Quantity:


 

Melee Diamond .04ct VVS
Average diam: 2.2 mm
FCT04-VVS    $60.00 each      4 currently available

Quantity:



Melee Diamond .05ct VVS
Average diam: 2.4 mm
FCT05-VVS    $71.50 each      8 currently available

Quantity:



Melee Diamond .06ct VVS
Average diam: 2.5 mm
FCT06-VVS    $87.50 each      10 currently available

Quantity:



Melee Diamond .07ct VVS
Average diam: 2.7 mm
FCT07-VVS    $96.75 each     
Sorry, Sold!

Quantity:



Smaller Melee Diamonds, VS clarity (VS clarity means "very slight" inclusions)

Melee Diamond .02 ct (VS)
Average diam: 1.7 mm
FCT02   $23.65 each  
Sorry, Sold Out for now.



Melee Diamond .03ct (VS)
Average diam: 2.0 mm
FCT03   $36.85 each  2 available
Sorry, Sold Out for now.

Quantity:



Melee Diamond .07ct (VS)
Average diam: 2.7 mm
FCT07    $84.70 each  1 available

Quantity:



Are you interested in obtaining larger, top-quality diamonds at a great price? I can get them for you!  Just E-mail me!


Colored Gemstones

As with everything else on my website, I have specially selected these stones for their beauty and quality. I have worked hard to make the colors in the photos accurate, but please refer to the written descriptions as well. 

Judy's Special Rating System: To help in your assessment and selection, I have personally inspected each and every stone under a 10-power scope and I have rated it E=Excellent, VG+=Really, really good, VG=Very Good, G+=Pretty darn good, G=Good. Regardless of the rating, your satisfaction is guaranteed. Prices depend not only on the type of stone, but its color, cut and clarity, as well as the supplier. The number of stones I currently have in stock follows the price. If you wish to order more than one stone, simply change the number in the quantity box, to a maximum equal to the number available.

Blue Topaz

London Blue Topaz
8mm trillion   E=Excellent cut and clarity with lots of flash and rich, deep blue color.

FCT36  $38.50 each    Sorry, Sold!

 


 

London Blue Topaz 
5 mm round      VG=color, very nice but lighter, medium-blue color; G+=cut; eye-clean 
FCT35   $5.50 each    
1 available

Quantity:



Amethyst



Amethyst and Citrine
   
7mm trillion    E=Excellent cut with lots of sparkle; wonderful light lavender is possible because these stones were cut from the area where amethyst grades into citrine.
 
FCT4    $13.50 each    
1 available

Quantity:



 

SPECIAL VALUE:
Amethyst
9 x 7 mm oval   Cut and clarity=VG+, but there is a "window" in the center of the stone.
FCT18   $19.99   regularly $29.50   
1 available

Quantity:



 

Peridot

Peridot
9 x 7 mm oval  Color=E, Clarity=G. These stones contain one or two miniscule nodules, probably of manganese, which are common to peridot, but they are hardly noticeable.
FCT10  $29.50 each    
1 available

Quantity:





Peridot
 
4 mm trillion  Cut, color, and clarity are all VG+
FCT12   $4.00 each    6 available

Quantity:





Peridot

6 mm round  Color, cut and clarity=VG+. Color ranges from medium green to olive green. 
FCT13   $14.95 each
     4 available

Quantity:


 


Colored Gemstones

As gem-manufacturing technology improves, the market is exploding with synthetic gems. These are wonderful stones for PMC artists: Because of their heat-resistant properties, they are said to be able to withstand the heat of kiln-firing of precious metal clays (PMC), and can be cast in place as well (remember to allow for the metal's shrinkage). These also are great for use in stone-setting practice. However, I can't guarantee them 100% as they might be subject to darkening or a slight color change depending upon the level and extent of firing. I suggest that you purchase a couple extra and experiment with them first before using them in your final piece.
PLEASE NOTE: I have posted how many of each type I currently have in stock, so you can easily order multiples by simply changing the number in the quantity box.  I can quickly backorder more for you if you wish.

Cubic Zirconia

 Cubic Zirconia (CZ) Faceted Rounds                    

                                      

Shown above left: CZ 4mm round
FCT98s   $0.40 each   
Quantity in stock: 60
 
Quantity:


 
       
Shown above right: CZ 5mm round
FCT99s   $0.60 each   
Quantity in stock: 7
 
Quantity:


 
       
Not shown: CZ 6mm round
FCT100s    $1.30 each   
Quantity in stock: 16
 
Quantity:


 


 

CZ, Faceted     white (clear)
4 x 4mm trillion  
Quantity in stock: 50

FCT163s     $ .75 each

Quantity:


 

 

SPECIAL CZs: Super White Precision Cut

These CZs are outstanding, especially for the price. They are carefully cut, are very clear,
and sport extra sparkle.

Cubic Zirconia (CZ), Precision-Cut     super white
3 x 3mm Princess Cut  
Quantity in stock: 6

FCT161sp     $1.50 each 

Quantity:


 

Cubic Zirconia (CZ), Precision-Cut     super white
2.5mm round  I chose this size because they are small enough to be
mistaken for real diamonds, yet large enough to show off their sparkle. 
(Photos show stones greatly enlarged.
Right photo shows stones upended to see the facets)

Quantity in stock: 15

 CZ Super White Precision Cut    FCT162sp     $ .75 each

Quantity:



 

Faceted Cubic Zirconia in Colors

Cubic Zirconia (CZ) 6mm faceted rounds These come in your choice of colors:

Shown at top: Cubic Zirconia pink                6mm round
FCT114s   $1.30 each   
Quantity in stock: 23
 
Quantity:


 
     
Second from top: Cubic Zirconia yellow      6mm round
FCT111s   $1.30 each   
Quantity in stock: 23
 
Quantity:


     
Third from top: Cubic Zirconia champagne 6mm round
FCT112s   $1.30 each   
Quantity in stock: 27
 
Quantity:


     
Fourth one down: Cubic Zirconia lavender  6mm round
FCT115s   $1.30 each   
Quantity in stock: 25
 
Quantity:


     
Shown at bottom: Cubic Zirconia purple     6mm round
FCT116s   $1.30 each   
Quantity in stock: 26
 
Quantity:


 


Cubic Zirconia (CZ) 6mm faceted rounds  Here are more color choices:

Shown at far left: Cubic Zirconia bright orange  6mm round
FCT113s   $1.30 each   
Quantity in stock: 28
 
Quantity:


 
       
Shown in center: Cubic Zirconia tourmaline green  6mm round
FCT117s  $1.30 each    
Quantity in stock: 9
 
Quantity:


 
       
Shown at right: Cubic Zirconia  black diamond opaque black 6mm round
FCT118s   $1.30 each    
Quantity in stock: 28
 
Quantity:


 


NEW CZ COLOR!


CZ, Faceted     Peridot bright light green
6mm round   
Quantity in stock: 21

FCT164s     $1.30

Quantity:


 

New: Larger Square Cushion Cubic Zirconias with Checkerboard Tops
 

CZ, Faceted, Checkerboard Top     champagne
10 x 10mm square cushion  
Quantity in stock: 8

FCT165s     $7.50 each

Quantity:


 


CZ, Faceted, Checkerboard Top    
purple
10 x 10mm square cushion  
Quantity in stock: 8

FCT166s     $7.50 each

Quantity:




CZ, Faceted, Checkerboard Top    
pink
10 x 10mm square cushion  
Quantity in stock: 8

FCT167s     $7.50 each

Quantity:


 


CZ, Faceted, Checkerboard Top    
lavender
10 x 10mm square cushion  
Quantity in stock: 8

FCT168s     $7.50 each

Quantity:


 


Lab-Created Gems

It is absolutely amazing, what can be done in gem labs these days. Material that is chemically and structurally identical to natural gems can be grown or synthesized in a highly-controlled industrial setting. Some major differences: a) They don't contain natural inclusions; b) Their colors are determined by chemistry; c) they cost a lot less than the real thing; and d) their uniform composition makes them ideal for firing with PMC. Otherwise, they have lots of sparkle and color and are perfect for many jewelry designs. Corundum is the material from which natural rubies, sapphires, and emeralds are cut. Spinel is another great gem group.

 

Faceted Pink Synthetic Sapphire (Corundum)

This is a synthetic (lab-made) corundum that is a beautiful medium pink sapphire pink. I was able to get
these faceted round stones in a closeout; the dealer is not carrying this color any more, so if you love these,
snatch up your faves because it's all I have. Sizes range from 2mm to 6mm round.

                                         

2mm   3mm   4mm   5mm   6mm
In stock: 25 In stock: 5 In stock: 22 In stock: 15 In stock: 40
FCT152s  $.60 FCT153s   $.80 FCT154s  $1.20 FCT155s  $1.50 FCT156s     $1.65
Quantity:


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Faceted Lab-Created Corundum:  Ruby Red Rounds

                                            
 

2mm   3mm   4mm   5mm   6mm  
In stock: 25 In stock: 25 In stock: 25 In stock: 25 In stock: 24  
FCT157s   $.50 FCT158s     $.80 FCT159s $1.20 FCT160s $1.50 FCT123s $1.85  
Quantity:


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Faceted Lab-Created Corundum: Deep Garnet Red

Synthetic Corundum Garnet Red
6mm faceted round   
Quantity in stock: 24

FCT122s   $1.85 each

Quantity:


 

 

Faceted Lab-Created Corundum: Color-change

These are also made of synthetic corundum, but they mimic real priceless Alexandrites
in that their color changes depending upon the type of light source.


Lab-created Corundum, faceted    
Alexandrite color change
6mm round  

FCT169s     $1.85 each  In stock: 15

Quantity:


 


Lab-created Corundum, faceted    
Alexandrite color change
8 x 6mm oval  

FCT170s     $2.80  each    In stock: 4

Quantity:


 

 

Faceted Lab-Created Spinels: The Blues

Their crystalline structure is identical to natural spinel, but surprisingly, they can
mimic the blues of aquamarine, zircon or blue topaz, and blue sapphire.

                         

Lab-created Spinel: Aquamarine (light) blue  6mm round
FCT119s   $1.85 each 
   Quantity in stock: 30
 
Quantity:


 
       
Lab-created Spinel: Zircon (med) blue 
6mm round
FCT120s   $1.85 each
   Quantity in stock: 25
 
Quantity:


 
       
Lab-created Spinel: Sapphire (dark) blue
6mm round
FCT121s   $1.85 each
   Quantity in stock: 20
 
Quantity:


 

 


Synthetic Gem Cabochons

These can be bezel-set, or cast in place and kiln-fired with PMC.

Lab-Created Corundum Cabochons

These beauties have the mineral properties of real corundum, the stuff of
which rubies, emeralds, and sapphires are made. They are tinted in three shades:
Dark red (garnet), medium red (Ruby), and very pale pink.
The reds come in two sizes as well.

                

 SIZE     Garnet Red   Ruby Red   Pale Pink  
5mm >   FCT125s   $2.10
In stock: 24
  FCT126s  $2.10
In stock: 24
  not available in 5mm  
   
Quantity:


 
Quantity:


     
 

Also Available in 6mm cabs:

6mm >   FCT142s  $2.70
In stock: 8
  FCT143s  $2.70
In stock: 16
  FCT171s  $1.85
In stock: 14
 
   
Quantity:


 
Quantity:


 
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Lab-Created Spinel Cabochons

Spinels are another great gemstone family, and these contain the same chemical structure
as real spinels. They are available in three shades and two sizes:

                                        

 SIZE      Aquamarine
(light blue)
  Zircon or Topaz
(medium blue)
  Sapphire
(dark blue)
 
5mm >   FCT129s   $2.20
In stock: 24
  FCT130s  $2.20
In stock: 19
  FCT131s  $2.20
In stock: 22
 
   
Quantity:


 
Quantity:


 
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Also Available in 6mm cabs:

6mm >   FCT146s  $2.80
In stock: 2
  FCT147s  $2.80
In stock: 7
  FCT148s  $2.80
In stock: 11
 
   
Quantity:


 
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Cubic Zirconia Cabochons

CZ Cabochons come in a variety of colors

               

 SIZE       Purple   Yellow   White (clear)  
5mm >   FCT134s   $1.40
In stock: 24
  FCT133s  $1.40
In stock: 10
  FCT132s  $1.40
In stock: 25
 
   
Quantity:


 
Quantity:


 
Quantity:


 

Also Available in 6mm cabs:

6mm >   FCT151s  $1.85
In stock: 19
  FCT150s   $1.85
In stock: 15
  FCT149s   $1.85
In stock: 24
 
   
Quantity:


 
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New Color CZ: Fiery Orange

CZ Cabochon Orange   CZ Cabochon Orange  
5mm round   6mm round  
FCT172s     $1.40
In stock: 25
  FCT173s     $1.85
In stock: 12
 
Quantity:


 
Quantity:


 

 


Next page: Fordite        Previous page: Jasper Druzy

Directory of gems by type, plus shopping tips:  Designer Gems

 

 

 

 

 

 

 

 

 

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