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Direct Links to popular gemstones and cabochons:

Biggs Jasper
Black Onyx
Blue Topaz
Bruneau Jasper
Butterfly Jasper
Carved Stones
Chinese writing
Collectors items
Copper Stones
Dalmatian stone
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
Faceted gems
Fancy Jasper
Fossilized Coral
Imperial Jasper
Landscape jasp
Lightning Jasper
Melee Diamonds
Mexican Lace
Moss Agates
Ocean Jasper
Ocean Wave

Opals, Boulder
Owyhee Jasper
Paint Rock

Parrot Wing
Petoskey Stone
Poppy Jaspers
Rainforest Jasp
Rock Crystal
Rutilated quartz
Silver Stones
Spiderweb Obs Stone Sets

Zebra Agate

Understand mm sizes:

Quick guide:

 1" = 25mm



Change can help:

1 quarter= 24.2 mm

1 dime= 18mm

Both coins: 42mm


Helping jewelry artists make magic since 2003

When you buy from Heart of Stone Studio, you instantly make your designs stand out
with gorgeous, one-of-a-kind cabochons and drusies, all hand-picked by the artist-owner. 
Choose from more than 2,000 stones in all shapes, sizes, and colors--
the web's most beautiful stones at a fair price with great customer service.
Don't waste time, effort, and money setting junk stones.
Instead, buy the best at a fair price from Heart of Stone Studio.

We're In Transition!
Our shopping cart company has closed its services;
Our gorgeous New Website is scheduled to open April 1;
So, for the month of March, we can only accept orders by e-mail/phone.

Please e-mail Judy with your order or to arrange for a phone order.
SPECIAL GEM PRIZE drawing March 31 for all brave customers
who defy the odds and place orders during March.

Free Shipping on All U.S. and Canadian Orders during March!











     Guide to Gems On this Site       Bench Tips       Guest Gallery      Our Facebook Page     See your shopping cart:



Designer Gemstones
Important Note: The shortcut links below take you to the first page of a theme. Often themes will have two web pages, not just one. So, be sure to scroll to the bottom of each page and click "Next" to take you to the second page of that theme, or to the next page of gemstones. It's the best way not to miss anything!







Abstract Art


Art-carved gems


Artists' Pendants




Black in the abstract



These two pages  feature cabochons with interesting colors and patterns.   Fabulous drusies and unusual cuts by top lapidary artists.   A new page of handcrafted glass pendants, made by the top artists in the field. Ready for stringing!   Psilomelane, carved rainbow obsidian, velvet obsidian, and black onyx.   Striking Zebra Agate, Pinstripe Agate, White Plume Agate, and more!   Shimmering Eudialyte, Astrophyllite, and Pietersite  
















Druzy, Coated


Druzy Pendants


Druzy, B&W


Druzy, Natural


Agate Druzy

  Sun-Kissed Druzy  

Crystalline quartz cabs coated with real gold, platinum, and titanium


Large druzy cabs for fabulous necklaces

  Black agate, psilomelane, and white quartz drusies  

Natural colors of pink, green garnet, and rainbow pyrite.


More Natural Druzy in an agate matrix.

  Drusies in natural warm
colors, including Jasper
and Harvest Drusies.
















Faceted Gems   Fossil Gems  



Matte-Finish Stones




New additions

Melee Diamonds, colored stones, and synthetic gemstones for casting.   Two pages of ancient lifeforms locked in stone!   Bright green gaspeite, vivid Parrot Wing Jasper, malachite, and more!   No high-polish here: Fascinating stones with a soft surface treatment.  

Copper, Silver, and Pyrite make these stones gleam!


Find out about the latest additions to our stone collection.






















Purples and pure blues


Rare Finds


A range of Reds


Stone Sets


Shimmering colors set in matrix.


Beautiful freshwater pearl strands and finished necklaces.


Sugilite, charoite, and the pure blues of sodalite and lapis.


Large and extremely unusual stones for the collector

  Two pages of Lightning and Poppy Jaspers, Cinnabar, Pink Rhyolites, and more!   Matched stones for pendant and earring sets, bracelets, and necklaces  


















Student Specials


Sweet Deals


Tranquil Garden


Translucent Stones


Tropical Treasures


 Two pages of realistic and abstract Landscapes caught in stone: Owyhee Jasper, Bruneau Jasper, Misty Mountain Jasper, and many more.

  Student tools made of stone: Agate and hematite burnishing stones.   Two pages of great values on a variety of cabs and drilled pendants.  

Sagebrush Jasper, Kazakhstan agate, Apache Sage Jasper, Morrisonite, Imperial Jasper, Hurricane Starburst Jasper, Nature's Paintbrush, and more!


"See-through stones" such as Montana Moss Agate, Rutilated Quartz, Red Plume Agate, Black and White Agate, and rare Window Stone.


Two full pages of tropical-theme stones, including Fossilized Coral, Petoskey Stone, mother of pearl and shells.




















Water Colors










An entire page of stones in gorgeous aquas and teals: Ocean Wave Jasper, Malachite, Azurite, Chrysocolla, and Hemimorphite Zinc and Lapis in Quartz.


Natural-color unstablized and stablized Turquoise.




























Jewelry Designers, check out our Professional Customer Policy!

Other pages of interest on this site:

Testimonials  See what our customers are saying about us!

The Heart of Stone Gift Catalog  Finished jewelry and sculpture with Nature themes, perfect for instant gifts

Mineral Specimens  Rare and unusual mineral specimens for collecting or home decor.

My Favorite Links  A page of information about workshops and other artists

Bench Tips    Free metalsmithing, studio photography, and glass fusing tips and instructions

Surefire Handbook   The complete guide to begin glass fusing! Sorry, Sold Out for Now!

FAQs Glass   Answers to frequently asked questions about buying kilns and other glass fusing equipment

In our blog: The Importance of Cut in Faceted Stones

and, last but not least:

The Work of Judith Kiriazis   Original design jewelry with dichroic glass, precious metals, and gemstones by the owner of this site

 While the term "gemstones" can refer to any precious or semi-precious material used in jewelry, people most often equate gemstones with precious and semi-precious transparent faceted stones, such as diamonds, tourmalines, topaz, etc. However, the world of gemstones is much broader and varied than just these. Heart of Stone Studio does offer faceted gems, but our emphasis is on the world of translucent and opaque gemstones, which, instead of being faceted, are cut in a variety of shapes with flat backs to enable easy incorporation into jewelry designs. These flat-backed, domed-top gems are called "cabochons" or "cabs," and we invite you to browse through our dozens of pages of cabochons which originate all over the world and come to you in every color of the rainbow. Another emphasis of our website is a special type of flat-backed stone covered with tiny crystals, called "druzy" (also spelled "drusy.") Drusies come in a variety of natural colors, as well as with various metallic coatings, and they add sparkle and interest to any jewelry design. We are proud to offer what is probably the web's largest selection of high-quality drusies. We hope you will become part of our Heart of Stone Studio customer community. Every one of our stones is hand-picked and guaranteed to please!


We now accept:   Powered by eMartCart   or PayPal!  

We are dedicated to customer satisfaction!


Find whatever you're looking for by clicking on our Site Map and scanning our directories of finished jewelry, gemstones and minerals by type, and glass and metal topics.

Payment options, shipping costs and special offers, as well as our business policies, can be viewed at Our Business Policies.

If you have comments or questions, feel free to e-mail us by clicking on: Contact Us.

And don't forget to check the bottom of each page for tips, special offers, and navigation guidance. Links to other areas on the website can be found at the top of each page, and in the form of underlined text.

All photos on this website were taken or commissioned by Judith Kiriazis and are her property, copyright 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012.  Photos, text, and any other content of this website are the property of Judith Kiriazis , copyright 2011, and can be used only with her express written permission.

Copyright 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012 Heart of Stone Studio Gemstones Cabochons