Cabochons

Arrowhead Gemcraft - Designer and freeform cabochons, specializing in Montana Agate.
Blue Heron Gems - Freeform cabochons of uncommon materials: Pietersite, Marra Mamba, Morrisonite, Binghamite and others.
CR Designs - Designer cut cabochons and finished cabochon jewelry.
Marquise Jewels - Retailer of semi-precious cabochons, beads and findings
Silverhawk's Creations - Designer shapes of exotic cabs: dendritic agates; Royal Sahara, parrot wing, Biggs jaspers; marra mamba tigereye, green goldstone.
Sugilite.org - Sugilite cabochons and jewelry. Historical, scientific, metaphysical and healing information.
TaoGem Gemstones - Free-form gemstone cabochons available, educational lapidary/gemstones blog, linked lapidary forum.
Topgems Cabochons - Cabochons in unusual shapes and uncommon materials: dendritic mookaite, nuumite, marra mamba, medusa quartz, porter plume agate.
Tradewinds Studios - Free-form cabochons: spectrolite, labradorite, sodalite, serpentine, and onyx.
Unconventional Lapidarist - Free-form cabochons, various gemstone roughs, finished stone goods.