Amber: The Complete Guide Amber is sunshine solidified into stone. Fossilised tree resin that can be 300 million years old, amber preserves the ancient world in extraordinary detail -- insects,…
Sugilite: The Complete Guide Sugilite is one of the youngest gem discoveries in commercial trade, yet it has already developed a passionate collector following and commands prices that reflect its…
Labradorite: The Complete Guide Labradorite is the showstopper of the feldspar family. Pick up a piece of labradorite and tilt it -- suddenly the grey or dark surface explodes into…
Iolite: The Complete Guide Iolite is one of the best-kept secrets in the gem world. Its deep violet-blue colour rivals sapphire at a fraction of the price. Its extraordinary pleochroism…
Kunzite: The Complete Guide Kunzite is one of the most romantic-looking gems in nature. Its delicate lilac-pink to vivid pink-violet colour -- caused by trace manganese in the spodumene crystal…
Larimar: The Complete Guide Larimar is one of the few gemstones found in only a single location on Earth. This sky-blue to blue-green pectolite from the Barahona province of the…
Andalusite: The Complete Guide Andalusite is a collector gem that deserves a much wider retail audience. Its extraordinary pleochroism -- showing strong golden-brown, olive-green, and reddish-brown simultaneously in a well-cut…
Sphene (Titanite): The Complete Guide Sphene is the gem with more fire than a diamond. Its dispersion value of 0.051 (compared to diamond's 0.044) produces rainbow spectral flashes of extraordinary…
Sunstone: The Complete Guide Sunstone is a gem of fire and sparkle. Its defining characteristic -- aventurescence, the shimmering metallic glitter from reflective mineral platelets within the stone -- creates…
Malachite: The Complete Guide Malachite is nature's own abstract art. Its distinctive banded green and lighter green patterning -- formed as concentric rings around growth centres -- creates patterns so…