These guides are available for download at our website at
http://www.gemporium.net/Ruby_Guide.pdf
Please do not alter the above guides without the permission of CIJBO and TGJTA.
We are manufacturers and wholesalers of colour gemstones such as ruby, sapphire (all colours), emerald, tanzanite, spessartite (mandarin garnet), tsavorite, fire opal, zircon, tourmaline, peridot, aquamarine, quartz (all varieties), etc, with our in-house lapidary and also accommodating precision cut and custom cuts.