Your jeweler has no idea what the difference is between "lab created" and " fissure filled". Niassa rubies are mined from the ground. They just go through a treatment that enhances their clarity. Upwards of 97% of gemstones go through some sort of treatment whether it be heating, irradiation, diffusion, fissure filling, dyeing. Some trwatments do effect the value, for instance, jade that has been bleached, filled and dyed really has little value at all. Thats why they dump it here. Asians wouldnt be caught dead with it. Its akin to costume beads. I suggest you go to the GIAs website for all of your info, not your local jeweler.

Robin B, Me thinks they got you too! Just how high quality do you think those Ruby's, Sapphire... are especially those 30$ - 70 dollar rings. They may have come out off the ground as that gemstone but those baby's are full of stuff that isn't genuine gemstone!