Comments on: KORIOT and YOWAH Opal - A Rising Star?

By: Jennifer Powell

Jennifer Powell — Tue, 20 Jul 2010 18:42:08 +0000

Diamonds and Rubys are my favorite gemstones, i like the color red and the sparkle of diamond.`,”

By: Ewan Matthews

Ewan Matthews — Wed, 19 May 2010 09:17:05 +0000

my favorite gemstone is none other than diamond. the most expensive and priceless gemstone ever.-~-

By: Rough Opal

Rough Opal — Mon, 26 May 2008 05:47:17 +0000

Black opal is still more investment value than the others, and I think this will keep for long time.

By: opalholic

opalholic — Thu, 01 May 2008 23:19:37 +0000

The main difference in price is due to the fact that black, white and crystal opals are solid opals. The entire stone is comprised of opal, whereas boulder and yowah opals are primarily ironstone with small amounts of opal throughout, or on top. The weight of a yowah or boulder stone is mostly worthless ironstone, whereas the other opals are pure opal. It’s kind of like comparing solid opals to opal doublets and triplets. The solid black stone may cost $2000, whereas a doublet or triplet that has the same colors and brightness may only cost $200. Reason being, there is only a very small amount of actual gemstone present in the doublets and triplets. Will boulder prices rise as black opals become more scarce, yes, but I doubt to the degree that you imply.