Comments for Opal Pro Expert Opal Advice

Comment on What is an Opal? by Leftsuems

Leftsuems — Tue, 01 Mar 2011 10:01:00 +0000

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Comment on KORIOT and YOWAH Opal - A Rising Star? by Bariatric Surgery %0B

Bariatric Surgery %0B — Mon, 13 Dec 2010 21:54:34 +0000

gemstones are expensive but when you give a ring with gemstone to your girlfriend, she would really like it -~;

Comment on KORIOT and YOWAH Opal - A Rising Star? by Tungsten Carbide :

Tungsten Carbide : — Sat, 23 Oct 2010 14:30:42 +0000

the best and ultimate gemstone is of course diamond because it sparkles and very expensive:*~

Comment on KORIOT and YOWAH Opal - A Rising Star? by Lunch Bags `

Lunch Bags ` — Tue, 12 Oct 2010 02:07:03 +0000

the best gemstones would be diamond and topaz, red rubies are great too’`-

Comment 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.`,”

Comment on KORIOT and YOWAH Opal - A Rising Star? 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.-~-

Comment on KORIOT and YOWAH Opal - A Rising Star? 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.

Comment on KORIOT and YOWAH Opal - A Rising Star? 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.

Comment on What is an Opal? by wayne

wayne — Tue, 15 Apr 2008 01:47:24 +0000

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Comment on What is an Opal? by wayne

wayne — Sun, 09 Mar 2008 01:58:59 +0000

Buying Rough Opal On The Internet.
I have seen many new cutters go straight out and buy parcel rough black opal and start cutting
Unfortunately they rub lot colour off trying to get good polish.
This is due to 2 reasons firstly experience and how to polish and also most cutters have new wheels and don’t realise how sharp these diamond tip wheels are and leave big scratches in the opal so when polished the colour bar is rubbed away.
Best is to start with rough opal from Koroit or Yowah, just middle to low grade opal rough
This is easy to polish as you don’t have to follow colour bars .it is messy and brown stains but you can tell when polish is good on the opals.
Next is to try cooper Pedy rough opal as they have thick colour bars and to rub down, than go and try boulder opal or black opal with thin colour bars

Remember to always rub the worst looking rough in parcel, never start with the best promising pieces of rough, pick out the best looking rough opal and leave it aside than rub and polish the lower grade, this helps you get the feal of the parcel and sometimes cutters get top and bottom mixed as experiment on low grade before you cut the good opals
Buy volume parcels and get experience, if diamond wheels too sharp just try rub down smooth with any tough stone and make sure you rub down even and have plenty of water
Semi black or grey rough is good to start for lightning ridge material and sometimes these centres are black so if cutting these go for smaller black opal instead of large grey based opal