|
|
Black
and Crystal Black Opal
Green/Blue in Color
Lightning Ridge Australia |
|
This chart is used when
green or blue is the primary play of color against a dark background
such as Lightning Ridge Australia Black Opal. Blue Green Black crystal
when held to light can be seen through. Large sheets (patterns) of
blue or green bright color may be valued at higher prices, called
"broadflash". Note - These are retail prices.
|
| Price
per Carat |
Commercial
|
Good
|
Fine
|
Extra
Fine
|
|
40-120
|
120-500
|
500-2800
|
2800-9200
|
|
|
|
|
Black and Crystal Black
Opal
Red/Orange in Color
Lightning Ridge Australia
|
| This chart
is used when red or orange is the primary play of color against a dark
background - Lightning Ridge Australia is the sole source. Red Multicolor
may be priced higher in each category while single color may be priced
lower (like green). A Black crystal is solid bright colors against a
dark background but when held to light can "illuminate". When special
patterns, images or "rolling flash" is visible higher prices may be
necessary. Note - These are retail prices. |
| Price
per Carat |
Commercial
|
Good
|
Fine
|
Extra
Fine
|
|
100-200
|
200-1400
|
1400-7000
|
8000-20000
|
|
|
|
|
Australian Crystal Opal |
| Crystal Opal
means "clear" when held to light, it can be very subtle colors to vivid
brightness and patterns found in Andamooka solid crystal opal. It may
demand up to 40-60% premium due to extreme durability. It is not known
to craze. Note - These are retail prices. |
| Price
per Carat |
Commercial
|
Good
|
Fine
|
Extra
Fine
|
|
2-40
|
40-120
|
120-1000
|
1000-6000
|
|
|
|
|
Australian White Opal
(Coober Pedy) |
|
White opal comes from
South Australia from white with no color, to pinfire colors of all
brightness, to even bright flashes of color. Some of the white opals
may have a grayish undertone. Typically white opals are opaque to
translucent. Note - These are retail prices.
|
| Price
per Carat |
Commercial
|
Good
|
Fine
|
Extra
Fine
|
|
1-30
|
30-90
|
90-500
|
500-2000
|
|
|
|
|
Boulder Opals
|
| This chart
is used when Queensland or Andamooka Boulder Opals with a dark background
with a play of colors in pinfire or small flashes or flakes appear.
The more % of the surface with colors versus "brown" matrix determines
value as well as brightness. Blue greens is much more common, reds add
to all prices. Note - These are retail prices. Prices are typically
quoted per piece NOT carats. |
| Price
per Carat |
Commercial
|
Good
|
Fine
|
Extra
Fine
|
|
1-20
|
20-100
|
100-400
|
400-2000
|
|
|
|
|
Yowah Nuts |
| This chart
is used when Yowah Nuts of Australia is the boulder opal. These light
brown to dark brown ironstone "nut" shaped rocks, appear bland on the
outside but inside may have spectacular colors or pockets of color as
shown in the image. When a piece is full of color and is split for earrings
as seen in this image prices may be higher in each category. When artistic
special patterns, images or designs appear prices may be quoted higher.
Often there is just "specs" of color or even no color just a cool pattern.
|
| Price
per Carat |
Commercial
|
Good
|
Fine
|
Extra
Fine
|
|
1-10
|
10-90
|
90-300
|
300-2000
|
|
| |
|
|
Mexican Fire Opal |
|
Reddish-orange body
color only, typically faceted like diamonds. May also be bright yellow,
bright red (Rarest) and several shades of all of these "fire" colors.
Mexican Opals with real flashes of color - greens, oranges, reds and
even blues are the most sought after and rarest of all Mexican opals
and these prices DO NOT reflect stones with colors beyond the base.
Note - These are retail prices.
|
| Price
per Carat |
Commercial
|
Good
|
Fine
|
Extra
Fine
|
|
2-60
|
60-180
|
160-350
|
320-800
|
|
Beautiful Australian Opals 
