Jewelry New Arrivals Pairs Lots Contact
  : Boulder Opal
Shop By

Single

Pairs

Lots

Faceted

Cab

Gemtype Color Shape Weight Size Date Clarity Price Origin
You Selected (104): Boulder Opal Boulder Opal Clear All
Sort By:
Compare
ID: 4619251 pcs
thumb image of 7.6ct Oval Cabochon Multicolor Boulder Opal (ID: 461925)
7.56 ct Boulder Opal
14.3 x 12.2 mm
$ 53.07
Quantity
Item in Stock
Compare
ID: 3219271 pcs
thumb image of 31.2ct Pear Cabochon Multicolor Boulder Opal (ID: 321927)
31.20 ct Boulder Opal
29.5 x 20.6 mm
$ 218.40
Quantity
Item in Stock
Compare
ID: 4618751 pcs
thumb image of 4.8ct Fancy Cabochon Multicolor Boulder Opal (ID: 461875)
4.78 ct Boulder Opal
13.2 x 9.9 mm
$ 33.56
Quantity
Item in Stock
Compare
ID: 3107651 pcs
thumb image of 7.3ct Oval Cabochon Multicolor Boulder Opal (ID: 310765)
7.27 ct Boulder Opal
20 x 9.3 mm
$ 50.89
Quantity
Item in Stock
Compare
ID: 3029221 pcs
thumb image of 32.4ct Oval Cabochon Multicolor Boulder Opal (ID: 302922)
32.39 ct Boulder Opal
33.7 x 15 mm
$ 226.73
Quantity
Item in Stock
Compare
ID: 3711021 pcs
thumb image of 4ct Pear Cabochon Multicolor Boulder Opal (ID: 371102)
4.00 ct Boulder Opal
15.8 x 7.6 mm
$ 29.16
Quantity
Item in Stock
Compare
ID: 3695641 pcs
thumb image of 7.1ct Fancy Cabochon Multicolor Boulder Opal (ID: 369564)
7.09 ct Boulder Opal
13.9 x 11.9 mm
$ 49.63
Quantity
Item in Stock
Compare
ID: 3219251 pcs
thumb image of 32.4ct Pear Cabochon Multicolor Boulder Opal (ID: 321925)
32.44 ct Boulder Opal
28.4 x 23.2 mm
$ 227.08
Quantity
Item in Stock
Compare
ID: 2480001 pcs
thumb image of 13.1ct Oval Cabochon Multicolor Boulder Opal (ID: 248000)
13.14 ct Boulder Opal
19.5 x 13.5 mm
$ 91.98
Quantity
Item in Stock
Compare
ID: 3656211 pcs
thumb image of 7ct Fancy Cabochon Multicolor Boulder Opal (ID: 365621)
6.99 ct Boulder Opal
14.3 x 11 mm
$ 48.93
Quantity
Item in Stock
Compare
ID: 3004501 pcs
thumb image of 33.4ct Oval Cabochon Multicolor Boulder Opal (ID: 300450)
33.36 ct Boulder Opal
28.1 x 19 mm
$ 233.52
Quantity
Item in Stock
Compare
ID: 4206781 pcs
thumb image of 11.9ct Fancy Cabochon Multicolor Boulder Opal (ID: 420678)
11.91 ct Boulder Opal
23.6 x 10.6 mm
$ 71.46
Quantity
Item in Stock
Compare
ID: 4618701 pcs
thumb image of 7ct Round Cabochon Multicolor Boulder Opal (ID: 461870)
6.96 ct Boulder Opal
13.4 mm
$ 48.86
Quantity
Item in Stock
Compare
ID: 4101191 pcs
thumb image of 34.2ct Oval Cabochon Multicolor Boulder Opal (ID: 410119)
34.16 ct Boulder Opal
23.4 x 19.6 mm
$ 239.47
Quantity
Item in Stock
Compare
ID: 4495991 pcs
thumb image of 10.2ct Oval Cabochon Multicolor Boulder Opal (ID: 449599)
10.22 ct Boulder Opal
31.8 x 9 mm
$ 71.54
Quantity
Item in Stock
Compare
ID: 4619241 pcs
thumb image of 6.8ct Oval Cabochon Multicolor Boulder Opal (ID: 461924)
6.81 ct Boulder Opal
14.1 x 10.3 mm
$ 47.81
Quantity
Item in Stock
Compare
ID: 3219231 pcs
thumb image of 35.8ct Pear Cabochon Multicolor Boulder Opal (ID: 321923)
35.81 ct Boulder Opal
26.4 x 23.5 mm
$ 250.67
Quantity
Item in Stock
Compare
ID: 3652491 pcs
thumb image of 10.4ct Fancy Cabochon Multicolor Boulder Opal (ID: 365249)
10.40 ct Boulder Opal
19.5 x 12.6 mm
$ 72.80
Quantity
Item in Stock
Compare
ID: 2408211 pcs
thumb image of 6.6ct Fancy Cabochon Multicolor Boulder Opal (ID: 240821)
6.63 ct Boulder Opal
18.6 x 10.8 mm
$ 46.41
Quantity
Item in Stock
Compare
ID: 4535311 pcs
thumb image of 12.1ct Round Cabochon Multicolor Boulder Opal (ID: 453531)
12.06 ct Boulder Opal
16.5 mm
$ 252.17
Quantity
Item in Stock
Compare
ID: 4618671 pcs
thumb image of 3.6ct Oval Cabochon Multicolor Boulder Opal (ID: 461867)
3.60 ct Boulder Opal
11.9 x 8.2 mm
$ 25.27
Quantity
Item in Stock
1
2
3
4
5
Boulder Opal

Boulder opal is the second most prized form of opal, after black opal. The name derives from the fact that boulder opal is found embedded in ironstone boulders. The opal usually forms as thin veins within these boulders, and most stones are cut to include some of the host ironstone matrix. Boulder opal is sometimes referred to as opal in matrix for this reason. Boulder opal is especially attractive because, like the black opal, it has a dark body tone which adds vibrancy to the play of color. Boulder opal also has a higher density because of the ironstone content, and can be more durable as well.

Browse Similar or Related Gemstones:
All Opal Gemstones
Black Opal Gemstones
Opal Doublet Gemstones
Opal in Matrix Gemstones
Fire Opal Gemstones

English speaking customer support only

Toll Free - USA & Canada only:
1-800-464-1640

International:
+66-39303404

Reorder Items

Save Money
No shipping Fees for Additional Items!
$6.99 Worldwide Shipping

GemSelect Gemstones
X Close Window
Colored Gemstones
X Close Window
Colored Gemstones
X Close Window
Colored Gemstones
Size and Weight

Gems are always measured in Millimeter (mm)

Dimensions are given as;
length x width x depth,
except for round stones which are;
diameter x depth

Select gems by size, not by weight!
Gem varieties vary in density, so carat weight is not a good indication of size

Note: 1ct = 0.2g

Size Comparison Chart