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 (93): Boulder Opal Boulder Opal Clear All
Sort By:
Compare
ID: 3652241 pcs
13.21ct Boulder Opal
14.39 x 14.08 x 7.05mm
USD 92.47
Quantity
Item in Stock
Compare
ID: 3004561 pcs
20.74ct Boulder Opal
23.08 x 15.03 x 7.65mm
USD 145.18
Quantity
Item in Stock
Compare
ID: 3029151 pcs
23.48ct Boulder Opal
21.30 x 6.95mm
USD 164.36
Quantity
Item in Stock
Compare
ID: 3004541 pcs
20.92ct Boulder Opal
25.45 x 14.85 x 6.26mm
USD 146.44
Quantity
Item in Stock
Compare
ID: 3717011 pcs
33.93ct Boulder Opal
26.72 x 21.28 x 8.42mm
USD 204.06
Quantity
Item in Stock
Compare
ID: 3107621 pcs
6.07ct Boulder Opal
19.13 x 7.70 x 4.89mm
USD 163.89
Quantity
Item in Stock
Compare
ID: 4206711 pcs
15.56ct Boulder Opal
19.26 x 14.33 x 7.80mm
USD 93.36
Quantity
Item in Stock
Compare
ID: 3652481 pcs
11.33ct Boulder Opal
15.83 x 12.78 x 6.51mm
USD 79.31
Quantity
Item in Stock
Compare
ID: 4101191 pcs
34.16ct Boulder Opal
23.40 x 19.60 x 9.71mm
USD 239.47
Quantity
Item in Stock
Compare
ID: 3652301 pcs
17.55ct Boulder Opal
19.43 x 13.28 x 8.39mm
USD 122.85
Quantity
Item in Stock
Compare
ID: 3220371 pcs
42.73ct Boulder Opal
27.52 x 20.79 x 8.72mm
USD 299.11
Quantity
Item in Stock
Compare
ID: 3030251 pcs
18.34ct Boulder Opal
21.12 x 14.70 x 7.03mm
USD 128.38
Quantity
Item in Stock
Compare
ID: 3221161 pcs
36.68ct Boulder Opal
21.82 x 21.14 x 10.00mm
USD 256.76
Quantity
Item in Stock
Compare
ID: 3004531 pcs
28.58ct Boulder Opal
23.12 x 18.45 x 7.13mm
USD 200.06
Quantity
Item in Stock
Compare
ID: 2408211 pcs
6.63ct Boulder Opal
18.57 x 10.78 x 4.53mm
USD 46.41
Quantity
Item in Stock
Compare
ID: 4207781 pcs
11.56ct Boulder Opal
16.38 x 12.57 x 6.65mm
USD 69.36
Quantity
Item in Stock
Compare
ID: 4207561 pcs
4.45ct Boulder Opal
16.02 x 8.65 x 4.62mm
USD 26.70
Quantity
Item in Stock
Compare
ID: 3219221 pcs
28.03ct Boulder Opal
27.22 x 19.56 x 6.87mm
USD 196.21
Quantity
Item in Stock
Compare
ID: 3107381 pcs
6.43ct Boulder Opal
15.03 x 12.10 x 5.62mm
USD 45.01
Quantity
Item in Stock
Compare
ID: 2480001 pcs
13.14ct Boulder Opal
19.47 x 13.51 x 5.47mm
USD 91.98
Quantity
Item in Stock
Compare
ID: 4206341 pcs
9.04ct Boulder Opal
29.06 x 8.23 x 5.10mm
USD 54.24
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.
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