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[NEW] " Notice to ALL CUSTOMERS - Bello Opal Authentic Statement "
10 things you need to know about "Synthetic Opal"


Bello Opal® cabochon (Polymer Impregnated Synthetic Opal ) is a popular item for jewelry designs.

Sanwa offers opal cabochon from size 1.2mm to 50mm+ and they are available in different kinds of shape, such as round opal cabochon, oval opal cabochon, pearl opal cabochon, marquise opal cabochon, trillion opal cabochon, heart opal cabochon...etc. Custom shape is welcomed.

Even the size is as small as 1.50mm, lab-grown synthetic opal fire still looks strong.

Each piece of lab-grown synthetic opal looks unique from each other.

Beautiful opal cabochons create new inspiration for designers among different product designs.

Small size cabochons are excellent items for pave design jewelry or mix & match with other kinds of gemstones.
The beautiful "Play of colors" has provided more characterized products in this increasingly maturing jewelry market.

Sanwa offers 5 thickness level for selection. C1 &  C3 are the most popular thickness level.

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Properties comparison to natural opal

Category Polymer Impregnated Synthetic Opal Natural Opal
80% Silica & 20% Resin Silica & Water
MOHS Hardness
4 3-5.5
Specific Gravity
1.80-1.90 1.98-2.20
Heat Resistance
130 degree C. 100 degree C.
Product Features
Color Range
OP01 to OP78
Degree of transparency
Relatively low
Jewelry Plating
Bello Opal® could work well with jewelry plating
Chemical Resistance
Thinner, Methanol, Acetone
Glass Compatibility
Bello Opal® is not glass compatible. Please refer to "Galaxy Opal"
Guarantee on quality
No Cracking, Crazing or Yellowing