Steven DiFranco Jewelers

October Birthstone - Opal & Pink Tourmaline



Opal takes its name from the Latin word "upala" meaning "precious stone".  Pliny, a learned roman scholar, described opal as having "the fire of the carbuncle, the brilliant purple of the amethyst and the sea-green color of the emerald, all shining together in incredible union".

The Romans believed opal was the symbol of hope and purity.  They called it "cupid paederos" (child as beautiful as love) and thought the wearer safe from disease. The Arabs believed that opals fell from heaven in flashes of lightning and thus acquired their marvelous color. Ancient Greeks also believed the opal had the power of giving foresight and the light of prophecy to their owners.

At Steven DiFranco Jewelers, we specialize in opals. Stop in and see our great selection!

  • Specific Gravity: 1.98-2.50

  • Reflective Index: 1.37-1.52

  • Hardness: 5.5-6.5

  • Opal Color: Blue and green colored opals are commonplace, strong reds and strong yellows are very prized and much more costly.

  • Countries of Origin: Australia, Slovakia, Brazil, Guatemala, Honduras, Indonesia, Japan, Mexico, Russia, and the United States.

  • Wedding Anniversary Gift: 13th year

Wearing Conditions: Opals are soft and very fragile, so everyday wear will abrade the surface and cause dullness. Use special care when wearing any opal jewelry.

Cleaning Conditions: The best, and safest, way to clean an opal is to use a soft brush with warm, soapy water.


Steven DiFranco Jewelers

Pink Tourmaline

Many people think that Tourmaline only comes in green.  Actually, Pink Tourmaline is a much more popular gemstone than the green version.  Beautiful in all metal colors.


  • Specific Gravity: 2.82-3.32

  • Reflective Index: 1.61-1.66

  • Hardness: 7-7.5

  • Tourmaline Color: Primarily pink, and green

  • Countries of Origin: Brazil, Afghanistan, Australia, Burma, India, Madagascar, Malawi, Mozambique, Namibia, Nepal, Nigeria, Pakistan, Russia, Zambia, Zimbabwe, Sri Lanka, Tanzania, and the United States.

Wearing Conditions: Tourmalines are quite durable though, if worn on a daily bases, will become abraded and lose their polish over the course of several years.

Cleaning Conditions: Pink Tourmalines can be cleaned in a ultrasonic cleaner with caution. Many times Tourmalines contain inclusions which expand faster than the gem around it, which can cause cracks.