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      South Australian Museum Shop Opal Jewellery Collection

      Gerard McCabe is a local, South Australian, family business with 4 generations of experience in fine jewellery. Much of our design inspiration comes from our heritage, local stories and our environment.  

      “Fine jewellery is more than our business, it is truly our passion. Selecting amazing gems from around the world and telling stories through design is what we love to do” – The McCabe Family.

      Gerard McCabe is Adelaide’s premier diamond jeweller and specialises in engagement rings, wedding rings and anniversary jewellery. We also develop contemporary jewellery designs featuring diamonds, coloured diamonds, pearls and natural gemstones. Our retail and online stores also stock Gerard McCabe brand watches and a collection of antique and period jewellery. Gerard McCabe stores also offer repair and restoration services and a bespoke jewellery design service.

      The Opalescence Collection

      The Opalescence Collection celebrates the magnificence of the opal gemstone.  Available in a variety of colour hues and intensities, opal is a gem with wide appeal.

      Opalescence jewellery features Coober Pedy solid opal in rings, earrings and pendants. Coober Pedy is an Opal mining town in the mid-North of South Australia and is considered the “Opal capital of the world”.

       

      Product Information

      Current Opalescence Jewellery Collection in the SA Museum Shop. Updated 06.02.25

      SKU 

      Product Image 

      Details

      563572

      Opalescence Pendant

      Opal: One solid white marquise cut Coober Pedy opal. Green and Blue play of colour. Total gem weight = 0.15ct.

      Metal: Sterling Silver.

      Chain is rhodium plated sterling silver.

      568011

      Opalescence pendant with cabochon marquise cut opals. Coober Pedy,  transparent opal, with green, mauve and red spectral exchange.

      Opals: 3x  white opals, total weight = 0.25ct. 

      Metal: 925 Sterling silver.

      Chain is rhodium plated sterling silver.

      557376

      Opalescence Earrings

      Opalescence stud earrings with a pair of cabochon cut, pear shape, Coober Pedy opals, and a white gold surround. 

      Opal: 2=0.19ct, Coober Pedy, class 1, transparent opal, with green, mauve and red spectral exchange.

      Metal: Sterling Silver 925
      562723

      Opalescence earrings with cabochon cut solid oval shaped opals. 

      Opal 2=0.36ct total weight, Coober Pedy, class 1, light opal, with mauve and green spectral exchange.

      Metal: 14ct white gold.

      Size: Approximately 9mm long.

      563402

      Opalescence pendant with one oval shape cabochon cut opal weighing = 0.21ct, Coober Pedy, class 1, light opal, with mauve and green spectral exchange.
      Metal: 18ct white gold
      Measurements: 13mm long x 9mm wide this measurement includes the bail.
      Chain: 18ct white gold, fine trace chain. Adjustable length: 42 - 45cm. 

      563409

      Opalescence earrings with cabochon cut solid marquise shape opals. 

      Opal: 2=0.21ct total weight, solid marquise shape opals, Coober Pedy, class 1, light opal, with mauve and green spectral exchange.

      Diamonds: 24=0.20ct total weight.

      Metal: 14ct white gold.

      Size: Approximately 18mm long.

      563368

      Opalescence pendant with three cabochon cut, oval shape, Coober Pedy opals set in yellow gold. 

      Opals: 0.37ct total weight, Coober Pedy, class 1, light opal, with green, mauve and red spectral exchange.

      Metal: 14ct yellow gold.

      Pendant length: Approx 18mm long.

      Chain: 18ct yellow gold, fine trace chain. Adjustable length: 42 - 45cm. 

      563406

      Opalescence earrings with a cabochon cut solid pear and marquise shape opals. 

      Opal 4=1.28ct total weight, Coober Pedy, class 1, light opal, with mauve and green spectral exchange.

      Metal: 14ct white gold.

      Size: Approximately 25mm long and 6mm wide.

      563374

      Opalescence pendant with one marquise shape cabochon cut opal weighing = 0.27ct, Coober Pedy, class 1, light opal, with mauve and green spectral exchange.
      Metal: 18ct white gold
      Measurements: 18mm long x 10mm wide this measurement includes the bail
      Chain: 18ct yellow gold, fine trace chain. Adjustable length: 42 - 45cm. 

      563582

      Opalescence pendant with an cabochon marquise cut opal. 
      Coober Pedy,  transparent opal, with green, mauve and red spectral exchange.
      Opals: 1x  light opal, total weight = 0.16ct. 
      Metal: 925 Sterling silver.
      Chain is rhodium plated sterling silver.

      563583

      Opalescence pendant with claw set cabochon oval cut opal. 
      Coober Pedy,  transparent opal, with green, mauve, and red spectral exchange.
      Opals: 2 x  Light opal, total weight = 0.24ct. 
      Metal: 925 Sterling silver.
      Chain is rhodium plated sterling silver.

      565222

      Opalescence Australian map made from boulder with round opal inlay
      Metal: 925 Sterling silver.
      Chain: 50cm 925 Sterling silver chain.

      565230

      Opalescence Solid Opal Pendant with CZ
      Opal: 7.10ct
      Metal: 925 Sterling silver.
      Chain: 50cm 925 Sterling silver chain.

      565225

      Opalescence Triplet Opal Pendant
      Metal: 925 Sterling silver.
      Chain: 50cm 925 Sterling silver chain.

      565228

      Opalescence Solid Opal Pendant with CZ
      Opal: 6.50ct
      Metal: 925 Sterling silver.
      Chain: 50cm 925 Sterling silver chain.

      565235

      Opalescence Coober Pedy Class A Solid Opal Pendant
      Opal: 2.20ct
      Length: 30mm.
      Width: 15mm.
      Metal: 925 Sterling silver.
      Chain: 50cm 925 Sterling silver chain.

      565241

      Opalescence Coober Pedy Class A Solid Opal Pendant
      Opal: 1.40ct
      Length: 25mm
      Width: 9mm
      Metal: 925 Sterling silver.
      Chain: 50cm 925 Sterling silver chain.

      565236

      Opalescence Coober Pedy Class A Solid Opal Pendant
      Opal: 2.30ct
      Length: 32mm
      Width: 13mm
      Metal: 925 Sterling silver.
      Chain: 50cm 925 Sterling silver chain.

      557379

      Opalescence ring with an cabochon cut opals. Coober Pedy,  transparent opal, with green, mauve and red spectral exchange.
      Opals: 4x  white opals, total weight = 0.48ct. 
      Metal: 925 Sterling silver.

      570353

      Opalescence tear drop pendant with cabochon cut opals. Coober Pedy,  transparent opal, with green, mauve and red spectral exchange.
      Opals: 3 x  white opals, total weight = 0.30ct. 
      Metal: 925 Sterling silver.
      Chain is rhodium plated sterling silver.

      553096

      Opals: Four cabochon cut solid opals total weight = 0.44ct
      Metal: Sterling Silver.

      570352

      Opals: Two cabochon cut opals weight=0.23ct
      Metal: Sterling Silver.
      Chain is rhodium plated sterling silver.

      563575

      Opalescence leaf pendant with cabochon cut opals. Coober Pedy,  transparent opal, with green, mauve and red spectral exchange.
      Opals: 3 x  white opals, total weight = 0.35ct. 
      Metal: 925 Sterling silver.
      Chain is a rhodium plated sterling silver.

      570341

      Opals: Four cabochon cut opals weight=0.48ct
      Metal: Sterling Silver.
      Chain is rhodium plated sterling silver.

      570351

      Opalescence pendant with cabochon cut opals. Coober Pedy,  transparent opal, with green, mauve and red spectral exchange.
      Opals: 2x  white opals, total weight = 0.19ct. 
      Metal: 925 Sterling silver.
      Chain is rhodium plated sterling silver.