Australian opal Ring / Cabochon / new- 2.06 g - (1)

Ring of Australian Opal / Cabochon / new

Set in 925 sterling silver

Weight: 2.06 g / 10.3 ct

6.6 mm x 5.4 mm

New and unworn

Ring size:

U 59
UK R
US 8.7
FR 19
Inner diameter: 18.8 mm

The opal is a mineral of the oxide and hydroxide class. As an amorphous solid, opal (like glass) has no crystal structure and usually appears as a mass filling or nodular formation.

Opals are processed exclusively as gemstones.

The word opal was borrowed from Latin opalus or Greek ὀπάλλιος opallios meaning “precious stone,” and is believed to derive from upala in Sanskrit. According to Allan W. Eckert in his work The World of Opals, it referred to various stones, while the early Magyars called opal mines opál-bánya.

Opals have long been regarded as especially valuable gemstones since antiquity, sometimes valued even higher than diamonds. Pliny the Elder wrote: “[…] it has its own fire, refined like the carbunculus; it possesses the purple sparkle of amethyst and the sea-green of emerald, and an utterly incredible play of light.”

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