Boulder Opal Pendant – 18K Gold, 11×5mm, Semi-Dark, Green & Blue

This slender Queensland boulder opal sits in a bezel of solid 18K yellow gold — a clean, modern setting that puts all the attention on the stone. The opal is small and elongated at 11×5mm, which gives it a quiet elegance on the neck rather than the bold statement of a larger piece. Its semi-dark body tone creates real contrast behind the colour play: a bright flash of green shifts toward blue as the pendant catches the light, the kind of movement that rewards a second look. Comes on a 45cm chain.

About Boulder Opal

Boulder opal forms as veins of precious opal within ironstone matrix in the opal fields of Queensland — primarily Quilpie, Yowah and Winton. Unlike black opal from Lightning Ridge, the opal cannot be separated from its host rock; it's cut as a single solid piece, with the natural brown ironstone remaining as the stone's backing. This gives boulder opal its distinctive look — vivid colour against rich earth tones — and also makes it physically more durable than other opals, since the ironstone host is harder than the opal layer it carries.

Specifications

• Stone: Boulder Opal
• Dimensions: 11×5mm
• Colour Play: Green and blue
• Body Tone: Semi-dark
• Brightness: Bright
• Pattern: Flash of colour
• Setting: Bezel, 18K yellow gold
• Chain: 18K yellow gold-plated, 45cm
• Treatment: Solid natural — untreated
• Origin: Queensland, Australia
• Availability: One-of-a-kind — 1 piece available

Caring for Your Opal

Opal is softer than diamond or sapphire, so a little care goes a long way. See Opal Care for storage, cleaning, and what to avoid.

Provenance

Hand-selected by Joseph Bernecki, sourced direct from the Australian opal fields and set in his Sydney workshop. Meet him any weekend at The Rocks Market, stall under the bridge, Sydney. Read Joseph's story →

Common Questions