🔺💙 Blue Synthetic Opal. 9.5mm Triangle. Rhodium. The Necklace That Wears the Boldest Shape in Blue Fire.

The triangle is one of geometry's most powerful and most considered forms — three sides, three angles, a shape that is as stable and as grounded as a form can be, the triangle's own inherent strength coming from the fact that it cannot be deformed without changing the length of its sides, the most structurally sound of all geometric shapes. In jewellery, the triangle carries that strength into the aesthetic realm — a pendant form that is as graphic and as bold as a geometric shape can be, as immediately striking and as considered as a piece of wearable architecture. This rhodium plated sterling silver necklace carries that triangle in its most magical, most luminous form: a 9.5mm x 10.5mm triangle rendered in blue synthetic floating opal — the opal's own play-of-colour phenomenon giving the triangle a surface that shifts and shimmers with every movement, the blue fire of the synthetic opal moving across the triangle's three flat faces in a continuous play of blue and white light that makes the pendant as alive and as dynamic as the geometric form it inhabits. The three straight edges of the triangle give the blue opal fire a graphic, architectural frame that is as bold and as considered as the series gets. The rhodium plating gives the setting a cool, mirror-bright finish. Lobster clasp. 16 inch with 2 inch extender. Pure .925 sterling silver beneath the rhodium.

The triangle form in synthetic opal is the most architecturally bold pendant in the blue synthetic opal series — the three straight edges and three sharp angles of the triangle giving the 9.5mm x 10.5mm pendant a graphic, geometric presence that the curved forms in the series — the heart, the pear, the moon — cannot replicate, the blue opal fire contained within the triangle's own precise geometric boundaries in a composition of shifting light and straight lines that is as considered and as contemporary as a pendant can be. The floating opal effect — the play-of-colour appearing to float within the stone rather than on its surface — gives the triangle a depth and a luminosity that is as enchanting up close as it is from across the room, the blue fire seeming to come from within the geometric form rather than from its surface.

Wear it as your most geometric, most architecturally considered everyday piece — the blue opal triangle necklace that wears the boldest shape in blue fire at your neckline, the most graphic and most architectural pendant in the blue synthetic opal series. Or gift it to someone who is drawn to the beauty of geometric forms: a lover of architectural jewellery, a collector of opal, anyone who wants to tri something extraordinary.

✨ Style & Wear

• 🔺 9.5mm x 10.5mm triangle pendant — three straight edges, bold geometric presence
• 💙 Blue synthetic floating opal — play-of-colour within precise geometric boundaries
• ☄️ Rhodium plating — cool mirror finish, complements the blue opal fire
• 🔗 16 inch + 2 inch extender — lobster clasp
• 🤍 Pure .925 sterling silver beneath rhodium plating
• 🎁 The bold geometric gift — architectural jewellery lovers, opal collectors, anyone who dares to tri

💎 Quality & Certification

• ✅ Verified Authentication: Our core Brand Certifications and Assay Certificates are displayed on our Homepage. Please visit to view our full commitment to quality.
• 🏭 Premium Materials: We partner only with reliable professional suppliers — every piece meets our strict standards for genuine .925 Sterling Silver.

⚠️ Important: Size & Scale Disclaimer

• 📸 Macro Photography: Product images are taken with macro lenses to showcase detail — items may appear larger than actual size.
• 📐 Final Authority: Actual dimensions are strictly based on the physical measurements listed in the specifications table below. Please confirm before purchasing.

📐 Product Specifications

📦 Packaging

Your necklace arrives in a simple, understated box with a protective pouch — modest packaging that keeps the focus where it belongs: on the triangle at your neckline.