The Siren Onyx Signet Pendant Necklace

A timeless synthesis of bold geometry and mid-century refinement. The Siren Onyx Signet Pendant Necklace by House of Rivit delivers an impeccably clean, high-end aesthetic designed for the modern minimalist. Suspended from a fluid, dense snake chain, the statement piece is anchored by a substantial, rectangular cushion-shaped signet pendant that sits with a comforting, premium weight against the chest.

At the heart of the pendant is a deeply polished, oval cabochon black onyx-style stone, possessing a glass-like luster that absorbs and reflects the light. The striking dark center is beautifully contrasted by a heavy gold-toned border, meticulously detailed with a radiating, sculpted gadroon texture. The continuous, undulating ridges of the metal framework frame the smooth stone to add depth, tactile rich contrast, and an elevated vintage allure. Complete with a premium lobster clasp and an adjustable extension chain finished with a delicate teardrop bead, this necklace offers seamless versatility and understated luxury.

Product Highlights

• Deep Polished Black Cabochon: Features a smooth, high-luster black onyx-style oval stone as a bold centerpiece.

• Sculpted Gadroon Border: Framed by a heavy gold-toned cushion pendant detailed with architectural, radiating ridges for texture.

• Premium Fluid Snake Chain: Suspended from a dense, high-shine round snake chain that contours smoothly against the skin without catching.

• Modern Vintage Aesthetic: Combines retro signet-inspired details with a clean, contemporary silhouette for high-end styling.

• Adjustable Custom Fit: Finished with a secure lobster clasp and an extension chain detailed with a gold droplet bead.