Ammonite Pair

Introduce a striking architectural element to your custom jewelry designs with this premium matching pair of Natural Ammonite Fossil Cabochons. Expertly cut into a contemporary, geometric trapezoid (or modified keystone) shape, these stones are sliced from a single ancient fossil to create a flawless, mirrored presentation.

This pair stands out for its remarkably tight, crisp Fibonacci spirals right at the heart of each stone. The internal chambers feature a beautiful gradient of deep molasses brown transitioning into glowing honey and translucent golden tones. Accented by highly defined, bright white calcite suture lines that trace the organic geometry of the shell, these stones balance ancient history with modern styling. They are an impeccable choice for high-end statement earrings, cuff links, or a matching multi-stone jewelry set.

Key Features & Specifications
Gemstone / Fossil: Genuine Ammonite (Cleoniceras)

Shape: Geometric Trapezoid / Keystone Matched Pair

Color Profile: Deep chocolate brown, golden honey-amber, and sharp, contrasting white calcite mineralization lines

Cut/Finish: Superbly polished with a glossy, smooth dome and flat backs for easy bezel or prong setting

Symmetry: Precision mirror-image alignment across both pieces

Treatment: 100% Natural prehistoric fossil, cut and polished to highlight internal crystal structures