An 18" 925 sterling silver 1mm box chain necklace featuring a 15mm ancient Roman glass stone set in an oxidized basket design setting. Finished with a lobster clasp. Comes with a Certificate of Authenticity. Colour of Roman glass will vary.

Roman glass is genuine ancient glass manufactured during the Roman period, approximately 2,000 years ago, in the territories of the Roman Empire — primarily in the regions of present-day Israel, Jordan, and Syria. The glass was produced for practical use as vessels and containers; the fragments used in contemporary jewelry are pieces of that original manufactured glass, recovered from archaeological sites. Over approximately 2,000 years in the soil, chemical weathering acts on the surface of the glass: alkali components leach from the surface and a silica-rich skin builds up in successive nanometre-thin layers. These layers form a thin-film interference structure that produces the characteristic iridescent surface of Roman glass — a shifting spectral colour play that is a product of the burial transformation the glass underwent over centuries rather than a property of the original glass. In this necklace, the 15mm ancient Roman glass is set in an oxidized basket design setting. A basket setting is an open metalwork setting in which a series of metal wires or strips rise from a base and curve inward to hold the stone, enclosing it within a cage or basket structure rather than a continuous metal band: unlike a bezel setting, in which a solid wall of metal surrounds the stone at its perimeter, the basket setting holds the stone through a series of individual metal elements with open spaces between them, allowing light to enter the stone from the sides and from below. The oxidised finish of this basket setting is produced by a controlled chemical treatment — typically a liver of sulphur compound — that deposits a layer of silver sulphide on the metal surface, producing a dark, low-reflectance finish that ranges from warm brown to near-black. The combination of the oxidised basket setting and the Roman glass produces a strong visual contrast: the dark, matte antiqued surface of the oxidised silver basket is set against the iridescent, spectrally shifting surface of the 2,000-year-old ancient glass, placing two materials with opposite optical characters in direct proximity. The 1mm box chain — constructed from square hollow links in sequence — provides a structured, geometric base that pairs with the architectural quality of the basket setting.

A refined collector’s piece for anyone looking for a round ancient Roman glass necklace with an oxidized basket setting — a 15mm Roman glass disc framed in a dark antiqued silver basket on an 18" 1mm box chain, with a Certificate of Authenticity included.

✨ How to Wear

Wear alone as a refined ancient glass pendant at the collarbone. The 18" 1mm box chain positions the 15mm Roman glass basket pendant at the collarbone. The oxidized basket setting pairs naturally with both silver and mixed-metal jewelry.

💎 Quality & Certification

• Certificate of Authenticity: Each necklace comes with a Certificate of Authenticity confirming that the glass is genuine ancient Roman glass.

• Genuine Ancient Roman Glass: The glass stone is authentic Roman-period glass, approximately 2,000 years old, recovered from archaeological sites. The iridescence is a natural result of approximately 2,000 years of burial patina and is not applied or simulated.

• Colour Variation: Colour of Roman glass will vary. The exact iridescence, colour distribution, and surface character of each stone is unique and cannot be replicated.

• Verified Authentication: We are committed to transparency and high-quality standards. Every piece is sourced exclusively from trusted professional suppliers who meet our strict quality and material standards.

⚠️ Important: Size & Scale Disclaimer

• Natural & Historical Variation: As a genuine ancient glass fragment, each Roman glass stone is unique in colour, iridescence pattern, surface texture, and exact dimensions. Colour will vary from the images shown.

• Macro Photography: To showcase the Roman glass iridescence and oxidized basket setting detail, images (including model shots) are taken with macro lenses and may appear larger than life.

• Final Authority: The actual size and specifications of this product are strictly based on the physical measurements listed in the table below. Please confirm these dimensions meet your requirements before purchasing.

📐 Product Specifications

📦 Packaging Details

Each piece is carefully placed in a suitable jewelry pouch or box based on its style and value. We ensure all items are securely packed for safe transit while providing a convenient solution for your daily storage.