Rare Black & Deep Purple Seaham Sea Glass – Genuine UV/Dark Amethyst English Beach Glass Piece

An exceptionally rare piece of genuine Seaham sea glass with a fascinating hidden colour.

At first glance, this piece appears almost completely black, with a beautifully smooth frosted finish created naturally by decades of tumbling in the North Sea. However, when held up to a bright light, a deep purple or dark amethyst hue becomes visible within the glass, giving it an unusual and striking character.

This kind of sea glass is highly sought after by collectors due to its rarity and mysterious appearance. The contrast between the near-black exterior and the rich purple glow under light makes it a standout addition to any collection.

Handpicked from Seaham Beach on the North East coast of England, this piece has been naturally shaped and softened over many decades by the sea.

Details

• Genuine Seaham sea glass
• Rare near-black colouring with deep purple/amethyst translucency
• Naturally ocean tumbled and frosted
• Smooth rounded oval shape
• Handpicked from Seaham Beach, England
• You will receive the exact piece shown in the photographs

Size

Shown beside a UK 10p coin for scale (roughly equivalent to a US Quarter).

Ideal For

• Sea glass collectors
• Rare colour collectors
• Jewellery making
• Wire wrapping projects
• Coastal displays
• Curiosity collections
• Unique gifts for beachcombers and sea glass enthusiasts

Its unusual colour transformation under bright light gives this piece an almost gemstone-like quality, making it especially attractive for display or jewellery use.

Seaham is world-renowned for its sea glass heritage, where historic glass waste from old bottleworks and glass factories was shaped and frosted naturally by the sea over many decades.