About Us

Ruby Mill Limited is a UK company, producing gemstone jewellery with natural gemstones and precious metals.

Some products are totally hand-made in the UK, including cutting the gemstone and forming the precious metal. Others use purchased gemstones in settings made from precious metal components and a small number of complete rough castings.

The products produced are in three main categories, opals, opal inlays and coloured gemstones of other types.

The opals are cut in all shapes from regular ovals and triangles to totally freeform styles. Opals display a beautiful play of colour, in patterns that vary between stones; no two are exactly the same and some have rare colour patterns.

Opal inlays make attractive pendants and again each one has a different colour pattern.

Some of the coloured gemstones pendants are a one-off and others are in a more regular supply. There is a huge range of gemstones available on the gem market in all colours, shapes, sizes and types of cut. Colour is a personal preference and the market caters for all tastes.

The gold and silver used to make the products is of the highest quality. No filled gold, or plated gold product is used when making the jewellery. When a pendant is ordered without a solid gold chain, a gold plated display chain is used for mounting the pendant in the jewellery box for delivery. This is the only reference to plated gold.

Gemstone Guides

The Ruby Mill website contains a Gemstone Information Guide, to familiarise visitors with the properties of many varieties of gemstone. The guide covers most of the gemstones commonly used for jewellery.

A Gemstone Care Guide is also included, to advise on the suitable cleaning methods for many types of gemstone.

Company Details

Ruby Mill Limited is registered in England and Wales.

Company number:
Registered office address:
Ruby Mill Limited
20-22 Wenlock Road
N1 7GU
Telephone number:
0844 846 6290
Email address:
Business hours:
9.00 - 5.00 GMT, Monday - Friday

Thank you for visiting Ruby Mill Gemstone Jewellery.