Jewellery Knowledge Centre

Straightforward guides to precious metals, hallmarks, diamonds, gemstones and how jewellery is made.

Knowledge Built Through Generations

Jewellery is much easier to buy, sell and care for when you understand what you are looking at. Our Jewellery Knowledge Centre brings together practical information that customers ask us about every day – from gold purity and UK hallmarks to diamond certificates, gemstones and the manufacturing process.

Gold Factory is a four-generation jewellery business. Our aim here is not to overwhelm you with technical language, but to explain the things that genuinely help you make better decisions.

Precious Metals

Understanding Gold
Gold Purity Explained
Gold Colours: Yellow, White and Rose
How Gold Jewellery Prices Are Calculated
Understanding Silver
Understanding Platinum

Hallmarking

Diamonds

Gemstones and Jewellery Making

Gemstone Guide
Birthstones
Astrology Stones
How Jewellery Is Made
From Idea to CAD
Casting
Stone Setting
Polishing and Finishing
Behind Our Workshop

Frequently Asked Questions

Is this information only for Gold Factory customers?

No. The guides are intended to help anyone understand jewellery, although product availability and Gold Factory services are naturally specific to us.

Can I rely on a guide instead of having my jewellery inspected?

No. Guides explain general principles. An actual item can differ because of construction, repairs, stones, age, origin or hallmarking history.

Do you sell the metals and diamonds covered here?

We sell gold in several purities as well as silver, platinum, natural diamonds and laboratory-grown diamonds, subject to stock.

Ask Gold Factory

If you would like help applying any of this information to a real piece of jewellery, visit us at 294 Farnham Road, Slough, SL1 4XL, call 01753 536800 or contact us through www.goldfactory.co.uk. Jewellery can vary, so our team can explain the options for the actual item you are considering.