Category Archives: Precious Metals

What Does a 375 Gold Stamp Mean? (9ct Gold Hallmark Guide)

Precious Metals
375 Gold Symbol on Face of Ring

If you’ve noticed a “375” stamp inside a ring or piece of jewellery, this guide explains exactly what it means, how it compares to other gold purities, and how to check if it’s genuine. What Does 375 Mean on Gold? (Quick Answer) A 375 gold stamp means the item is made from 9-carat gold, containing Read the full article…

About Mark Johnson

Mark founded Isle of Wight jewellers Serendipity Diamonds in 2007 after a career on the polished diamonds industry. Today he works in the Serendipity showroom, helping clients with jewellery, creating handmade designs and updating their two jewellery websites SerendipityDiamonds.com and Isle-of-Wight-Jewellery.co.uk

Upgrading from 18ct White Gold to Platinum Jewellery in 2026

Precious Metals, ,
Upgrading from white gold to platinum

How can I upgrade from 18ct Gold to Platinum? This is not something you should feel is necessary. 18ct Gold is a beautiful metal and remains very popular for engagement rings and wedding rings. However, many consumers have decided to replace jewellery by redesigning items made in platinum. What is the cost of changing a Read the full article…

About Mark Johnson

Mark founded Isle of Wight jewellers Serendipity Diamonds in 2007 after a career on the polished diamonds industry. Today he works in the Serendipity showroom, helping clients with jewellery, creating handmade designs and updating their two jewellery websites SerendipityDiamonds.com and Isle-of-Wight-Jewellery.co.uk

Does Platinum Scratch? How Durable is Platinum for Jewellery?

Precious Metals
Does platinum scratch?

Does Platinum scratch? Platinum scratches over time despite its cost and luxurious reputation. This natural wear occurs across all precious metals, including Platinum, Palladium, and Gold. Like all precious metals, small scratches appear from the first day of wearing any jewellery item—especially those items worn on the hand—exposed to greater wear and tear. This remains Read the full article…

About Mark Johnson

Mark founded Isle of Wight jewellers Serendipity Diamonds in 2007 after a career on the polished diamonds industry. Today he works in the Serendipity showroom, helping clients with jewellery, creating handmade designs and updating their two jewellery websites SerendipityDiamonds.com and Isle-of-Wight-Jewellery.co.uk