All posts by Mark Johnson

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

The Average Price of an Engagement Ring in 2025

Engagement Rings
A selection of diamond sizes, showing comparisons from 0.50 carats upto 1 carat in weight.

Update: Serendipity Diamonds estimates the price of an engagement ring in 2025 to be £1500, based on the last 2 years’ sales, with Platinum 1-carat lab-grown diamond rings proving the most popular choice. “We surveyed ring purchases in the £600 to £10,000 price range over the last two years. The average cost of an engagement ring 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

The 585 Gold Stamp – What Does it Mean for Gold Jewellery

Jewellery Advice, , ,
585 Gold stamp

An item of jewellery stamped with the number 585 usually indicates that the piece is made from 14-carat Gold. But what is the significance of the number 585? These digits represent 58.5% gold content within an item of jewellery—consistent with all 14-carat Gold. Similarly, 18-carat gold which contains 75% gold, features a 750 stamp visible 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

How to Read the GIA Laser Inscription on Your Diamond

Diamonds
GIA laser inscription on diamond

What is a GIA laser inscription? Diamonds accompanied by GIA Diamond Dossiers® typically feature a micro-laser inscription on the edge of the diamond. This certificate number appears in microscopic digits of the side of the diamond. The diamond laser inscription identifies the diamond and connects it to a unique diamond grading report, also known as 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