All posts by Mark Johnson

About Mark Johnson

My name is Mark and I'm founder at Serendipity Diamonds. I have 30 years or experience in polished diamonds and jewellery. Today, I work with an expert team in our Isle of Wight jewellery showroom located in Ryde. Most of my work involves helping clients in our showroom, working on our two websites and photographing jewellery commissions.

800 Gold Stamp – A Guide for Antique Gold Jewellery Buyers

Gold
800 Gold stamp on a jewellery link showing the hound with 800 digits below.

What does it mean and where to find it. The 800 Gold stamp indicates a gold item has a fineness of 80% gold or 800 grams of gold per 1000 grams of weight. It can be described as 19.2-carat Gold. The stamp originates from one of the three Portuguese Assay Offices—Porto, Lisbon and Gondomar. The Read the full article…

About Mark Johnson

My name is Mark and I'm founder at Serendipity Diamonds. I have 30 years or experience in polished diamonds and jewellery. Today, I work with an expert team in our Isle of Wight jewellery showroom located in Ryde. Most of my work involves helping clients in our showroom, working on our two websites and photographing jewellery commissions.

A Guide To September’s Birthstone – Sapphire

Birthstones, Sapphires, , ,
September birthstone

What is Sapphire?  Sapphire is the official birthstone for September and provides a fabulous gemstone for jewellery lovers. As you will see from our graphic below. Sapphire is the common name of Corundum. Sapphires and Rubies are both Corundum.However, the name Ruby is reserved specifically for the red colours of the precious gemstone.Secondly, the sapphire Read the full article…

About Mark Johnson

My name is Mark and I'm founder at Serendipity Diamonds. I have 30 years or experience in polished diamonds and jewellery. Today, I work with an expert team in our Isle of Wight jewellery showroom located in Ryde. Most of my work involves helping clients in our showroom, working on our two websites and photographing jewellery commissions.

2 Carat Diamond Rings – Magnificent Engagement Rings

Diamond Rings
4 Claw engagement ring Sancy

The Sancy four-claw engagement ring set with a 2-carat diamond A 2-carat diamond ring offers the wearer a true feeling of luxury—either from a 2-carat diamond or a 2-carat diamond set into jewellery. The difference sounds subtle but has a great impact on the price.  2 carat diamond rings vs 2 carats of diamonds in Read the full article…

About Mark Johnson

My name is Mark and I'm founder at Serendipity Diamonds. I have 30 years or experience in polished diamonds and jewellery. Today, I work with an expert team in our Isle of Wight jewellery showroom located in Ryde. Most of my work involves helping clients in our showroom, working on our two websites and photographing jewellery commissions.