Sena Jewellers

25/01/2026

With Gem-A – I just got recognised as one of their top fans! 🎉

19/01/2026

03/01/2026

25/12/2025

Enjoy your Festive Week to our ; all ....💥🤩❤️
25th December, 2025.
Stevenage Indoor Market


🌲💥🍀❤🌲💛☘️🌺🌲

19/11/2025

"Everyone is busy behind the scenes."

Full story in the comments 👇

21/10/2025

05/10/2025

04/09/2025

The birthstone for the month of September is the hugely popular sapphire 📘

Sapphire is a variety of the mineral corundum, a relatively abundant material composed of aluminium oxide. Corundum is hard, tough and stable. In fact, it is commonly used as an abrasive, think sandpaper or emery boards.

So why does it command such prices when it is placed in jewellery? When the corundum crystal grows in the earth, it may let in chemical impurities. These impurities have the potential to change the crystal’s colour. If it contains iron and titanium, it can appear blue.

If the environment in which the crystal started growing in the earth remains stable, it has the potential to develop into a large, clean and vibrant gem. These crystals are very rare, and rarity adds value. A big blue sapphire is a very valuable gem indeed.

Are you ready to learn more? Discover our GemIntro course that you can study online and in your own time: https://gemintro.gem-a.com/

📸 Hexagonal colour zoning in a blue sapphire, photographed by Gabriel Kleinberg.

13/07/2025

❤️ July birthdays incoming!

Did you know Ruby is the birthstone for July?

Pop by Sena Silver Jewellers and pick out the perfect ruby gift for someone special (or for yourself – we won’t tell!).