I've spent more than thirty years in the world of jewellery, from my college and university days onward, and more than twenty-eight of them running my own business. In that time I've created over twenty-five collections, along with several limited editions and countless one-off and commissioned pieces.

I don't design to trends. I'd rather make jewellery with stories and meaning, pieces with a timeless beauty, made to be worn now and to become heirlooms, treasured for generations to come.

You can see all my current collections here, and if you're ever able, I'd love you to visit us in our gorgeous gallery in Llandeilo, south-west Wales, where you can see the collections in their full beauty and try pieces on to see how they feel.

Mari Thomas Collections

306 products

SOLD OUT
Brushstroke earrings, sterling silver — fluid line inspired by a single sweep of paint — Clustdlysau Arian
Mari Thomas Jewellery Brushstroke: Curved Earrings
£135.00
£135.00
Contemporary Welsh silver jewellery. Inspired by the beautiful landscape of Wales. This ring is perfect for a wedding ring both for men and women. Designed and handmade in Wales
Mari Thomas Jewellery *NEW* Carved: Narrow Silver Ring
£125.00
£125.00
White 8mm round freshwater pearl stud earrings - Mari Thomas Jewellery
Mari Thomas Jewellery White 7-7.5mm round freshwater pearl stud earrings
£77.00
£77.00
SOLD OUT
Round 8mm Pink Pearl Pendant - Mari Thomas Jewellery
Mari Thomas Jewellery Round 8-8.5mm pink pearl pendant
£150.00
£150.00
SOLD OUT
White 9mm Freshwater Teardrop Pearl Pendant - Mari Thomas Jewellery
Mari Thomas Jewellery White 9mm freshwater teardrop pearl pendant
£112.00
£112.00
Caernarfon hatch medium pendant, sterling silver — the weave given more room to speak — Mwclis Arian
Mari Thomas Jewellery Carthenni Silhouette: Caernarfon Hatch Design - Medium silver pendant
£390.00
£390.00
Mari Thomas Jewellery Linear: Long Silver Pendant
£180.00
£180.00
Mari Thomas Jewellery Linear: Medium Silver Earrings
£145.00
£145.00
Pink 7mm Freshwater Teardrop Pearl Crook Earrings - Mari Thomas Jewellery
Mari Thomas Jewellery Pink 7.5mm freshwater teardrop pearl drop earrings
£80.00
£80.00
White 7mm Freshwater Teardrop Pearl Crook Earrings - Mari Thomas Jewellery
Mari Thomas Jewellery White 7.5mm freshwater teardrop pearl drop earrings
£80.00
£80.00
Cofio pendant, silver and 18ct gold plated silver — Waldo Williams's words cast in metal — Mwclis Arian ac Aur
Mari Thomas Jewellery Cofio / Remember: Gold and Silver Pendant
£290.00
£290.00
Mari Thomas Jewellery Dathlu / Celebration: Short Drop Silver Earrings
£210.00
£210.00
SOLD OUT
Cofio / Remember: Silver Cufflinks - Mari Thomas Jewellery
Mari Thomas Jewellery Cofio / Remember: Silver Cufflinks
£230.00
£230.00
Brushstroke large pendant, sterling silver — a bold sweep of paint cast in metal — Mwclis Arian
Mari Thomas Jewellery Brushstroke: Large Silver Pendant
£320.00
£320.00
Cofio bangle, silver and 18ct gold plated silver — Waldo Williams's words cast in metal — Breichled Arian ac Aur
Mari Thomas Jewellery Cofio / Remember: Gold and Silver Bangle
£590.00
£590.00
Cofio pendant, black oxidised silver — Waldo Williams's words cast in metal — Mwclis Arian
Mari Thomas Jewellery Cofio / Remember: Black Silver Pendant
£240.00
£240.00
Caernarfon hatch earrings, side view of the sterling silver weave — Clustdlysau Arian
Mari Thomas Jewellery Carthenni Silhouette: Caernarfon Hatch Design - Silver earrings
£180.00
£180.00
Mari Thomas Jewellery Glissando: Small Silver Pendant
£140.00
£140.00
Carreg / Stone: Small Silver Pendant - Mari Thomas Jewellery
Mari Thomas Jewellery Last chance: Carreg / Stone: Small Silver Pendant
£195.00
£195.00
Cofio / Remember: Long Silver Earrings - Mari Thomas Jewellery
Mari Thomas Jewellery Cofio / Remember: Long Silver Earrings
£230.00
£230.00
Mari Thomas Jewellery Carved: Rectangular Silver Cufflinks
£185.00
£185.00
Caernarfon hatch pendant, sterling silver — the Carthenni weave held close at the throat — Mwclis Arian
Mari Thomas Jewellery Carthenni Silhouette: Caernarfon Hatch Design - Small silver pendant
£190.00
£190.00
Contemporary Welsh gold and silver jewellery designed and made in Wales and inspired by the Welsh landscape. These earrings are inspired by the Welsh poem Cofio meaning remember by Waldo Williams handcrafted in solid silver with 18ct gold plating.
Mari Thomas Jewellery Cube: Gold and Silver Stud Earrings
£150.00
£150.00
Decorative Concepts pendant, 18ct rose gold plated silver — a mark drawn from Mari's own sketchbook — Mwclis Arian ac Aur
Mari Thomas Jewellery Decorative Concepts: Rose Gold Small Pendant
£227.00
£227.00
Cube: Silver Long Arc Earrings - Mari Thomas Jewellery
Mari Thomas Jewellery Cube: Silver Long Arc Earrings
£180.00
£180.00
Decorative Concepts ring top, a bold pencil mark cast in sterling silver — Modrwy Arian
Mari Thomas Jewellery Decorative Concepts: Medium Top Silver Ring
from £95.00
from £95.00
Contemporary Welsh silver jewellery. Inspired by the beautiful landscape of Wales. These square textured stud earrings are designed and handmade in Wales
Mari Thomas Jewellery Carved: Square Silver Earrings
£145.00
£145.00
SOLD OUT
Brushstroke full arc earrings, sterling silver — the full sweep of a single painted line — Clustdlysau Arian
Mari Thomas Jewellery Brushstroke: Silver Earrings
£240.00
£240.00
SOLD OUT
Mari Thomas Jewellery Memo: Silver Paperclip Earrings
£48.00
£48.00
Mari Thomas Jewellery Gyda'n Gilydd / Together: Silver Cufflinks
£195.00
£195.00
Caernarfon long bracelet, sterling silver — the Welsh weave stretched into a linear form — Breichled Arian
Mari Thomas Jewellery Carthenni Silhouette: Caernarfon Long Design - Silver bracelet
£230.00
£230.00
Cube: Silver 3 Cube, Stacker Bangle - Mari Thomas Jewellery
Mari Thomas Jewellery Cube: Silver 3 Cube, Stacker Bangle
£450.00
£450.00
Cube: 1 Cube Silver Stacker Bangle - Mari Thomas Jewellery
Mari Thomas Jewellery Cube: Single Cube Silver Stacker Bangle
£340.00
£340.00
Mari Thomas Jewellery Carved: Silver Rectangle earrings
£185.00
£185.00
Sterling silver charm bracelet, hand-engraved with a Welsh word — Cariad (love) or Dathlu (celebration) — front view — Breichled Arian
Mari Thomas Jewellery Cariad / Love: Silver Charm Bracelet
£195.00
£195.00
Contemporary Welsh silver jewellery. Inspired by the beautiful landscape of Wales. These small textured rectangular stud earrings are designed and handmade in Wales
Mari Thomas Jewellery *NEW* Carved: Small silver rectangle stud earrings
£97.00
£97.00
Cofio ring, silver and 18ct gold plated silver — Waldo Williams's words cast in metal — Modrwy Arian ac Aur
Mari Thomas Jewellery Cofio / Remember: Gold and Silver Ring
£350.00
£350.00
Mari Thomas Jewellery Cube: Black Silver Stud Earrings
£110.00
£110.00
Decorative Concepts medium pendant, black oxidised silver — a mark drawn from a sketchbook page — Mwclis Arian
Mari Thomas Jewellery Decorative Concepts: Medium Black Silver Pendant
£325.00
£325.00
Large Silk Scarf - Limited Collection - Mari Thomas Jewellery
Mari Thomas Jewellery Limited Edition: Large Silk Scarf
£195.00
£195.00
SOLD OUT
Mari Thomas Jewellery Glissando: Medium Silver Pendant
£165.00
£165.00
Brushstroke bracelet, sterling silver — a fluid line held close to the skin — Breichled Arian
Mari Thomas Jewellery Brushstroke: Silver Bracelet
£195.00
£195.00
Bubbles cufflinks, sterling silver — clustered circles inspired by rising champagne bubbles — Botymau Coesau Arian
Mari Thomas Jewellery Bubbles: Silver Cufflinks
£195.00
£195.00
Mari Thomas Jewellery *NEW* Small carved silver pendant
£125.00
£125.00
SOLD OUT
Mari Thomas Jewellery Pages: Silver Bracelet
£210.00
£210.00
Mari Thomas Jewellery Pages: Silver Stud Earrings
£130.00
£130.00
Carthenni cross pendant, sterling silver — a simpler, graphic take on the Welsh blanket weave — Mwclis Arian
Mari Thomas Jewellery Carthenni Silhouette: Solid silver cross pendant
£145.00
£145.00
Mari Thomas Jewellery Pages: Large Silver Pendant
£220.00
£220.00
Round 8mm White Pearl Pendant - Mari Thomas Jewellery
Mari Thomas Jewellery White 8-8.5mm round pearl pendant
£150.00
£150.00
White 9mm Freshwater Teardrop Pearl Crook Earrings - Mari Thomas Jewellery
Mari Thomas Jewellery White 9mm freshwater teardrop pearl drop earrings
£106.00
£106.00
+44 (0) 1558 660001
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