Here, at Mari Thomas, you will find her contemporary, individual and unique jewellery in gold and silver sparklingly embellished and enhanced with carefully sourced and selected conflict free diamonds.

We can design and create bespoke commissions for that special someone, or that special day, or maybe add some sparkle to an existing piece to give it that extra something.

Designed and made in Wales UK

MT Diamond Jewellery

20 products

£
£
Last Chance: Llawennau / Rejoice Long Silver Pendant with Diamonds
£455.00
£455.00
One of a kind: Golden Bubbles pendant set with diamonds
£11,700.00
£11,700.00
Solitaire: Black Silver bangle with Diamond
£950.00
£950.00
One of a Kind: ( No.16 ) Bespoke Dadeni Silver and Diamond Neckpiece
£2,900.00
£2,900.00
NEW
One of a Kind: (No. 13) Bespoke Carthenni Silver Pendant with Natural Yellow Diamonds
£2,700.00
£2,700.00
SOLD OUT
One of a Kind: (No. 14) Bespoke Silver Glissando pendant with Triangular Diamond
£650.00
£650.00
SOLD OUT
One of a Kind: ( No.18 ) Bespoke Carreg necklace / brooch in silver with baguette cut diamond
£1,990.00
£1,990.00
SOLD OUT
One-of-a-Kind: (No.3) Bespoke Cofio Pendant in Silver with Emerald Cut Diamond
£685.00
£685.00
SOLD OUT
One of a Kind: (No 1.) Bespoke Silver and Diamond Bubbles Necklace - Mari Thomas Jewellery
One of a Kind: (No 1.) Bespoke Silver and Diamond Bubbles Necklace
£995.00
£995.00
SOLD OUT
One of a Kind: (No. 11) Cube Pendant with Assher Cut Diamond
£1,550.00
£1,550.00
SOLD OUT
One of a Kind: (No. 10) Bespoke Gyda'n Gilydd Silver Pendant with Marquise Diamond
£985.00
£985.00
SOLD OUT
One of a Kind: (No. 12) Bespoke Carved Silver earrings with diamonds
£995.00
£995.00
SOLD OUT
One of a Kind: (No 2.) Bespoke Carved Ring in Silver and Diamonds - Mari Thomas Jewellery
One of a Kind: (No 2.) Bespoke Carved Ring in Silver and Diamonds
£550.00
£550.00
SOLD OUT
One of a Kind: (No. 9) Solitaire Series 2 Necklace with Princess Cut Diamond
£1,295.00
£1,295.00
SOLD OUT
One of a Kind: (No. 8) Bespoke Decorative Concepts Silver Pendant with Oval Diamond
£995.00
£995.00
SOLD OUT
One of a Kind: (No. 5) Bespoke Dathlu Silver Pendant with Old Cut Diamonds
£850.00
£850.00
SOLD OUT
One of a Kind: (No 4.) Solitaire Necklace with Round Brilliant Cut Diamond
£895.00
£895.00
SOLD OUT
One of a Kind: (No 6.) Bespoke Memo Pendant with Rose Cut Diamond.
£685.00
£685.00
SOLD OUT
One of a Kind: (No. 7) Brushstrokes Pendant with black diamonds
£950.00
£950.00
SOLD OUT
One of a Kind: ( No.17 ) Bespoke Linear torque bangle with baguette cut diamonds
£1,700.00
£1,700.00
+44 (0) 1558 660001
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