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We’re celebrating your unique love story.

We believe your engagement ring is more than just jewellery; it should symbolise the journey you and your partner have shared.
 

Your love story is one-of-a-kind, filled with moments that deserve to be honored uniquely.
 

LM-K custom engagement rings begin with you - your memories, you and your partner’s style, and the essence of what makes your relationship so special.
 

We’re here to help transform those cherished memories into a timeless heirloom, as meaningful and durable as it is beautiful.​

Sketched on the back of an envelope.

After a less than perfect ring purchase, our founder Lydia M-K (pictured) designed a replacement ring on the back of an envelope.

 

She wanted to create a true heirloom - something beautiful to serve as a time-machine of their youth. 

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A professional background in corporate mining helped with making those first connections in the diamond world, and LM-K was born.

 

Today, LM-K creates her unique designs in London before they are handcrafted by specialist artisans using ethically sourced, premium materials.

 

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bespoke engagement ring designer lydia mccarthy-keen's (lmk) wedding.webp

Custom made engagement rings which connect you.

LM-K's rings are designed to be tough, yet timeless, feminine, and deeply meaningful - a true heirloom crafted from heritage materials.

 

Commissioning a bespoke engagement ring inspired by your shared journey together is a wonderful opportunity to celebrate your love, where every detail is personalised to you.​

The power of 'The One'.

We believe there is only one engagement ring - the one that tells your unique love story.

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From the moment you propose to the day your ring is passed down through generations, it should be more than a symbol.

 

It should reflect the bond that connects you, serving as a reminder of your journey and an invitation to grow together. Through every moment, it will inspire you to cherish the love and joy that lies ahead.

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Start Your Story
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