Signature Lark & Berry design
Blackthorn Trinity Engagement Ring
All good things come in three's, which is especially true when it comes to our beautiful cultured diamonds.





Make this design your own
Begin with this made-to-order setting, then choose the centre diamond and refinements that make it yours. You approve the complete design, quotation and timing before anything is commissioned.
Signature Lark & Berry design
All good things come in three's, which is especially true when it comes to our beautiful cultured diamonds.
IGI or GIA grading report confirmed with your selected lab-grown diamond.
Made to your chosen size, with complimentary resizing up or down two sizes where the construction allows.
Lifetime warranty against manufacturing defects with valid proof of purchase, plus complimentary lifetime cleaning in store. Normal wear, accidental damage and misuse are excluded.
Read the warranty details →Specifications for this piece
Start with this setting or bring us a different direction. We will confirm the metal, proportions and what the displayed price includes.
Compare shapes, dimensions and diamond options with guidance. Certification and exact stone details are confirmed with the selected diamond.
Approve the final design, quotation and production timing before the workshop begins.
Need it sooner?
A two-week rush request may be considered, subject to design complexity, stone availability, workshop capacity and any applicable rush fee.
A detail just for you
Complimentary personal engraving available. Your wording and its suitability for this setting are confirmed before production.
Made-to-order terms
This ring is created to your confirmed size, metal and stone specification. Once production begins, it cannot normally be cancelled, exchanged or returned for a change of mind. Rights relating to faulty, misdescribed or non-conforming goods remain unaffected, as does the lifetime warranty for eligible manufacturing defects.
Jewellery concierge
Your enquiry will arrive with Blackthorn Trinity Engagement Ring already attached, so our jewellery team can answer with the right product, fit and availability in view.
Usually answered personally by the jewellery teamThe story of the piece
Discover the Lark & Berry Blackthorn Trinity Engagement Ring, a sophisticated three-stone ring crafted with cultured diamonds, perfect for proposals and commemorating significant milestones. This ring symbolizes past, present, and future, making it a deeply meaningful choice. It features ethical, sustainable lab-grown diamonds, and can be customised for each individual.
Crafted for enduring beauty and commitment, the Trinity setting showcases exceptional artistry. Each Lark & Berry cultured diamond boasts superior sparkle and clarity, ensuring a breath taking display. This luxurious engagement ring combines timeless elegance with modern, ethical values, providing a conflict-free and environmentally conscious option for your special moment.