Certified Excellence

Every Mon Serment diamond is independently certified by IGI or GIA at a minimum standard of F colour, VS1 clarity.

Each piece is delivered with the official IGI or GIA stone grading certificate.

The Luna Round

£1,949.00
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The Luna Round pairs the enduring brilliance of a round-cut lab-grown diamond with a refined hidden-halo basket setting.

From above, the design reads as a clean, elegant solitaire. From the side, the floral-inspired basket reveals an additional circle of diamonds, adding discreet sparkle without making the ring feel heavy or ornate.

  • Centre stone: certified lab-grown diamond
  • Diamond grading: IGI or GIA certificate included
  • Quality standard: E–F colour, VS1 clarity
  • Cut: Excellent or Ideal
  • Metal: solid 18ct white or yellow gold
  • Setting: hidden-halo basket solitaire
  • Diamond shape: round brilliant
  • Made to order in our Dubai atelier
  • Lifetime servicing included
  • Presented in a Mon Serment heirloom box

Made for you. Select your preferred gold, ring size and carat weight. Final pricing reflects the exact diamond selected for your ring.

For guidance on stone selection, sizing or delivery, contact us for a private consultation before ordering.

The Mon Serment Standard

When will my purchased product arrive?

Every Mon Serment product is made to order. Nothing sits on a shelf waiting. The moment you place an order, our master jewellers in Dubai begin work on your stone setting, your metal, your size.

From forge to your door takes around 3-4 weeks— long enough to do it properly, short enough that your loved one will wear it the same season you chose it.

How do I know my diamond is what you say it is?

Every Mon Serment diamond arrives with an independent certificate from IGI or GIA — the two laboratories trusted across the industry.

The certificate lists carat, cut, colour, clarity, and a unique laser inscription on the diamond's girdle. We never grade our own stones.

What is your standard for cut, colour and clarity?

Our default is F colour, VS1 clarity, Excellent cut— what most jewellers would call "ideal" without crossing into the diminishing-returns range above. Higher grades (D/E colour, VVS clarity) are available on request, but we won't push them on you if you don't need them.

Why does cut matter more than carat?

Carat is weight on a scale. Cut decides how the diamond catches light. A poorly cut 1.2ct stone looks duller than a beautifully cut 0.9ct. We only set diamonds graded Excellent or Ideal in cut — anything below dims the fire. Size without cut is just stone.

What clarity should I actually pay for?

Beyond VS1, the differences are invisible to the naked eye. We do not charge a premium for grades you cannot see. Every Mon Serment diamond is eye-clean, certified, and chosen for brilliance — not paper specs you'll never notice.