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MointClair

Coeur Lumière

Coeur Lumière

Ring size

Coeur Lumière was conceived as a celebration of emotion translated into rarity. At its center, a 5.5-carat yellow diamond, cut in an exquisite heart shape, reveals a luminous intensity achieved only by stones of exceptional origin and chromatic purity.

The heart shape, among the most demanding cuts in high jewelry, was chosen to express symmetry, balance, and depth. Each facet is precisely aligned to preserve brilliance while allowing the diamond’s golden hue to unfold with warmth and vitality. Rather than excess, the color speaks in a language of refinement — radiant, controlled, and enduring.

Crafted in 18K white gold, the setting was designed to contrast and elevate the diamond’s natural glow. The cool tone of the metal creates a visual tension that enhances the stone’s luminosity, while the architectural lines of the band guide attention inward, anchoring the composition with quiet strength. Subtle diamond accents along the shoulders reinforce balance without competing for prominence.

Within Atelier Nivéra by MointClair, Coeur Lumière stands as a testament to mastery and intention. A creation reserved for those who understand that true luxury is found where rarity meets meaning — and where emotion is shaped into permanence.

This ring is not bound to time, fashion, or occasion. It is defined by legacy — a piece destined to endure as an heirloom of significance.

Product Details

  • Diamond: Yellow Diamond LGD
  • Cut: Heart Shape

Features:

  • Carat Weight: 5.5 ct
  • Metal: 18K White Gold
  • Category: High Jewelry / Haute Joaillerie
  • Creation: Handcrafted, one-of-a-kind

Craftsmanship

Coeur Lumière is defined by the emotional geometry of light. Conceived around the heart shape, each creation transforms sentiment into structure, balancing symbolism, brilliance, and proportion with refined discipline.

The diamond is carefully selected for symmetry and clarity, ensuring the heart silhouette remains pure and balanced. Cut with precise calibration, the facets are designed to guide light toward the center, allowing brilliance to radiate with depth and continuity.

Set by master artisans, the structure is crafted to support the stone with delicate strength, preserving the softness of the heart shape while ensuring structural integrity. The setting frames the diamond without excess, allowing light and form to remain uninterrupted.

Crafted in 18k gold and finished by hand, Coeur Lumière reflects the philosophy of Atelier Nivéra by MointClair — where craftsmanship transforms emotion into enduring luminosity.

Care Instructions

• Handle with care and remove before physical activity, impact, or exposure to abrasive surfaces.

• Avoid contact with chemicals, perfumes, cosmetics, chlorine, and household cleaning products, as they may affect the gold’s finish.

• Clean gently using lukewarm water, a mild soap, and a soft brush; dry with a lint-free cloth.

• Store separately in its original case or a soft pouch to prevent scratches and preserve brilliance.

• Periodic professional inspection is recommended to ensure the diamond’s security and maintain the integrity of the setting.

• When not worn, keep away from direct sunlight and excessive humidity.

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