Marquise Cut Lab Grown Diamond Hidden Halo Engagement Ring | Madrid Spark

Unveil an extraordinary celebration of royal grandeur, modern high-fashion architecture, and maximum diamond fire with the Madrid Spark Lab Grown Diamond Engagement Ring by Jewel Nests. Meticulously handcrafted for those who demand an unmissable, luxurious statement piece, this signature design pairs a floral-inspired crown with a substantial, light-filled pavé band.

The defining characteristic of this engagement ring is its 6-prong lotus-style basket setting with a hidden halo paired with a bold U-prong diamond band. A magnificent marquise-cut center diamond is cradled securely within six sculpted claw prongs that bloom upward like lotus petals. Nestled discreetly around the under-gallery is a shimmering hidden halo of micro-pavé diamonds, resting atop a commanding 3.0 mm band featuring substantial round brilliant lab-grown diamonds in open U-prong settings.

Center Stone Details
Diamond Shape: Marquise Cut (Sleek elongated brilliant faceting)

Carat Weight Variations: Available from 1.0 CT to 4.0 Carats (Listed variant is 2.50 Carats)

Quality Grade: VVS2 Clarity, E / F Color (Elite Colorless Grade)

Certification: IGI Certified

Setting Style: Modern 6-Prong Lotus Style Basket with Hidden Halo Collar

Side Stone & Band Details
Side Stone Type: Round Brilliant Cut (Lab-Grown)

Total Side Carat Weight: Approximately 1.50 CT combined accent weight (Includes hidden halo and U-prong band)

Quality Grade: VS - VVS Clarity, E / F Color

Band Width: 3.0 mm

Band Setting Style: Open-Profile U-Prong Setting

Finish: High-Polish Mirror Finish

Product Highlights
Architectural 6-Prong Lotus Basket: The Madrid Spark elevates traditional settings with six organically sculpted prongs inspired by blooming lotus petals. This protective configuration guards both delicate points and side curves of the marquise centerpiece while maximizing light entry.

Enchanting Hidden Halo Rim: Tucked intimately beneath the central girdle sits a delicate ribbon of micro-pavé diamonds. Invisible from a direct top view, this hidden halo catches profile light to add a subtle layer of extra brilliance.

Bold 3.0 mm U-Prong Pavé Band: Showcasing a total accent weight of 1.50 carats, the substantial band features large round brilliant lab-grown diamonds held in open-profile U-prongs. This specialized setting minimizes metal visibility from the side, allowing light to flood through the diamonds for maximum fire.

Lower-Profile Ergonomic Balance: Built close to the finger, the lower-profile setting keeps the grand marquise centerpiece stable and comfortable on the hand despite its impressive carat size.

Elite Colorless Scintillation: Every lab-grown diamond is hand-selected exclusively from top-tier E/F color and sharp VS - VVS clarity tiers, ensuring a flawlessly uniform, ice-white sparkle across both the main gem and accent band.

Ethical Canadian Craftsmanship: Proudly handcrafted in our Toronto studio using premium gold and platinum. Every diamond is entirely conflict-free, sustainably grown, and certified.

Customization Note: We can customize the precious metal specifications, adjust the band width, or adapt the lotus basket to hold alternative stone shapes such as oval, pear, or emerald cuts. Contact us for bespoke engagement ring modifications.

Premium Metal Options: Available in Platinum and 14K & 18K Gold (Yellow, White, and Rose). 10K Gold is available upon request for a custom quote.

Handcrafted in Canada: Each Jewel Nests ring is a proudly handcrafted product, finished with precision in our Toronto studio using premium gold to ensure a luxurious comfort-fit interior. We offer worldwide shipping to deliver our designs right to your door.

Why Choose Jewel Nests?

We believe in luxury that aligns with your values. Handcrafted locally with premium sustainable materials, we pair exceptional Canadian craftsmanship with a global purpose. To honor your unique love story, Jewel Nests proudly serves one meal to a child in need for every single order placed.

We offer free complimentary express shipping worldwide, with delivery typically within 1–8 business days, depending on the destination. Every order is securely packed and fully insured for peace of mind.

For faster delivery, we also provide paid express priority overnight shipping upon request, with delivery in 1–2 business days. Please contact our team directly to arrange priority shipping and we’ll ensure your order is prioritized accordingly.

Jewel Nests offers a 30-day return and exchange policy for eligible items. Products must be unworn, unused, and returned in original packaging with certificates. We provide a no restocking fee and no questions asked process for eligible returns. Custom, resized, or engraved pieces may not be eligible for return, but we always aim to ensure a smooth and supportive experience for every customer.