Elegant Marquise Cut Lab Diamond Engagement Ring

The marquise cut stands out with its striking, elongated shape that creates the illusion of longer, slimmer fingers. But when that marquise is a lab diamond? You’re getting double the wow factor—elegance with a modern, ethical twist. Lab-grown marquise diamonds offer the same dazzling brilliance as mined ones but without the hefty environmental toll. The cut itself also maximises surface area, meaning your 1.00ct stone looks even bigger. So you’re getting more sparkle, a bolder silhouette, and a conscious choice that speaks volumes—all in one show-stopping gem.

Short answer? There’s no difference in beauty or quality. Lab diamonds are real diamonds—same chemical structure, same brilliance, same durability. The only distinction is where they come from: above ground rather than beneath it. Lab diamonds are created in high-tech labs under conditions that replicate how natural diamonds form. They’re also more sustainable and typically more affordable, letting you get a higher grade stone for your budget. If ethics and value matter to you, a lab diamond is a no-brainer.

Absolutely! Sentimental value comes from what the ring represents—your love, your commitment, your journey—not where the diamond was formed. A lab diamond engagement ring still marks a deeply personal moment. In fact, many couples today choose lab-grown stones precisely because they reflect shared values like sustainability and conscious living. Plus, when you design or choose a ring together, it becomes a unique symbol of your story, not just a pretty stone.

Yes—and it’s a style-savvy one too! The marquise cut is sleek yet bold, and its pointed tips add flair without sacrificing wearability. To protect the tips (the most vulnerable part), our rings are crafted with secure, elegant prongs that offer both beauty and durability. As with any fine jewellery, it’s best to avoid heavy impact and store it carefully. But if you’re looking for something that catches the eye and complements a variety of styles, marquise cut delivers on all fronts.

While lab diamonds generally don’t appreciate in value the same way some rare mined diamonds might, they offer immense emotional and ethical value. Their affordability also means you can invest in a higher quality stone without overspending. If resale or heirloom potential is important to you, pairing the diamond with a luxurious setting—like 18kt gold—helps elevate the overall piece. Still, most people buy engagement rings for love, not resale, and in that sense, a lab diamond holds lifelong worth.

Yes, customisation is one of the things we do best at Ernesto Buono Fine Jewellery. Whether you want to tweak the metal colour, adjust the band style, or even choose a different lab diamond size or clarity, we’ll help you bring your vision to life. Book a one-on-one appointment with our team and explore all the options in a relaxed, boutique setting. Book an appointment today and let’s design something unforgettable together.