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Lab-Grown Heart Cut Diamonds: The Complete Guide
A heart cut lab-grown diamond is a brilliant-cut stone shaped into a symmetrical heart, prized for its romantic character and lively brilliance. Its classic length-to-width ratio is around 1.00, with two rounded lobes meeting a defined cleft above a clean point. At CRTD, every stone is independently certified at VS1 minimum, from $1,190 AUD (1ct VS1).
Overview
The Heart diamond is an enduring symbol of love and romance, crafted to evoke strong emotions through its unmistakable shape. This cut is designed to express passion, with its distinctive form serving as a powerful emblem of affection. The heart’s balanced curves and pointed cleft combine to create a visually arresting design that is both delicate and dramatic. Its inherent symbolism makes it an ideal choice for sentimental jewellery, especially pieces intended to mark special, heartfelt occasions.
Origin and development
Historically, the heart shape has long been associated with matters of the heart and has appeared in art and jewellery for centuries. Its evolution from early handcrafted designs to modern, precision-cut stones reflects the timeless nature of love and sentiment. Today, the heart diamond continues to be a cherished choice for engagement rings, pendants, and other keepsake jewellery, carrying forward a legacy of romance and personal expression that spans generations.
How the heart cut is shaped
The heart cut is meticulously crafted with a smooth, rounded top that gently curves inward to meet at a singular point, forming a perfect representation of a heart. Its facets are arranged to maximise the interplay between light and shadow, ensuring that the diamond sparkles from every angle. The overall design is balanced, with soft transitions that create an elegant yet unmistakably romantic silhouette. The refined curves and well-proportioned shape work together to deliver a visually captivating diamond that resonates with emotional depth and style.
Why choose a heart cut
Heart-shaped diamonds captivate with their intricate blend of soft curves and a pointed base, creating a silhouette that exudes both tenderness and boldness. The cut is engineered to enhance sparkle and reflect light in a way that highlights its romantic contours. This design not only symbolizes enduring love but also provides a unique aesthetic that stands apart from traditional shapes. The heart shape’s inherent charm makes it particularly appealing for bespoke pieces, celebrating personal milestones and cherished moments.
What to look for when buying
Prioritise cut quality first: it drives the light return that makes the stone come alive. We screen proportions, polish and symmetry before a stone is ever shortlisted. Every CRTD stone is independently certified by IGI or GIA at a VS1 minimum clarity.
Price
Lab-grown heart cut diamonds at CRTD start at $1190 AUD for a one carat stone, with AU-inclusive pricing, the number you see is the number you pay. Larger carats and higher clarity grades are priced transparently across the range.
Choosing well
A heart cut stands or falls on symmetry: the two lobes must mirror each other, the cleft between them needs to be sharp and well defined, and the point should sit cleanly centred. Because the point and cleft are the most exposed areas, ask your setter to protect them, typically with a five-prong or V-tip mount, so the shape stays crisp and the stone is held securely for everyday wear.
Sourced to your brief
We do not hold a wall of inventory. Tell us your brief and our atelier shortlists certified heart cut stones to match, each with full IGI or GIA paperwork. See how we source.
Common questions
What is the ideal length-to-width ratio for a heart cut diamond?
A length-to-width ratio of around 1.00 is the classic target, giving a balanced heart that reads clearly as the shape it is. The two lobes should be evenly rounded and symmetrical, with a sharp, defined cleft between them. Some personal preference is reasonable, though strong lobe symmetry matters more than chasing an exact figure.
Is a heart cut diamond durable enough for everyday wear?
Yes, with thoughtful setting. The point and the cleft are the most exposed areas of a heart cut, so they need careful protection, usually a V-tip prong over the point and secure prongs at the lobes. Set this way, a heart cut lab-grown diamond wears well day to day. Every CRTD stone is certified at VS1 minimum clarity.
How much does a heart cut lab-grown diamond cost at CRTD?
Heart cut lab-grown diamonds start from $1,190 AUD for a 1ct VS1 stone, with pricing AU-inclusive. Larger carats and higher clarity grades cost more. Every stone is sourced to order and independently certified by IGI or GIA at a VS1 minimum, so you can compare value with confidence across sizes.