Collection: Heart Diamond Necklaces

The heart pendant is the most personal shape in fine jewelry. It does not need an explanation, it does not go out of style and it works for every reason you would give someone a necklace, love, gratitude, a milestone or simply because you saw it and thought of them. A diamond heart necklace turns that shape into something that catches the light every time it moves, which is exactly why it remains one of the most requested pieces in the country year after year.

Heart Diamond Necklaces for Every Occasion

Our Heart Diamond Necklaces collection is built around brilliant, hand-selected moissanite in a classic round-cut, heart-shaped pendant setting and the look of a fine diamond heart necklace with fire and sparkle that holds up next to natural diamonds, at a price that makes it easy to say yes.

Moissanite Heart Pendant Necklace

Moissanite is the smart choice if you want a heart shaped diamond necklace with serious brilliance and none of the guilt over price. It's cut to maximize fire, it's more scratch-resistant than gold itself and worn as a heart pendant. The extra sparkle reads as intentional, not overstated. Our Moissanite Engagement Rings customers already know this stone performs; the same quality carries through to every heart necklace in this collection.

Round Cut Heart Pendant Design

Each pendant in this collection is finished with a round-cut center stone set into a heart silhouette, the design choice most gold diamond heart necklace shoppers gravitate toward because it keeps the heart shape clean and recognizable rather than broken up by faceting. It's the same reason the heart-shaped diamond necklace silhouette has stayed a top seller for decades: it photographs well, layers well and never needs an explanation.

Choosing Your Diamond Heart Necklace: Carat and Metal

For carat size, our 0.30 ct heart necklaces are the everyday-wear sweet spot, noticeable in the light without being heavy on the neckline, perfect as a first diamond heart pendant necklace or a milestone gift. Step up to our 0.50 ct heart necklace for a more statement-making presence, ideal for anniversaries or as a gift that's meant to be the main event.

Every heart diamond necklace in this collection is available in 14K white, yellow or rose gold, so you can match her existing jewelry or choose the tone that suits her skin tone best. White gold gives a cool, modern finish; yellow gold leans classic and warm; rose gold is the softest, most romantic of the three, our most requested metal for heart necklaces with diamonds.

The Perfect Gift, Any Time of Year

A diamond heart necklace is one of the few gifts that works for nearly every occasion on the calendar, an anniversary, Valentine's Day, a push present, a graduation or simply an "I was thinking of you." Its symbolism does the talking, which is why it remains one of the most gifted pieces of fine jewelry in the USA. Pair it with one of our Symbolic Pendants or layer it with a Solitaire Diamond Necklace for a personal, everyday stack.

FAQs

1. What is the difference between a diamond heart necklace and a heart-shaped diamond necklace? 

"Diamond heart necklace" describes a heart-shaped pendant set with diamonds or moissanite; "heart-shaped diamond necklace" more often refers to a necklace featuring an actual heart-cut diamond as the stone itself. Our collection uses brilliant round-cut moissanite set into a heart-shaped pendant, giving you the heart silhouette with maximum sparkle.

2. Is moissanite a good choice for a heart diamond necklace? 

Yes. Moissanite is extremely durable (9.25 on the Mohs scale, just below diamond), it's more brilliant than a diamond of the same size and it costs significantly less, so you can size up without stretching your budget. In a heart pendant setting, that extra fire makes the shape stand out even more.

3. What carat size is best for a diamond heart necklace? 

Most shoppers choose between 0.30 ct and 0.50 ct. A 0.30 ct heart pendant is subtle enough for daily wear, while 0.50 ct makes a stronger statement and photographs beautifully for special occasions. Neither size overwhelms the heart silhouette, since the shape itself does most of the visual work.

4. Do your gold diamond heart necklaces come in different karats and colors? 

Our heart diamond necklaces are crafted in 14K gold, available in white, yellow and rose gold. Each tone offers a slightly different look and wear characteristic and our team is happy to help you choose the best match for the recipient's existing jewelry.

5. Are diamond heart necklaces still in style in 2026? 

Very much so. The heart pendant is a classic-not-trendy shape, meaning it does not cycle in and out of fashion the way seasonal styles do. It's consistently one of the top-searched necklace styles in the US, especially heading into Valentine's Day, Mother's Day and anniversary season.

6. Can I layer a heart diamond necklace with other necklaces? 

Yes. A heart pendant on a shorter chain layers beautifully with a longer chain necklace or a delicate solitaire pendant. It's one of the easiest pieces to build a personal, everyday layered look around.

7. Do you offer vintage or antique-style diamond heart necklaces? 

Our current heart necklace collection focuses on modern moissanite heart pendants rather than vintage-inspired settings. If you are drawn to an antique look, our team can help source or custom-design a heart pendant with vintage detailing, just reach out and we will walk you through the options.

Shop with Confidence

Every heart diamond necklace ships fully insured with detailed photography and honest sizing so you know exactly what you are getting. We offer free shipping on US orders $100+, a certified grading report with every order, a lifetime service warranty and an easy return window.