Gold Heart Pendants: Diamond, Ruby and Black Diamond Styles
Posted by YANIV SEGAL

A gold heart pendant is one of the few pieces that works for almost any occasion, from an anniversary to a first piece of fine jewelry. Choose the stone for meaning and mood: white diamond for classic sparkle, ruby for passion, black diamond for edge, and sapphire for a regal, vintage feel. Then pick the gold color that matches what she already wears.

Which stone should a gold heart pendant have?
The heart shape carries the message on its own. The stone sets the tone.
White diamond is timeless and goes with everything. Ruby turns the heart into a red, unmistakable symbol of love. Black diamond feels modern and a little rebellious. Sapphire, especially in a vintage frame, reads as heirloom.
| Stone | Look | Hardness (Mohs) | Example price |
|---|---|---|---|
| White diamond | Classic sparkle, pairs with any outfit | 10 | See our heart pendant collection |
| Ruby | Deep red, the most romantic choice | 9 | Heart Ruby Necklace - Noelle No. 55 and No. 56, from $2,744 |
| Black diamond | Dark, graphic and modern | 10 | See our heart pendant collection |
| Blue sapphire | Regal blue, vintage character | 9 | Heart Sapphire Royal Vintage Gold Necklace - Gia No. 74 and No. 75, from $11,984 |
All four stones are hard enough for daily wear on a pendant, which takes far fewer knocks than a ring. Our black diamonds are natural and color-enhanced.
For darker styles in more shapes, see our black diamond necklaces and pendants guide.
Yellow, rose or white gold for a heart necklace?
Start with the jewelry she wears every day. If her rings and earrings are warm-toned, yellow or rose gold will feel familiar. If she wears mostly silver-tone pieces, white gold fits in.
Stone color matters too. Rose gold flatters a ruby and gives it a soft, romantic frame. Yellow gold makes the red look richer and more traditional.

White diamonds look crisp in white gold and warm in yellow gold. Black diamonds create the strongest contrast against yellow or rose gold.
How big is a heart pendant stone?
Heart stones are measured across the face. These sizes come from the stone options on our product pages.
| Carat | Face size | Look on a chain |
|---|---|---|
| 0.5 ct | 5 mm | Delicate, everyday |
| 1 ct | 6.5 mm | Clearly a heart from across a room |
| 1.5 ct | 7.3 mm | Noticeable statement |
| 2 ct | 8 mm | Bold, special occasion |
A heart needs enough size for the shape to read. Around 1 carat, the lobes and point are easy to see without the piece feeling heavy.
The same chart applies to heart rings. If you are building a matching set, our heart shaped rings guide compares ruby, diamond and tanzanite hearts.
What occasions suit a heart pendant?
- Anniversaries: a ruby heart is a natural choice for a milestone year.
- Valentine's Day: the most classic heart gift there is.
- Birthdays: ruby is the July birthstone and sapphire the September birthstone.
- A new mother: a small diamond heart she can wear every day.
- Graduations and first fine jewelry: a simple heart in gold that grows with her.
Free engraving is one of our standard policies. Tell us the date or initials you have in mind, and we will confirm what fits the piece you choose.
Vintage heart pendants: the sapphire option
Not every heart has to be minimal. Our Gia designs set a heart sapphire in a royal, vintage-style gold frame for a piece that feels inherited rather than bought.

This style suits someone who already owns simple pieces and wants one necklace with presence. It is a gift for a big moment.
Heart pendant alone or as a set?
A single pendant is the easiest gift to get right, because there is no ring size to guess. It is also the piece she is most likely to wear daily.
If you want a bigger gesture, pair the pendant with a heart ring, such as our Heart Shape Diamond Ring Noelle No. 3, from $5,400. Our heart jewelry sets collection groups heart pieces that work together.
Many people start with the pendant and add a matching piece on the next birthday or anniversary. That way the set grows with the relationship.
How long should a heart necklace chain be?
Where the heart falls is a matter of taste. As a reference, 40 cm is 15.7 inches, 45 cm is 17.7 inches and 50 cm is 19.7 inches.
Shorter lengths keep a heart near the collarbone, longer ones let it sit lower on the chest. Our necklace length guide shows where each length sits.
Every piece is made to order in Los Angeles, with conflict-free stones, a lifetime warranty, free worldwide shipping and 30-day returns.
Shop the look
- Heart Ruby Necklace - Noelle No. 56 — from $2,744 — a romantic ruby heart, our pick for anniversaries.
- Heart Ruby Necklace - Noelle No. 55 — from $2,744 — the same ruby heart in a warmer tone.
- Heart Sapphire Royal Vintage Gold Necklace - Gia No. 75 — from $11,984 — a vintage statement in blue sapphire.
- Heart Sapphire Royal Vintage Gold Necklace - Gia No. 74 — from $11,984 — another take on the regal sapphire heart.
Frequently asked questions
Which stone is best for a heart pendant? White diamond is the most versatile and ruby the most romantic. Black diamond suits a modern style and sapphire a vintage one.
How much does a gold heart pendant cost? It depends on stone and size. Our Heart Ruby Necklace designs start from $2,744, and the Gia heart sapphire necklaces from $11,984.
What size heart stone looks best? Around 1 carat, which measures 6.5 mm across on our product pages, is large enough for the heart shape to read clearly.
Can a heart pendant be engraved? Free engraving is one of our policies. Share what you want engraved and we will confirm what fits the design.
Are black diamond hearts natural? Yes. Our black diamonds are natural and color-enhanced, and all our stones are conflict-free.


