What do the color and clarity grades mean for this diamond?

This pendant carries G-H color and VS2-SI1 clarity diamonds. G-H sits in the near-colorless range, showing no obvious tint to the eye against the white metal beneath the plating. VS2-SI1 means inclusions are minor and generally not visible without magnification, so the pave line stays bright and clean along the heart.

Whose birthstone is Diamond and what month does it represent?

Diamond is the birthstone for April. It stands alone as that month's traditional stone, with no widely recognized secondary alternative. For an April birthday, this pendant pairs the diamond outline with a ruby accent, which happens to be July's birthstone, making it a fitting choice for shared or overlapping celebrations.

What length chain does this pendant come with?

This necklace comes on an 18-inch chain, a standard length that carries the heart pendant on its own or in a layered stack. The 18-inch measurement is the full length of the chain from clasp to end, giving a familiar drop that suits most necklines.

How does this pendant sit at 18 inches?

This 18-inch necklace rests just at or slightly below the collarbone on most wearers, placing the open heart at the base of the throat. The length keeps the pendant visible above most crew and scoop necklines, and the fixed bail holds the heart facing forward as it settles.

What clasp does this necklace use?

This necklace secures with a spring ring clasp, a standard closure for a chain of this weight. The spring ring opens with a small lever and snaps shut against the end ring, holding the 18-inch chain in place through daily wear and layering.

Can I layer this pendant with other necklaces?

This open heart pendant layers well with pieces at different lengths. Set the 18-inch chain as a mid-length anchor and pair it with a shorter choker or a longer drop to keep the pendants from crowding. The black rhodium finish also pairs cleanly with both white and darker metals.

What is the shipping and return policy?

Oath Jewelry ships every order free with tracking included. Returns are accepted within 30 days of delivery; customers are responsible for return shipping, and a 15% restocking fee applies. Orders are packaged securely and arrive ready to gift.

18K black rhodium gold necklace with heart diamond and ruby open heart pendant

18K 1/3 Cttw Diamond and Red Ruby Open Heart with Black Rhodium 18" Pendant Necklace (G-H Color, VS2-SI1 Clarity)

Name: 18K 1/3 Cttw Diamond and Red Ruby Open Heart with Black Rhodium 18" Pendant Necklace (G-H Color, VS2-SI1 Clarity)
Brand: Oath Jewelry
SKU: 022509NM48
Price: 4488.80 USD
Availability: InStock

$4,488.80

Crafted in Unknown

30-day returns. Return policy

Free Priority Shipping

Secure Purchase

Genuine Materials

Ships in 1 to 2 business days

Total $4,488.80

An open heart silhouette in 18K gold frames a small ruby set into one curve, with pave diamonds tracing the outline for 1/3 carat total across the frame. Black rhodium plating darkens the metal so the diamond line and red stone read with contrast against the deep finish. The bail sits fixed at the top point of the heart, threading the 18-inch chain so the pendant hangs upright without twisting. Every order ships free with a 30-day return policy.

Product Details & Specs

Metal: Unknown
Karat: 18K
Gemstone: Diamond
Stone Shape: Heart
Total Carat Weight: 3 ct
Color and Clarity: g-h color, vs2 clarity
Length: 18"

The Meaning

The open heart carries an idea of love that stays unfinished on purpose, a shape left ready to hold more. Paired with a ruby, long tied to passion and vitality, and diamonds that mark commitment, the piece speaks to devotion that keeps growing rather than settling.

This is the kind of pendant given at an anniversary or a first Valentine's Day, or handed to a daughter born in April as her birthstone piece. The ruby adds a private note of warmth, so the wearer carries a small signal of the person who gave it.

Frequently Asked Questions

What do the color and clarity grades mean for this diamond?: This pendant carries G-H color and VS2-SI1 clarity diamonds. G-H sits in the near-colorless range, showing no obvious tint to the eye against the white metal beneath the plating. VS2-SI1 means inclusions are minor and generally not visible without magnification, so the pave line stays bright and clean along the heart.
Whose birthstone is Diamond and what month does it represent?: Diamond is the birthstone for April. It stands alone as that month's traditional stone, with no widely recognized secondary alternative. For an April birthday, this pendant pairs the diamond outline with a ruby accent, which happens to be July's birthstone, making it a fitting choice for shared or overlapping celebrations.
What length chain does this pendant come with?: This necklace comes on an 18-inch chain, a standard length that carries the heart pendant on its own or in a layered stack. The 18-inch measurement is the full length of the chain from clasp to end, giving a familiar drop that suits most necklines.
How does this pendant sit at 18 inches?: This 18-inch necklace rests just at or slightly below the collarbone on most wearers, placing the open heart at the base of the throat. The length keeps the pendant visible above most crew and scoop necklines, and the fixed bail holds the heart facing forward as it settles.
What clasp does this necklace use?: This necklace secures with a spring ring clasp, a standard closure for a chain of this weight. The spring ring opens with a small lever and snaps shut against the end ring, holding the 18-inch chain in place through daily wear and layering.
Can I layer this pendant with other necklaces?: This open heart pendant layers well with pieces at different lengths. Set the 18-inch chain as a mid-length anchor and pair it with a shorter choker or a longer drop to keep the pendants from crowding. The black rhodium finish also pairs cleanly with both white and darker metals.
What is the shipping and return policy?: Oath Jewelry ships every order free with tracking included. Returns are accepted within 30 days of delivery; customers are responsible for return shipping, and a 15% restocking fee applies. Orders are packaged securely and arrive ready to gift.