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

This necklace carries H-I color and I2 clarity diamonds. H-I sits in the near-colorless range, showing only a faint warmth that is hard to detect once set. I2 means the stones have inclusions visible under close inspection, which keeps the grade accessible while the brilliant cut still returns light across the spiral.

Whose birthstone is Diamond and what month does it represent?

Diamond is the birthstone for April. It is the only traditional birthstone assigned to that month, so April babies do not share a secondary stone the way some months do. This makes a diamond pendant a direct nod to anyone celebrating a spring birthday.

How does this pendant sit at 18" inches?

This 18-inch necklace rests just below the collarbone on most adults, sitting at or near the base of the throat. The length works well over crew necklines and open collars alike, keeping the spiral pendant visible without disappearing under higher fabric.

What clasp does this necklace use?

This necklace closes with a standard spring ring clasp, a small spring-loaded ring you pull open with your thumbnail and release to secure. It is a common closure for chains at this weight and holds reliably through daily wear while remaining easy to fasten one-handed.

Can I layer this pendant with other necklaces?

This pendant layers well because of its 18-inch length and modest scale. Pairing it with a shorter choker or a longer chain of 20 to 24 inches creates spacing between pieces. The two-tone metal lets it work alongside both yellow and white gold pieces in a stack.

Is this necklace suitable for men and women?

This necklace suits anyone drawn to its style. The spiral pendant and 18-inch length read as versatile rather than gendered, and the two-tone gold coordinates with a range of wardrobes. Oath makes no distinction in who wears it; the fit and finish work across preferences.

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.

10K two-tone gold necklace with brilliant-cut diamond spiral pendant

Espira 10K Two-Tone Yellow & White 1/6 Cttw Brilliant-Cut Diamond Layered Spiral 18" Pendant Necklace (H-I Color, I2-I3 Clarity)

Name: Espira 10K Two-Tone Yellow & White 1/6 Cttw Brilliant-Cut Diamond Layered Spiral 18" Pendant Necklace (H-I Color, I2-I3 Clarity)
Brand: Oath Jewelry
SKU: 81-6524TDM
Price: 649.16 USD
Availability: InStock

Two-tone 10K gold winds into a layered spiral, with yellow and white gold ribbons overlapping to form the pendant's open coil. Brilliant-cut diamonds totaling 1/6 carat catch light along the curve, held in small bead settings that keep the stones flush against the metal. The pendant hangs from a fixed bail that threads onto the 18-inch chain, so it stays centered as you move. Every order ships free with a 30-day return policy.

$649.16

Crafted in Two-Tone

30-day returns. Return policy

Free Priority Shipping

Secure Purchase

Genuine Materials

Ships in 1 to 2 business days

Total $649.16

The Meaning

The spiral has long stood for growth and continuity, a line that turns without ending. Diamond, April's birthstone, carries associations with clarity and endurance, its hardness making it a symbol of steady commitment across many cultures.

That combination suits a marker of forward motion: a graduation, a first year in a new city, or a birthday for someone born in April. The coiling shape gives the piece a sense of movement, a fitting way to note a moment when life is turning toward something new.

Product Details & Specs

Metal: Two-Tone
Karat: 10K
Gemstone: Diamond
Total Carat Weight: 6 ct
Color and Clarity: h-i color, i2 clarity
Length: 18"

Frequently Asked Questions

What do the color and clarity grades mean for this diamond?: This necklace carries H-I color and I2 clarity diamonds. H-I sits in the near-colorless range, showing only a faint warmth that is hard to detect once set. I2 means the stones have inclusions visible under close inspection, which keeps the grade accessible while the brilliant cut still returns light across the spiral.
Whose birthstone is Diamond and what month does it represent?: Diamond is the birthstone for April. It is the only traditional birthstone assigned to that month, so April babies do not share a secondary stone the way some months do. This makes a diamond pendant a direct nod to anyone celebrating a spring birthday.
How does this pendant sit at 18" inches?: This 18-inch necklace rests just below the collarbone on most adults, sitting at or near the base of the throat. The length works well over crew necklines and open collars alike, keeping the spiral pendant visible without disappearing under higher fabric.
What clasp does this necklace use?: This necklace closes with a standard spring ring clasp, a small spring-loaded ring you pull open with your thumbnail and release to secure. It is a common closure for chains at this weight and holds reliably through daily wear while remaining easy to fasten one-handed.
Can I layer this pendant with other necklaces?: This pendant layers well because of its 18-inch length and modest scale. Pairing it with a shorter choker or a longer chain of 20 to 24 inches creates spacing between pieces. The two-tone metal lets it work alongside both yellow and white gold pieces in a stack.
Is this necklace suitable for men and women?: This necklace suits anyone drawn to its style. The spiral pendant and 18-inch length read as versatile rather than gendered, and the two-tone gold coordinates with a range of wardrobes. Oath makes no distinction in who wears it; the fit and finish work across preferences.
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.

Shipping & Returns

Free U.S. shippingOn every order, no minimum

Ships in 1 to 2 business daysThen 2 to 5 business days in transit

30-day returnsUnworn and in original condition

Tracking on every orderEmailed as soon as it ships