Round Diamond · Half Eternity

Platinum Round Laboratory-Grown Diamond Three Stone Prong Set Band with Open Baskets

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$1,389$2,778 Save 50%Ends SoonPrice reflects selected diamond weight and gold purity.

A short, straight row of round lab-grown diamonds sits at the top of this platinum wedding band, the stones nearly touching. Each one rests in an open prong basket of its own...

Diamond Weight0.25 Carat
Band Profile 1.8mm wide
Shown on an average finger · to scale
All widths, drawn to scale
0.25 ct 1.8mm
0.35 ct 2mm
0.5 ct 2.2mm

A larger diamond weight calls for a wider band — your selection updates the profile and highlights the matching row.

Ring Size

Made-to-order in your selected US size. Free resizing within 30 days of delivery.

Engraving Optional 0 / 15

Engraved on the inside of the band · up to 15 characters. Letters, numbers and select symbols supported.

Quantity
Handcrafted for you — ships 7 Nov – 12 Nov
Made to order, typically 10–15 days.
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Free Shipping 30-Day Returns Renaissance Jewel Certified
Free Appraisal
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The Details

Craftsmanship & Specs

StyleHalf Eternity Band
SettingProng
MetalPlatinum
Gold Purity
Diamond ShapeRound Brilliant
Stone TypeDiamond
Total Carat Weight0.25 Carat
Band Width1.8 mm
Diamond SourceLab Grown
CertificationRenaissance Jewel Certificate
Style No.1046

About This Band

A short, straight row of round lab-grown diamonds sits at the top of this platinum wedding band, the stones nearly touching. Each one rests in an open prong basket of its own rather than a channel. Where the row meets the band, a small triangular opening sits under each end. The band has a flat outer face, widens slightly toward the stones and is plain polished metal everywhere else.

  • Lab-grown diamonds: round, side by side in a straight line
  • Total lab-grown diamond weight: 0.25, 0.35 or 0.50 ct
  • Setting: individual open prong baskets
  • Metal: platinum
  • Band: flat outer surface, moderate width, plain polished metal
  • Resizing: one free resize within 60 days of delivery; within one size it's done quickly, a bigger change means remaking the ring (about 10–15 days)

Made to order in 10–15 days, with free shipping on orders over $500 and 30-day returns.

Shipping & Returns
Complimentary shipping on every order, with free 30-day returns. Each band ships fully insured in signature packaging, ready to gift.
Sizing & Resizing
A half-eternity setting leaves the underside smooth — perfect for comfort and easy resizing. Choose your US ring size at checkout; one complimentary resize is included within 30 days of delivery.
The Renaissance Promise
Every band ships with a Renaissance Jewel Certificate of Authenticity and is ethically crafted with lab-grown diamonds. Includes a free appraisal and a lifetime warranty covering cleaning and prong inspection.
The Three-Stone Band

Past, Present, and Future

Three Stones

A trio of diamonds for past, present, and future — symbolic, balanced, brilliant.

Prong Setting

Each stone is lifted by four prongs for maximum light.

Easy Resizing

The smooth shank can be resized — your band grows with the years.

Lifetime Care

Free professional cleaning and prong inspection for life.

Buy with Confidence

The 4Cs of Diamonds

Cut

The precision that unlocks a diamond's fire and brilliance.

Color

Graded D–Z, where less color means more rarity.

Clarity

The measure of a diamond's natural inclusions.

Carat

The weight of the diamonds, and presence on the finger.

Loved by Our Clients

Reviews

$1,389$2,778 Platinum Round Laboratory-Grown Diamond Three Stone...50% Off · Ends Soon
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