Diamond Eternity Rings

ダイヤモンドエタニティリング

Diamond Eternity Rings

Discover timeless elegance with our Diamond Eternity Ring collection.

Each ring features a continuous row of brilliant-cut diamonds, symbolizing eternal love and everlasting beauty.

Available in a variety of settings, shapes, and precious metals, our eternity bands are perfect for weddings, anniversaries, or meaningful gifts.

Hand-selected natural diamonds. Custom orders available.

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価格の安い順 価格の高い順
  • Round & Emerald-cut Diamond Eternity Ring - approx. 1.07ct

    Round & Emerald-cut Diamond Eternity Ring - approx. 1.07ct

    ¥310,000 (Tax incl.)
    NEW
  • 18KPG Diamond Eternity Ring Faint Pink - 1.55ct

    18KPG Diamond Eternity Ring Faint Pink - 1.55ct

    ¥290,000 (Tax incl.)
    NEW
  • PT900 Heart Cut Half Eternity Diamond Ring 1.477ct

    PT900 Heart Cut Half Eternity Diamond Ring 1.477ct

    ¥580,000 (Tax incl.)
    NEW
  • 18K Round-Cut Diamond Full Eternity Ring 1.06ct

    18K Round-Cut Diamond Full Eternity Ring 1.06ct

    ¥230,000 (Tax incl.)
    NEW
  • 18K Round-Cut Diamond Half Eternity Ring 0.64ct

    18K Round-Cut Diamond Half Eternity Ring 0.64ct

    ¥230,000 (Tax incl.)
    NEW
  • Round-cut Diamond Eternity Ring - 0.33ct

    Round-cut Diamond Eternity Ring - 0.33ct

    ¥250,000 (Tax incl.)
  • 18K 8 Stone Round Cut Half Eternity Diamond Ring 1ct

    18K 8 Stone Round Cut Half Eternity Diamond Ring 1ct

    ¥360,000 (Tax incl.)
  • 18K 10 Stone Round Cut Half Eternity Diamond Ring 0.61ct

    18K 10 Stone Round Cut Half Eternity Diamond Ring 0.61ct

    ¥230,000 (Tax incl.)
  • Round-Cut Diamond Full Eternity Ring - 1.81ct

    Round-Cut Diamond Full Eternity Ring - 1.81ct

    ¥380,000 (Tax incl.)
  • Round-Cut Diamond Eternity Ring - 1.18ct

    Round-Cut Diamond Eternity Ring - 1.18ct

    ¥410,000 (Tax incl.)
  • Baguette-cut Diamond Eternity Ring - 0.5ct

    Baguette-cut Diamond Eternity Ring - 0.5ct

    ¥270,000 (Tax incl.)
  • Round-Cut Diamond Eternity Ring - 0.2ct

    Round-Cut Diamond Eternity Ring - 0.2ct

    ¥88,000 (Tax incl.)
  • Round-Cut Diamond Eternity Ring - 1.63ct

    Round-Cut Diamond Eternity Ring - 1.63ct

    ¥340,000 (Tax incl.)
  • PT900 5 Stone Pear Cut Half Eternity Diamond Ring 1.22ct
    Sold out

    PT900 5 Stone Pear Cut Half Eternity Diamond Ring 1.22ct

    ¥560,000 (Tax incl.)
    Sold out
  • PT900 Round-Cut Diamond Eternity Ring 0.29ct
    Sold out

    PT900 Round-Cut Diamond Eternity Ring 0.29ct

    ¥130,000 (Tax incl.)
    Sold out
  • PT950 Round-Cut Diamond Eternity Ring - 1.16ct
    Sold out

    PT950 Round-Cut Diamond Eternity Ring - 1.16ct

    ¥350,000 (Tax incl.)
    Sold out
  • 18KPG Round-Cut Diamond Eternity Ring - 1.12ct
    Sold out

    18KPG Round-Cut Diamond Eternity Ring - 1.12ct

    ¥230,000 (Tax incl.)
    Sold out
  • Round-Cut Diamond Eternity Ring - 1ct
    Sold out

    Round-Cut Diamond Eternity Ring - 1ct

    ¥170,000 (Tax incl.)
    Sold out
  • Round-Cut Diamond Eternity Ring - 0.5ct
    Sold out

    Round-Cut Diamond Eternity Ring - 0.5ct

    ¥120,000 (Tax incl.)
    Sold out
  • Round-Cut Diamond Full Eternity Ring - 1.02ct
    Sold out

    Round-Cut Diamond Full Eternity Ring - 1.02ct

    ¥270,000 (Tax incl.)
    Sold out
  • 天然ダイヤモンドフルエタニティリング 18金 2.71ct Round 画像
    Sold out

    Round-Cut Diamond Full Eternity Ring - 2.71ct

    ¥490,000 (Tax incl.)
    Sold out
  • 天然ダイヤモンドエタニティリング Mushoku 1.61ct Round 横画像
    Sold out

    Round-Cut Diamond Eternity Ring - 1.6ct

    ¥330,000 (Tax incl.)
    Sold out
  • Emerald-Cut Diamond Eternal Ring - 3.2ct
    Sold out

    Emerald-Cut Diamond Eternal Ring - 3.2ct

    ¥890,000 (Tax incl.)
    Sold out
  • エタニティ・天然無色ダイヤモンド リング 1.110ct 18Kリング映像
    Sold out

    Eternity Natural Colorless Diamond Ring 1.110ct 18K

    ¥498,000 (Tax incl.)
    Sold out

How to Choose a Diamond Eternity Ring

A diamond eternity ring features natural diamonds set continuously around the full band or across the top half — a timeless symbol of enduring love. Popular as both engagement and wedding rings, eternity rings also make an elegant anniversary gift or personal indulgence. At Weiss, every eternity ring is set with GIA, IGI, or GGS-certified natural diamonds in platinum (PT900/PT950) or 18K gold in white, yellow, or rose.

Full Eternity vs Half Eternity

A full eternity ring features diamonds set all the way around the band, catching light from every angle. A half eternity ring has diamonds across the top half only — slightly more comfortable for everyday wear and generally easier to resize. Full eternity rings have limited resizing options due to the continuous stone setting; we recommend confirming your ring size carefully before ordering. If you're unsure of your size, contact us before purchasing and we'll advise.

Choosing a Setting Style

We offer four setting styles across our eternity ring collection. Prong setting maximises light exposure and brilliance, allowing the diamonds to shine freely from all angles. Channel setting creates a smooth, modern profile with stones set flush between two metal walls — sleek and secure. Bezel setting encases each stone in a fine metal rim for a minimal, contemporary look. Pavé setting features closely-set stones held by minimal metal, creating a surface of continuous, dense sparkle.

Choosing by Carat Weight and Colour Grade

The total carat weight of an eternity ring depends on the number and size of the stones set in the band. Our collection ranges from 0.2ct to 2.71ct total carat weight, covering a wide range of budgets and preferences. For colour, D–F grades offer a crisp colourless appearance with maximum brilliance. G–H grades deliver a near-colourless look with an excellent balance of quality and value — the sweet spot for most buyers.

Choosing a Metal

The metal you choose affects both the look of the ring and its durability over time. Platinum (PT900/PT950) is the most durable option and best complements the whiteness of colourless diamonds — the classic choice for fine jewelry. 18K white gold offers a similar appearance with a slightly lighter feel. 18K yellow gold brings a warm, classic elegance, while 18K rose gold creates a romantic, distinctive contrast against the diamonds.

Custom eternity rings are available to your preferred specifications — carat weight, diamond shape, metal, and setting style. Please note that recreating a sold-out piece at the original price may not always be possible. Contact us to discuss what's available.

Frequently Asked Questions

A full eternity ring has diamonds set all the way around the band, creating sparkle from every angle. A half eternity ring has diamonds set across the top half only, making it slightly more comfortable for daily wear and easier to resize. Both styles are available at Weiss in a range of carat weights, metals, and setting styles.
Half eternity rings can generally be resized. Full eternity rings have limited resizing options because the continuous stone setting makes adjustments difficult without disturbing the stones. We strongly recommend confirming your ring size before purchasing a full eternity ring. If you're unsure, contact us before ordering and we'll advise you.
Yes. We can create a custom eternity ring to your preferred specifications — carat weight, diamond shape, metal type, and setting style. Please note that recreating a previously sold-out piece at its original price may not always be possible. Contact us to discuss your requirements.
Our eternity rings come with GIA, IGI, or GGS certification depending on the piece. Multi-stone eternity rings typically carry a GGS certificate, which is the standard for this type of jewelry. Pieces with a single larger center stone will carry a GIA or IGI certificate. The certificate type is listed on each individual product page.
Absolutely. Diamond eternity rings are a popular choice for both engagement and wedding rings in Japan. We carry styles ranging from classic round brilliant settings in platinum to fancy cut designs in yellow and rose gold. Custom orders are also available if you have a specific design in mind.
Yes. Our Okachimachi showroom is open Monday to Friday, 9am to 7pm, by appointment. Weekend appointments can be arranged in advance. You're welcome to compare multiple rings side by side before making any decision. Book an appointment through our contact page or by phone.