Diamond Eternity Rings | Blue Nile
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Extraordinary Eternity Rings

Make the biggest impression with our unparalleled assortment of diamond eternity rings. Expertly crafted in enduring platinum to last a lifetime, find the perfect shape and size for you. Each endless row of diamonds is perfectly-matched and held to higher than average quality standards.

Cushion-Cut Diamond Eternity Rings in Platinum

Cushion-Cut Diamond Eternity Rings in Platinum
The brilliant curves of cushion-cut diamonds offer timeless, stunning sparkle. Total carat weights will vary based on finger size.
Cushion Cut Diamond Eternity Ring in Platinum (3.0 ct. tw.)

3.0 ct. tw.

Starting at $7,680

Cushion Cut Diamond Eternity Ring in Platinum (3.5 ct. tw.)

3.5 ct. tw.

Starting at $9,580

Cushion Cut Diamond Eternity Ring in Platinum (4.0 ct. tw.)

4.0 ct. tw.

Starting at $11,080

Cushion Cut Diamond Eternity Ring in Platinum (4.5 ct. tw.)

4.5 ct. tw.

Starting at $13,080

Cushion Cut Diamond Eternity Ring in Platinum (5.0 ct. tw.)

5.0 ct. tw.

Starting at $16,180

Cushion Cut Diamond Eternity Ring in Platinum (5.5 ct. tw.)

5.5 ct. tw.

$19,700

$13,790

Cushion Cut Diamond Eternity Ring in Platinum (6.0 ct. tw.)

6.0 ct. tw.

Starting at $20,680

Cushion Cut Diamond Eternity Ring in Platinum (7.0 ct. tw.)

7.0 ct. tw.

Starting at $26,880

dime for scale
17.9 mm

Emerald-Cut Diamond Eternity Rings in Platinum

Emerald-Cut Diamond Eternity Rings in Platinum
The elongated, step-cut facets of emerald-cut diamonds offer elegant sophistication. Total carat weights will vary based on finger size.
Emerald Cut Diamond Eternity Ring in Platinum (3.0 ct. tw.)

3.0 ct. tw.

Starting at $6,905

Emerald Cut Diamond Eternity Ring in Platinum (4.0 ct. tw.)

4.0 ct. tw.

Starting at $9,480

Emerald Cut Diamond Eternity Ring in Platinum (5.0 ct. tw.)

5.0 ct. tw.

Starting at $13,680

Starting at $10,944

Emerald Cut Diamond Eternity Ring in Platinum (5.5 ct. tw.)

5.5 ct. tw.

Starting at $17,820

Starting at $12,474

Emerald Cut Diamond Eternity Ring in Platinum (7.0 ct. tw.)

7.0 ct. tw.

Starting at $27,800

dime for scale
17.9 mm

Asscher-Cut Diamond Eternity Rings in Platinum

Asscher-Cut Diamond Eternity Rings in Platinum
Squarely refined, the step-cut facets of Asscher-cut diamonds create a dramatic impression. Total carat weights will vary based on finger size.
Asscher Cut Diamond Eternity Ring in Platinum (3.0 ct. tw.)

3.0 ct. tw.

Starting at $7,310

Asscher Cut Diamond Eternity Ring in Platinum (5.0 ct. tw.)

5.0 ct. tw.

Starting at $15,280

Starting at $12,224

Asscher Cut Diamond Eternity Ring in Platinum (5.5 ct. tw.)

5.5 ct. tw.

$19,080

$13,356

Asscher Cut Diamond Eternity Ring in Platinum (6.0 ct. tw.)

6.0 ct. tw.

Starting at $20,480

Asscher Cut Diamond Eternity Ring in Platinum (7.0 ct. tw.)

7.0 ct. tw.

Starting at $30,080

dime for scale
17.9 mm

Princess-Cut Diamond Eternity Rings in Platinum

Princess-Cut Diamond Eternity Rings in Platinum
Modern sparkle, princess-cut diamonds make a genuinely brilliant statement. Total carat weights will vary based on finger size.
Princess Cut Diamond Eternity Ring in Platinum (3.0 ct. tw.)

3.0 ct. tw.

Starting at $6,680

Princess Cut Diamond Eternity Ring in Platinum (4.0 ct. tw.)

4.0 ct. tw.

Starting at $10,980

Princess Cut Diamond Eternity Ring in Platinum (5.5 ct. tw.)

5.5 ct. tw.

Starting at $17,280

dime for scale
17.9 mm

Radiant-Cut Diamond Eternity Rings in Platinum

Radiant-Cut Diamond Eternity Rings in Platinum
Brilliantly faceted, with trimmed corners, radiant-cut diamonds are an unforgettable classic. Total carat weights will vary based on finger size.
Radiant Cut Diamond Eternity Ring in Platinum (3.0 ct. tw.)

3.0 ct. tw.

Starting at $8,080

Radiant Cut Diamond Eternity Ring in Platinum (4.0 ct. tw.)

4.0 ct. tw.

Starting at $9,880

Radiant Cut Diamond Eternity Ring in Platinum (5.0 ct. tw.)

5.0 ct. tw.

Starting at $13,280

Radiant Cut Diamond Eternity Ring in Platinum (6.0 ct. tw.)

6.0 ct. tw.

Starting at $20,680

Radiant Cut Diamond Eternity Ring in Platinum (7.0 ct. tw.)

7.0 ct. tw.

Starting at $29,880

dime for scale
17.9 mm

Oval-Cut Diamond Eternity Rings in Platinum

Oval-Cut Diamond Eternity Rings in Platinum
Elongated radiance, oval-cut diamonds offer a unique line of brilliance. Total carat weights will vary based on finger size.
Oval Cut Diamond Eternity Ring in Platinum (3.0 ct. tw.)

3.0 ct. tw.

Starting at $8,680

Oval Cut Diamond Eternity Ring in Platinum (4.0 ct. tw.)

4.0 ct. tw.

Starting at $13,280

Oval Cut Diamond Eternity Ring in Platinum (5.0 ct. tw.)

5.0 ct. tw.

Starting at $17,880

Starting at $14,304

Oval Cut Diamond Eternity Ring in Platinum (5.5 ct. tw.)

5.5 ct. tw.

Starting at $21,080

dime for scale
17.9 mm

Round Diamond Eternity Rings in Platinum

Round Diamond Eternity Rings in Platinum
Classic round-cut diamonds eternal brilliance and lifetime value. Total carat weights will vary based on finger size.
Tessere Weave Diamond Eternity Ring in 18k White Gold (1 ct. tw.)

1 ct. tw.

$3,400

$2,380

Classic Diamond Eternity Ring in Platinum (2 ct. tw.)

2 ct. tw.

$3,750

$3,000

Tessere Weave Diamond Eternity Ring in 18k White Gold (2 ct. tw.)

2 ct. tw.

$5,200

$3,640

Classic Diamond Eternity Ring in Platinum (3 ct. tw)

3 ct. tw

Starting at $5,090

Starting at $4,072

NEW Royal Crown Diamond Eternity Ring in Platinum

$7,225

Classic Diamond Eternity Ring in Platinum (4 ct. tw.)

4 ct. tw.

Starting at $9,340

Classic Diamond Eternity Ring in Platinum (5 ct. tw.)

5 ct. tw.

Starting at $15,580

dime for scale
17.9 mm