Diamond Eternity Rings | Blue Nile

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 (3.5 ct. tw.)

3.5 ct. tw.

Starting at $9,580

Starting at $6,227

Cushion Cut Diamond Eternity Ring in Platinum (3.0 ct. tw.)

3.0 ct. tw.

Starting at $7,680

Starting at $6,144

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

5.0 ct. tw.

Starting at $16,180

Starting at $10,517

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 (6.0 ct. tw.)

6.0 ct. tw.

Starting at $19,080

Starting at $12,402

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

5.5 ct. tw.

Starting at $19,700

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 (2.0 ct. tw.)

2.0 ct. tw.

$5,500

$4,400

Emerald Cut Diamond Eternity Ring in Platinum (3.0 ct. tw.)

3.0 ct. tw.

Starting at $6,905

Starting at $5,524

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

5.0 ct. tw.

$12,880

$8,372

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

4.0 ct. tw.

Starting at $9,780

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

6.0 ct. tw.

$21,170

$13,760.50

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

5.5 ct. tw.

Starting at $17,820

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 (2.0 ct. tw.)

2.0 ct. tw.

$5,500

$4,400

Asscher Cut Diamond Eternity Ring in Platinum (3.0 ct. tw.)

3.0 ct. tw.

Starting at $7,310

Starting at $5,848

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

5.0 ct. tw.

Starting at $15,280

Starting at $11,460

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

6.0 ct. tw.

Starting at $20,420

Starting at $13,273

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

5.5 ct. tw.

Starting at $19,080

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 (2.0 ct. tw.)

2.0 ct. tw.

$5,500

$3,850

Princess Cut Diamond Eternity Ring in Platinum (3.0 ct. tw.)

3.0 ct. tw.

Starting at $6,680

Starting at $5,344

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

4.0 ct. tw.

Starting at $10,980

Starting at $8,784

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

5.5 ct. tw.

Starting at $16,680

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 (2.0 ct. tw.)

2.0 ct. tw.

$5,500

$4,400

Radiant Cut Diamond Eternity Ring in Platinum (3.0 ct. tw.)

3.0 ct. tw.

Starting at $8,080

Starting at $6,464

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

4.0 ct. tw.

Starting at $9,880

Starting at $7,904

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

Starting at $6,944

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

5.0 ct. tw.

Starting at $17,880

Starting at $11,622

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 (5.5 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

$2,720

Classic Diamond Eternity Ring in Platinum (1 3/4 ct. tw.)

1 3/4 ct. tw.

$3,750

$3,000

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

2 ct. tw.

$5,200

$4,160

Classic Diamond Eternity Ring in Platinum (2 3/8 ct. tw.)

2 3/8 ct. tw.

Starting at $5,090

Starting at $4,072

Tessere Weave Diamond Eternity Ring in 18k White Gold (3 ct. tw.)

3 ct. tw.

$8,900

$7,120

Royal Crown Diamond Eternity Ring in Platinum (3 ct. tw.)

3 ct. tw.

Starting at $8,650

Starting at $6,920

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

4 ct. tw.

Starting at $9,340

Starting at $7,472

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

5 ct. tw.

Starting at $15,580

dime for scale
17.9 mm