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Woman wearing maroon blouse, diamond stud earrings and diamond pendant necklace


An exceptional tribute to life’s greatest moments and bonds, the beauty of
an Astor™ diamond speaks for itself.

The Ultimate Love Letter

An Astor diamond engagement ring is simply peerless. Celebrate your love with our benchmark for brilliance.
Profile of silver and diamond engagement ring

Your Perfect Piece

An Astor diamond is meant to be worn. Add our signature diamond to your pendant and create something undeniably beautiful.
Loose diamond beside a diamond pendant necklace with silver chain

A Celebration of Light

Showcase this rare beauty with a set of custom studs, designed with an Astor diamond at the center.
Asian female wearing white blazer and square diamond stud earrings

Incredible beauty comes in different shapes and sizes.

white male hands holding diamond ring and jeweler's loupe


Every diamond in The Astor Collection™ is graded for triple excellence in its cut,
symmetry and polish by industry experts, including GIA, GCAL, and GemEx.

Only at Blue Nile

When it comes to celebrations we strive to make your experience as
brilliant as our jewelry with the perfect pieces for every occasion.

Meet our personal jewelers, explore bestselling styles, pick up an online order, arrange to preview something from our online collection and so much more.
Book a fun and interactive appointment with a diamond expert and get up-close views of diamond and jewelery options from the comfort of your own home.
Amazing Value
The highest-quality design at a great price.
Peace of Mind
30-day returns, diamond price-match guarantee and more.
Expert Guidance
The original online jeweler since 1999.
Inspiring Assortment
The perfect pieces for every occasion.