Blue Nile Signature Diamonds

Blue Nile

Signature Diamonds

The top 1% of all diamonds in the world, hand selected and cut to our most exacting standards. Custom jewellery set with diamonds from the Blue Nile Signature Collection will ship the next day if your order is placed by 3pm ET.

search for diamonds

Blue Nile Signature Round

Blue Nile Signature Round

 

Our Signature round diamonds are cut with perfect proportions for maximum brilliance. Learn more

more
Blue Nile Signature Princess

Blue Nile Signature Princess

 

The only ideal cut standard applied to the princess-cut diamond. Learn more

more
Blue Nile Signature Emerald

Blue Nile Signature Emerald

 

The first emerald-cut diamond with ideal cut standards. Learn more

more
Blue Nile Signature Asscher

Blue Nile Signature Asscher

 

The world?s only Asscher diamond cut to our ideal standards. Learn more

more

 

Education and Guidance

Every diamond in the Blue Nile Signature Collection is hand-selected and cut to the most exacting standards, guaranteeing a more brilliant diamond than any other Ideal cut.

Custom made exclusively for Blue Nile, the Blue Nile Signature Collection includes the world's most brilliant round diamond.

LEARN MORE
Blue Nile Laser Inscriptions

Blue Nile Laser Inscriptions

Because diamonds of this quality are so rare, each one has a laser inscription. Only legible at 50x magnification.

Blue Nile Signature Diamond Jewellery

Blue Nile Signature Diamond Jewellery

For a truly extraordinary gift, choose jewellery created exclusively with Blue Nile Signature Collection diamonds.

Recently Purchased Diamonds

Recently Purchased Diamonds

Find out what other customers select after learning more about the four Cs.

Read Customer Feedback

Read Customer Feedback

Read the comments our customers have sent us about their Blue Nile Signature Collection diamond.