Every diamond in our Signature Jewelry 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, Signature Collection jewelry offers diamonds set in enduring platinum or 18k gold and is set with Blue Nile Signature diamonds. A certificate of authenticity, issued by the Gem Certification & Assurance Lab (GCAL), accompanies each item.
Build Your Own Ring™ featuring Blue Nile Signature Diamonds
Match a Blue Nile Signature Diamond with your favorite setting to create a custom engagement ring.
Build Your Own Earrings™ featuring Blue Nile Signature Diamonds
Choose two round, princess-cut or Asscher-cut Blue Nile Signature Diamonds to set in your choice of platinum, 18k yellow gold, or 18k white gold.
Blue Nile Signature Diamond Ring in Platinum (1 1/2 ct. tw.)
As featured on InStyleWeddings.com, this classic style is perfect for an alternative to a diamond engagement ring. Five Blue Nile Signature Ideal cut diamonds are set in this stunning diamond band accompanied by a GCAL report.
$6,800
Blue Nile Signature Diamond Ring in Platinum (2 ct. tw.)
Five Blue Nile Signature Ideal cut diamonds are set in this stunning diamond band accompanied by a GCAL report.
$10,200
Blue Nile Signature Diamond Earrings Set in Platinum
Blue Nile Signature Ideal Cut diamonds are surrounded by brilliant micro-pave diamonds in these one-of-a-kind earrings. Earrings are accompanied by AGSL grading report on each center diamond.
$18,000
New Blue Nile Signature Ideal Cut Diamond Bracelet (10.58 ct. tw.)
This stunning, one-of-a-kind bracelet features forty-two Blue Nile Signature Ideal Cut diamonds, each hand-set in durable four-prong platinum settings. The bracelet is accompanied by a GCAL Blue Nile Signature Certificate of Authenticity.
$30,750
New Signature Diamond Eternity Ring in Platinum (3 ct. tw.)
This exquisite eternity ring features Blue Nile Signature Ideal cut diamonds set with shared-prongs in a sculpted-edge platinum band. The ring is accompanied by a GCAL report.
$7,800
Signature Diamond Eternity Ring in Platinum (4 ct. tw.)
This exquisite eternity ring features Blue Nile Signature Ideal cut diamonds set with shared-prongs in a sculpted-edge platinum band. The ring is accompanied by a GCAL report.
$12,500
Blue Nile Signature Diamond Ring in Platinum (1 ct. tw.)
Five Blue Nile Signature Ideal cut diamonds are set in this stunning diamond band accompanied by a GCAL report.
$3,500
Build Your Own Diamond Pendant™ featuring Blue Nile Signature Diamonds
Choose a round, princess, emerald, or Asscher-cut Signature Diamond to set in your choice of platinum or 18k yellow gold.
Build Your Own Five-Stone Ring™ featuring Blue Nile Signature Diamonds Custom build an elegant band, with round diamonds set in your choice of platinum or 18k gold.
