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Princess Cut Blue Diamond Engagement Rings

These blue diamond princess cut engagement rings are settings made for a fancy blue center, which you choose in the next step. Styles run from plain solitaires to pave, halo, side stone, three stone, bezel and vintage designs. Every setting comes in white, yellow or rose gold, platinum, or Silvadium, a tarnish-resistant sterling silver.

1Choose a setting
Choose a Setting
Browse signature ring designs
2Select a diamond
Select a Diamond
Filter by shape, carat & budget
3Complete the ring
Complete the Ring
Preview & make it yours
Find Your Cut

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Conflict-Free
Ethically sourced diamonds
Lifetime Warranty
Free cleaning & resizing
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30-day returns
IGI / GIA Certified
Independently graded

Buying guide

The princess cut in blue

A princess cut is square with sharp corners and many facets, so it gives a lot of sparkle in a crisp, modern outline. In a blue diamond princess cut ring the square face shows the color evenly from edge to edge. The four corners are the most exposed points of the stone; a bezel, a halo or prongs set over each corner help protect them.

Choosing the metal

White gold, platinum and silver are the usual partners for a blue center: their cool tone keeps the blue clean and vivid. Yellow and rose gold create a stronger contrast and a warmer, more vintage look. Gold settings come in 10K, 14K or 18K.

Popular styles

  • Pave: lab-grown diamond accents along the band, the most common choice here.
  • Solitaire: the blue square alone on a plain band.
  • Halo and hidden halo: white lab-grown diamond accents around or under the center that make blue look deeper by contrast.
  • Three stone and side stone: princess cut engagement rings with blue diamonds framed by white side stones.
  • Vintage and milgrain: beaded edges, filigree and floral details.

Settings start under $150, and most are between about $700 and $1,150. That price is for the setting only; the center is priced when you choose it.

Made to order

Each ring is made for you in 10–15 days. Shipping is free on orders over $500, returns are accepted within 30 days, and one resize is free within 60 days of delivery.