Princess Cut Square Cubic Zirconia Cathedral Solitaire Engagement Ring

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SKU: R1002Q
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Our princess cut laboratory grown diamond alternative cubic zirconia cathedral solitaire engagement rings blend the traditional Tiffany style solitaire with a graceful, vaulted shank. Both sides of the shank elegantly angle upwards and approach the brilliant princess cut center creating an elevated design element to that of the classic engagement ring style. The princess cut diamond look square is beautifully showcased in this cathedral design and set in a very durable die struck, four prong head. Each pointed corner of the princess cut center stone is secured and protected by a chevron v-shaped prong. Your center stone is secure and well protected while also allowing maximum light for brilliance. The shank of this princess cut engagement ring is slightly rounded and measures approximately 2.5mm at its widest point with a slight taper towards the bottom. Wider 3mm, 4mm and 5mm versions available via special order. The cathedral solitaire is stunningly beautiful when worn alone or coupled with a gold or platinum comfort fit band, simulated diamond band, or man-made colored stone band of your choice. The height of the cathedral shank allows for most eternity bands and anniversary bands to sit more flush against the solitaire. Each princess cut cathedral solitaire features the finest high quality, hand cut and hand polished Russian formula lab grown diamond look cubic zirconia, cut to exact mined diamond specifications. These princess cut cathedral solitaires are available many carat size center stones as well as various precious metals like 14k, 18k solid gold and platinum. See below for the detailed features on this classic princess cut diamond look solitaire engagement ring and why people turn to Ziamond for the best mined diamond simulants with a lifetime guarantee. 


  • Large selection of carat sizes available, see menu options - .75 ct. 5mm, 1 ct. 6mm, 1.50 ct. 7mm, 2.50 ct. 8mm, 4 ct. 9mm, 5.50 ct. 10mm, 7 ct. 11mm, 8.50 ct. 12mm, 10 ct. 13mm
  • 4 prong die struck head for superb strength and durability
  • 2.5mm shank at widest point, tapers slightly toward bottom - 3mm, 4mm and 5mm shank widths also available
  • Cut and polished to genuine mined diamond specifications
  • 14K white gold, 14k yellow gold, 14K rose gold, 18K gold or Platinum metal options
  • Matching and complimentary bands also available
  • Designed and crafted in the USA
  • Finger sizes below a 5 and above an 8 are available via special order
  • Customize this design with any shape, carat size or color of gem via special order - simply call, live chat or email us 
  • Questions? Live Chat with representatives or call 1-866-942-6663

The Ziamond Distinction

  • Lifetime Guarantee on all Ziamond gems
  • Finest high quality hand cut, hand polished Russian formula lab grown diamond look cubic zirconia
  • Comprehensive Jewelry Warranty
  • All Ziamond jewelry mountings are the same as fine diamond jewelry mountings
  • All jewelry is designed, hand crafted and serviced exclusively by Ziamond
  • Customize any jewelry design - simply call, live chat or email us 
  • Jewelry available in various colors or shapes of lab created stones - white diamond look, canary yellow diamond look, pink diamond look, red ruby, blue sapphire and green emerald
  • Wear, care and clean like genuine mined diamond fine jewelry
  • Over 100 years combined fine jewelry experience, on-line for more than 20 years 
  • Experienced and knowledgable staff ready to assist with your questions or custom designs
41 reviews
  • My everyday ring 5

    Posted by Alexa L. on Dec 5th 2022

    I put away my sentimental and expensive genuine diamond engagement ring after a robbery scare. The Ziamond version looks amazingly real. The setting and stone are high quality. I wear it every day and have had nothing but a positive experience with Ziamond.

  • The perfect height 5

    Posted by Kristin W. on Aug 25th 2022

    My Ziamond ring turned out perfect. I was concerned it may sit too high or too low. The person I spoke to on the phone assured me the stone would be set at a height that was aesthetically pleasing and safe for the stone. They were right, it sits up to show off my stone but not too high where it looks odd. Thanks Ziamond!

  • Love this ring! 5

    Posted by Paula on Oct 21st 2021

    I love this ring! It is beautiful and looks completely real

  • Exactly what I wanted! 5

    Posted by Kristen on Jul 30th 2021

    I cannot stress enough how beautiful the ring I just purchased is. It was exactly what I'd been wanting for years, and I didn't necessarily want to spend $1,000!!! It's all set in precious metals that last forever, and Ziamond is the ONE place that I'll keep ordering from!!! Spread the word...their merchandise is So nice!!!

  • Beautiful merchandise 5

    Posted by christine on Dec 27th 2020

    I could not believe how fast I got my order, and it really was beautiful when I got it. You just never know when you can't see the real thing and I was pleasantly surprised when my merchandise came.

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