Trillion Triangle Cubic Zirconia Cathedral Solitaire Engagement Ring

2 reviews Write a Review
SKU: R1002T

Free Shipping

US Orders Over $100

Buy Now, Pay Later

Financing Available!

Cut To Diamond Specifications

Hand Cut & Hand Polished!

Lifetime Guarantee

On All Ziamond Gems

Our triangle trillion 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 trillion center creating an elevated design element to that of the classic engagement ring style. The laboratory created triangular simulated trillion diamond is highly sought after for its modern, geometric shape and it is beautifully showcased in this cathedral design. They feature the finest three prong, die struck heads available in the industry, providing strength and a majestic home for your brilliant trillion shaped center stone. Each pointed corner of the center stone is covered and protected by a chevron v-shaped prong so your center stone is secure and well protected, while also allowing maximum light for brilliance. The shank of this 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 trillion 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 trillion cathedral solitaires are available in a large selection of 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 trillion diamond look solitaire engagement ring and why people turn to Ziamond for the best mined diamond alternatives with a lifetime guarantee. 


  • Large selection of carat sizes available, see menu options - 1 ct. 6.5mm, 1.50 ct. 7.5mm, 2 ct. 8mm, 2.50 ct. 9mm, 3 ct. 9.5mm, 3.50 ct. 10mm, 4 ct. 11mm, 5.50 ct. 12mm, 7 ct. 13mm, 8.50 ct. 14mm, 11 ct. 15mm
  • Die struck head with 3 chevron style, v-shaped prongs 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 created 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
2 reviews
  • Breathtaking 5

    Posted by John on Apr 6th 2018

    the ring is reallly breathtaking, i just bought a house and we got engaged that ring would have been at least 10,000 with a real diamond. I dont mind now i have a georgeous ring and lake front view. Business was a pleasure!!

  • Beautiful! 5

    Posted by LM on Apr 12th 2012

    I just recently stumbled across this site, and so glad I did! I am amazed at the selection and have so many items I want! I ordered three rings and earrings. The Clover band is so unique and I plan to wear as a right hand ring. I’ve always wanted a triangle solitaire, so I got that and an eternity band to wear together and the matching triangle stud earrings. I will definitely be back for more, these stones look sooo good especially the solitaire (because it is a bigger stone). I can’t tell they are not real and there is no way anyone can. Definitely recommend!

Customer Login Close Close
Review your cart Close Close
Your cart is empty
Close Close
Search Close Close