Elongated Cushion Cut Cubic Zirconia Classic Solitaire Engagement Ring

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SKU: R1001EC
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Our elongated cushion cut laboratory grown diamond alternative cubic zirconia classic solitaire engagement rings feature an exclusive cut in a premier shape that is a combination of the elegant square cushion cut simulated and an oval shape, resulting in an elongated cushion cut or sometimes referred to as an emerald cut cushion. The lab created diamond look elongated cushion cut is a shape that is normally reserved for larger sized premium higher grade genuine mined diamonds, providing a delicate balance between its scintillating facets and softly curved sides. Compare this elongated cushion cut four prong classic solitaire engagement rings to the traditional styling of the Tiffany solitaires. The elongated cushion cut diamond look cubic zirconia in this solitaire is set in a four prong die struck classic solitaire setting with a tapered rounded shank measuring approximately 2.75mm at its widest point. Each elongated cushion cut 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. You can wear this cushion cut engagement ring alone or pair it with an anniversary or eternity band of your choice for a great bridal wedding set. Available in a myriad of carat size center stones as well as various precious metals like 14k solid, 18k solid gold and precious platinum. See below for the detailed features on this elongated cushion cut diamond look solitaire engagement ring and why people turn to Ziamond for the best lab grown diamond simulants with a lifetime guarantee.


  • Large selection of carat sizes available, see menu options - 1 ct. 7x5mm, 1.50 ct. 8x6mm, 2.50 ct. 9x7mm, 4 ct. 10x8mm, 5.50 ct. 11x9mm, 7 ct. 12x10mm, 9 ct. 14x10mm, 12 ct. 14x12mm, 15 ct. 16x12mm, 20 ct. 18x13mm
  • 4 prong die struck head for superb strength and durability
  • 2.75mm shank at widest point, tapers slightly toward bottom
  • Premium hand cut and hand 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
4 reviews
  • Gorgeous Ring 5

    Posted by Eden P. on Jul 21st 2022

    We did not want to spend thousands on a real diamond. The prices for the genuine and lab diamonds are still way too high in my book. After a lot of research, Ziamond was the place for us. I loved the elongated cushion cut and it looks even better in person. I get compliments all day and the quality is amazing. Yes, the stone sparkles, and people see it on my hand and want to know more about it. It's really a no-brainer if you like the bling but don't want to spend a lot on real diamonds.

  • Happier than I thought I'd be 5

    Posted by Paula Johansen on Apr 11th 2022

    I wasn't sure about this shape or even Ziamond as a company. I am a very selective person in all aspects of my life. I had a friend suggest Ziamond, so I thought I would look at the site. I needed a ring for every day so I could put my real diamond ring in the safety deposit box. I wanted something different yet traditional. I looked at so many different styles and websites, but I kept coming back to Ziamond for some reason. I ordered the ring, it arrived in a couple of weeks. It really exceeded my expectations. The stone is a beautifully curved shape and so brilliant. The ring is made very well with a good thickness on the band and the prongs. My husband was also a doubter but when he saw the actual ring he was happy with my choice. All went well.

  • My first Ziamond experience was great 5

    Posted by Lillian Drew - TX on Mar 11th 2022

    I adore this shape and saw it on Pinterest. The link on Pinterest took me to Ziamond and I was so excited that I could order one. After a couple of weeks of mulling it over, I ordered. Could not be happier and say nicer things about the ring and the company.

  • Love this shape 5

    Posted by Sharon Burgess on Dec 28th 2021

    Of all the shapes of diamonds, this was my favorite. The ring is well made and the cushion cut is amazing. Earrings are next, Thank you Ziamond.

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