US Size 4.00

Sort by:
425 Products Found
Theme Lucky
Cubic Zirconia Engagement Ring- *Clearance* The Ana Miranda (3.50 Carat Round Cut Center with Twin Trillion Accents, Twisting Shared Prong Split Band, and Halo in 18K Rose Gold)

Cubic Zirconia Engagement Ring- *Clearance* The Ana Miranda (3.50 Carat Round Cut Center with Twin Trillion Accents, Twisting Shared Prong Split Band, and Halo in 18K Rose Gold)

$2,887.35 USD$1,431.06 USD
  Don't be surprised if "ridiculous" is one of the first words to come to mind when someone first lays eyes on this unique Round Cut centered Cubic Zirconia engagement...
Quick view
Cubic Zirconia Engagement Ring- Customer Designed Style 2612

Cubic Zirconia Engagement Ring- Customer Designed Style 2612

From $341.73 USD
This "customer designed" product was designed with the help of one customer through our "Design Your Own" custom cubic zirconia jewelry program. Maybe you would you like our help bringing...
Quick view
Cubic Zirconia Engagement Ring- Customer Designed Style 2641

Cubic Zirconia Engagement Ring- Customer Designed Style 2641

From $751.49 USD
This "customer designed" product was designed with the help of one customer through our "Design Your Own" custom cubic zirconia jewelry program. Maybe you would you like our help bringing...
Quick view
Cubic Zirconia Engagement Ring- Customer Designed Style 2901

Cubic Zirconia Engagement Ring- Customer Designed Style 2901

From $365.36 USD
This "customer designed" product was designed with the help of one customer through our "Design Your Own" custom cubic zirconia jewelry program. Maybe you would you like our help bringing...
Quick view
Cubic Zirconia Engagement Ring- Customer Designed Style 5219

Cubic Zirconia Engagement Ring- Customer Designed Style 5219

From $485.91 USD
This "customer designed" product was designed with the help of one customer through our "Design Your Own" custom cubic zirconia jewelry program. Maybe you would you like our help bringing...
Quick view
Cubic Zirconia Engagement Ring- Customer Designed Style 7630

Cubic Zirconia Engagement Ring- Customer Designed Style 7630

From $410.82 USD
This "customer designed" product was designed with the help of one customer through our "Design Your Own" custom cubic zirconia jewelry program. Maybe you would you like our help bringing...
Quick view
Cubic Zirconia Engagement Ring- The Adalynn (Customizable Cathedral-Bezel Asscher Cut Style with Under-halo and Shared Prong Band)

Cubic Zirconia Engagement Ring- The Adalynn (Customizable Cathedral-Bezel Asscher Cut Style with Under-halo and Shared Prong Band)

From $549.51 USD
SURPRISE! Someone should call Oprah Winfrey about The Adalynn engagement ring, because she's so full of surprises and so is this cathedral-raised, bezel-set Asscher cut ring style. In fact, we'd...
Quick view
Cubic Zirconia Engagement Ring- The Adalynn (Customizable Cathedral-Bezel Cushion Cut Style with Under-halo and Shared Prong Band)

Cubic Zirconia Engagement Ring- The Adalynn (Customizable Cathedral-Bezel Cushion Cut Style with Under-halo and Shared Prong Band)

From $545.51 USD
SURPRISE! Someone should call Oprah Winfrey about The Adalynn engagement ring, because she's so full of surprises and so is this cathedral-raised, bezel-set Cushion cut ring style. In fact, we'd...
Quick view
Cubic Zirconia Engagement Ring- The Adalynn (Customizable Cathedral-Bezel Emerald Cut Style with Under-halo and Shared Prong Band)

Cubic Zirconia Engagement Ring- The Adalynn (Customizable Cathedral-Bezel Emerald Cut Style with Under-halo and Shared Prong Band)

From $562.12 USD
SURPRISE! Someone should call Oprah Winfrey about The Adalynn engagement ring, because she's so full of surprises and so is this cathedral-raised, bezel-set Emerald cut ring style. In fact, we'd...
Quick view
Cubic Zirconia Engagement Ring- The Adalynn (Customizable Cathedral-Bezel Marquise Cut Style with Under-halo and Shared Prong Band)

Cubic Zirconia Engagement Ring- The Adalynn (Customizable Cathedral-Bezel Marquise Cut Style with Under-halo and Shared Prong Band)

From $611.29 USD
SURPRISE! Someone should call Oprah Winfrey about The Adalynn engagement ring, because she's so full of surprises and so is this cathedral-raised, bezel-set Marquise cut ring style. In fact, we'd...
Quick view
Cubic Zirconia Engagement Ring- The Adalynn (Customizable Cathedral-Bezel Oval Cut Style with Under-halo and Shared Prong Band)

Cubic Zirconia Engagement Ring- The Adalynn (Customizable Cathedral-Bezel Oval Cut Style with Under-halo and Shared Prong Band)

From $563.99 USD
SURPRISE! Someone should call Oprah Winfrey about The Adalynn engagement ring, because she's so full of surprises and so is this cathedral-raised, bezel-set Oval cut ring style. In fact, we'd...
Quick view
Cubic Zirconia Engagement Ring- The Adalynn (Customizable Cathedral-Bezel Princess/Square Cut Style with Under-halo and Shared Prong Band)

Cubic Zirconia Engagement Ring- The Adalynn (Customizable Cathedral-Bezel Princess/Square Cut Style with Under-halo and Shared Prong Band)

From $590.41 USD
SURPRISE! Someone should call Oprah Winfrey about The Adalynn engagement ring, because she's so full of surprises and so is this cathedral-raised, bezel-set Princess/Square cut ring style. In fact, we'd...
Quick view
Cubic Zirconia Engagement Ring- The Adalynn (Customizable Cathedral-Bezel Radiant Cut Style with Under-halo and Shared Prong Band)

Cubic Zirconia Engagement Ring- The Adalynn (Customizable Cathedral-Bezel Radiant Cut Style with Under-halo and Shared Prong Band)

From $562.12 USD
SURPRISE! Someone should call Oprah Winfrey about The Adalynn engagement ring, because she's so full of surprises and so is this cathedral-raised, bezel-set Radiant cut ring style. In fact, we'd...
Quick view
Cubic Zirconia Engagement Ring- The Adalynn (Customizable Cathedral-Bezel Round Cut Style with Under-halo and Shared Prong Band)

Cubic Zirconia Engagement Ring- The Adalynn (Customizable Cathedral-Bezel Round Cut Style with Under-halo and Shared Prong Band)

From $578.60 USD
SURPRISE! Someone should call Oprah Winfrey about The Adalynn engagement ring, because she's so full of surprises and so is this cathedral-raised, bezel-set Round cut ring style. In fact, we'd...
Quick view
Cubic Zirconia Engagement Ring- The Adele (Customizable 7-stone Cushion Cut Design with Tri-Cluster Accents and Teardrop Fleur-de-lis Motif)

Cubic Zirconia Engagement Ring- The Adele (Customizable 7-stone Cushion Cut Design with Tri-Cluster Accents and Teardrop Fleur-de-lis Motif)

From $313.86 USD
  Hello, dear reader. Mr. Cubic Zirconia here to write this product description today...I hope you won't give me the cold shoulder; please permit me a moment of your time...
Quick view
Cubic Zirconia Engagement Ring- The Adele (Customizable 7-stone Emerald Cut Design with Tri-Cluster Accents and Teardrop Fleur-de-lis Motif)

Cubic Zirconia Engagement Ring- The Adele (Customizable 7-stone Emerald Cut Design with Tri-Cluster Accents and Teardrop Fleur-de-lis Motif)

From $331.52 USD
  Hello, dear reader. Mr. Cubic Zirconia here to write this product description today...I hope you won't give me the cold shoulder; please permit me a moment of your time...
Quick view
Cubic Zirconia Engagement Ring- The Adele (Customizable 7-stone Oval Cut Design with Tri-Cluster Accents and Teardrop Fleur-de-lis Motif)

Cubic Zirconia Engagement Ring- The Adele (Customizable 7-stone Oval Cut Design with Tri-Cluster Accents and Teardrop Fleur-de-lis Motif)

From $333.35 USD
  Hello, dear reader. Mr. Cubic Zirconia here to write this product description today...I hope you won't give me the cold shoulder; please permit me a moment of your time...
Quick view
Cubic Zirconia Engagement Ring- The Adele (Customizable 7-stone Pear Cut Design with Tri-Cluster Accents and Teardrop Fleur-de-lis Motif)

Cubic Zirconia Engagement Ring- The Adele (Customizable 7-stone Pear Cut Design with Tri-Cluster Accents and Teardrop Fleur-de-lis Motif)

From $333.14 USD
  Hello, dear reader. Mr. Cubic Zirconia here to write this product description today...I hope you won't give me the cold shoulder; please permit me a moment of your time...
Quick view
Cubic Zirconia Engagement Ring- The Adele (Customizable 7-stone Princess/Square Cut Design with Tri-Cluster Accents and Teardrop Fleur-de-lis Motif)

Cubic Zirconia Engagement Ring- The Adele (Customizable 7-stone Princess/Square Cut Design with Tri-Cluster Accents and Teardrop Fleur-de-lis Motif)

From $325.92 USD
  Hello, dear reader. Mr. Cubic Zirconia here to write this product description today...I hope you won't give me the cold shoulder; please permit me a moment of your time...
Quick view
Cubic Zirconia Engagement Ring- The Adele (Customizable 7-stone Radiant Cut Design with Tri-Cluster Accents and Teardrop Fleur-de-lis Motif)

Cubic Zirconia Engagement Ring- The Adele (Customizable 7-stone Radiant Cut Design with Tri-Cluster Accents and Teardrop Fleur-de-lis Motif)

From $331.52 USD
  Hello, dear reader. Mr. Cubic Zirconia here to write this product description today...I hope you won't give me the cold shoulder; please permit me a moment of your time...
Quick view
Cubic Zirconia Engagement Ring- The Adele (Customizable 7-stone Round Cut Design with Tri-Cluster Accents and Teardrop Fleur-de-lis Motif)

Cubic Zirconia Engagement Ring- The Adele (Customizable 7-stone Round Cut Design with Tri-Cluster Accents and Teardrop Fleur-de-lis Motif)

From $350.02 USD
  Hello, dear reader. Mr. Cubic Zirconia here to write this product description today...I hope you won't give me the cold shoulder; please permit me a moment of your time...
Quick view
Cubic Zirconia Engagement Ring- The Adoración (Customizable Cushion Cut Style with Halo and Twin Round Bezel Accents)

Cubic Zirconia Engagement Ring- The Adoración (Customizable Cushion Cut Style with Halo and Twin Round Bezel Accents)

From $511.70 USD
The original version of The Adoración ring was discovered by a member of our product design team in Merida, the cosmopolitan center of the Yucatan peninsula. Known as La Ciudad...
Quick view
Cubic Zirconia Engagement Ring- The Adoración (Customizable Emerald Cut Style with Halo and Twin Round Bezel Accents)

Cubic Zirconia Engagement Ring- The Adoración (Customizable Emerald Cut Style with Halo and Twin Round Bezel Accents)

From $529.12 USD
The original version of The Adoración ring was discovered by a member of our product design team in Merida, the cosmopolitan center of the Yucatan peninsula. Known as La Ciudad...
Quick view
Cubic Zirconia Engagement Ring- The Adoración (Customizable Oval Cut Style with Halo and Twin Round Bezel Accents)

Cubic Zirconia Engagement Ring- The Adoración (Customizable Oval Cut Style with Halo and Twin Round Bezel Accents)

From $508.92 USD
The original version of The Adoración ring was discovered by a member of our product design team in Merida, the cosmopolitan center of the Yucatan peninsula. Known as La Ciudad...
Quick view
Cubic Zirconia Engagement Ring- The Adoración (Customizable Pear Cut Style with Halo and Twin Round Bezel Accents)

Cubic Zirconia Engagement Ring- The Adoración (Customizable Pear Cut Style with Halo and Twin Round Bezel Accents)

From $508.79 USD
The original version of The Adoración ring was discovered by a member of our product design team in Merida, the cosmopolitan center of the Yucatan peninsula. Known as La Ciudad...
Quick view
Cubic Zirconia Engagement Ring- The Adoración (Customizable Princess/Square Cut Style with Halo and Twin Round Bezel Accents)

Cubic Zirconia Engagement Ring- The Adoración (Customizable Princess/Square Cut Style with Halo and Twin Round Bezel Accents)

From $568.42 USD
The original version of The Adoración ring was discovered by a member of our product design team in Merida, the cosmopolitan center of the Yucatan peninsula. Known as La Ciudad...
Quick view
Cubic Zirconia Engagement Ring- The Adoración (Customizable Radiant Cut Style with Halo and Twin Round Bezel Accents)

Cubic Zirconia Engagement Ring- The Adoración (Customizable Radiant Cut Style with Halo and Twin Round Bezel Accents)

From $529.12 USD
The original version of The Adoración ring was discovered by a member of our product design team in Merida, the cosmopolitan center of the Yucatan peninsula. Known as La Ciudad...
Quick view
Cubic Zirconia Engagement Ring- The Adoración (Customizable Round Cut Style with Halo and Twin Round Bezel Accents)

Cubic Zirconia Engagement Ring- The Adoración (Customizable Round Cut Style with Halo and Twin Round Bezel Accents)

From $536.44 USD
The original version of The Adoración ring was discovered by a member of our product design team in Merida, the cosmopolitan center of the Yucatan peninsula. Known as La Ciudad...
Quick view
Cubic Zirconia Engagement Ring- The Agatha (Customizable Asscher Cut Style with Halo and Thin Shared Prong Band)

Cubic Zirconia Engagement Ring- The Agatha (Customizable Asscher Cut Style with Halo and Thin Shared Prong Band)

From $622.99 USD
Classically styled, The Agatha's simple details subtly underlie a piece of jewelry with regal nature, and a history of goodness. Your beloved, like The Agatha, is steadfast, with a wholesome...
Quick view
Cubic Zirconia Engagement Ring- The Agatha (Customizable Cushion Cut Style with Halo and Thin Shared Prong Band)

Cubic Zirconia Engagement Ring- The Agatha (Customizable Cushion Cut Style with Halo and Thin Shared Prong Band)

From $619.99 USD
Classically styled, The Agatha's simple details subtly underlie a piece of jewelry with regal nature, and a history of goodness. Your beloved, like The Agatha, is steadfast, with a wholesome...
Quick view
Cubic Zirconia Engagement Ring- The Agatha (Customizable Princess/Square Cut Style with Halo and Thin Shared Prong Band)

Cubic Zirconia Engagement Ring- The Agatha (Customizable Princess/Square Cut Style with Halo and Thin Shared Prong Band)

From $602.58 USD
Classically styled, The Agatha's simple details subtly underlie a piece of jewelry with regal nature, and a history of goodness. Your beloved, like The Agatha, is steadfast, with a wholesome...
Quick view
Cubic Zirconia Engagement Ring- The Agatha (Customizable Round Cut Style with Halo and Thin Shared Prong Band)

Cubic Zirconia Engagement Ring- The Agatha (Customizable Round Cut Style with Halo and Thin Shared Prong Band)

From $634.46 USD
Classically styled, The Agatha's simple details subtly underlie a piece of jewelry with regal nature, and a history of goodness. Your beloved, like The Agatha, is steadfast, with a wholesome...
Quick view
Cubic Zirconia Engagement Ring- The Aimi Namiko (Customizable 3-stone Design with Asscher Cut Center, Cushion Side Stones, Triple Halo and Bridge Under-halo)

Cubic Zirconia Engagement Ring- The Aimi Namiko (Customizable 3-stone Design with Asscher Cut Center, Cushion Side Stones, Triple Halo and Bridge Under-halo)

From $877.81 USD
We're very proud of our jewelry design team's ability to provide a twist on the traditional engagement ring styles that just might express how you feel about her better than...
Quick view
Cubic Zirconia Engagement Ring- The Aimi Namiko (Customizable 3-stone Design with Cushion Cut Center, Cushion Side Stones, Triple Halo and Bridge Under-halo)

Cubic Zirconia Engagement Ring- The Aimi Namiko (Customizable 3-stone Design with Cushion Cut Center, Cushion Side Stones, Triple Halo and Bridge Under-halo)

From $763.80 USD
We're very proud of our jewelry design team's ability to provide a twist on the traditional engagement ring styles that just might express how you feel about her better than...
Quick view
Cubic Zirconia Engagement Ring- The Aimi Namiko (Customizable 3-stone Design with Emerald Cut Center, Cushion Side Stones, Triple Halo and Bridge Under-halo)

Cubic Zirconia Engagement Ring- The Aimi Namiko (Customizable 3-stone Design with Emerald Cut Center, Cushion Side Stones, Triple Halo and Bridge Under-halo)

From $921.41 USD
We're very proud of our jewelry design team's ability to provide a twist on the traditional engagement ring styles that just might express how you feel about her better than...
Quick view
Cubic Zirconia Engagement Ring- The Aimi Namiko (Customizable 3-stone Design with Oval Cut Center, Cushion Side Stones, Triple Halo and Bridge Under-halo)

Cubic Zirconia Engagement Ring- The Aimi Namiko (Customizable 3-stone Design with Oval Cut Center, Cushion Side Stones, Triple Halo and Bridge Under-halo)

From $921.46 USD
We're very proud of our jewelry design team's ability to provide a twist on the traditional engagement ring styles that just might express how you feel about her better than...
Quick view
Cubic Zirconia Engagement Ring- The Aimi Namiko (Customizable 3-stone Design with Princess/Square Cut Center, Cushion Side Stones, Triple Halo and Bridge Under-halo)

Cubic Zirconia Engagement Ring- The Aimi Namiko (Customizable 3-stone Design with Princess/Square Cut Center, Cushion Side Stones, Triple Halo and Bridge Under-halo)

From $893.30 USD
We're very proud of our jewelry design team's ability to provide a twist on the traditional engagement ring styles that just might express how you feel about her better than...
Quick view
Cubic Zirconia Engagement Ring- The Aimi Namiko (Customizable 3-stone Design with Radiant Cut Center, Cushion Side Stones, Triple Halo and Bridge Under-halo)

Cubic Zirconia Engagement Ring- The Aimi Namiko (Customizable 3-stone Design with Radiant Cut Center, Cushion Side Stones, Triple Halo and Bridge Under-halo)

From $921.41 USD
We're very proud of our jewelry design team's ability to provide a twist on the traditional engagement ring styles that just might express how you feel about her better than...
Quick view
Cubic Zirconia Engagement Ring- The Aimi Namiko (Customizable 3-stone Design with Round Cut Center, Cushion Side Stones, Triple Halo and Bridge Under-halo)

Cubic Zirconia Engagement Ring- The Aimi Namiko (Customizable 3-stone Design with Round Cut Center, Cushion Side Stones, Triple Halo and Bridge Under-halo)

From $927.56 USD
We're very proud of our jewelry design team's ability to provide a twist on the traditional engagement ring styles that just might express how you feel about her better than...
Quick view
Cubic Zirconia Engagement Ring- The Alekhya (Customizable Cathedral-Bezel Asscher Cut Design with Halo, Split-Pavé Band & Channel Baguettes)

Cubic Zirconia Engagement Ring- The Alekhya (Customizable Cathedral-Bezel Asscher Cut Design with Halo, Split-Pavé Band & Channel Baguettes)

From $785.43 USD
We see the landscape of your relationship illustrated in vibrant living colors. She's yours. You're hers. The two of you belong together like the dual 5.00 x 2.00 mm channel-set...
Quick view
You've viewed 40 of 425 products
Load More

US Size 4.00 Cubic Zirconia Rings

This product collection has the CubicZirconia.com rings, engagement rings and wedding bands that can be manufactured in a U.S. finger ring size of 4.00.

You can see all available cubic zirconia ring sizes here, and filter our rings product catalog by any specific US ring size number. 

Not sure what your finger ring size actually is? Click here for tips and/or order our ring sizing kit to check. We can also help you with sneaky ninja tips to find what her finger ring size is for a confidential surprise gift without her knowing what you're doing!

If you're outside the United States, Canada and Mexico-- which all use the U.S. ring sizing system used primarily on this website store-- then maybe you need our international ring size chart to convert your known international ring size into a U.S. ring size.