US Size 4.00

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Cubic Zirconia Engagement Ring- Customer Designed Style 3729 The Crystal Marie

Cubic Zirconia Engagement Ring- Customer Designed Style 3729 The Crystal Marie

From $1,030.08 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...
Cubic Zirconia Engagement Ring- The Brenna (Customizable 3-stone with Love Knots Artisan Band)

Cubic Zirconia Engagement Ring- The Brenna (Customizable 3-stone with Love Knots Artisan Band)

From $239.70 USD
Looking for the perfect proposal ring for that perfect person for you? Few things in life can be as precious as your loved one, and the engagement ring that you...
Cubic Zirconia Engagement Ring- The Carrington (Customizable Cathedral-set Cushion Cut Solitaire with Thin Rope-Twist Band)

Cubic Zirconia Engagement Ring- The Carrington (Customizable Cathedral-set Cushion Cut Solitaire with Thin Rope-Twist Band)

From $246.38 USD
There's a lot of pressure in relationships around using the 'L' word for the first time. For a fly on the wall, can you imagine any conversation much more amazing...
Cubic Zirconia Engagement Ring- The Carrington (Customizable Cathedral-set Emerald Cut Solitaire with Thin Rope-Twist Band)

Cubic Zirconia Engagement Ring- The Carrington (Customizable Cathedral-set Emerald Cut Solitaire with Thin Rope-Twist Band)

From $240.53 USD
There's a lot of pressure in relationships around using the 'L' word for the first time. For a fly on the wall, can you imagine any conversation much more amazing...
Cubic Zirconia Engagement Ring- The Carrington (Customizable Cathedral-set Oval Cut Solitaire with Thin Rope-Twist Band)

Cubic Zirconia Engagement Ring- The Carrington (Customizable Cathedral-set Oval Cut Solitaire with Thin Rope-Twist Band)

From $240.66 USD
There's a lot of pressure in relationships around using the 'L' word for the first time. For a fly on the wall, can you imagine any conversation much more amazing...
Cubic Zirconia Engagement Ring- The Carrington (Customizable Cathedral-set Princess/Square Cut Solitaire with Thin Rope-Twist Band)

Cubic Zirconia Engagement Ring- The Carrington (Customizable Cathedral-set Princess/Square Cut Solitaire with Thin Rope-Twist Band)

From $266.15 USD
There's a lot of pressure in relationships around using the 'L' word for the first time. For a fly on the wall, can you imagine any conversation much more amazing...
Cubic Zirconia Engagement Ring- The Carrington (Customizable Cathedral-set Radiant Cut Solitaire with Thin Rope-Twist Band)

Cubic Zirconia Engagement Ring- The Carrington (Customizable Cathedral-set Radiant Cut Solitaire with Thin Rope-Twist Band)

From $240.53 USD
There's a lot of pressure in relationships around using the 'L' word for the first time. For a fly on the wall, can you imagine any conversation much more amazing...
Cubic Zirconia Engagement Ring- The Carrington (Customizable Cathedral-set Round Cut Solitaire with Thin Rope-Twist Band)

Cubic Zirconia Engagement Ring- The Carrington (Customizable Cathedral-set Round Cut Solitaire with Thin Rope-Twist Band)

From $290.18 USD
There's a lot of pressure in relationships around using the 'L' word for the first time. For a fly on the wall, can you imagine any conversation much more amazing...
Cubic Zirconia Engagement Ring- The Lana (Customizable Cathedral-raised Asscher Cut Design with Floral/Knot Halo and Thin Accented Band)

Cubic Zirconia Engagement Ring- The Lana (Customizable Cathedral-raised Asscher Cut Design with Floral/Knot Halo and Thin Accented Band)

From $374.33 USD
The Lana catches the light very well (warning: while most will think it's classy; some few others will instead instead think 'gaudy'). We designed her for the former. The raised...
Cubic Zirconia Engagement Ring- The Lana (Customizable Cathedral-raised Cushion Cut Design with Floral/Knot Halo and Thin Accented Band)

Cubic Zirconia Engagement Ring- The Lana (Customizable Cathedral-raised Cushion Cut Design with Floral/Knot Halo and Thin Accented Band)

From $370.21 USD
The Lana catches the light very well (warning: while most will think it's classy; some few others will instead instead think 'gaudy'). We designed her for the former. The raised...
Cubic Zirconia Engagement Ring- The Lana (Customizable Cathedral-raised Princess/Square Cut Design with Floral/Knot Halo and Thin Accented Band)

Cubic Zirconia Engagement Ring- The Lana (Customizable Cathedral-raised Princess/Square Cut Design with Floral/Knot Halo and Thin Accented Band)

From $421.97 USD
The Lana catches the light very well (warning: while most will think it's classy; some few others will instead instead think 'gaudy'). We designed her for the former. The raised...
Cubic Zirconia Engagement Ring- The Lana (Customizable Cathedral-raised Round Cut Design with Floral/Knot Halo and Thin Accented Band)

Cubic Zirconia Engagement Ring- The Lana (Customizable Cathedral-raised Round Cut Design with Floral/Knot Halo and Thin Accented Band)

From $440.80 USD
The Lana catches the light very well (warning: while most will think it's classy; some few others will instead instead think 'gaudy'). We designed her for the former. The raised...
Cubic Zirconia Engagement Ring- The Montana (Customizable Emerald Cut Design with Intricate Over-Under-Around Pavé Accented Band)

Cubic Zirconia Engagement Ring- The Montana (Customizable Emerald Cut Design with Intricate Over-Under-Around Pavé Accented Band)

From $1,036.28 USD
She is your strength and your raison d'etre. She crowns the mountain in your life, standing resolutely as a timeless woman making a timeless promise that your journey upward together...
Cubic Zirconia Engagement Ring- The Montana (Customizable Oval Cut Design with Intricate Over-Under-Around Pavé Accented Band)

Cubic Zirconia Engagement Ring- The Montana (Customizable Oval Cut Design with Intricate Over-Under-Around Pavé Accented Band)

From $911.17 USD
She is your strength and your raison d'etre. She crowns the mountain in your life, standing resolutely as a timeless woman making a timeless promise that your journey upward together...
Cubic Zirconia Engagement Ring- The Montana (Customizable Princess/Square Cut Design with Intricate Over-Under-Around Pavé Accented Band)

Cubic Zirconia Engagement Ring- The Montana (Customizable Princess/Square Cut Design with Intricate Over-Under-Around Pavé Accented Band)

From $949.08 USD
She is your strength and your raison d'etre. She crowns the mountain in your life, standing resolutely as a timeless woman making a timeless promise that your journey upward together...
Cubic Zirconia Engagement Ring- The Montana (Customizable Radiant Cut Design with Intricate Over-Under-Around Pavé Accented Band)

Cubic Zirconia Engagement Ring- The Montana (Customizable Radiant Cut Design with Intricate Over-Under-Around Pavé Accented Band)

From $1,036.28 USD
She is your strength and your raison d'etre. She crowns the mountain in your life, standing resolutely as a timeless woman making a timeless promise that your journey upward together...
Cubic Zirconia Engagement Ring- The Montana (Customizable Round Cut Design with Intricate Over-Under-Around Pavé Accented Band)

Cubic Zirconia Engagement Ring- The Montana (Customizable Round Cut Design with Intricate Over-Under-Around Pavé Accented Band)

From $919.46 USD
She is your strength and your raison d'etre. She crowns the mountain in your life, standing resolutely as a timeless woman making a timeless promise that your journey upward together...
Cubic Zirconia Engagement Ring- The Myra (Customizable Asscher Cut Split-Band Knots)

Cubic Zirconia Engagement Ring- The Myra (Customizable Asscher Cut Split-Band Knots)

From $772.81 USD
This split-band pave-style engagement ring with flowing lines and organic curves that appear like "tying the knot"-style knots fashioned out of the metal of your choice is constructed with one...
Cubic Zirconia Engagement Ring- The Myra (Customizable Cushion Cut Split-Band Knots)

Cubic Zirconia Engagement Ring- The Myra (Customizable Cushion Cut Split-Band Knots)

From $768.14 USD
This split-band pave-style engagement ring with flowing lines and organic curves that appear like "tying the knot"-style knots fashioned out of the metal of your choice is constructed with one...
Cubic Zirconia Engagement Ring- The Myra (Customizable Emerald Cut Split-Band Knots)

Cubic Zirconia Engagement Ring- The Myra (Customizable Emerald Cut Split-Band Knots)

From $768.79 USD
This split-band pave-style engagement ring with flowing lines and organic curves that appear like "tying the knot"-style knots fashioned out of the metal of your choice is constructed with one...
Cubic Zirconia Engagement Ring- The Myra (Customizable Heart Cut Split-Band Knots)

Cubic Zirconia Engagement Ring- The Myra (Customizable Heart Cut Split-Band Knots)

From $764.76 USD
This split-band pave-style engagement ring with flowing lines and organic curves that appear like "tying the knot"-style knots fashioned out of the metal of your choice is constructed with one...
Cubic Zirconia Engagement Ring- The Myra (Customizable Marquise Cut Split-Band Knots)

Cubic Zirconia Engagement Ring- The Myra (Customizable Marquise Cut Split-Band Knots)

From $784.24 USD
This split-band pave-style engagement ring with flowing lines and organic curves that appear like "tying the knot"-style knots fashioned out of the metal of your choice is constructed with one...
Cubic Zirconia Engagement Ring- The Myra (Customizable Oval Cut Split-Band Knots)

Cubic Zirconia Engagement Ring- The Myra (Customizable Oval Cut Split-Band Knots)

From $767.39 USD
This split-band pave-style engagement ring with flowing lines and organic curves that appear like "tying the knot"-style knots fashioned out of the metal of your choice is constructed with one...
Cubic Zirconia Engagement Ring- The Myra (Customizable Pear Cut Split-Band Knots)

Cubic Zirconia Engagement Ring- The Myra (Customizable Pear Cut Split-Band Knots)

From $766.81 USD
This split-band pave-style engagement ring with flowing lines and organic curves that appear like "tying the knot"-style knots fashioned out of the metal of your choice is constructed with one...
Cubic Zirconia Engagement Ring- The Myra (Customizable Princess Cut Split-Band Knots)

Cubic Zirconia Engagement Ring- The Myra (Customizable Princess Cut Split-Band Knots)

From $740.11 USD
This split-band pave-style engagement ring with flowing lines and organic curves that appear like "tying the knot"-style knots fashioned out of the metal of your choice is constructed with one...
Cubic Zirconia Engagement Ring- The Myra (Customizable Radiant Cut Split-Band Knots)

Cubic Zirconia Engagement Ring- The Myra (Customizable Radiant Cut Split-Band Knots)

From $768.79 USD
This split-band pave-style engagement ring with flowing lines and organic curves that appear like "tying the knot"-style knots fashioned out of the metal of your choice is constructed with one...
Cubic Zirconia Engagement Ring- The Myra (Customizable Round Cut Split-Band Knots)

Cubic Zirconia Engagement Ring- The Myra (Customizable Round Cut Split-Band Knots)

From $751.75 USD
This split-band pave-style engagement ring with flowing lines and organic curves that appear like "tying the knot"-style knots fashioned out of the metal of your choice is constructed with one...
Cubic Zirconia Engagement Ring- The Nairobi (Customizable Bar-set Asscher Cut 5-stone Design Plus Grandiose Pavé Accents)

Cubic Zirconia Engagement Ring- The Nairobi (Customizable Bar-set Asscher Cut 5-stone Design Plus Grandiose Pavé Accents)

From $1,112.53 USD
The Nairobi River's special waters run through the Kenyan city that bears its Maasai name. Having given life through agriculture since ancient times, it's still the lifeblood of today's cosmopolitan...
Cubic Zirconia Engagement Ring- The Nairobi (Customizable Bar-set Cushion Cut 5-stone Design Plus Grandiose Pavé Accents)

Cubic Zirconia Engagement Ring- The Nairobi (Customizable Bar-set Cushion Cut 5-stone Design Plus Grandiose Pavé Accents)

From $947.27 USD
The Nairobi River's special waters run through the Kenyan city that bears its Maasai name. Having given life through agriculture since ancient times, it's still the lifeblood of today's cosmopolitan...
Cubic Zirconia Engagement Ring- The Nairobi (Customizable Bar-set Emerald Cut 5-stone Design Plus Grandiose Pavé Accents)

Cubic Zirconia Engagement Ring- The Nairobi (Customizable Bar-set Emerald Cut 5-stone Design Plus Grandiose Pavé Accents)

From $993.27 USD
The Nairobi River's special waters run through the Kenyan city that bears its Maasai name. Having given life through agriculture since ancient times, it's still the lifeblood of today's cosmopolitan...
Cubic Zirconia Engagement Ring- The Nairobi (Customizable Bar-set Oval Cut 5-stone Design Plus Grandiose Pavé Accents)

Cubic Zirconia Engagement Ring- The Nairobi (Customizable Bar-set Oval Cut 5-stone Design Plus Grandiose Pavé Accents)

From $956.53 USD
The Nairobi River's special waters run through the Kenyan city that bears its Maasai name. Having given life through agriculture since ancient times, it's still the lifeblood of today's cosmopolitan...
Cubic Zirconia Engagement Ring- The Nairobi (Customizable Bar-set Radiant Cut 5-stone Design Plus Grandiose Pavé Accents)

Cubic Zirconia Engagement Ring- The Nairobi (Customizable Bar-set Radiant Cut 5-stone Design Plus Grandiose Pavé Accents)

From $993.27 USD
The Nairobi River's special waters run through the Kenyan city that bears its Maasai name. Having given life through agriculture since ancient times, it's still the lifeblood of today's cosmopolitan...
Cubic Zirconia Engagement Ring- The Nairobi (Customizable Bar-set Round Cut 5-stone Design Plus Grandiose Pavé Accents)

Cubic Zirconia Engagement Ring- The Nairobi (Customizable Bar-set Round Cut 5-stone Design Plus Grandiose Pavé Accents)

From $969.22 USD
The Nairobi River's special waters run through the Kenyan city that bears its Maasai name. Having given life through agriculture since ancient times, it's still the lifeblood of today's cosmopolitan...
Cubic Zirconia Engagement Ring- The Priscilla

Cubic Zirconia Engagement Ring- The Priscilla

From $196.90 USD
Get The Priscilla engagement ring alone or together with the matching anniversary band to complete the wedding set. Carat Weight: Choose your center stone weight using the drop-down menu below...
Cubic Zirconia Engagement Ring- The Shanice (Customizable Asscher Cut Artisan Design with Scalloped, Round-Accented Band and Milgrain Detail)

Cubic Zirconia Engagement Ring- The Shanice (Customizable Asscher Cut Artisan Design with Scalloped, Round-Accented Band and Milgrain Detail)

From $414.83 USD
It seems that everyone and everything good is magnetically drawn to her. And why not? The Shanice engagement ring from CubicZirconia.com features just what you love about the classic solitaire,...
Cubic Zirconia Engagement Ring- The Shanice (Customizable Cushion Cut Artisan Design with Scalloped, Round-Accented Band and Milgrain Detail)

Cubic Zirconia Engagement Ring- The Shanice (Customizable Cushion Cut Artisan Design with Scalloped, Round-Accented Band and Milgrain Detail)

From $410.97 USD
It seems that everyone and everything good is magnetically drawn to her. And why not? The Shanice engagement ring from CubicZirconia.com features just what you love about the classic solitaire,...
Cubic Zirconia Engagement Ring- The Shanice (Customizable Emerald Cut Artisan Design with Scalloped, Round-Accented Band and Milgrain Detail)

Cubic Zirconia Engagement Ring- The Shanice (Customizable Emerald Cut Artisan Design with Scalloped, Round-Accented Band and Milgrain Detail)

From $428.38 USD
It seems that everyone and everything good is magnetically drawn to her. And why not? The Shanice engagement ring from CubicZirconia.com features just what you love about the classic solitaire,...
Cubic Zirconia Engagement Ring- The Shanice (Customizable Heart Cut Artisan Design with Scalloped, Round-Accented Band and Milgrain Detail)

Cubic Zirconia Engagement Ring- The Shanice (Customizable Heart Cut Artisan Design with Scalloped, Round-Accented Band and Milgrain Detail)

From $405.27 USD
It seems that everyone and everything good is magnetically drawn to her. And why not? The Shanice engagement ring from CubicZirconia.com features just what you love about the classic solitaire,...
Cubic Zirconia Engagement Ring- The Shanice (Customizable Marquise Cut Artisan Design with Scalloped, Round-Accented Band and Milgrain Detail)

Cubic Zirconia Engagement Ring- The Shanice (Customizable Marquise Cut Artisan Design with Scalloped, Round-Accented Band and Milgrain Detail)

From $402.88 USD
It seems that everyone and everything good is magnetically drawn to her. And why not? The Shanice engagement ring from CubicZirconia.com features just what you love about the classic solitaire,...
Cubic Zirconia Engagement Ring- The Shanice (Customizable Oval Cut Artisan Design with Scalloped, Round-Accented Band and Milgrain Detail)

Cubic Zirconia Engagement Ring- The Shanice (Customizable Oval Cut Artisan Design with Scalloped, Round-Accented Band and Milgrain Detail)

From $430.23 USD
It seems that everyone and everything good is magnetically drawn to her. And why not? The Shanice engagement ring from CubicZirconia.com features just what you love about the classic solitaire,...

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.