Diamond Z4 Reviews

Diamond Z4
( 5 reviews )

The Diamond Z4 is an "As Seen on TV" jewelry piece that includes a 2.75 carat CZ center stone with more than 1.25 carats of round and tapered Diamond-Z4 baguettes.

How Does It Work?

The Diamond Z4 is a specially cut cubic zirconia which is designed to meet the standards of a real, mined diamond as closely as possibly.

When you order it, you will receive a certificate of authenticity that qualifies it as a Diamond-Z4 instead of a standard CZ.

Cost & Price Plans

The original Diamond-Z4 ring costs $20, plus a $6.99 Shipping and Handling fee.

If you choose to include the matching band, that will be an extra cost of $9.99. The website is unclear as to whether the matching band also includes a Shipping and Handling fee.

Refund Policy

The website states they offer a 30 day money back guarantee as long as their product is returned within this window.

Unfortunately the website doesn't really detail this policy; concerned customers may want to contact Customer Service before purchase.

Customer Service Contact Info

Customers who have questions, issues, or complaints can contact their Customer Service by phone at (855) 235-2092.

There is no email address available for contact, but there is a mailing address listed as 79 Two Bridges Road, Fairfield, NJ 07004.


There are not very many reviews regarding this product but those that are out there are not that great, unfortunately.

Some customers complained about the quality of the ring, but most complaints had to do with the extended time it took to receive the ring and other complaints regarded billing issues.

Is It Safe?

There were some complaints regarding double billing and other billing issues that were difficult to get straightened out.

Customers who are concerned should pay close attention to their accounts to ensure this doesn't happen to them. 

Competitors and Alternatives?

Cubic zirconia rings are available at many different accessories stores and major retailers like Target and Walmart, as well as at a few high end jewelry retailers as well.
If you have any experience with the Diamond Z4 ring, please leave your reviews below.

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Diamond Z4 Customer Reviews

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The cz stones on the rings are still as brilliant as when I bought them in 2013.
June 7, 2023
I bought my cz wedding set in May 2013 and have never had any problems with band tarnishing, loose cz stones or fading. The stones are still as brilliant as when I purchased the wedding set. After 10 years I’m still very pleased with my purchase.

No match for the real thing
October 24, 2022

I bought the ring and band.

They look like someone took diamonds and put them under water.

High end Swarovski crystals shine 100x more.

Based on my honest opinion, I would recommend that more ladies purchase the ring set, or the men purchase these for their wives or girlfriends.
June 5, 2022
I have had my diamond Z4 ring set for many years now, and I get compliments every time I wear them. I have recently moved out of my apartment and misplaced the wedding ring, but I still have the engagement ring...I love these rings, as they are very flattering to wear, especially when I am alone and don't want to be bothered by men's sexual advances.

May 15, 2020

I ordered on April 22,2020 .... STILL don't have it

Have called on hold forever and then it disconnects and I left a message on the Bulbhead website to call me.. nothing.. not impressed. They need to get a hold of me ASAP! Thinking about a lawyer...

linda fuller
September 3, 2018
iwas so happy when i got my ring set, it looks so real. just want everyone out there it is a real deal.