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Mailing Address:

26497 Rancho Parkway South | Lake Forest, CA | 92630

Product Support & General Inquiry:


Sales Support:


Warranty Info

At LIQUIDIAMOND Knives, we believe in standing behind our products. Therefore, we offer a limited lifetime warranty on all of our knife products. Please complete and submit the form below to register your product(s).

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The warranty covers all defects and damage to the knife in accordance with our Care/Use Guidelines (see next section). We will repair or replace your qualified, and registered product for life. If you believe your LIQUIDIAMOND Knives are ever damaged or defective, please contact

Further, to ensure you remain completely satisfied with the performance of your LIQUIDIAMOND Knife, we offer complimentary professional sharpening of your qualified and registered product for life. You only need pay the nominal shipping & handling costs. Should you ever feel your LIQUIDIAMOND Knife has lost its edge, please contact


Care/Use Guidelines

The LIQUIDIAMOND Edge product is unique in its construction with a stainless steel body and and edge made from the LIQUIDIAMOND alloy. Like all quality knives we recommend that you wash them by hand and dry before storing in a safe place. It is always best when using the product to use it on a knife friendly cutting surface or cutting board to extend the life of the sharp edge. You should experience edge life several times better than you see with a steel knife. We do not recommend using a honing steel to "align" the LIQUIDIAMOND Edge. The LIQUIDIAMOND Edge is much harder than steel with different wear mechanisms and does not fold over like steel.



Return/RMA Procedure

Please contact us at for specific return instructions and Returned Material Authorization (RMA). Please make the subject line read: “RETURN REQUEST” and include all pertinent details in the email body, including your registered customer name.

We will contact you promptly to address your concerns.


Liquidiamond's Commitment To Privacy

Revised Jan 2020

VMatter Cutlery LLC operates the website, which provides the SERVICE.

Your privacy is important to us. To better protect your privacy, VMatter Cutlery LLC provides this notice explaining our online information practices and the choices you can make about the way your information is collected and used. To make this notice easy to find, VMatter Cutlery LLC makes a link to it available on our homepage and at every point where personally identifiable information may be requested.

The Information VMatter Cutlery LLC Collects

This notice applies to all information collected or submitted on the Liquidiamond web site. All information marked with an asterisk (*) is required for a particular service.

Your IP address may also be logged. IP addresses may be used in fraud prevention and/or to prosecute perpetrators of fraud or other abuses.

On some pages, you may order products, make requests, and register to receive materials. The information collected for these sections is strictly confidential and only shared with shippers, payment processors and/or selected partners as needed in order to fulfill the services you have selected to engage with us. The types of personal information collected at these pages are:

Your Name*

Billing and Shipping Address(es)*

Email address*

Phone number*

possibly Credit Card numbers or other payment information. If a credit card number is collected it is only securely transmitted to a 3rd-party payment gateway and your credit card number is never stored on our servers. All information is secured and is PCI compliant.

On some pages, you can submit information about other people. For example, if you order a gift online and want it sent directly to the recipient, you will need to submit the recipient’s address. The information collected for these sections is strictly confidential and only shared with shippers as needed. In this circumstance, the types of personal information collected are:

Recipient’s Name*

Recipient’s Address*

Phone Number*


You may optionally choose to sign up for a newsletter by entering your email address in the appropriate place on our support website. When you do so, that information is stored securely by a third-party service whom we use specifically for managing our newsletter sending and subscribership. You can always opt-out of the newsletter at any time. The only information stored about you is the information you provide, such as your email address.

How VMatter Cutlery LLC Uses Your Information

VMatter Cutlery LLC uses the information you provide about yourself when placing an order only to complete that order. We do not share this information with outside parties except to the extent necessary to complete that order.

VMatter Cutlery LLC uses the information you provide about someone else when placing an order only to ship the product and to confirm delivery. We do not share this information with outside parties except to the extent necessary to complete that order.

VMatter Cutlery LLC uses return email addresses to answer any email that is received. Such addresses are not used for any other purpose and are not shared with outside parties except to facilitate this exchange of email.

You can register with the Liquidiamond web site if you would like to receive our newsletters, list your site in the showcase, and/or other services. Information you submit on the Liquidiamond website may be shared with selected partners.

VMatter Cutlery LLC may use non-identifying and aggregate information to better design our web site and to share with advertisers. For example, VMatter Cutlery LLC may tell an advertiser that X number of individuals visited a certain area on our web site, or that Y number of men and Z number of women filled out our registration form, but VMatter Cutlery LLC would not disclose anything that could be used to identify those individuals.

Finally, VMatter Cutlery LLC never uses or shares the personally identifiable information provided to us online in ways unrelated to the ones described above without also providing you an opportunity to opt-out or otherwise prohibit such unrelated uses.


We use cookies on the Liquidiamond Knives site to track user activity and to provide certain functionality. These cookies are not used by Tru-Grit for any advertising purposes.

The above mentioned use of cookies are in place only to facilitate your login, your posting permissions, your “unread markers”, your account/viewing preferences, your content subscriptions, and other features enabled by the software on our site. There are some additional third-party services used for monitoring and improving services provided by VMatter Cutlery LLC, including but not limited to tools like Google Analytics (cookies prefixed by __utm) for statistical and performance monitoring and site tuning, Facebook (including xs, locale, s, lu, datr, c_user) for enabling display of Facebook content within our site, and YouTube (including use_hitbox, recently_watched_video_id_list, VISITOR_INFO1_LIVE, PREF, ACTIVITY) for enabling display of video content within our site. These third-party services are used only to enhance our site, and the cookies they use are controlled by them.

VMatter Cutlery LLC Commitment To Data Security:

To prevent unauthorized access, maintain data accuracy, and ensure the correct use of information, VMatter Cutlery LLC has put in place all the neccessary and appropriate physical, electronic, and managerial procedures to safeguard and secure the information Tru-Grit collects online.

VMatter Cutlery LLC Commitment To Children’s Privacy:

Protecting the privacy of the very young is especially important. For that reason, VMatter Cutlery LLC never collects or maintains information at our Liquidiamond Knives website from those we actually know are under 13, and no part of our Liquidiamond Knives website is structured to attract anyone under 13.

How To Contact Us:

Should you have other questions or concerns about these privacy policies, please contact us via  email: