About C.
C. is a minimalist house label sold through the Ontario Cannabis Store (OCS) and processed by CannaPiece Corp., a Health Canada–licensed cannabis processor based in Pickering, Ontario. The brand leans on a value-forward extract angle, built around high-potency Liquid Diamonds 510–thread vape cartridges and Diamond Coated infused pre-rolls. With a single-letter name and a stripped-back presentation, C. is positioned as an approachable, no-frills way to reach concentrate-grade THC at an accessible price point.
Quick Snapshot
- Producer: CannaPiece Corp. (Pickering, Ontario — Health Canada–licensed processor; sibling LP to the Boutiq brand)
- Category focus: Vapes — Liquid Diamonds 510–thread cartridges, plus Diamond Coated infused pre-rolls
- Signature: High-potency liquid diamond extract (roughly 95–98% THC in carts) at a value price
- Best for: Experienced shoppers chasing strong, affordable THC in a familiar 510 format
- Availability: Ontario (OCS); no standalone brand website
What Shoppers Like
- High potency for the price. The Liquid Diamonds carts list THC in the 95–98% range, which is at the strong end of the 510 category.
- Familiar 510 hardware. Cartridges use the standard 510–thread fitting, so they pair with most common refillable batteries.
- Two ways to use diamonds. The same diamond-extract concept shows up in both vapes and the Diamond Coated infused pre-rolls, giving a smoke-or-vape choice.
- Simple, low-frills branding. The minimalist C. label keeps the focus on potency and price rather than premium packaging.
Format & Use-Case Chart
| Need | Format | Why C. |
|---|---|---|
| Strong, discreet, on-the-go | Liquid Diamonds 510 cartridge | Roughly 95–98% THC in a standard 510 fitting |
| A boosted smoke session | Diamond Coated infused pre-roll | Flower coated with diamond extract, listed around 50–55% THC |
| Value over premium polish | Either format | House-label pricing on concentrate-grade THC |
Tips for First-Timers
- Start small. At 95–98% THC, a single short pull from a Liquid Diamonds cart goes a long way — wait before going again.
- Mind the infused pre-rolls too. Diamond Coated pre-rolls list around 50–55% THC, far above standard flower, so pace yourself.
- Check your battery. Use a quality 510 battery at a low voltage setting to avoid burning the extract.
C. FAQs
What is C.?
C. is a minimalist cannabis house label sold through the Ontario Cannabis Store. Its lineup centres on high-potency Liquid Diamonds 510–thread vape cartridges and Diamond Coated infused pre-rolls.
Who makes C.?
C. is processed by CannaPiece Corp., a Health Canada–licensed cannabis processor based in Pickering, Ontario. CannaPiece operates a roughly 50,000 square foot facility and is the same licensed producer behind the Boutiq brand.
What products does C. sell?
The OCS lineup includes Liquid Diamonds 510 cartridges in strains such as Hawaiian Rain, Triple and Blackberry Caviar, plus Diamond Coated infused pre-rolls including Hawaiian Rain and Triple Diamond Coated.
How potent are C. vapes?
The Liquid Diamonds 510 cartridges list THC in the 95 to 98 percent range, placing them at the high end of the vape category. The Diamond Coated infused pre-rolls list THC around 50 to 55 percent.
Is C. good value?
C. is positioned as a value-forward house label, pairing concentrate-grade THC with no-frills branding. Exact pricing varies on OCS, so check the current listing for the latest figure.
Are C. cartridges 510 compatible?
Yes. The Liquid Diamonds cartridges use the standard 510–thread fitting, so they work with most common refillable 510 batteries.
What are Liquid Diamonds?
Liquid Diamonds is a cannabis extract that combines a liquid terpene-rich fraction with crystalline THCA diamonds, producing a very high-potency oil. In C. carts the listed extraction process is butane-based.
Are C. products lab-tested?
As a federally licensed processor, CannaPiece Corp. must meet Health Canada testing and compliance requirements, and OCS listings publish potency ranges for each product. Refer to the package and OCS listing for batch-specific results.
Where can I buy C.?
C. is sold through the Ontario Cannabis Store. Availability of individual products can change, and several listings have shown as out of stock, so check OCS for current inventory.
How should I store C. vapes and pre-rolls?
Keep cartridges and pre-rolls upright in a cool, dark place away from heat and direct sunlight to protect potency and flavour, and store them out of reach of children and pets.
Is C. a CBD brand?
No. C. is a high-THC brand. Its products list CBD at 0 to 2 percent, with THC as the dominant cannabinoid.
Does C. have its own website?
Not at the time of writing. C. is a house label without a standalone brand site; the most reliable sources are its OCS brand page and the CannaPiece Corp. website.