Bulk CBD Distributors has 11 third-party Certificates of Analysis on file for THCA Diamonds, dated August 2023 to April 2026. Across these tests, THCA potency ranged from 94.71% to 99.7%, with an average of 98.7%. Testing was performed by 5 independent ISO 17025 accredited labs: KCA Laboratories, FESA Labs, SC Labs, PSI Labs, Encore Labs.
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Latest THCA Diamonds COA (04-29-2026)
Open full THCA Diamonds COA 04-29-2026 (PDF)
Batch-to-batch THCA potency
All THCA Diamonds COAs
| Test date | Testing lab | THCA potency | COA |
|---|---|---|---|
| 04-29-2026 | KCA Laboratories | 99.2% | THCA Diamonds COA 04-29-2026 (PDF) |
| 03-21-2025 | KCA Laboratories | 99.3% | THCA Diamonds COA 03-21-2025 (PDF) |
| 02-03-2025 | FESA Labs | 99.66% | THCA Diamonds COA 02-03-2025 (PDF) |
| 09-12-2024 | FESA Labs | 99.41% | THCA Diamonds COA 09-12-2024 (PDF) |
| 04-16-2024 | FESA Labs | 99.7% | THCA Diamonds COA 04-16-2024 (PDF) |
| 01-08-2024 | KCA Laboratories | 99.2% | THCA Diamonds COA 01-08-2024 (PDF) |
| 12-28-2023 | SC Labs | 99.2% | THCA Diamonds COA 12-28-2023 (PDF) |
| 10-30-2023 | PSI Labs | 94.71% | THCA Diamonds COA 10-30-2023 (PDF) |
| 08-15-2023 | KCA Laboratories | 99.2% | THCA Diamonds COA 08-15-2023 (PDF) |
| 08-10-2023 | PSI Labs | 97.09% | THCA Diamonds COA 08-10-2023 (PDF) |
| 08-09-2023 | Encore Labs | 99.02% | THCA Diamonds COA 08-09-2023 (PDF) |
These are representative COAs. We source from vetted suppliers, so results vary slightly from lot to lot. The batch COA for your lot ships with every order.
THCA Diamonds COA FAQs
What is a THCA Diamonds COA?
A Certificate of Analysis (COA) is a report from an independent, third-party lab that measures the cannabinoid content of a sample. Each THCA Diamonds COA on this page was issued by an ISO 17025 accredited lab and shows the THCA potency for that sample.
Why do results vary slightly between COAs?
Small differences come from normal variation between production runs, suppliers and lab methods. That is why we publish every COA we have on file, so you can see the full range instead of a single best result.
Do I get a COA with my order?
Yes. The batch COA for your lot ships with every order, and you can request a current batch COA before you buy.
How do I read a COA?
Start with the cannabinoid profile, then check the lab name, test date and accreditation. Our step-by-step guide explains each section of a hemp COA for B2B buyers. How to read a hemp COA