Choosing the right Diamondium insert can dramatically affect vapor production, heat behavior, and overall dabbing experience. This guide compares the JCVAP Diamondium XXL Grade D Insert with the Normal Size Diamondium Insert, explaining the material, grade system, size differences, and how to choose the right option for your setup and dabbing style.

Quick Comparison: XXL Grade D vs Normal Size Diamondium Insert

Feature	Diamondium XXL Grade D Insert	Normal Size Diamondium Insert
Material	Diamondium (Moissanite / SiC)	Diamondium (Moissanite / SiC)
Grade	Grade D	Grade D
Inner Diameter	Same	Same
Wall Thickness	Same	Same
Cup Height	Taller (XXL)	Standard
Capacity	Larger load capacity	Smaller / moderate loads
Vapor Output	Much larger, denser clouds	Smoother, controlled vapor
High-Temp Performance	Excellent (especially >545°F)	Good
Spill Resistance	Better overflow prevention	Standard
Heat Retention	Longer heat holding	Faster heat-up, shorter hold
Heat Requirement	Higher	Lower
Price	Higher	More affordable
Best For	Advanced users, high-temp, big clouds	Beginners, low-temp, flavor-focused

What Is Diamondium?

Diamondium is JCVAP’s proprietary high-performance material made from moissanite (silicon carbide crystal), engineered specifically for dabbing applications. It is designed to withstand extreme temperatures while delivering efficient and even heat transfer.

Compared with standard quartz or ceramic inserts, Diamondium offers:

Superior thermal conductivity
Excellent heat stability at high temperatures
Resistance to thermal shock
Clean, consistent flavor delivery

For a detailed explanation of Diamondium’s material science and properties, you can refer to JCVAP’s full guide here:
👉 https://jcvap.com/what-is-diamondium/

What’s the Difference Between Grades of Diamondium?

Diamondium grades (A, B, C, and D) are determined by material quality, not by size or shape. The grading system is based on:

Crystal purity and uniformity
Internal defects and inclusions
Structural density
Thermal conductivity and heat stability

While higher grades feature fewer internal defects and more efficient heat transfer, Grade D Diamondium still performs significantly better than ordinary quartz or ceramic, especially under high-temperature conditions.

To learn more about how Diamondium grades are defined, see:
👉 https://jcvap.com/whats-the-difference-between-grades-of-diamondium/

Why Is It Called XXL Instead of XL?

Many users ask why JCVAP uses the term XXL rather than XL.

In the industry, insert capacity is often referenced against the Puffco Peak Pro 3D XL chamber. However, the JCVAP Diamondium XXL Insert is actually larger than the Puffco 3D XL insert in terms of usable cup height and overall capacity.

Because it exceeds the standard “XL” size benchmark, JCVAP refers to it as XXL, not XL.

In short:

XL → Matches the Puffco 3D XL size reference
XXL (JCVAP) → Larger than Puffco 3D XL, offering more capacity and mass

The name reflects a real functional difference, not a marketing label.

Structural Differences Between XXL and Normal Size Inserts

Both inserts share the same:

Inner diameter
Wall thickness
Diamondium Grade D material

The only physical difference is the cup height.

The XXL insert has a taller cup, which results in:

Greater concentrate capacity
Increased overall mass
Improved stability during high-temperature sessions

Vapor Production and High-Temperature Performance

Because of its larger capacity, the XXL Grade D Insert allows users to load more material, producing bigger and denser vapor clouds.

At temperatures above 545°F, the taller walls of the XXL insert help:

Prevent wax overflow
Reduce splashing during aggressive draws

This makes it particularly well-suited for high-temperature dabbing and heavy usage.

The normal size Diamondium insert delivers a smoother and more controlled vapor experience, ideal for lighter loads and flavor-focused sessions.

Heat Retention, Heat Demand, and Price Differences

Due to its larger mass, the XXL insert:

Retains heat for a longer period
Provides a wider usable heat window

However, this also means:

It requires more heat energy to reach optimal temperature
It consumes more power during use
It is priced higher due to increased material usage

The normal size insert heats up faster, uses less energy, and is more cost-efficient for everyday use.

How to Choose the Right Diamondium Insert

Choose the Diamondium XXL Grade D Insert if you:

Prefer big clouds and high-temperature dabs
Regularly dab above 545°F
Load larger amounts of concentrate
Are an experienced user seeking maximum vapor output

Choose the Normal Size Diamondium Insert if you:

Are new to Diamondium or dabbing
Prefer smoother, more controlled vapor
Dab at lower temperatures
Use terpene-rich or softer waxes that benefit from gentle heating

Final Thoughts

Both inserts deliver the core advantages of Diamondium: durability, clean flavor, and reliable thermal performance. The real difference lies in capacity, heat behavior, and user preference.

If your goal is maximum vapor production and high-temperature stability, the XXL Grade D Insert is the superior choice. If efficiency, affordability, and smooth low-temperature sessions matter more, the Normal Size Diamondium Insert remains an excellent option.

Choosing the right insert ensures you get the most out of every dab — and the most out of your setup.