Lineage: Zkittlez x Gelato 33 Tasting Notes: Fruit, Tropical, Cream What makes Proper Cannabis' Liquid Diamond Cartridges unique is that they are another form factor of Proper’s Diamonds & Sauce. Proper takes their diamonds and sauce, separates them, then melts the diamonds. The sauce is reintroduced to melted diamonds, creating the most flavorful, potent pen possible.