Hi-Tech Diamond Diamond Compound Paste This Diamond Compound is a high quality paste that puts a beautiful polish on your gemstones. Use it to charge your lapidary tools, polishing pads and buffing pads. Diamond paste comes packaged in a convenient, disposable syringe. We offer a large variety of grits available in 2-gram, 5-gram and 10-gram syringes. The paste is made with a strong concentrate of high quality diamonds suspended in an oil-based carrier (except the 100,000, 50,000 and 14,000 grits. Those are made with a water-based carrier). Each grit is color-coded for easy identification and conveniently packaged in disposable syringes. Free Shipping if ordered with any Hi-Tech Diamond lap machine.