TechDiamondTools Diamond Polishing Compound Polishing Paste USA Made 100,000 Grit 0-0.25 Micron for Marble Glass Metal Rock Jewelry Resin Silver Chrome Gemstone with High Concentration Diamond Powder

This 3,000 grit diamond polishing compound completely exceeded my expectations. I’ve been using it on a variety of surfaces—marble, metal, and even a couple of resin pendants I cast recently—and the results are consistently excellent. The paste has a nice consistency that's easy to spread evenly, and it doesn’t dry out or gum up like some cheaper compounds I’ve tried before.What really impressed me is how high the concentration of diamond powder feels. It’s aggressive enough to make a noticeable difference quickly but still refined enough to give a smooth, glassy finish. I used just a dab on a felt wheel and brought a dull piece of silver back to a mirror shine. Same with a glass cabochon—it went from cloudy to crystal-clear in minutes.It’s also nice knowing it’s made in the USA. There’s a sense of quality control here that shows up in how reliable and consistent it is across different jobs. Whether I’m polishing jewelry or sharpening chisels, this compound gets the job done cleanly and quickly. A little goes a long way, so it's also a good value. I'll definitely be keeping a jar of this on hand in my shop.

After months of trying to find a true working diamond paste, I finally decided to try TechDiamondTools. The pricing was great and quite frankly the cheap diamond paste was just not working for me (yeah...i tried to go cheap). I've been trying to find a reliable way to get scratches out of mineral glass and most internet searches claimed it was very difficult. Not only could I not find a guide to do this, but couldn't find a grit guide to use for mineral glass. The first thing I did was message the TechDiamondTools and asked for guidance. They replied to me several times and have been very courteous and helpful. They recommended several grits to try, so I went ahead and ordered.Here is what I used, and it works GREAT! Just be patient (this is the key to perfection).Rotary Tool (Cheap) I also used an adjustable speed control rotary tool with 3/32 pro bits compatible that is used for nail manicures. It's electric. I did a search on Amazon and the no longer sell it, but Pinkiou looks similar and it's cheap. I don't recommend using a high speed Dremel. I have one and it goes way to fast.I started with 600, then 1,500, 3,000, and finally 5,000 grit. The results were amazing!Now to keep things in perspective, I did mess up and used sandpaper on one of my other watches. Used 100 grit and that was a mistake. The pictures I posted, I didn't use sandpaper. On the other watch, it did get all the scratches the sandpaper made, however it took a bit more of time. Next time I'm using 2,000/1,500 grit sandpaper. I've read that's what should be used before using diamond paste. I currently have a 14,000 grit that I can't decide whether to use for polishing since the 5,000 did a superb job. I may just return that 14,000 and use the 8,000 for final polishing.Okay, back to the watch. the pictures are the result so the diamond paste. I "wish" that I had a picture of the watch before I even started, but I totally forgot to take some. The pictures are after I had already gone through using the 600 grit and the 1500 grit. As you can see the scratches I circled. Trust me before I started, these scratches were pretty bad. You could actually catch you fingernail on it. Not just a hairline scratch either. The final picture is the finished product, although it looks superb and flawless, I wonder what a final polish with 8,000 or 14,000 would do. I haven't tried that yet. Anyway, I am very pleased with DiamondTechTools, they actually worked with me to replace the 400 grit because it seemed watered down, but they made it right. As a hobby I work on Casio's digital watches and refurbish them, and the biggest problem with refurbishing is the scratches on the glass.Well to end this, I'd like to say I did order the 400 grit paste and will start with that to see if it cuts back on my time. The pictures of the watch I posted took me about 3 hours to get the scratches out, I'm hoping with 400 grit, I'm able to cut that time in half. I don't like to used sand paper, but I will if there are a lot of bad scratches, then I will. Just don't use 100 grit like I did. Use 2,000 or 1,500. I'd also like to say, if you use this process, your result may vary. I want to say that because I'm a very meticulous person and I take my time. I'm only putting this out because this actually worked for me after all failed attempts with other diamond paste, and no I didn't get any free products from TechDiamondTools. If Amazon lets me, since I ordered like 6 syringes of different grits, I want to post more pictures of scratched up watches and the results. Hope this helps folks out there that have not found any documents on getting scratches out of mineral glass, because there really isn't any clear document that outline this.Hope this help those watch enthusiast out there!! And thank you DiamondTechTools, ya'll are awesome and keep making those American Products GREAT!!!

I had a small area of my windshield that got light scratches from foolish use of a super fine grade sandpaper on a nicked area. I tried a few different ways to fix the scratched area but nothing worked. I was beginning to think I would permanently have a small, unsightly area where the glass was dulled; this was especially visible when the light hit at certain angles. But I came across TechDiamond polishing compounds while searching for glass polish. I took a best guess and ordered the 4000 grit/2-4 micron product. I heated the tube for 10 seconds in microwave, put a small amount on a microfiber cloth, and polished rapidly in circles over the affected area. 5 minutes later, the glass was shiny and smooth again. I could not believe how rapidly and effectively this solved the problem. While driving, I could barely see where the scratches were. I would say it was a 95% fix. I could probably do a little more on it but I don't want to risk going too far, since it's really unnoticeable now. (Note that the scratches I'm referring to were very light and shallow - they were not so deep that you could get your nail into them). Very pleased with this product. I think I could make use of it to polish other things like lightly scratched watch crystal.

The diamond paste is as described. It's thicker than I anticipated and somewhat difficult to spread out thin enough on my leather strop to perform well. Once applied. It does a nice honing job on my knives, chisels, and plane blades.

Wonderful product. It works way better than I thought. Thank you. I little rubbing and voila.

Works great and easy to use!

I gave this three stars simply because it is made in America. But it just didn't work on my scratch up phone screen. My friend had this and shared some with me. I tried it to no luck. I thought maybe if I bought some and used more then it may work. It didn't.

Did well with a little elbow grease and time. I probably should have gotten a different grit but I was unsure and didn’t want to damage my Apple Watch more than there already was. Applied a screen protector after for added security.