TEMO 0.5 Micron 30,000 Grit 5 Gram Diamond Lapping Paste Polishing Compound Syringe Final Finish for Jewelry, Metal, Ring, Gemstone, Glass, Coin

This stuff works amazing. I had a Tungsten Carbide wedding ring for 15 years and it was looking black. Bought this and used it with my dremel and 20 mins later its a shiny mirror finish.

This does work great but I had some trouble at first. My final grit when sharpening is 10,000 and at first my strop loaded with this compound was leaving bigger scratches on the edge, which led my to think this compound is lower grit than it claims. However the problem was in how I was loading the strop, now it removes the 10k grit scratch pattern.I'll try to explain how to load the strop. First it needs several hours or better yet overnight to dry. When I first loaded the strop I used a few drops and a plastic spatula to cover the strop surface and then let it sit. This didn't work. Now I use a few drops and work this in with my finger tip, if it soaks in immediately I'll add a little more, until the surface feels saturated (this still isn't much, maybe 4-5 drops total) and then keep using my finger to work it in until a nice flat, even sheen appears. Then I leave it to dry overnight.This sounds way more complicated than it is, just make sure you work it in, with and against the strop grain and make sure the compound itself is thoroughly mixed up (no big shiney flakes in the mixture and no spots on the strop where it's thicker or thinner than any other spot).Now it's great and leaves an edge that has a scratch pattern very difficult to see even with a magnifying glass and feels like it's melting through phone book paper it cuts it so cleanly.

Wish this had more diamond content because I have to polish for a lot of extra time. I bought two different versions of these and they're both about the same in diamond content. There is no real regulation or metric of how much diamond content there is in these

So, like many others I set out looking for a solution for scratches on an Apple Watch. In my case it was the Apple Watch Sport (which uses the ionized hardened glass instead of sapphire crystal). This was cheap enough to try without taking a loss because of a lot of conflicting stories out there if this works or not. To cut to the chase, did it work? Sort of. The scratches after about 15 minutes of polishing last night are still there, pretty visible in the right light/angle. This morning though, it was barely noticeable (looking at it in natural light instead of a lamp overhead). The scratches look a lot more faint than they were. I plan on doing a bit more polishing with it and see how that works. I think if I got a slightly higher grit (maybe the 0.5-1um paste set) I would have had a faster results (going from 1 to 0.5). 5/5 stars as it does seem to work to buff out the scratches, but it does take some elbow grease from the user, and this isn’t just like a wipe on and off sort of solution; you really have to buff and polish it for some time.

This stuff is the real deal! I was a little skeptical because this isn't a traditional "name brand" of diamond paste, but it really works!I applied a very thin layer on a homemade leather strop using a credit card, then let it dry overnight. The next day I spent about 3-4 minutes stropping various knives that would not cut/slice paper. The knives will now push cut through a piece of paper with EASE!I had a knife that I gave a fat convex edge to that refused to cut paper. I had spent tons of time stropping with 3000 and 8000 grit paste, and even used a belt sander with a leather belt loaded up with 8000 git compound and couldn't get it done. Only took 5 minutes of stropping with this diamond paste and BAM! Slices right through a piece of paper with EASE!Seriously...this stuff really works for sharpening knives. Totally recommend this and will be buying more for friends and family.

I have a Tungsten Carbide ring that has blackened finish, after 3 years the finish was changing colors. Kinda looked oxidized, Jeweler told me it had to do with the way the black finish is applied. He thought it may had to do with UV rays? Hmm. But this one has sentimental value more than cash value. So thought what the heck I'll try this polish. Some reviews said it did nothing, others raved. Well I can't say enough good things about it. It polished the ring to a mirror finish and took out the tiny scratches I accumulated over 3 years. Only a tiny amount used on felt Dremel tool tip attatchment. Have plenty to use for quite some time on more items. Yes the original black outside is gone bit WOW what a mirror finish now, Inside of ring still beautiful as day it came. Only I see inside but when I take it off I love the difference in tone color. P.S. this is an un-compensated review. Hope you have as good results as I did.

In order to buff out scratches on sapphire crystal, you would need a rotary tool and the end piece to do this and you can't really buff out deep scratches. Otherwise this wouldn't really work on its own.

It is very beautiful, but the effect is slow and tiring. It is suitable for glasses. The camera lenses are very tired.The photo was taken before and after, within 4 hours of continuously moving the brush on the camera