can you use this to take scratches out of glass?

Yes, this diamond polishing paste can remove scratches from glass. I would use 14,000 grit or 40,000 grit with polishing wheel on a dremel tool. The process will not be quick especially if the scratch is deep.

Is this like with thermal paste we get a tiny bit of paste in a laege tube but with the plunger almost all the way in?

I would say no. Since i have ordered this product and used this product. The syringes you get are pulled almost to the very top and the paste is there. Push the plunger and you get a little bit out. You still have more to use. As far as i can tell from what i have used, plungers are full almost to the top. For me was good value for the money.

can this be used for final polish on a sapphire, ruby type gemstone?

For your project, I would recommend you to use some professional power tools like a faceting machine with a diamond polishing disc instead of using diamond polishing paste for a better result.

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Tryuunion Diamond Polishing Compound, 5 Piece Lapping Paste 1500 to 80000 Grit, Lapping Compound Kit for Jewelry, Metal, Ring, Gemstone, Glass, Coin, 0.25 to 14 Micron, 5 Gram

Tryuunion Diamond Polishing Compound, 5 Piece Lapping Paste 1500 to 80000 Grit, Lapping Compound Kit for Jewelry, Metal, Ring, Gemstone, Glass, Coin, 0.25 to 14 Micron, 5 Gram

Product ID: 684470673

Details

Brand
Tryuunion
Grit Material
Diamond
Grit Type
Fine
Item dimensions L x W x H
17.3 x 2.5 x
Material
Diamond

💎5 precision diamond grits (0.25-14 micron)

⚙️Oil-based formula for ultra-smooth polishing

🛠️Versatile on metal, glass, gems & more

Description

💎 Elevate Your Shine Game: From Rough to Radiant in 5 Steps!

COMPACT ORGANIZED - Neatly boxed for easy storage and portability—keep your shine game on point anywhere.
PRECISION GRIT RANGE - From 1500 to 80000 grit, achieve flawless finishes from stock removal to mirror shine.
MULTI SURFACE MASTERY - Perfect for jewelry, coins, gemstones, glass, knives, and metals—one kit, endless projects.
OIL BASED DIAMOND POWER - Smooth, streak-free polishing that’s easy to clean off—no residue, just brilliance.
READY TO USE CONVENIENCE - Pre-packed syringes with 5 grams each, so you can polish like a pro right out of the box.

Tryuunion’s 5-piece diamond polishing compound kit features oil-based diamond pastes ranging from 1500 to 80000 grit (0.25 to 14 micron) designed for professional-grade polishing on jewelry, metal, glass, and more. Each 5-gram syringe delivers smooth, streak-free finishes with versatile application and easy cleanup, making it the ultimate tool for flawless, mirror-like results.

Specifications

ASIN	B0926VFD1L
Brand Name	Tryuunion
Compatible Material	Aluminum,Paper,Glass,Metal,Leather
Country of Origin	USA
Customer Reviews	4.5 4.5 out of 5 stars (426)
Grit Material Type	Diamond
Grit Number	1500
Grit Type	Fine
Item Dimensions	17.3 x 2.5 x 1.5 Centimeters
Item Weight	18 Grams
Manufacturer	Tryuunion
Material Type	Diamond
Model Number	Tryudpc5801
Number of Items	5
Part Number	Tryudpc5801
Unit Count	5.0 Count

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