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Lab Gemstone - Ruby - Square
Lab Gemstone - Ruby - Square


Our lab created gemstones are as beautiful as natural stones. These high quality stones are precision cut and perfect for any setting, or to embed directly into metal clay.

Available in a variety of shapes, sizes and colors, get the sparkle and shine of natural stones with these beautiful, affordable gemstones.

Click here to download a PDF version of our firing guide.
Click photo to choose size.

Item# Item Name Price Qty Add
LAB-355 Lab Gemstone - Ruby - Square 4mm - Pkg - 4
LAB-356 Lab Gemstone - Ruby - Square 6mm - Pkg - 2
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Features & Videos:

Lab Gemstone - Ruby

Stable at all metal clay temperatures. Hardness: Lab Ruby has a rating of approximately 9 on Mohs hardness scale vs. a rating of 10 for diamond.