Foldable Ruby Filter Identification Tool for Emerald and Gemstones

so today I am going to tell something about gems equipments which I usually use while identification you can say a basic identification of gemstones what I am using right now here are some basic tools you can also use when you when you have bought any I am using this gauge you can buy from any lab equipment this I use for measurement of my stones in mm size for example this is garnet so how I measure it I will show you you can okay you will put it to table like this and this is 8 mm size like this you will know you're the size of a gemstone okay and 6.5 is its with a PO it's like eight by six point five okay that's how you can my ear the mm size of a gemstone next I am using this one eight caliber this also tells you you can for example Oh turn it as zero and then you can fix the gemstones in vernet caliber okay and there are there are different types of veneer caliber in digital and ma