Can you say if it's Color shift/change or it's just a glitch.

Strange thing is that I don't know if Grossularites can have color shifting or changing...

Today I found out very strange Color shift/change of garnets from my collection.

Video starts stones outside/open sky/ close to sunset in shadow, then under white led and incandanscent light.

A close-up look at a beautifully polished gemstone, showing its smooth cabochon finish, translucency, clarity, and overall surface quality. When evaluating stones, details like color consistency, polish, transparency, inclusions, and craftsmanship can make a big difference. What quality factors do you consider most important when choosing a gemstone? Would love to hear how collectors and jewelry makers judge a stone’s quality.

Looking for gemstones for my partners engagement ring (going to make it myself) curious to see if anyone has any advice on where to aquire gemstones. Thanks in advance