I bought some colored stone melee from a Thai vendor on Etsy and could use some help evaluating its quality. I have 5 days to return it. I really do not know what to expect for melee. All stones said untreated, unheated and loupe clean.
First I have 3.2mm Spinel.
Then I have 3.2 mm Tsavorite
Is Tsavorite heavier than Spinel? Each has 6 pieces but the Spinel is .87 ct and the Tsavorite is 1 ct. Or does this just mean noncalibration?
Finally, I have 2 packs of 12 Sapphires, 2.7 mm. I could not get these to all face up!


These are 1.14 cts and 1.23 cts. Is this just within the realm of acceptable variance in weight?
Thanks for the help!
First I have 3.2mm Spinel.

Then I have 3.2 mm Tsavorite

Is Tsavorite heavier than Spinel? Each has 6 pieces but the Spinel is .87 ct and the Tsavorite is 1 ct. Or does this just mean noncalibration?
Finally, I have 2 packs of 12 Sapphires, 2.7 mm. I could not get these to all face up!


These are 1.14 cts and 1.23 cts. Is this just within the realm of acceptable variance in weight?
Thanks for the help!