what is the quantity of this lot?

The quantity is 10grams total weight of stones. This includes about 20-25 pieces. Please let us know if you have any more questions.Thanks, Jim

Are there at least a few that would be considered jewelry quality? Basically would a professional jeweler buy these to use at least some of the gems?

My apology for the incomplete first answer. Something went wrong with my system. Anyway, to continue, start with a small amount and have it appraised. For the price and the quality, it can't be beat. As I stated, my purpose is not for sale, it's a personal collection. I find them of excellent quality and beautiful. They are worthy of setting into jewelry pieces.

ASIN	B00A0K8C4G
ASIN	B0FSDVCQ15
Best Sellers Rank	#218,937 in Clothing, Shoes & Jewelry ( See Top 100 in Clothing, Shoes & Jewelry ) #10 in Loose Gemstones #3,128 in Men's Jewelry
Brand Name	GM GEMMART USA
Certificate Type	GemMartUSA
Clasp Type	Fancy
Customer Reviews	4.3 4.3 out of 5 stars (1,810)
Date First Available	September 24, 2025
Department	unisex-adult
Gem Type	mixed
Grade Rating	A+
Item Weight	0.71 Ounces
Manufacturer	GemMartUSA
Manufacturer	GemMartUSA
Primary Stone Gem Type	Topaz
Stone Clarity	VS or better
Stone Color	Blue, Green, White
Stone Cut	Faceted
Stone Treatment Method	Natural
Stone Weight	50 Carats
Total Gem Weight	50 carats
UPC	727908047196 781524206801

Select Your Stone 50 Carat Mix Gemstone Lot Exclusively by GemMartUSA (MIX GEMSTONE) MX-60001

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