Fuzzy Analytical Hierarchy Process Method to Determine the Quality of Gemstones

Table 1

Data of gemstones containing specific gravity, color, hardness, cutting, and clarity as the main criteria. The data can be seen from the gemstone certificate.

	Specific gravity	Color	Hardness	Cutting	Clarity
Rubi 1	4.50 ct	AAA	9 mohs	Excellent	I2
Rubi 2	1.60 ct	AA	9 mohs	Excellent	SI2
Rubi 3	0.65 ct	A	9 mohs	Average	I1
Rubi 4	2.25 ct	A	9 mohs	Average	SI1
Rubi 5	1.05 ct	B	9 mohs	Poor	VS