Gemstone and Metals,Mantra for Gemstone

Listed below are the Gemstones and the metal that it should be set in, along with the Mantra for each of the Gemstones.
Ruby Gemstone:
Carats:3 to 5
Metal :Gold
Finger to be worn: Ring
Day: Sunday
Mantra : Om Suryaya Namah

Pearl Gemstone: For Moon
Carats:2 to 11
Metal:Silver
Finger to be worn: Right hand little finger
Day: Monday
Mantra : Om Som Somaya Namah

Emrald Gemstone: For Planet Mercury
Carats:=>3
Metal:Silver or Brass
Finger to be worn: Right hand first finger
Day: Wednesday or Friday
Mantra : Om Bum Budhaaya Namah

Diamond Gemstone: For Planet Venus
Carats:=>1.5
Metal:Silver or Platinum
Finger to be worn: Right hand first finger
Day:Friday
Mantra : Om Shum Shukraya Namah

Red Coral Gemstone: For Planet Mars
Carats:=>6
Metal:Gold or copper
Finger to be worn: Right hand first finger
Day:Monday, Tuesday
Mantra : Om Ang Angaarkaya Namah

Yellow Sapphire Gemstone: For Planet Jupiter
Carats:=>6
Metal:Gold
Finger to be worn: Right hand first finger
Day:Thursday
Mantra : Om Graam Greem Grom Sah Guruve Namah

Blue Sapphire Gemstone: For Planet Saturn
Carats:=>5
Metal:Mixture of Eight Metals or Iron
Finger to be worn: Right hand second finger
Day:Saturday
Mantra : Om Praam Preem Prom Sah Shaniyee Namah

Hessonite Gemstone (Gomedh): For Planet Rahu
Carats:=>6
Metal:Mixture of Eight Metals
Finger to be worn: Right hand middle finger
Day:Wednesday
Mantra : Om bhraam bhreem bhrom Sah Rahavee Namah

Cats’ Eye Gemstone (Lehsunia): For Planet Ketu
Carats:=>3
Metal:Silver
Finger to be worn: Little finger
Day:Thursday
Mantra : Om sraam sreem srom Sah Ketave Namah