what are Alpa Nut earring backs (for stud earrings)?

what are screw backs for studs and what's the difference between those and safety backs?

what is the price of koh-i-noor

who can estimate my earrings with diamonds? quantity/ctw 2/0.75ctw shape princess color J - K clarity I1 - I2

My ring is too loose on the base of my finger but resizing it won't help since it won't go over my knuckle. What can I do?

What is the value of my ring.

Do you think a jewelry set made out of all diamonds is too much?

I really want a diamond ring, but I don't think my boyfriend can afford one.

Should I buy a rough diamond necklace or bracelet for my daughter?

Is it okay to get diamond studs as my first pair of earrings??