Gemstone Collection

Precious Stones - Frequently Asked Questions

Q: What is an "unheated sapphire"?
A: It’s a natural sapphire that has not been treated with high heat to enhance its color. It’s rarer and often more valuable.

Q: What is a spinel?
A: Spinel is a natural gemstone often mistaken for ruby. It comes in various colors and is known for brilliance and affordability.

Q: Are Thai gemstones real?
A: Yes! Thailand is a global hub for genuine gemstones like sapphires, rubies, spinels, and zircon. Shiraz Jewelry only offers natural, tested stones.

Q: How do I know if a gemstone is real?
A: Look for certificates from reliable gem labs (like GIA, AIGS, GIT). At Shiraz, we provide trusted certification with every stone.

Q: What gemstone is best for investment?
A: Unheated sapphires, rubies, and certain spinels tend to hold long-term value—especially with proper certification and origin.