Yellow Sapphires 16 pieces raw-crystals How do I ensure I'm

How do I ensure I'm buying authentic Burma (Myanmar) amber and not a copal or imitation

sometimes with black hornblende

Q: What size crystals can I expect in this 1 KG bulk lot

Collecting

Grab the one killo gram parcel of rare Rhodonite crystals

Yellow Sapphires 16 pieces raw-crystals How do I ensure I'mNatural Yellow sapphires 11 carats per piece weight 0. 50ct to 0. 90 ct Stone: Yellow Sapphire Stones Weight: 11 carats Sapphire Size: 0. 50 carat to 0. 90 carat per piece Simple Heat These are very very nice yellow Sapphires. Clarity and brilliance are excellent. Cutting is also great. Origin Mixed countries Srilanka, African and Thailand Type Corundum Dimension: 7 mm to 5x4 mm Shape: Oval Color: Yellow Clarity: VS to vvs Treatment: Simple heat