✨ RARE & ETHICAL: 0.75 CT UNTREATED Montana Sapphire - Eye-Clean Clarity! ✨ This is an extraordinary, investment-grade loose gemstone! This 0.75 ct Natural Montana Sapphire features a stunning bi-color blend, shifting from a bright yellow-green to a deep teal green. Ethical Rarity: This stone is mined in the USA (Montana), offering a clean, fully traceable, and ethical origin—a major selling point. Untreated Value: The vibrant, unique color is 100% natural with NO TREATMENT. This status exponentially increases its value and collector appeal. Bi-Color Magic: The visible color zoning (yellow-green to teal) is known as Parti-Color and is a prized, rare phenomenon in Montana Sapphires. Premium Specs: The Pear Faceted Cut (6.2 x 4.7 x 3.6 mm) maximizes the brilliance. Clarity is Eye-Clean. 👑 Significance, Value, and Investment Potential Symbol of Trust: Sapphires symbolize loyalty, truth, and commitment. The ethical US sourcing adds an extra layer of trust and value. Rarity Asset: Untreated, bi-color sapphires are extremely scarce. The price appreciation for fine, naturally colored Montana Sapphires is very strong, ensuring the value of this gem will go up over time. Durable Investment: Sapphire ranks 9 on the Mohs scale, making it supremely durable for daily wear. Birthstone: Sapphire is the official September Birthstone.