1.67ct Royal Blue Sapphire Round Shape No Heat
Certified Natural Royal Blue Sapphire - No Heat Treatment
An exquisite 1.67-carat natural royal blue sapphire from Sri Lanka (Ceylon), distinguished by its exceptional round brilliant cut and completely untreated status. This premium gemstone represents the pinnacle of natural sapphire beauty, with no heat enhancement—a rarity that significantly increases its value and desirability among collectors and connoisseurs.
Gemstone Specifications
- Carat Weight: 1.67ct
- Color: Royal Blue
- Cut: Round Brilliant
- Dimensions: 6.58mm × 6.55mm × 5.03mm
- Clarity: VS (Very Slightly Included)
- Origin: Sri Lanka (Ceylon)
- Treatment: None (No Heat)
Certification & Authenticity
Certificate: GRS (Gem Research Swisslab)
Certificate Number: GRS2019-052896
This sapphire comes with full GRS certification guaranteeing its natural Ceylon origin and untreated status, providing peace of mind.
Why No-Heat Ceylon Sapphires Matter
Beautiful unheated Royal Blue Ceylon sapphires are rare. Sri Lanka has been renowned for centuries as the source of the world's finest blue sapphires. The absence of heat treatment means this gemstone displays its natural color exactly as nature created it, making it significantly more valuable and sought-after by serious collectors. No-heat Ceylon sapphires are considered superior investments and heirloom pieces.
Ideal For
- Classic engagement rings and fine jewelry
- Premium gemstone collections
- Heirloom pieces to pass down generations
- Collectors seeking certified natural Ceylon gemstones
Durability & Care
Sapphires rank 9 on the Mohs hardness scale, making them one of the most durable gemstones—ideal for everyday wear in rings, pendants, and earrings. Clean with warm soapy water and a soft brush. Avoid harsh chemicals and ultrasonic cleaners.
View in Person
Experience the brilliance of this exceptional Ceylon sapphire at our Singapore showroom. Schedule a private viewing to see the gemstone under professional lighting and discuss custom setting options with our gemstone specialists.