Natural Big Blue Topaz 12.09ct 13.5mm VVS Round Cut

This substantial blue topaz rounds out as a truly impressive single stone: 12.09ct in a round brilliant cut measuring 13.5mm in diameter, with a vivid, well-saturated sky blue colour and outstanding VVS clarity. The large round face captures and reflects light across every facet with exceptional brilliance, producing a bright and lively display that commands attention. The colour is a clean, vibrant medium sky blue with excellent transparency and no distracting inclusions visible to the eye.

Blue topaz from Brazil is produced through irradiation and heat treatment of natural colourless topaz, a permanent and industry-standard process that develops the prized bright blue colour. At over 12 carats and 13.5mm, this stone is a bold centrepiece choice for bespoke cocktail rings, large statement pendants, and custom showcase designs where size and brilliance are paramount. Blue topaz is the traditional birthstone for November and a lasting favourite in fine jewellery.

• Stone type: Blue topaz
• Treatment: Irradiated
• Cut: Round brilliant
• Size: 13.5mm
• Weight: 12.09ct
• Clarity: VVS
• Origin: Brazil

Natural blue topaz, November birthstone - sold loose.