No reserve price Blue Topaz - 21.70 ct - International Colored Gemstone Association (ICA GemLab) - Top Swiss Topaz

Blue Topaz is one of the most popular and widely recognized gemstones, celebrated for its brilliant clarity and captivating sky to deep blue colors. Belonging to the topaz mineral family, blue topaz occurs naturally but is also commonly produced by treated color enhancement techniques to intensify its hue, though untreated natural stones command premium value. The specimen described has been assessed by the International Colored Gemstone Association (ICA GemLab), ensuring its quality and authenticity.

Topaz crystals form in igneous rocks and hydrothermal veins and are valued today both as a collector's gemstone and a fashionable choice for jewelry. The gem's excellent hardness and durability (8 on the Mohs scale) make it suitable for everyday wear, including rings and pendants. The vibrant blue color symbolizes tranquility and calm, contributing to its widespread appeal.

At 21.70 carats, this blue topaz is notably large, offering a substantial presence in a jewelry piece. Its origin related to the 'Top Swiss Topaz' classification may hint at a certain quality or source that is of interest to collectors.

Because of its enduring beauty, relative affordability compared to other blue gemstones like sapphire, and robust physical properties, blue topaz remains a favored gem in the global market, both for casual wear and special occasions.