1 pcs Red Spinel - 3.75 ct - Lotus Gemology - "No Heat Origin Vietnam"

Spinel is a striking gemstone known for its rich hues and historical significance, often mistaken for ruby due to its deep red coloration. The crystal structure of spinel is cubic, and it ranks around 8 on the Mohs hardness scale, making it suitably durable for fine jewelry. The specimen referenced here is a red spinel weighing 3.75 carats, sourced from Vietnam, a known classic locality recognized for producing high-quality spinels with vivid colors. The mention of "no heat" treatment is significant—many gemstones undergo heat treatments to enhance color or clarity, so an untreated stone typically commands higher interest and value among collectors. Lotus Gemology’s involvement suggests expert appraisal and detailed origin verification, adding to the stone’s desirability. Spinels occur in a range of colors but the red variant is especially prized for its striking beauty and relatively rare occurrence in untreated form. This gem appeals both to enthusiasts who value natural, untreated colored stones and to those drawn to historically esteemed gems that retain their natural charm without alteration.