- Stone13
- Reports3













1.33 Ct. Violet Tanzanite from Tanzania
This loose stone ships by Aug 8
Item ID: | K15379 |
|---|---|
Dimensions (MM): help | Length: 6.21 Width: 6.83 Height: 4.55 |
Weight: | 1.33 Ct. |
Color: help | Violet |
Color intensity: help | Intense |
Clarity: help | Very Slightly Included |
Shape: help | Heart |
Cut: | Mixed Brilliant Cut |
Cutting style: | Faceted |
Enhancements: help | Heat Treated |
Origin: help | Tanzania |
Per carat price: help | $1,353 |
This violet tanzanite from The Natural Gemstone Company is a beautifully faceted heart shaped gemstone, weighing 1.33 carats, with dimensions of 6.21 by 6.83 by 4.55 millimeters. The stone displays a mixed brilliant cut, designed to balance sparkle and face up size, and it has been evaluated as very slightly included at eye level. Its color intensity is described as intense, presenting a lively violet hue that commands attention, and the polish is excellent, which enhances light return and overall brilliance. This tanzanite has been heat treated, a widely accepted and stable enhancement used to refine and stabilize the violet blue tones, and its origin is Tanzania, a location that is synonymous with the gem species and contributes to its desirability and provenance.
For educated buyers, the clarity grade and cut style are important components of value, and this stone performs well on both counts. Very slightly included at eye level indicates that the inclusions are minor, typically internal crystal or feather features that do not detract from the gem when viewed without magnification, and this level of clarity allows the tanzanite to maintain strong transparency and lively light performance. The mixed brilliant cut combines a brilliant facet arrangement on the pavilion with a modified crown, which preserves weight without sacrificing scintillation. The excellent polish ensures that facets are crisp and smooth, maximizing reflective contrast and making the intense violet color appear more saturated and lively. Heat treatment is common in tanzanite, and when disclosed honestly, it allows collectors to assess color stability and market standards, which increases trust and predictability in long term value.
The Tanzanian origin is central to the gem story and to an informed assessment of rarity and provenance. Tanzanite is found in a comparatively small geographic area near Merelani, and this concentrated source contributes to its modern rarity and collectible appeal. Geologically, the material forms under specific conditions that create its characteristic pleochroism, meaning the stone can display different colors when viewed from different angles, most commonly violet and blue with sometimes subtle purple undertones. This optical property makes the heart shape particularly evocative, as different orientations reveal shifting hues that catch the eye. With a carat weight of 1.33 carats, the gem is substantial enough to make a strong visual statement, while the heart form conveys romantic and elegant symbolism that works for both daily wear and special occasions. The approximate hardness of tanzanite falls below that of traditional engagement stones, so a secure mounting is advisable, but the gem remains suitable for rings, pendants, and earrings when set with appropriate protection.
Practical advice for buyers and care recommendations help maintain the gem s beauty and value. Because tanzanite has a moderate hardness, it benefits from settings that protect the girdle and edges, such as bezel or halo settings, or secure prong work when used in rings intended for regular wear. For casual styling, the heart shape is charming as a simple pendant worn on a fine chain, or as understated studs paired with small diamonds, while for formal settings the same gem can be elevated into a statement ring with a diamond halo or a cluster design that enhances its intense violet hue. Cleaning is best done gently with warm soapy water and a soft brush, avoiding harsh chemicals and sudden thermal shocks, and ultrasonic cleaning is not recommended for all specimens, particularly those with internal growth features. When you choose this tanzanite from The Natural Gemstone Company, you receive full disclosure on enhancement and origin, and access to our expertise in setting recommendations and custom design, ensuring that the gem is both beautiful and practical for the intended use.
























