Cultivated Emerald Gemstone 5mm to 12x16mm size range in round, asche, egg, pear, heart, and princess cut shapes for jewellery making and decoration projects in Columbia green colour.
Cultivated Columbia Green Emerald Gemstones in Round, Asche, Heart, and Princess Cut Shapes

These cultivated emerald gemstones offer a versatile source of Columbia green colour for jewellery makers, hobbyists, and designers. As an artificial gemstone material, they provide consistent colour and clarity across a wide range of sizes and intricate cut shapes. From the classic simplicity of a 5mm round stone to the distinctive facets of a princess square or the modern geometry of an asche cut, this selection supports precise creative vision. The detailed specification list allows you to match exact dimensions and approximate carat weights to your project needs, whether for repairing a piece of jewellery, creating a new adornment, or adding decorative elements to an object. Each stone is polished to enhance its visual appeal, making it ready for setting or display.
Features and Construction

This product is defined by its extensive variety and precise specifications. The core offering is a single cultivated emerald gemstone, selected from one of over forty listed size and shape combinations. Each variant is presented with its exact measurements and an estimated carat weight range, providing clear parameters for your selection.
Material and Build
The gemstone is made from cultivated emerald, an artificial material chosen for its consistent Columbia green colouration. The material undergoes a polishing process, resulting in a finished surface suitable for decorative and ornamental applications. This construction provides a practical alternative to mined stones for projects where colour consistency and availability in specific sizes are priorities.
Size and Practical Fit
The size range is comprehensive, catering to different scales of work. Smaller options like the round 5mm (approx. 0.5ct) or heart-shaped 5x5mm are suited to delicate jewellery, while larger pieces like the egg shape 12x16mm (approx. 10ct) or asche 10x10mm (approx. 4.6ct) serve as focal points or statement pieces. The dimensions are provided in millimetres for round stones and as length-by-width measurements for fancy shapes, ensuring you can assess the physical footprint for your setting or design layout.
Uses and Placement

The product's primary application is as a decorative element. The combination of the vibrant Columbia green colour and the polished finish makes these stones suitable for various creative and ornamental purposes.
Event or Professional Use
For professional jewellers or commissioned work, the availability of specific cuts like princess square, grandmother cut, or fat cube allows for matching or replacing stones in existing pieces. The approximate carat weight estimates aid in creating balanced designs or replicates. The sugar tower cut and asche shapes offer contemporary options for modern jewellery design, providing distinctive visual texture and light reflection.
Everyday Home Use
For hobbyists and crafters, these stones can be used in creating custom jewellery, such as rings, pendants, or earrings. They are also applicable for decorating other items like boxes, frames, or wearable art, where a touch of green colour is desired. The variety enables experimentation with different shapes—from the soft curves of pear and egg shapes to the sharp lines of fat square and princess cuts—within a single colour theme.
Benefits and Buying Value

The value lies in the specificity of choice and the practicality of the cultivated material. You are purchasing a defined component for your project rather than a generic decorative stone.
Reuse and Low Maintenance
As a solid gemstone, it can potentially be re-set or re-used in different projects if handled appropriately. The polished surface requires only careful handling to avoid scratches and maintain its appearance, implying straightforward care. Its durability is that of a typical polished stone intended for decorative use.
Why Choose This Product
This product is chosen for the detailed choice it offers. Where other suppliers might list only a general size or shape, here you can select a fat triangle 7x7mm (approx. 1.3ct) or a pear shape 6x9mm (approx. 1.5ct) with confidence in the provided dimensions. This level of detail supports accurate project planning and reduces uncertainty, making it a practical option for anyone needing a specific gemstone component in Columbia green.





