Tianyu Gems is a professional lab-grown gemstone manufacturer in China.
Dozens of colors are available in all shapes and sizes, GRC certificate is available. From Hydrothermal Emerald to Lab-Grown Sapphire, Identical to top earth-mined gems, 90% cheaper, eco-friendly
Every gemstone is meticulously hand-cut in any shape and cutting you desire, ensuring unparalleled quality and brilliance. Our commitment to precision and artistry guarantees that each piece is a unique masterpiece, reflecting the highest standards of craftsmanship.
Lab-grown sapphires can be produced in various colors, such as blue, pink, yellow, green, purple and even colorless (white). These lab-grown gemstones have the same physical and chemical properties as natural sapphires, making them almost indistinguishable to the naked eye. However, gemologists can often identify them through specialized testing.
One of the main advantages of lab-grown sapphires is their affordability compared to natural sapphires, which can be quite expensive due to their rarity and the cost of mining. Additionally, lab-grown sapphires are considered more environmentally friendly since they do not require extensive mining and have a smaller carbon footprint.

Each stone features a recognizable bear shape, with rounded ears, a softly contoured head, and a full, sculpted body. The carefully designed outline creates a balanced, symmetrical look while maintaining the unique character of the bear silhouette.
Available in a beautiful range of vibrant colors, including red, purple, orange, yellow, and blue, this gemstone offers versatile options for creative jewelry designs. Each color has its own visual personality, from bold, vivid tones to soft, luminous shades.
The large central facets create attractive light reflections, while the smaller edge facets enhance the gemstone's brilliance and emphasize its distinctive outline. The combination of imaginative shaping and geometric faceting gives this design a striking three-dimensional appearance.
Whether used in playful pendants, statement rings, personalized charms, or custom jewelry collections, Bear Shape Colored Sapphire brings creativity and individuality to gemstone design.
Looking for a unique gemstone shape? We offer custom fantasy-cut gemstone services to bring your creative ideas to life. From color selection and size adjustments to customized outlines and faceting patterns, our cutting team can develop distinctive gemstones based on your drawings, reference images, CAD files, or physical samples.
Custom gemstone shapes and dimensions
Multiple color options
Customized faceting designs
OEM and ODM gemstone manufacturing
Wholesale supply for jewelry brands and designers
ANY SIZE, COLOR, CLARITY,SHAPE REQUIREMENT FOR OUR DIAMONDS AND OTHER PRODUCTS ARE MOST WELCOMED, For more cutting details, Please click here Gemstone Cuts

What’s the difference between natural and lab-grown gemstones?
The primary difference between natural and lab-grown gemstones is their origin. Natural gems form over millions of years within the earth through geological processes, while lab-grown gems are created in controlled laboratory environments using advanced technology that replicates these natural conditions.
In terms of formation, natural gemstones develop slowly under specific heat and pressure, resulting in unique characteristics, including inclusions and variations. Conversely, lab-grown gems can be produced in just weeks, often resulting in stones with fewer imperfections and consistent quality.
When it comes to properties, both types can exhibit similar physical and chemical characteristics, making them nearly indistinguishable to the naked eye. However, lab-grown gems typically lack the unique inclusions found in natural stones, which can be important for collectors.
Ultimately, while both natural and lab-grown gemstones are beautiful and valuable, their origins and formation processes significantly influence their market value and desirability. Understanding these differences can help consumers make informed choices based on personal preferences and values.
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The first thing Tianyu Gems lab grown diamond manufacturers do is meeting with our clients and talk through their goals on a future project. During this meeting, feel free to communicate your ideas and ask lots of questions.