Tsavorite garnet is one of the most admired green gemstones in the world, valued for its vivid natural color, lively brilliance, and fine jewellery appeal. This City of Gem cutting journey began with a 65.50 ct parcel of natural unheated facet-grade Tsavorite rough from Tanzania, East Africa. The parcel contained 9 rough stones, each selected for its attractive green color, transparency, and cutting potential. Through careful planning, one rough stone was trimmed and separated into two pieces, allowing the final project to produce 10 finished gemstones.
The rough material showed the powerful green character that makes Tsavorite so desirable. Unlike many green gemstones, Tsavorite is appreciated for its natural color, and this parcel carried a vibrant green appearance with strong visual life. Before cutting, each rough stone had to be studied individually. The cutting team examined shape, transparency, inclusions, color concentration, weak areas, and possible finished form. This stage is especially important with Tsavorite because the best result is not only about saving weight. A successful cut must balance color, clarity, brilliance, face-up beauty, and long-term jewellery value.
This project was sourced and managed by City of Gem for a custom request from a customer in Israel. The aim was to transform the Tanzanian Tsavorite rough into a finished gemstone collection suitable for jewellery design. The cutting plan included different shapes such as octagon, cushion, marquise, pear, round, oval, and heart. Each shape was chosen according to the original rough structure and the best possible direction for beauty and final use. Instead of forcing every stone into one standard shape, the parcel was treated stone by stone, allowing each piece to reveal its own strongest character.
The original rough weight was 65.50 ct, and the finished collection reached a total of 22.85 ct after cutting. This gives an approximate recovery of 34.9%. The finished stones ranged from around 1.82 ct up to the 4 ct range. In gemstone cutting, especially with Tsavorite, this kind of recovery must be understood practically. Some unnecessary areas were removed to improve shape, brilliance, clarity, and color performance. In a few stones, especially pieces that may have had possible 5–6 ct yield potential, more weight was intentionally reduced to improve clarity and final face-up quality according to the customer’s request. This shows the real decision-making behind custom cutting: sometimes the better gemstone is not the heaviest stone, but the stone that looks cleaner, brighter, and more suitable for fine jewellery.
Tsavorite is not cut exactly like sapphire. Sapphire, as corundum, is harder and behaves differently on the cutting wheel. Tsavorite garnet is softer than sapphire and can be ground away more quickly when removing unnecessary areas. This means the cutter must be very careful during grinding and preforming. If pressure, angle, or planning is not controlled properly, too much weight can be lost before the final shape is established. With Tsavorite, every movement on the wheel matters. The cutter must remove the problem areas while protecting weight, keeping good symmetry, and preserving the best green color zone.
The transformation from rough to finished gems also shows the importance of experience. A rough stone may look promising at first, but once trimming or preforming begins, inclusions, tension areas may become more visible. The cutter must respond carefully at each stage. In this parcel, the goal was not only to create a group of finished stones, but to create a balanced custom collection with different shapes, strong green color, and practical jewellery potential. The final result shows how source selection, cutting judgment, and customer requirements come together in one project.
For jewellery designers and fine gemstone buyers, a collection like this is meaningful because it offers variety within one source-connected story. Octagon and cushion shapes can be suitable for rings or structured jewellery designs. Pear, marquise, oval, round, and heart shapes give more creative options for pendants, earrings, accent layouts, and custom jewellery pieces. Because the stones came from one Tanzanian Tsavorite rough parcel and were cut together under one plan, the finished collection carries a strong sense of unity while still allowing each gemstone to have its own shape and personality.
For, gemstone buyers, and customers looking for reliable gemstone sourcing, this project explains what City of Gem does clearly: City of Gem sources rough gemstones, evaluates cutting potential, manages cutting and polishing, and prepares finished gemstones according to customer requirements. This is not only a sale of rough material or finished stones. It is a source-to-finish gemstone service, where rough selection, lapidary planning, cutting decisions, and final presentation are handled with practical market knowledge and transparency.
The journey from 65.50 ct of Tanzanian Tsavorite rough to 22.85 ct of finished gemstones is a realistic example of gemstone transformation. It includes weight loss, risk, planning, clarity improvement, shape selection, and the need to balance beauty with yield. The finished 10-piece Tsavorite collection reflects the natural strength of East African green garnet and the careful work needed to bring that beauty into jewellery-ready form. For City of Gem, this is the kind of project that represents real gemstone work: source-connected material, honest cutting decisions, custom buyer requirements, and finished gemstones prepared with purpose.
