- Stone9
- Reports3
-round-purple-spinel-3.5700-cts-k20579-1.jpg?d=200x200&v=20251212160949)
-round-purple-spinel-3.5700-cts-k20579-1.jpg?d=200x200&v=20251212160949)
-round-purple-spinel-3.5700-cts-k20579-lifestyleimage-1.jpg?d=200x200&v=20251217042638)
-round-purple-spinel-3.5700-cts-k20579-lifestyleimage-2.jpg?d=200x200&v=20251217042638)





3.57 Ct. Purple Spinel from Ceylon (Sri Lanka)
Item ID: | K20579 |
|---|---|
Dimensions (MM): help | Length: 8.85 Width: 8.65 Height: 6.36 |
Weight: | 3.57 Ct. |
Color: help | Purple |
Color intensity: help | Intense |
Clarity: help | Included |
Shape: help | Round |
Cut: | Mixed Brilliant Cut |
Cutting style: | Faceted |
Enhancements: help | Heat Treated |
Origin: help | Ceylon (Sri Lanka) |
Per carat price: help | $1,850 |
From the moment this spinel was found in the storied soils of Ceylon, Sri Lanka, it began a journey that speaks to patience, skill, and the rare generosity of nature,. Our miners recognized the rough stone for its unusual hint of purple, a color that becomes more precious the clearer and larger the material is, and carefully extracted the crystal with respect for the land and local traditions,. At The Natural Gemstone Company we treasure stones that carry a clear provenance, and this 3.57 carat purple spinel arrived with the quiet confidence of a gem that was meant to be seen, not hidden, its transparent body promising a depth of color and light, that most smaller or heavily included stones cannot deliver,,. The weight of 3.57 carat anchors this stone in a category that few purple spinels reach in transparent quality, and that weight is the single most important factor that transforms a pretty gem into an exceptional one,.
The lapidary work that followed was an act of translation, where rough character became finished brilliance, and where every decision balanced yield with optical performance,. The cutter chose a faceted, mixed brilliant style to maximize fire and return of light, refining the final measurements to eight point eight five by eight point six five by six point three six millimeters, a proportion that preserves the gem s mass while allowing the pavilion and crown to interact with light in a lively way,. At three point five seven carat the stone carries presence, and the mixed brilliant cut gives it scintillation and a round symmetry that makes it ideal for solitaire settings or for designs that place the gem at center stage,. The polish on this stone is excellent, each facet meeting the next with a smoothness that sends flashes of violet and lilac across the surface, while the included clarity grade evaluated at eye level adds character and confirms the natural origin of the piece, rather than suggesting heavy laboratory manipulation,.
Weight is often spoken of as a dry measure, but with colored gemstones it is the pulse of value and rarity, and this three point five seven carat spinel shows exactly why, when a transparent purple spinel carries this much weight it moves into a rarified market position, where collectors and designers recognize the scarcity, and where price moves up more than linearly as carat increases for comparable color and clarity,. A half carat here and a full carat there do not simply add weight, they change how light travels through the stone, how the color saturates with depth, and how the gem sits within a setting, and at three point five seven carat this spinel already reads as a substantial jewel on the hand, without overwhelming delicate designs, or without needing heavy metal to make it feel important,. The intense color intensity of this piece is a further multiplier, the kind of vivid yet complex purple that can read differently under warm and cool lighting conditions, bringing out hints of lavender and deeper violet as the gem turns, and that kind of dynamic beauty is most compelling when it is carried on a larger weight like this,.
Transparency, a fine cut, and a notable carat weight are all part of the story, and so is the gentle enhancement that brings out the best in many fine spinels, heat treatment, which in this case has been used to stabilize and intensify the stone s natural hue, while retaining natural inclusions and the stone s inherent character,. At The Natural Gemstone Company we disclose this treatment because clarity about the stone s history is part of our commitment to collectors and to artisans who will set this gem, and because many connoisseurs prefer treated gems that display superior color and still tell an honest story,. The included clarity grade means that small internal features can be seen at eye level, and those features are often what testifies to the gem s natural origin and why a three point five seven carat transparent spinel from Ceylon is so thrilling, and when set with care these natural inclusions become part of the gem s fingerprint, distinguishing it from every other stone,. This spinel wears beautifully on the finger as shown in the images, sitting at the nexus between wearable and remarkable, making it a wonderful choice for an engagement piece, a personal heirloom, or a standout collector s item,.
We invite you to consider the combination of origin, weight, cut, and finish that defines this purple spinel, and to imagine the conversations it will carry forward, from the Sri Lankan mine to the jeweler s bench, to the moment it is placed in a setting that honors its size and color,. The Natural Gemstone Company stands behind this gem with full disclosure of its heat treatment, and with guidance on selection of mounting and care, because a gem of three point five seven carat deserves a setting that both protects and celebrates its presence, and because provenance and honest grading are part of how value is preserved over time,. If you would like bespoke setting suggestions, comparative market context for three carat plus purple spinels, or help coordinating secure appraisal and shipping, we can provide expert support, so that this spinel becomes not only an object of beauty, but a considered acquisition with a clear story and lasting worth.




-round-purple-spinel-3.5700-cts-k20579-1.jpg?d=750x750&s=ngc&v=20251212160949)
-round-purple-spinel-3.5700-cts-k20579-lifestyleimage-1.jpg?d=750x750&s=ngc&v=20251217042638)
-round-purple-spinel-3.5700-cts-k20579-lifestyleimage-2.jpg?d=750x750&s=ngc&v=20251217042638)
















