Large oval chevron amethyst cabochons — 47 to 66 mm long — with the V-band pattern alternating purple amethyst and white milky quartz inclusions.
Item details
| Mineral |
Chevron Amethyst (purple quartz with milky quartz, macrocrystalline quartz family) |
| Dimensions |
47-66 mm long × 35-50 mm wide approx. (assorted sizes; check product image) |
| Shape and back |
Oval, flat back |
| Finish |
Mirror polished on top face; smooth back |
| Hardness |
7 Mohs — suitable for regular use; we recommend closed bezel settings to protect edges on large pieces |
| Origin |
Brazil |
| Treatment |
No treatment |
| Item type |
Selected stock; each unit has an individual pattern within the range |
These specific pieces
The XL format (47-66 mm) is the range where the V-bands of chevron amethyst reach their maximum visual expression: the purple-white alternation is legible from a distance, turning these pieces into focal points for designer jewelry.
The size implies weight: for pendants, chains of at least 1.5 mm gauge or wide leather cords are necessary.
How chevron amethyst's V-bands are formed
Chevron amethyst, also called dogtooth amethyst or banded amethyst, forms in quartz veins and dikes where successive crystallization episodes deposit alternating layers of amethyst quartz (purple, due to iron traces activated by natural irradiation) and milky quartz (white, due to micro-inclusions of fluids during crystallization).
Suitable for which setting
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Bezel setting (925 silver or other precious metals) — the large oval format lends itself to 0.8-1.2 mm round wire bezels or 0.5 mm cut sheet bezels. The flat back ensures stable seating. For medallion pendants, a bezel with a 2-3 mm collar holds the piece well and allows the bands to be the visual protagonist.
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Pendulum pendants and silver medallions — the XL size makes these pieces focal points for designer jewelry. The estimated weight (15-35 g) requires chains of ≥1.5 mm gauge or leather cords.
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Wire wrap — the large format allows for open wrapping of multiple spirals. The flat back provides a firm base to anchor the first structural wires before working the sides.
Amethyst in lapidary tradition
Amethyst has one of the most continuous documented gemological trajectories: it appears in Exodus as one of the twelve stones of the High Priest's Breastplate, it was carved into Roman intaglios for seals of authority, and the Catholic Church reserved it for medieval episcopal rings, where purple was the color of clerical rank.
The symbolic properties attributed to minerals belong to cultural and historical traditions. They are shared for educational purposes, not as medical advice or a substitute for professional care.
How to recognize genuine chevron amethyst
The white and purple bands should converge in a V towards the upper center when the piece is viewed from the front.
Frequently asked questions
Is chevron amethyst natural or treated?
No detectable treatment. The purple coloration is natural, produced by iron traces activated by gamma radiation during the geological formation of the rock.
What type of jewelry is this XL size recommended for?
Due to its format (47-66 mm long), these pieces are intended for large medallion pendants, brooches, or occasional cocktail rings.
Are the pieces calibrated to an exact size?
No. Each piece is unique in dimensions within the 47-66 mm range.
Why are some areas purple and others white?
The white bands are milky quartz (with micro-inclusions of fluids trapped during crystallization) and the purple ones are amethyst quartz.
How does size affect weight and mounting design?
A piece measuring 55 mm × 40 mm × 8 mm can weigh between 20 and 30 g.
How to care for chevron amethyst?
Avoid prolonged exposure to intense direct sunlight, which can fade the purple over time. Clean with a soft, slightly damp cloth, no ultrasonics. See the complete guide in jewelry care.
More about amethyst: properties and uses of amethyst. See the entire collection in cabochons.
