Oval cabochon of hyaline quartz with mirror polish and high clarity. Dimensions: 22×16×9 mm. The regular dome and flat back facilitate direct bezel setting in 925 silver. Unique piece — clear quartz of this size is the standard format for statement rings and large pendants in jewelry making and wire wrapping.
Piece details
| Mineral |
Hyaline quartz (SiO₂ — silicon dioxide) |
| Dimensions |
22×16×9 mm (length × width × height) |
| Shape and back |
Oval, flat back |
| Finish |
Mirror polish |
| Hardness |
7 Mohs — we recommend closed bezel setting |
| Origin |
Material acquired from a wholesale lapidary market |
| Treatment |
Untreated |
| Type of piece |
Unique piece |
About this specific piece
The clarity of the quartz in this cabochon is high: under strong light, the mineral mass transmits light without significant interruptions, giving the cabochon an almost optical crystal appearance. The dome is well-proportioned in relation to the oval size — neither too high (which would make side setting difficult) nor too flat (which would lose the characteristic magnifying glass effect of quartz without inclusions).
How cabochon-grade quartz grows
Lapidary-quality hyaline quartz comes from hydrothermal veins with particularly stable growth conditions: constant temperature, silica-rich fluid, and absence of contaminating minerals. The clearest areas within a crystal are selected and cut into cabochons — the slab the lapidary extracts must avoid internal fractures and any inclusion zones that reduce transparency. The oval format is the most efficient for utilizing the material with minimal waste from a natural quartz prism.
What mounting it works for
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925 silver bezel setting (statement ring) — 22×16 mm is the standard format for large stone rings. The bezel wall should be at least 2.5 mm high; the 9 mm dome fits comfortably without unusual wall protrusions.
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Pendant with silver mounting — The oval at this scale hangs well horizontally or vertically. With a soldered bail or in a bezel box, it is one of the most common formats in classic lapidary pendants.
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Wire wrap in silver or copper — The flat back and regular dome facilitate wrapping without the stone rolling during execution. Transparent quartz allows the setting to be seen from the front if the wire is below the dome.
Transparent quartz in lapidary tradition
Quartz was the first stone recorded in lapidary history: the Indian Vedas (15th century BC) describe it as mineral purity, and Greek and Roman civilizations carved it into spheres and cameos before developing techniques to work other gems. In crystal tradition, transparent quartz (clarity and amplification) is the quintessential reference stone in any collection. In jewelry, the chromatic neutrality of quartz makes it ideal as a background to enhance metalwork.
The symbolic properties attributed to minerals belong to cultural and historical traditions. They are shared for educational purposes, not as medical advice.
How to recognize genuine hyaline quartz
Genuine quartz has a strong vitreous luster and a white streak. With a hardness of 7 Mohs, it scratches glass effortlessly.
Frequently asked questions
Is it a unique piece?
Yes. This cabochon is a unique piece; once sold, it will not be restocked with the same stone. Quartz cabochons vary in clarity, tone, and presence of micro-inclusions between pieces, although the 22×16 mm oval format is standard.
Is it treated?
No detectable treatment. Clarity is natural. Statement based on lapidary observation; no formal gemological certification.
Are the dimensions exact?
22×16×9 mm with a tolerance of ±0.5 mm in any direction as it is not an industrially calibrated piece. Measure before preparing the mounting to ensure fit.
What bezel size is it designed for?
For an internal 22×16 mm oval bezel. The bezel wall should be at least 2 mm high to hold the 9 mm dome. Standard mountings for this format are sold by jewelry findings suppliers.
More about quartz: properties of transparent quartz. See also: all cabochons.
