Polychrome jasper oval cabochon from Germany, dark blue-gray background with amber and gold veins. Rounded edge and flat back. Hand-cut in our workshop from German rough.
Piece details
| Mineral |
Polychrome Jasper (microcrystalline quartz, multicolor variety) |
| Dimensions |
Left: 20 × 10 × 3.6 mm / Right: 20.6 × 10 × 4.5 mm. ±0.5 mm due to hand-cutting. |
| Shape and back |
Oval, rounded edge, flat polished back |
| Finish |
Mirror polish |
| Hardness |
6.5–7 Mohs — very durable for rings and pendants |
| Origin |
Germany (rough from German lapidary) |
| Treatment |
Untreated |
| Piece type |
Single piece (left or right) |
This particular piece
The jasper in these pieces has a dark blue-gray background—almost black in some areas—with warm amber, gold, and ochre veins and spots flowing diagonally. The pattern's movement varies between the two pieces: the left cabochon has more dark area with fine, continuous golden threads; the right one shows wider amber zones with soft transitions to gray.
The elongated oval shape (20×10 mm) is a lapidary choice: the jasper from this German rough has a banded and diagonally veined pattern that is best showcased in a long, narrow silhouette.
How polychrome jasper forms
Jasper is an opaque variety of microcrystalline quartz whose color and pattern depend on the minerals included during formation: iron oxides provide amber and ochre tones; argillite and manganese provide grays and blacks. Polychrome jasper forms in sedimentary and volcanic deposits where different mineral layers are encapsulated within the siliceous mass. The German rough of these pieces shows a high content of warm iron oxides on a dark phase base.
Suitable for which settings
-
Bezel setting (925 silver or other precious metals) — the elongated oval fits elliptical bezels; 6.5–7 Mohs hardness allows for open or closed settings
-
Statement rings / Pendants with silver mounting — the amber on dark gray pattern takes center stage in polished or brushed silver settings
-
Wire wrap — the rounded edge facilitates perimeter wire gripping
Jasper in lapidary tradition
Idar-Oberstein (Rhineland-Palatinate, Germany) was for centuries the most important lapidary center in Europe: its artisans cut local jasper and agate and processed rough imported from all over the world. The region explains the high quality of the available German rough. In crystal tradition, jasper is associated with stability and perseverance — the stone of those who build patiently.
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 jasper
Genuine jasper is completely opaque and has a hardness of 6.5–7 Mohs. Under magnification, the surface is smooth and homogeneous with no visible grain. Imitations made of ceramic or colored glass are lighter, have different reflections, and may show artificial edges in the pattern or internal bubbles.
Frequently asked questions
Does this jasper have any treatment?
No. No detectable treatment. The color and pattern are the result of the material's natural mineralogy. Statement based on lapidary observation; the piece does not include formal gemological certification.
Can both cabochons be purchased to be used as earrings?
Yes. Both variants are from the same batch of German rough with the same color range and finish. Dimensions differ slightly (±0.6 mm) and the pattern varies, which is inherent to natural material and artisan cutting.
How do I care for it?
Clean with a soft cloth or water and neutral soap. Jasper is stable and tolerates daily exposure well. See jewelry care.
What are the exact dimensions?
Left: 20 × 10 × 3.6 mm. Right: 20.6 × 10 × 4.5 mm. ±0.5 mm due to hand-cutting.
See also: all cabochons · artisan lapidary.
