Pair of Maligano Jasper cabochons from Sulawesi, Indonesia, hand-selected for pattern and tone matching.
Piece Details
| Mineral |
Maligano Jasper (brecciated chalcedony with amorphous opal; microcrystalline quartz family) |
| Dimensions |
22×19×5 mm · 16×13×5 mm · 23×12×5 mm · 19×15×4 mm depending on variation (tolerance ±0.5 mm) |
| Shape and Back |
Freeform, flat back |
| Finish |
Mirror polished face, unpolished flat back |
| Hardness |
6–6.5 Mohs — we recommend bezel setting to protect the edges |
| Origin |
Sulawesi, Indonesia (Maligano region) |
| Treatment |
Untreated |
| Piece Type |
Pair of unique pieces: each variation is an unrepeatable pairing |
This specific piece
Lot no. 3 features pairs with particularly marked color saturation: the jasper fragments show tones ranging from jade green to peacock blue, separated by creamy-yellow opal veins that provide contrast.
The four formats cover different needs: the 22×19 mm is suitable for long earrings or pendants; the 16×13 mm fits double rings or discreet studs; the elongated 23×12 mm adapts to narrow oval bezels; the 19×15 mm offers a balance between proportion and ease of mounting.
How Maligano Jasper pattern is formed
Maligano Jasper is a hydrothermal breccia formed in the volcanic calderas of Central Sulawesi.
What setting it works for
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925 silver bezel earrings (stud or short dangle) — manual pairing ensures that both bezels have the same depth and face length. The closed bezel protects the edges, which is necessary for a jasper of 6–6.5 Mohs that can chip upon impact on sharp edges.
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Double rings or statement ring — the smaller formats (16×13 and 19×15 mm) fit into double cabochon settings or wide band rings with continuous bezel in 925 silver or other precious metals.
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Symmetrical wire wrap — an alternative for those who work with silver or copper wire; the pair offers immediate visual balance and the green-blue of Maligano Jasper stands out with oxidized silver or patinated copper wire.
Maligano Jasper in lapidary tradition
Maligano Jasper is one of the most recently incorporated lapidary materials into the international market: its systematic commercialization began in the mid-2010s, when artisans from Central Sulawesi began exporting material from ancient local volcanic deposits.
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 Maligano Jasper
Authentic Maligano Jasper shows an unequivocal breccia structure under magnification: the angular fragments are delimited by opal or chalcedony lines slightly differentiated in brightness and surface texture.
Frequently Asked Questions
Is the Maligano Jasper in this lot treated or dyed?
No detectable treatment. The green-blue color is intrinsic to the mineralogical composition of the jasper fragments, a product of metallic oxides incorporated during hydrothermal formation in Sulawesi.
What setting is recommended for it?
We recommend a closed bezel setting in 925 silver or other precious metal.
Are the two stones in the pair exactly the same?
They are natural pieces with freeform shapes: the pattern, tone, and outline vary slightly between the two cabochons in the pair.
Are they sold as a pair or as individual pieces?
They are sold as a pair: each option in the selector includes two cabochons selected together.
What is the depth (thickness) of the cabochons?
Between 4 and 5 mm depending on the variation. The depth has a tolerance of ±0.5 mm as they are freeform pieces. Consult the photo of each variation for more details.
How to care for Maligano Jasper?
Clean with a soft damp cloth without abrasive detergents or ultrasonics. Store separately from harder minerals to avoid scratching the polished face. More information in our jewelry care guide.
See more cabochons for earrings and rings: cabochon collection. Silversmithing materials: silversmithing.
