These natural Ethiopian opal cabochons are expertly shaped into trillion cuts—a sleek triangular form that gives off vibrant flashes of red, green, and orange. Available in 4MM to 10MM sizes, each piece is calibrated and polished with precision, making them perfect for high-end custom rings, pendants, or earrings.

Whether you're sourcing for a jewelry brand or a personal project, these AAA-quality trillion opals offer rich color, translucent clarity, and reliable size accuracy.

Want more shape options? Explore our calibrated cushion cabochons to pair with this design.

Calibrated Ethiopian Opal Trillion Cabochon- 4-10mm | A to AAA quality

$43.00

Quantity

✦ Stone Name: Ethiopian Opal
✦ Shape: Trillion
✦ Type: Calibrated Cabochon
✦ Treatment: Natural (Untreated)
✦ Origin: Ethiopia
✦ Clarity: Translucent
✦ Cut: Smooth Cabochon
✦ Size Range: 4MM to 10MM
✦ Grades Available: A / AA / AAA

Size	Avg. weight of 1pc. ( in carat )	Avg. pcs. in 10 carats	Avg. pcs. in 15 carats	Avg. pcs. in 20 carats	Avg. pcs. in50 carats
4mm	0.18	56	83	111	278
5mm	0.31	32	48	65	161
6mm	0.52	19	29	38	96
7mm	0.77	13	19	26	65
8mm	1	10	15	20	50
9mm	1.48	7	10	14	34
10mm	2.05	5	7	10	24

Minimalist Rings: The triangle shape stands out even in tiny sizes.

Chakra Healing Jewelry: Trillion opals are believed to stimulate joy and transformation.

Artisan Brands: Use matched pairs for earrings or geometric pendant layouts.

Gem Collectors: Trillions are rare in natural opals, making them valuable additions.

October Birthstone Designs: Stand out with this fancy shape in birthstone jewelry.