These round-shaped faceted Ethiopian opals range from 3MM to 12MM and are perfect for anyone who loves working with natural gemstones. The precise faceting reveals the stone’s vibrant play of color, making each piece a showstopper in fine jewelry.

Sourced directly from Ethiopia and cut in Jaipur, these loose opals are calibrated to fit seamlessly into professional designs. Whether you're a jewelry designer or a gemstone collector, these high-quality round fire opals are a timeless addition to your collection.

🔗 Looking for something unique? Explore our calibrated trillion opals for more fancy design options.

Faceted Round 3-12mm Calibrated Ethiopian Opal Lots- A to AAA grade

$54.00

Quantity

✦ Stone Name: Ethiopian Opal
✦ Shape: Round
✦ Treatment: Natural (Untreated)
✦ Origin: Ethiopia
✦ Clarity: Translucent
✦ Size Range: 3MM – 12MM
✦ Grade Options: A, AA & AAA Quality
✦ Cut Type: Faceted (not the shape)
✦ Use: Ideal for Fine Jewelry, Studs, Rings, Pendants

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
3mm	0.07	143	214	286	714
4mm	0.17	59	88	118	294
5mm	0.3	33	50	67	167
6mm	0.5	20	30	40	100
7mm	0.75	13	20	27	67
8mm	1.15	9	13	17	43
9mm	1.57	6	10	13	32
10mm	2.15	5	7	9	23
11mm	2.7	4	6	7	19
12mm	3.5	3	4	6	14

Use 3–5MM sizes for delicate studs or minimal rings.

8–12MM opals work best for bold statement pendants or cocktail rings.

Pair with white or yellow gold to highlight the stone’s rainbow hues.

Match calibrated sizes in pairs for earring sets or multi-stone jewelry.