10 · October · Opal / TourmalineRepresentative photograph. Natural stones vary in colour and inclusions from piece to piece — yours will not be identical to this one.
Opal Stud Pair 5 mm
Solid opal cabochons on silver posts. Delicate grade.
Coloured stones are natural material. Colour, tone, inclusion pattern and — on cabochons and uncut pieces — outline and size differ from one to the next. Two pieces of the same reference will not be identical.
Gem declaration
Stated in full before you buy — what these terms mean
- Species
- Opal (hydrated silica)
- Origin
- NaturalFormed in the earth. Cut and polished by people; the material itself is not made by people.
- Treatments
- UntreatedCut and polished only. Nothing has been added to or done to this stone.
- Carat
- 0.50 ct each — 1.00 ct across 2 stones
- Size
- 5.0 mm round cabochon, each
- Mohs hardness
- 5.5 – 6.5
- Wear grade
- Delicate — special occasions only
Total carat weight1.00 ct TCWThis is the combined weight of all 2 stones in the piece, not the weight of any single stone.
Wearing it
Delicate — special occasions only
- Remove before any physical activity — knocks will chip this stone
- Keep away from perfume, hairspray, cosmetics and hand sanitiser
- Avoid sudden temperature change and prolonged dry heat
- No ultrasonic tank, no steam, no soaking
Metal
- Metal
- 925 sterling silver
- Fineness
- 925
- Net metal weight
- 1.50 g
- Hallmark
- Below the statutory exemption weight — not hallmarkedAt 1.50 g this article is under the 7.78 g exemption for 925 sterling silver in the Hallmarking Act 1973, so a UK hallmark is not required. The metal is still solid 925 fineness; the exemption concerns marking, not the alloy. Read the exemption weights.
- Plating
- None — solid metal throughout, not plated, filled or coated
- Nickel release
- Nickel-safe, tested to UK REACH limitsThis item is inserted into a pierced ear, so it is tested against the 0.2 µg/cm²/week release limit for post-assemblies. It also meets the lead limit of 0.05 % and the cadmium limit of 0.01 %. We do not describe any item on this site as suitable for every skin, because no material can be.
Cleaning limits for this piece
- Porous stone: no ultrasonic, no steam, no soaking. Keep away from perfume, hairspray, cosmetics and household cleaners. Put it on last, take it off first.
- Mohs 5.5 – 6.5: this stone is softer than household dust, so it will scuff if it is rubbed against harder surfaces. Store it separately, not loose in a jewellery box.
Full method on the care guide.
Add to your basket
- Price and VAT
- £115 including VAT at the applicable UK rate. Delivery is charged separately and shown in full before payment.
- Delivery
- Tracked UK delivery from £4.95, free over £120. Dispatched within two working days. Delivery and shipping restrictions.
- Changing your mind
- 14 days from delivery to change your mind. Pierced earrings cannot be returned once the hygiene seal has been opened. Your rights if the item is faulty are unaffected. Returns, refunds and the withdrawal form.
About this piece
Solid opal domes in rubover bezels, which cover the girdle completely — the most protective setting available for a Mohs 5.5 material. Even so, these are graded delicate. Take them out before sleeping; a pillow at an angle is enough to abrade an opal over time.
Total carat weight across all 2 stones: 1.00 ct. The wear grade shown for the piece as a whole is delicate, because a piece is only as forgiving as its softest stone.
