







Sia Birthstone Ring
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Stone: Premium hand-cut 5A Cubic Zirconia
Stone Size: 6 × 9 mm (1.5 carat equivalent)
Dimensions: 8 mm total width
Description: Featuring a sleek wave band and a pear-cut birthstone, this minimalist ring combines modern elegance with everyday sparkle. Personalize it with your birthstone or choose the birthstone of someone special for a meaningful touch.
A customer favourite for pinky styling, it's perfect to wear solo, stacked, or as a matching ring with someone you love.
Pinky Ring Sizing Guide:
- XXXS / US 3 – Best for very petite pinkies
- XXS / US 4 – Best for most pinkies (our most popular size)
- XS / US 5 – Best for slightly larger pinkies
Material
We use a premium 316L stainless steel base metal to ensure our jewellery is durable, recyclable, and hypoallergenic. Our pieces are then coated with a thick layer of 18K gold.
They are coated using an advanced high-power magnetron process which produces a spectacular lustre and ensures the coating will never fade or tarnish.
They are waterproof and sweatproof so wear them wherever, whenever.
Warranty & Care
At Olivia Jewelry, we stand behind the quality of our pieces with a 2-Year Warranty. Enjoy peace of mind knowing that we will repair or replace any item that does not meet our high standards.
To keep your jewelry looking its best, store it in a cool, dry place and avoid exposure to harsh chemicals.
Made to Order
UNITED KINGDOM: 4-8 working days after dispatch.
Rest of the world: 5-12 working days after dispatch.
*Personalized products are designed, hand crafted, then shipped in 4-8 days
Measure the internal diameter of a ring that fits your desired finger, then use the chart below to determine your size. Alternatively, if you already know your size in a different region, use the chart to convert it.
| Diameter | Standard | EU | US | UK |
|---|---|---|---|---|
| 14 | XXXS | 44 | 3 | F |
| 15 | XXS | 47 | 4 | H |
| 15.75 | XS | 49 | 5 | J |
| 16.5 | S | 52 | 6 | L |
| 17.5 | M | 54 | 7 | N |
| 18 | L | 57 | 8 | P |
| 19 | XL | 60 | 9 | R |
| 19.75 | XXL | 62 | 10 | T |
We recommend sizing up. Rings that are slightly larger are more comfortable to wear and easier to put on and take off. If you're still unsure, our team is happy to help — just reach out before you order.
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