One-of-a-kind ring composed of niobium and blue tourmaline.

Woman with a ring on her finger against a blurred background. Ring is one-of-a-kind, composed of niobium and tourmaline.

Hand with a ring on a finger against a blurred background. Ring is one-of-a-kind, composed of niobium and tourmaline.

Niobium & Blue Tourmaline Ring

€1,600.00

Brand Augusta Sofija Rudzikaite

SKU:

Size: 20

Size Guide

Here at MIUTTO most jewelry designers use ring diameter sizing which is most common in Lithuania and other European countries. To help you make sure you order the right size, please use our ring size conversion table below.

Ring Size Conversion Chart

Diameter (mm)	Circumference (mm)	EU Size	US Size	UK Size
14.0	44	44	3	E
14.4	45	45	3¼	F
14.7	46	46	3¾	G
15.0	47	47	4	H
15.3	48	48	4½	I
15.6	49	49	5	I½
15.9	50	50	5¼	J
16.2	51	51	5¾	K
16.5	52	52	6	L
16.9	53	53	6¼	M
17.3	54	54	7	N
17.5	55	55	7¼	N½
17.8	56	56	7½	O
18.2	57	57	8	P
18.6	58	58	8½	Q
18.8	59	59	8¾	R
19.1	60	60	9	R½
19.4	61	61	9½	S
19.8	62	62	10	T
20.2	63	63	10¼	U
20.6	64	64	10¾	V
20.8	65	65	11	V½
21.0	66	66	11½	W
21.3	67	67	12	X
21.8	68	68	12½	X½
22.1	69	69	12¾	Z
22.3	70	70	13	Z+1
22.6	71	71	13½	Z+2

If you're unsure of your ring size, we recommend visiting our jewelry store for a professional measurement.

You can also measure your ring size at home. Here are a few simple methods to help you do so:

Measure Your Finger

Use a flexible measuring tape or a length of string.
Wrap it around the finger you plan to wear your ring on. If you’re creating a ring stack, consider exactly where on your finger the ring will sit.
If using string, mark the point where the ends meet. Lay the string flat and measure the marked length in millimeters.
Compare your measurement to the size chart to determine your ring size.
If you fall between sizes, choose the larger size for the most comfortable fit.

Measure an Existing Ring

Select a ring that already fits the intended finger comfortably.
Measure the interior diameter of the ring across its widest point in millimeters.
The ring’s diameter in millimeters corresponds to its size. For example, if the ring’s inner diameter is 16 mm, the ring size will be 16.
If the diameter falls between two sizes, for example 18.8 mm, it is recommended to choose the next larger size—in this case, 19.

*Please note: Manual sizing methods—such as measuring your finger at home—can lead to slight inaccuracies. Please read our resizing policy below.

Resizing Policy

We will work closely with our jewelry designers to make sure that you are satisfied with your purchase. Items can be altered according to your specifications but please note that additional fees and additional delivery time may apply. We cannot, however, offer resizing on a few fine jewellery designs. Please contact us if you have any questions about a particular ring.

Rings made to order

If you cannot find a ring of your size and/or a ring you like cannot be resized, sometimes it’s possible to make a new ring if requested. Therefore, you are welcome to get in touch to discuss your requirements and we’ll do our best to accommodate them.

For more information, please email us on info@miutto.com or call our customer service at +370 680 85111.

Quantity

One-of-a-kind ring composed of niobium and blue tourmaline.

Raw, moody, and almost infinite, with a gentle fluidity between two distinct materials: hammered, patinated niobium and a rough tourmaline crystal.

Niobium is a rare, technology-critical metal valued for its strength, lightness, and unique properties used in superconductors, electronics, and optics. Through meticulous artisanal patination techniques, the material is transformed into wearable artworks that reveal its hidden beauty and expressive potential.

Rough tourmaline crystals are partially cut before they are tension set in niobium to precisely fit the width of a ring. Only particular size and shape crystals are each selected by the artist individually.

Each piece is unique and entirely handcrafted by the artist. Patinated using self-developed undisclosed technology. Artisanal metalwork techniques are combined with experimental practices. There is no glue, artificial colouring or chemicals used in the process.

Niobium is comparably light and comfortable to wear daily. Tourmaline is quite a brittle gemstone, please be aware and avoid dropping the ring forcefully onto hard surfaces.

This ring is available in custom sizes. Contact us to create your perfect fit.

Composition: niobium, rought tourmaline, 24k yellow gold (Au999)
Measurements: shank is 9.10 mm width, ~3.10 mm height
Weight: ~15.61 g
Size: See bellow. More about ring sizes. Contact us if you want a different size than we currently have.
Designer: ASR JWLS. Discover more jewellery by ASR JWLS.

Details:

All ASR JWLS jewellery comes in a branded box that is great for gifting.
All pieces have been certified in accordance with the Lithuanian Hallmarking Requirements.
MIUTTO.COM is a registered member of Lithuanian Assay Office.