[Canna Oshiro × Ryui] Trapiche amethyst necklace

Name: [Canna Oshiro × Ryui] Trapiche amethyst necklace
Brand: Ryui
Price: 259000.0 JPY
Availability: InStock

A one-of-a-kind Trapiche amethyst necklace featuring hand-polished cutting by gem polisher Canna Oshiro. Within the vivid purple crystal, soft white quartz lies hidden, while tiny black specks float throughout, giving the stone a unique and expressive character. The irregular layering of color creates depth and a quiet presence within a single gem. The surface is boldly cut with only three facets. Because of its simple, pared-down shape, the shifting interplay of light and shadow inside the crystal reaches the eye directly, allowing one to experience the expression as if gazing straight into the heart of the stone. Without excessive decoration, the design quietly rests on the chest as a single form. This necklace gives the sensation of wearing a singular art piece at your fingertips, where unwavering beauty breathes within a serene stillness.

" Canna Oshiro × Ryui "

A collaboration series with gem cutter Canna Oshiro, a rare practitioner of traditional hand-cutting techniques. Entrusting her with rough stones carefully selected by Ryui, she creates truly one-of-a-kind jewels through her distinctive hand-cutting approach. The loose stones, polished with Oshiro's unique aesthetic sense and precise craftsmanship—drawn from the inspiration she gains through an earnest dialogue with each expressive rough stone—are all imbued with a free and generous allure. These special pieces of jewelry are born from enveloping the irregular yet beautifully faceted, hand-polished stones in open, flowing designs, resulting in creations where artisanal skills unite in perfect harmony.

*Due to an expected increase in orders, production may take approximately 1 to 1.5 months longer than usual. Thank you in advance for your understanding.

Ring Size

Ring size conversion chart

We use Japanese sizes. For international equivalents, please refer to the correspondence table below.

Perimeter (mm)	Inner diameter (mm)	Japan (JCS)	EU (JIS / ISO)	US	UK
40.8	13	1	41	1	C
41.9	13.4	2	42	2	D
42.9	13.7	3	43	2.5	E
44	14	4	44	3	F
45	14.4	5	45	3.5	G
46.1	14.7	6	46	3.5 – 4	G – H
47.1	15	7	47	4 – 4.5	H – I
48.2	15.4	8	48	4.5 – 5	I – J
49.2	15.7	9	49	5	J
50.3	16	10	50	5.5	K
51.3	16.4	11	51	6	L
52.4	16.7	12	52	6.5	L – M
53.4	17	13	53	6.5 – 7	M – N
54.5	17.4	14	54	7 – 7.5	N – O
55.5	17.7	15	55	7.5 – 8	O – P
56.5	18	16	56	8	P
57.6	18.4	17	57	8.5	Q
58.6	18.7	18	58	9	R
59.7	19	19	59	9.5	S
60.7	19.4	20	60	10	T
61.8	19.7	21	61	10 –	T – U
62.8	20	22	62	10.5	UK
63.9	20.4	23	63	11	V
64.9	20.7	24	64	11.5	W
66	21	25	65	12	X

Resizing at the time of purchase

For rings over ¥33,000 (tax included)	We offer complimentary resizing within ±3 sizes from the size in stock. If you wish to have your ring resized, please proceed to the purchase screen of the item and enter the desired size in the remarks form in the shopping cart. Production period: about 4 weeks
For rings under ¥33,000 (tax included)	We do not accept resizing from stock items. Please contact us using the inquiry form and we will make a custom order in the desired size. Production period: about 5 weeks

Selecting your ring size

We recommend choosing a size that you can comfortably wear without feeling pressure or tightness when you make a fist, and without discomfort between adjacent fingers.

For wide rings of 6.0 mm or more
Compared to the number measured with a typical ring gauge, a wide width ring may feel a little tight to wear due to its large surface area. When considering a wide ring, we recommend that you choose a slightly looser size than you usually wear, 1 to 1.5 sizes up.

Please note that some rings cannot be resized due to their design.
Please check the details on each product page.
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