[Canna Oshiro × Ryui] Goethite in bicolor citrine ring

Name: [Canna Oshiro × Ryui] Goethite in bicolor citrine ring
Brand: Ryui
Price: 455000.0 JPY
Availability: OutOfStock

A one-of-a-kind ring featuring a geisite-in-citrine stone, hand-cut with free and expressive techniques by gem polisher Canna Oshiro. Within its bold, candy-like form, the deepest hue rises near the apex—a rich, honey-like orange. The intentionally elevated cut emphasizes this color, giving the impression that the entire stone is wrapped in orange. The lower portion carries a near-clear tone, so that depending on the light and angle, the stone can appear fully orange or present a bi-color effect. Peering inside reveals layers of mist-like haze, iridescent rainbow hues, and wine-colored geisite, creating a truly unique expression. It feels as though you are gently wearing that landscape itself. A ring that leaves a quiet yet unmistakable impression.

" 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.

material：K18YG , citrine
stone size：approx. 15.20ct
top size：approx. H20.6mm × W15.6mm × D11.8mm
ring width：approx. 1.8mm
ring size：13

I-1126

*This ring can be resized up to ±3 sizes from the stock size (delivery time: approx. 4-5 weeks). Please select "Resize from stock item", enter your desired size after resizing in the options, and then proceed with your purchase.
*If you would like resizing of more than ±3.5 sizes, please contact us via Contact.

¥455,000

Sale Sold out

Product variants

Regarding made-to-order and resizing items:
Please note that during busy periods, production may take an additional 1–3 weeks beyond the usual timeframe.We appreciate 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.
Contact

Please feel free to contact us using the form below.

Contact Form