Sapphire is commonly thought of as a blue transparent gemstone, but in reality, it comes in a wide variety of colors and degrees of transparency. Beloved for thousands of years, it is the second-hardest precious stone after diamond. The sapphires we have carefully selected for this piece are two stones characterized by lines of hexagonal crystals formed over a long period of time, called "growth lines," with a delicate and silky luster. Depending on the light source, a faint star-like glow called the asterism effect appears, giving the stones a sense of depth. The ring is bi-colored with 18K gold and platinum, with a simple matte-textured bezel setting that accentuates the charm of the sapphire. The back of the setting has been carefully designed for a light feel that balances form and comfort. The crystalline "growth lines" give this piece a quiet beauty and an understated individuality. An enchanting sapphire ring that invites you to witness the grand flow of time within the natural world.
【 Ryui Monthly piece 】
Gemstones shaped by time and chance No two are the same Our designers carefully select a "fragment" of nature every month Sharing with you the design and production process until it becomes jewelry —a special collection.
material : K18 , Pt900 , sapphire
stone size：approx. 8.403ct
ring size : 13
*This ring can be resized within ±3 sizes from the stock size (delivery time: about 4 weeks). Please select "Resize from stock size" Please fill in your desired size in the option form and proceed to purchase.
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.
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