About – 1090

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cm inches

Prada size	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31	32	33	34	35	36
United States	1	2	2 1/2	3	3 1/4	3 3/4	4 1/4	4 1/2	5	5 1/4	6	6 1/4	6 3/4	7	7 1/4	7 1/2	8	8 1/2	8 3/4	9	9 3/4	10	10 1/2	10 3/4	11	11 3/4	12	12 1/2	12 3/4	13	13 1/2	13 3/4	14	14 1/2	15	15 1/2
Diameter	1.30 cm	1.34 cm	1.37 cm	1.40 cm	1.43 cm	1.46 cm	1.50 cm	1.53 cm	1.56 cm	1.59 cm	1.62 cm	1.66 cm	1.69 cm	1.72 cm	1.75 cm	1.78 cm	1.82 cm	1.85 cm	1.88 cm	1.91 cm	1.94 cm	1.97 cm	2.01 cm	2.04 cm	2.07 cm	2.1 cm	2.13 cm	2.17 cm	2.2 cm	2.23 cm	2.26 cm	2.29 cm	2.32 cm	2.35 cm	2.39 cm	2.42 cm

Prada size	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31	32	33	34	35	36
United States	1	2	2 1/2	3	3 1/4	3 3/4	4 1/4	4 1/2	5	5 1/4	6	6 1/4	6 3/4	7	7 1/4	7 1/2	8	8 1/2	8 3/4	9	9 3/4	10	10 1/2	10 3/4	11	11 3/4	12	12 1/2	12 3/4	13	13 1/2	13 3/4	14	14 1/2	15	15 1/2
Diameter	0.51 in	0.53 in	0.54 in	0.55 in	0.56 in	0.57 in	0.59 in	0.6 in	0.61 in	0.63 in	0.64 in	0.65 in	0.66 in	0.68 in	0.69 in	0.7 in	0.71 in	0.73 in	0.74 in	0.75 in	0.76 in	0.78 in	0.79 in	0.8 in	0.81 in	0.83 in	0.84 in	0.85 in	0.87 in	0.88 in	0.89 in	0.9 in	0.91 in	0.93 in	0.94 in	0.95 in

Prada size	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31	32	33	34	35	36
United Kingdom	B	D	E	F	F1/2	H	I	I 1/2	J 1/2	K	L 1/2	M	N	O	O 1/2	P	Q	R	R 1/2	S	T	T 1/2	U 1/2	V 1/2	W	X	Y	Z	-	-	-	-	-	-	-	-
Diameter	1.30 cm	1.34 cm	1.37 cm	1.40 cm	1.43 cm	1.46 cm	1.50 cm	1.53 cm	1.56 cm	1.59 cm	1.62 cm	1.66 cm	1.69 cm	1.72 cm	1.75 cm	1.78 cm	1.82 cm	1.85 cm	1.88 cm	1.91 cm	1.94 cm	1.97 cm	2.01 cm	2.04 cm	2.07 cm	2.1 cm	2.13 cm	2.17 cm	2.2 cm	2.23 cm	2.26 cm	2.29 cm	2.32 cm	2.35 cm	2.39 cm	2.42 cm

Prada size	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31	32	33	34	35	36
United Kingdom	B	D	E	F	F1/2	H	I	I 1/2	J 1/2	K	L 1/2	M	N	O	O 1/2	P	Q	R	R 1/2	S	T	T 1/2	U 1/2	V 1/2	W	X	Y	Z	-	-	-	-	-	-	-	-
Diameter	0.51 in	0.53 in	0.54 in	0.55 in	0.56 in	0.57 in	0.59 in	0.6 in	0.61 in	0.63 in	0.64 in	0.65 in	0.66 in	0.68 in	0.69 in	0.7 in	0.71 in	0.73 in	0.74 in	0.75 in	0.76 in	0.78 in	0.79 in	0.8 in	0.81 in	0.83 in	0.84 in	0.85 in	0.87 in	0.88 in	0.89 in	0.9 in	0.91 in	0.93 in	0.94 in	0.95 in

Prada size	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31	32	33	34	35	36
France	41	42	43	44	45	46	47	48	49	50	51	52	53	54	55	56	57	58	59	60	61	62	63	64	65	66	67	68	69	70	71	72	73	74	75	76
Diameter	1.30 cm	1.34 cm	1.37 cm	1.40 cm	1.43 cm	1.46 cm	1.50 cm	1.53 cm	1.56 cm	1.59 cm	1.62 cm	1.66 cm	1.69 cm	1.72 cm	1.75 cm	1.78 cm	1.82 cm	1.85 cm	1.88 cm	1.91 cm	1.94 cm	1.97 cm	2.01 cm	2.04 cm	2.07 cm	2.1 cm	2.13 cm	2.17 cm	2.2 cm	2.23 cm	2.26 cm	2.29 cm	2.32 cm	2.35 cm	2.39 cm	2.42 cm

Prada size	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31	32	33	34	35	36
Germany	13	13.4	13.7	14	14.3	14.6	15	15.3	15.6	15.9	16.3	16.5	16.8	17.2	17.5	17.8	18.1	18.4	18.8	19.1	19.4	19.7	20	20.3	20.6	21	21.3	21.6	22	22.3	22.6	22.9	23.2	23.5	23.9	24.2
Diameter	1.30 cm	1.34 cm	1.37 cm	1.40 cm	1.43 cm	1.46 cm	1.50 cm	1.53 cm	1.56 cm	1.59 cm	1.62 cm	1.66 cm	1.69 cm	1.72 cm	1.75 cm	1.78 cm	1.82 cm	1.85 cm	1.88 cm	1.91 cm	1.94 cm	1.97 cm	2.01 cm	2.04 cm	2.07 cm	2.1 cm	2.13 cm	2.17 cm	2.2 cm	2.23 cm	2.26 cm	2.29 cm	2.32 cm	2.35 cm	2.39 cm	2.42 cm

Prada size	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31	32	33	34	35	36
Germany	13	13.4	13.7	14	14.3	14.6	15	15.3	15.6	15.9	16.3	16.5	16.8	17.2	17.5	17.8	18.1	18.4	18.8	19.1	19.4	19.7	20	20.3	20.6	21	21.3	21.6	22	22.3	22.6	22.9	23.2	23.5	23.9	24.2
Diameter	0.51 in	0.53 in	0.54 in	0.55 in	0.56 in	0.57 in	0.59 in	0.6 in	0.61 in	0.63 in	0.64 in	0.65 in	0.66 in	0.68 in	0.69 in	0.7 in	0.71 in	0.73 in	0.74 in	0.75 in	0.76 in	0.78 in	0.79 in	0.8 in	0.81 in	0.83 in	0.84 in	0.85 in	0.87 in	0.88 in	0.89 in	0.9 in	0.91 in	0.93 in	0.94 in	0.95 in

Prada size	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31	32	33	34	35	36
Brazil	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31	32	33	34	35	36
Diameter	1.30 cm	1.34 cm	1.37 cm	1.40 cm	1.43 cm	1.46 cm	1.50 cm	1.53 cm	1.56 cm	1.59 cm	1.62 cm	1.66 cm	1.69 cm	1.72 cm	1.75 cm	1.78 cm	1.82 cm	1.85 cm	1.88 cm	1.91 cm	1.94 cm	1.97 cm	2.01 cm	2.04 cm	2.07 cm	2.1 cm	2.13 cm	2.17 cm	2.2 cm	2.23 cm	2.26 cm	2.29 cm	2.32 cm	2.35 cm	2.39 cm	2.42 cm

Prada size	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31	32	33	34	35	36
Brazil	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31	32	33	34	35	36
Diameter	0.51 in	0.53 in	0.54 in	0.55 in	0.56 in	0.57 in	0.59 in	0.6 in	0.61 in	0.63 in	0.64 in	0.65 in	0.66 in	0.68 in	0.69 in	0.7 in	0.71 in	0.73 in	0.74 in	0.75 in	0.76 in	0.78 in	0.79 in	0.8 in	0.81 in	0.83 in	0.84 in	0.85 in	0.87 in	0.88 in	0.89 in	0.9 in	0.91 in	0.93 in	0.94 in	0.95 in

Prada size	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31	32	33	34	35	36
Japan	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31	32	33	34	35	36
Diameter	1.30 cm	1.34 cm	1.37 cm	1.40 cm	1.43 cm	1.46 cm	1.50 cm	1.53 cm	1.56 cm	1.59 cm	1.62 cm	1.66 cm	1.69 cm	1.72 cm	1.75 cm	1.78 cm	1.82 cm	1.85 cm	1.88 cm	1.91 cm	1.94 cm	1.97 cm	2.01 cm	2.04 cm	2.07 cm	2.1 cm	2.13 cm	2.17 cm	2.2 cm	2.23 cm	2.26 cm	2.29 cm	2.32 cm	2.35 cm	2.39 cm	2.42 cm

Prada size	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31	32	33	34	35	36
Japan	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31	32	33	34	35	36
Diameter	0.51 in	0.53 in	0.54 in	0.55 in	0.56 in	0.57 in	0.59 in	0.6 in	0.61 in	0.63 in	0.64 in	0.65 in	0.66 in	0.68 in	0.69 in	0.7 in	0.71 in	0.73 in	0.74 in	0.75 in	0.76 in	0.78 in	0.79 in	0.8 in	0.81 in	0.83 in	0.84 in	0.85 in	0.87 in	0.88 in	0.89 in	0.9 in	0.91 in	0.93 in	0.94 in	0.95 in

Prada size	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31	32	33	34	35	36
China	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31	32	33	34	35	36
Diameter	1.30 cm	1.34 cm	1.37 cm	1.40 cm	1.43 cm	1.46 cm	1.50 cm	1.53 cm	1.56 cm	1.59 cm	1.62 cm	1.66 cm	1.69 cm	1.72 cm	1.75 cm	1.78 cm	1.82 cm	1.85 cm	1.88 cm	1.91 cm	1.94 cm	1.97 cm	2.01 cm	2.04 cm	2.07 cm	2.1 cm	2.13 cm	2.17 cm	2.2 cm	2.23 cm	2.26 cm	2.29 cm	2.32 cm	2.35 cm	2.39 cm	2.42 cm

Prada size	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31	32	33	34	35	36
China	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31	32	33	34	35	36
Diameter	0.51 in	0.53 in	0.54 in	0.55 in	0.56 in	0.57 in	0.59 in	0.6 in	0.61 in	0.63 in	0.64 in	0.65 in	0.66 in	0.68 in	0.69 in	0.7 in	0.71 in	0.73 in	0.74 in	0.75 in	0.76 in	0.78 in	0.79 in	0.8 in	0.81 in	0.83 in	0.84 in	0.85 in	0.87 in	0.88 in	0.89 in	0.9 in	0.91 in	0.93 in	0.94 in	0.95 in

Measurements refer to the diameter.

Measurements guide

Choose a ring that perfectly fits the finger on which you intend to wear the new ring.
Measure the inner diameter of the ring in centimeters (cm).
Use the conversion table to compare the size of your ring with the Prada ring size. If undecided between two sizes, it is advisable to choose the larger one.

DOWNLOAD THE GUIDE IN PDF

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Posts & Pages

1090 - It all started with a chain.

I'm Jack, co-founder of 1090.

It all started with a chain back in 2021 when our co-founder Thomas, who’s been making jewellery for over a decade, designed me a custom handcuff necklace. I’ve worn it every day since.

That piece lit the spark. After years of wearing it, we joined forces to make this chain available to you, launching 1090 together with the exact piece that started it all.

1090 isn’t about trends or playing safe. It’s about rebellion, freedom, and unapologetic self-expression. Every piece is a reminder to break the rules and live on your own terms.

Promotional image

Materials

Crafted in stainless steel 316L, sealed in platinum white or 14k gold, every piece is made to endure. It won’t tarnish, it won’t fade, and it’s safe for sensitive skin. Strong yet refined, it’s built for daily wear... with a lifetime guarantee to back it up.

Promotional image