Tanzanite – Chalfen of London

Tanzanite is a trichoic stone that reflects different colors, ranging from light blues or lilacs to deep indigos and violets. It was discovered in the 1960s and named after Tanzania by Tiffany & Co. The famous jewelry firm declared it to be the most beautiful stone discovered in the last 2,000 years.

Showing all 6 results

Oval Tanzanite and Aqua Three Stone Ring
£3,194.00 Select options This product has multiple variants. The options may be chosen on the product page
Pear Shape Tanzanite and Diamond Pendant
£3,512.00 Select options This product has multiple variants. The options may be chosen on the product page
Tanzanite and Diamond Dress Ring
£5,220.00 Select options This product has multiple variants. The options may be chosen on the product page
Tanzanite and Diamond Ring
£902.00 Select options This product has multiple variants. The options may be chosen on the product page
Tanzanite and Diamond Ring 18ct
£1,043.00 Select options This product has multiple variants. The options may be chosen on the product page
Tanzanite and Diamond Solitaire Ring
£1,900.00 Select options This product has multiple variants. The options may be chosen on the product page

Ring Dia ⌀ (Inside)		Ring Circumference (Inside)		‹ International Standard Sizes ›
MM	Inches	MM	Inches	UK / AU	USA / CA	Europe
9.9	0.390	31.1	1.22	·	0000	·
10.7	0.442	33.7	1.39	·	00	·
11.5	0.454	36.2	1.43	·	0	·
12.0	0.470	37.5	1.50	A	1/2	·
12.2	0.479	38.3	1.51	A 1/2	3/4	·
12.4	0.487	38.9	1.53	B	1	·
12.6	0.506	39.6	1.56	B 1/2	1 1/4	·
12.8	0.503	40.2	1.58	C	1 1/2	·
13.0	0.511	40.8	1.61	C 1/2	1 3/4	·
13.2	0.520	41.5	1.63	D	2	41 1/2
13.4	0.528	42.1	1.66	D 1/2	2 1/4	·
13.6	0.536	42.8	1.68	E	2 1/2	42 3/4
13.8	0.544	43.5	1.71	E 1/2	2 3/4	·
14.0	0.553	44.1	1.74	F	3	44
14.2	0.557	44.5	1.75	F 1/2	3 1/8	·
14.3	0.561	44.8	1.76	F 3/4	3 1/4	·
14.4	0.565	45.1	1.77	G	3 3/8	45 1/4
14.5	0.568	45.4	1.79	G 1/4	3 1/2	·
14.6	0.573	45.7	1.80	G 1/2	3 5/8	·
14.7	0.576	46.0	1.81	H	3 3/4	46 1/2
14.9	0.585	46.7	1.84	H 1/2	4	·
15.0	0.592	47.3	1.86	I	4 1/4	47 3/4
15.3	0.601	48.0	1.89	I 1/2	4 1/2	·
15.4	0.606	48.4	1.90	J	4 5/8	50
15.5	0.611	48.8	1.92	J 1/4	4 3/4	·
15.7	0.618	50.3	1.94	J 1/2	5	·
15.8	0.622	50.6	1.95	K	5 1/8	50
15.9	0.625	50.0	1.97	K 1/4	5 1/4	·
16.0	0.630	50.3	1.98	K 1/2	5 3/8	·
16.1	0.634	50.6	1.99	L	5 1/2	51 3/4
16.3	0.642	51.2	2.02	L 1/4	5 3/4	·
16.4	0.646	51.6	2.03	L 1/2	5 7/8	·
16.5	0.650	51.9	2.04	M	6	52 3/4
16.7	0.658	52.5	2.07	M 1/2	6 1/4	·
16.9	0.666	53.2	2.09	N	6 1/2	54
17.1	0.674	53.8	2.12	N 1/2	6 3/4	·
17.4	0.683	54.5	2.15	O	7	55 1/4
17.5	0.687	54.8	2.16	O 1/2	7 1/4	·
17.8	0.698	55.8	2.20	P	7 1/2	56 1/2
18.0	0.707	56.5	2.22	P 1/2	7 3/4	·
18.2	0.716	57.1	2.25	Q	8	57 3/4
18.4	0.722	57.7	2.27	Q 1/2	8 1/4	·
18.5	0.729	58.2	2.29	Q 3/4	8 1/2	·
18.6	0.733	58.5	2.30	R	8 5/8	59
18.7	0.736	58.7	2.31	R 1/4	8 3/4	·
18.8	0.740	59.1	2.32	R 1/2	8 7/8	·
18.9	0.743	59.3	2.35	R 3/4	9	·
19.1	0.752	60.0	2.36	S	9 1/8	60 1/4
19.2	0.757	60.4	2.38	S 1/4	9 1/4	·
19.3	0.760	60.7	2.39	S 1/2	9 3/8	·
19.4	0.764	61.0	2.40	S 3/4	9 1/2	·
19.5	0.768	61.3	2.41	T	9 5/8	61 1/2
19.6	0.772	61.6	2.43	T 1/4	9 3/4	·
19.8	0.781	62.3	2.45	T 1/2	10	·
20.0	0.780	62.9	2.48	U	10 1/4	62 3/4
20.2	0.795	63.5	2.50	U 1/2	10 1/2	·
20.3	0.800	63.8	2.51	V	10 5/8	63
20.4	0.805	64.2	2.53	V 1/4	10 3/4	·
20.7	0.814	65.0	2.56	V 1/2	11	·
20.8	0.817	65.2	2.57	W	11 1/8	65
20.9	0.821	65.5	2.58	W 1/4	11 1/4	·
20.9	0.824	65.8	2.59	W 1/2	11 3/8	·
21.0	0.830	66.2	2.61	W 3/4	11 1/2	·
21.2	0.834	66.5	2.62	X	11 5/8	66 1/4
21.2	0.836	66.7	2.63	X 1/4	11 3/4	·
21.3	0.838	66.9	2.64	X 1/2	11 7/8	·
21.5	0.846	67.5	2.66	Y	12	67 1/2
21.7	0.854	68.1	2.68	Y 1/2	12 1/4	·
21.9	0.861	68.8	2.71	Z	12 1/2	68 3/4
22.1	0.870	69.4	2.73	Z +1/2	12 3/4	·
22.3	0.879	70.2	2.76	Z+1	13	·
22.6	0.890	71.0	2.80	Z+1.5	13.5	·
22.7	0.893	71.3	2.81	Z+2	·	·
22.9	0.902	72.0	2.83	Z+2.5	·	·
23.0	0.908	72.5	2.85	Z+3	·	·
23.3	0.915	73.0	2.87	Z+3.5	·	·
23.5	0.924	73.7	2.90	Z+4	·	·
23.6	0.927	74.0	2.91	Z+4.5	·	·
23.9	0.940	75.0	2.95	Z+5	·	·
24.3	0.955	76.2	3.00	Z+6	·	·

Oval Tanzanite and Aqua Three Stone Ring

Pear Shape Tanzanite and Diamond Pendant

Tanzanite and Diamond Dress Ring

Tanzanite and Diamond Ring

Tanzanite and Diamond Ring 18ct

Tanzanite and Diamond Solitaire Ring