Sapphire and diamond coronet cluster ring, English, circa 1920.1

Sapphire and diamond coronet cluster ring, English, circa 1920.2

Sapphire and diamond coronet cluster ring, English, circa 1920.3

Sapphire and diamond coronet cluster ring, English, circa 1920.

Platinum, Diamond, Sapphire

£7,400

and coronet ring. Set centrally with a oval unenhanced sapphire in an setting with an approximate weight of 0.60 , bordered by seventeen round old cut in open back settings with a combined approximate weight of 0.50 carats, to an oval openwork design with an intricately pierced , open backholing and elaborate trumpeting which lead through to a . , English, 1920, accompanied by Gemmological Certification Services (GCS) 5784-3689.

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Reference Number 23426

Origin England

Ring size: M

Size Guide

The majority of items can be re-sized free of charge.

Period 1920's

TOTAL / RING Weight 3.6 grams

Metal Platinum

Gemstone Basaltic Unheated Sapphire, Old Cut, approximately 0.6ct 17 x Diamonds, Old Cut, approximately 0.5ct total

Condition

The ring is in excellent condition.

Chairman's Notes

Sapphire is from Basaltic deposit.

Delivery & Returns

Inside diameter (mm)	USA	UK	China India	European
11.63	0
11.84	¼
12.04	½	A
12.24	¾	A½
12.45	1	B	1
12.65	1¼	B½
12.85	1½	C
13.06	1¾	C½		41
13.26	2	D	2	42
13.46	2¼	D½
13.67	2½	E	3	43
13.87	2¾	E½
14.07	3	F	4	44
14.27	3¼	F½	5	45
14.48	3½	G
14.68	3¾	G½	6	46
		H		47
14.88	4	H½	7
15.09	4¼	I		48
15.29	4½	I½	8
15.49	4¾	J		49
15.7	5	J½	9	50
15.9	5¼	K		51
16.1	5½	K½	10
16.31	5¾	L		52
16.51	6	L½	11
16.71	6¼	M	12	53
16.92	6½	M½	13
17.12	6¾	N		54
17.32	7	O	14	55
17.53	7¼	O½		56
17.73	7½	P	15
17.93	7¾	P½		57
18.14	8	Q	16
18.34	8¼	Q½		58
18.54	8½	R	17	59
18.75	8¾	R½
18.95	9	S	18	60
19.15	9¼
19.35	9½	S½	19	61
19.56	9¾	T
19.76	10	T½	20	62
19.96	10¼	U	21
20.17	10½	U½	22	63
20.37	10¾	V		64
20.57	11	V½	23
20.78	11¼	W		65
20.98	11½	W½	24
21.18	11¾	X		66
21.39	12	Y	25	67
21.59	12¼	Y½		68
21.79	12½	Z	26
22	12¾	Z½		69
22.2	13		27
22.4	13¼
22.61	13½
22.81	13¾
23.01	14
23.22	14¼
23.42	14½
23.62	14¾
23.83	15
24.03	15¼
24.23	15½
24.43	15¾
24.64	16

Next day delivery Tuesday to Saturday before 1pm – order by 4:30pm	Complimentary
Nominated day delivery Tuesday to Saturday	Complimentary
Same Day Delivery within London Monday to Saturday – order by 3:30pm	£100

USA 7-10 business days - complimentary fully insured shipping	Complimentary
Europe and Rest of World 7-10 business days - complimentary fully insured shipping	Complimentary

Sapphire and diamond coronet cluster ring, English, circa 1920.

Platinum, Diamond, Sapphire

£7,400

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