Diamond and ruby target ring, French, circa 1915.1

Diamond and ruby target ring, French, circa 1915.2

Diamond and ruby target ring, French, circa 1915.

Platinum, Diamond, Ruby

£11,500

and ring. Set with a shape diamond in an setting with an approximate weight of 1.00 , encircled by a single row of cut unenhanced in open back settings with a combined approximate weight of 0.72 carats, further set with six round in open back settings with a combined weight of 0.06 carats. The total approximate diamond weight is 1.08 carats, to a cushion shape target with polished edges, a finely pierced scrolling and fancy shape open backholing, flanked by raised which lead through to a solid . , numbered '2301', French, 1915.

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Reference Number 23720

Origin France

Ring size: R 1/2

Size Guide

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

Period Edwardian

TOTAL / RING Weight 3.1 grams

Metal Platinum

Gemstone Diamond, Old Mine, approximately 1ct 18 x Rubies, Calibre, approximately 0.72ct total 6 x Diamonds, Eight Cut, approximately 0.06ct total

Condition

The ring is in good condition.

Chairman's Notes

This ring has been assessed by our in-house gemmologists: The rubies are most likely to be from the old Burmese mines.

Calibre cut gemstones were worked into special shapes to fit into a specific area. Each gemstone would be fashioned so they sit right next to each other within a channel, with no metal in between visible from above. They would usually be held securely in place with a rubover or millegrain setting – a fine piece of secure metal bordering the stones. Calibré cut gems were usually faceted into small step-cuts or could also be polished to create tallow tops or miniature cabochons. To produce this technique on an often minute scale required incredibly skillful and precise fashioning.

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

Diamond and ruby target ring, French, circa 1915.

Platinum, Diamond, Ruby

£11,500

About the Gemstone

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