Diamond cluster ring by Kohn berganza hatton garden1

Diamond cluster ring by Kohn berganza hatton garden2

Diamond cluster ring by Kohn berganza hatton garden3

Diamond cluster ring by Kohn berganza hatton garden4

Diamond cluster ring by Kohn, American, circa 1915.

Platinum, Diamond

£5,950

ring by . Set to centre with a row of four round in settings, surrounded by twenty four round old cut diamonds in open back grain settings. The total approximate diamond weight is 1.20 , to an angular openwork cluster featuring borders, an intricately pierced and open backholing, leading to trumpeting with detail to the sides and flowing through to a ridged . , ., American, 1915.

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Reference Number 25452

Maker Kohn & Co

Ring size: L

Size Guide

Can be adjusted to any size.

Period 1910's

TOTAL / RING Weight 2.8 grams

Metal Platinum

Gemstone 28 x Diamonds, Old Cut, approximately 1.2ct total

Director's Notes

Kohn & Co was a jewellery manufacturing firm located in Newark, New Jersey during the first half of the twentieth century. This period was the heyday of American jewellery manufacturing, with Newark at its centre. Newark jewellers like Kohn manufactured under their own name, as well as produced jewellery for companies such as Tiffany & Co. To own a piece like this is to own a piece of American jewellery history.

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 cluster ring by Kohn, American, circa 1915.

Platinum, Diamond

£5,950

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