Colombian emerald and diamond coronet cluster, circa 1925.1

Colombian emerald and diamond coronet cluster, circa 1925.2

Colombian emerald and diamond coronet cluster, circa 1925.

Platinum, Diamond, Emerald

£13,200

and coronet . Set with an octagonal Colombian emerald with moderate oil in an setting with an approximate weight of 1.25 , further set with thirty round eight-cut in open back settings with a combined approximate weight of 0.30 carats, to a geometric design featuring edging, an ornately pierce with an interlocking chain motif and further millegrain detail, leading to raised with and scrollwork which flow through to a solid . , import mark for Vienna, 1925, accompanied by Gemmological Certification Services report #5786-0395.

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Reference Number 29534

Ring size: L½

Size Guide

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

Period Art Deco

TOTAL / RING Weight 3.35 grams

Metal Platinum

Gemstone Colombian Moderate Oil Emerald, Emerald Cut, approximately 1.25ct 30 x Diamonds, Eight Cut, approximately 0.3ct total

Chairman's Notes

The butterfly import mark was used in Austria between 1922 and 2001. Whilst the assay mark for Vienna 'W' has only been used since 1938, it is likely this ring was made elsewhere prior to this date.

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

Colombian emerald and diamond coronet cluster, circa 1925.

Platinum, Diamond, Emerald

£13,200

About the Gemstone

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