Art Deco star sapphire and diamond coronet cluster ring, American, circa 1930.1

Art Deco star sapphire and diamond coronet cluster ring, American, circa 1930.2

Art Deco star sapphire and diamond coronet cluster ring, American, circa 1930.

Platinum & Iridium, Diamond, Star Sapphire

£5,700

star and coronet ring. Set to centre with an oval no heat in an and setting with an approximate weight of 11.70 , encircled by a single row of eighteen round in open back settings with a combined approximate weight of 0.20 carats, flanked on the by two rectangular cut diamonds in open back rubover settings with a combined weight of 0.16 carats. The total approximate diamond weight is 0.36 carats, to an impressive cluster design featuring polished borders, a pierced with motifs, and open backholing, leading to slightly raised shoulders with further chenier detail which flow through to a tapering . and , 'MM' or 'WW', American, 1930.

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Reference Number 29550

Ring size: G

Size Guide

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

Period Art Deco

TOTAL / RING Weight 6.59 grams

Metal Platinum & Iridium

Gemstone Star Sapphire, Cabochon, approximately 11.7ct 18 x Diamonds, Eight Cut, approximately 0.2ct total 2 x Diamonds, Baguette Cut, approximately 0.16ct total

Condition

The ring is in good condition commensurate with its age.

Chairman's Notes

As is the case with all coloured stones, the colour is paramount, and the most important quality factor. In addition to this, the most valued star stones display strong and straight white rays, with a centred star that floats smoothly across the surface with the right light source. Only superior cutting, as exhibited with this piece, will release a gem’s beauty, with the finest star stones cut and polished as well-balanced cabochons.

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

Art Deco star sapphire and diamond coronet cluster ring, American, circa 1930.

Platinum & Iridium, Diamond, Star Sapphire

£5,700

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