Edwardian sapphire and diamond coronet cluster ring, circa 1910.1

Edwardian sapphire and diamond coronet cluster ring, circa 1910.2

Edwardian sapphire and diamond coronet cluster ring, circa 1910.3

Edwardian sapphire and diamond coronet cluster ring, circa 1910.4

Edwardian sapphire and diamond marquise cluster ring, circa 1910.

Yellow Gold & Platinum, Diamond, Sapphire

£13,000

and ring. Set to centre with a marquise shape unenhanced sapphire in an setting with an approximate weight of 2.80 , encircled by a single row of twenty-four round in open back grain settings with an approximate combined weight of 0.67 carats, further set to the , with two round old mine diamonds in open back grain settings with a combined weight of 0.08 carats. The total approximate diamond weight is 0.75 carats, to an elegant marquise cluster design featuring polished edges, an intricately pierced and open backholing, leading to smooth shoulders with scrolling motifs, flowing through to a solid . yellow with settings, 1910, accompanied by Gemmological Certification Services report #79234-49.

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Reference Number 20064

Ring size: L

Size Guide

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

Period Edwardian

Metal Yellow Gold & Platinum

Gemstone Basaltic Unheated Sapphire, Old Cut, approximately 2.8ct 24 x Diamonds, Old Mine, approximately 0.67ct total 2 x Diamonds, Old Mine, approximately 0.08ct total

Condition

The ring is in excellent condition.

Chairman's Notes

This sapphire has been assessed by Gemmological Certification Services as being basaltic in origin. This means it formed in or around volcanic basalt rock, crystallised in high-temperature environments associated with basalt lava flows and has higher iron content, which account for the more saturated blue colour. Basaltic sapphire deposits include Siam, Australia, and Southeast Asia amongst others.

The marquise shape is a soft oval with a stretched point at each end, although there can be a wide variety of proportions from almost ‘spiky’ thin marquises to ‘fat’ rounder shapes. Another name for the marquise cut is ‘navette’, French for ‘little boat’ as it echoes the smooth outline of a ship’s hull.

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

Edwardian sapphire and diamond marquise cluster ring, circa 1910.

Yellow Gold & Platinum, Diamond, Sapphire

£13,000

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