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Tank coral diamond ring 

Sale price€2.200,00

Tank coral diamond ring in 18 karat (750) white gold and platinum. The ring is centred on an orange coral pearl surrounded by two rolls of gold and framed by two lines of eight rose-cut diamonds (sixteen in all). The jewellery features the geometric lines typical of tank jewellery. Tank ring, circa 1940.

Hallmarked owl and mascaron

Finger size: 55 EU or 7.25 US (sizing possible)

Ring head dimensions: 12 x 20 mm
Pearl diameter: 8 mm

Estimated diamond weight: 0.10 carat

Condition : scratches from use

Weight : 9.26 gr

Gemological point: Coral is a gem of organic origin. Only the branched calcareous trunks of certain corals are used in jewellery. Its colour is due to organic pigments close to carotene: varying from blood red to white, passing by the pink “angel skin”. Currently, most coral species are protected under CITES, the Convention on International Trade in Endangered Species of Wild Fauna and Flora.

Crédits photographiques : Ines Tano

Size (FR)

55

Size (US)

7.25

Karats

18

See size chart

Ø (mm)

FR

US

CH-ES-IT

UK

DE

14

Ø (mm)

44

FR

3

US

4

CH-ES-IT

F

UK

14

DE

14.3

Ø (mm)

45

FR

3.5

US

5

CH-ES-IT

G

UK

14 1/2

DE

14.7

Ø (mm)

46

FR

3.75

US

6

CH-ES-IT

H

UK

15

DE

15

Ø (mm)

47

FR

4

US

7

CH-ES-IT

H 1/2

UK

15 1/4

DE

15.3

Ø (mm)

48

FR

4.5

US

8

CH-ES-IT

I

UK

15 1/2

DE

15.6

Ø (mm)

49

FR

5

US

9

CH-ES-IT

J 1/2

UK

15 3/4

DE

15.9

Ø (mm)

50

FR

5.25

US

10

CH-ES-IT

K 1/2

UK

16 1/4

DE

16.2

Ø (mm)

51

FR

5.50

US

11

CH-ES-IT

L

UK

16 1/4

DE

16.5

Ø (mm)

52

FR

6

US

12

CH-ES-IT

M

UK

16 3/4

DE

16.8

Ø (mm)

53

FR

6.5

US

13

CH-ES-IT

N

UK

17

DE

17.2

Ø (mm)

54

FR

6.75

US

14

CH-ES-IT

O

UK

17 1/4

DE

17.5

Ø (mm)

55

FR

7

US

15

CH-ES-IT

P

UK

17 3/4

DE

17.8

Ø (mm)

56

FR

7.5

US

16

CH-ES-IT

P 1/2

UK

18

DE

18.1

Ø (mm)

57

FR

8

US

17

CH-ES-IT

Q

UK

18 1/4

DE

18.4

Ø (mm)

58

FR

8.25

US

18

CH-ES-IT

R

UK

18 1/2

DE

18.8

Ø (mm)

59

FR

8.75

US

19

CH-ES-IT

S

UK

19

DE

19.1

Ø (mm)

60

FR

9

US

20

CH-ES-IT

S 1/2

UK

19 1/4

DE

19.4

Ø (mm)

61

FR

9.5

US

21

CH-ES-IT

T

UK

19 1/2

DE

19.7

Ø (mm)

62

FR

10

US

22

CH-ES-IT

T 1/2

UK

20 1/4

DE

20

Ø (mm)

63

FR

10.25

US

23

CH-ES-IT

U 1/2

UK

20 1/2

DE

20.3

Ø (mm)

64

FR

10.75

US

24

CH-ES-IT

V 1/2

UK

20 3/4

DE

20.6

Ø (mm)

65

FR

11

US

25

CH-ES-IT

W 1/2

UK

21

DE

21

Ø (mm)

67

FR

11.75

US

27

CH-ES-IT

Y

UK

21 3/4

DE

21.3

Ø (mm)

67

FR

11.75

US

27

CH-ES-IT

Y

UK

21 3/4

DE

21.6

Ø (mm)

68

FR

12.25

US

28

CH-ES-IT

Z

UK

21 3/4

DE

22

Ø (mm)

69

FR

12.5

US

29

CH-ES-IT

Z+1

UK

22

DE

SKU: 977
bague diamants tank en or et platine
Tank coral diamond ring  Sale price€2.200,00

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