Allegra Blue Sapphire Ring Allegra Blue Sapphire Ring Allegra Blue Sapphire Ring Allegra Blue Sapphire Ring
Allegra Blue Sapphire Ring Allegra Blue Sapphire Ring Allegra Blue Sapphire Ring Allegra Blue Sapphire Ring

Allegra Blue Sapphire Ring

Allegra uses bold geometric shapes to evoke the visual drama of the Art Deco period. The ring features two pear shape Sapphires claw set at the end of a pair of opposing arms. Inlaid in each arm is a pear shape white diamond that is surrounded by a row of pavé diamonds.

Handcrafted in 18ct white gold.

Gemstone Details:

2 pear shape vibrant blue Sapphires totalling 3.3 carats
2 pear shape diamonds totalling 0.6 carats
12 brilliant cut diamonds totalling 0.36 carats


Reference: R38852

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Allegra uses bold geometric shapes to evoke the visual drama of the Art Deco period. The ring features two pear shape Sapphires claw set at the end of a pair of opposing arms. Inlaid in each arm is a pear shape white diamond that is surrounded by a row of pavé diamonds.

Handcrafted in 18ct white gold.

Gemstone Details:

2 pear shape vibrant blue Sapphires totalling 3.3 carats
2 pear shape diamonds totalling 0.6 carats
12 brilliant cut diamonds totalling 0.36 carats


Reference: R38852

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Allegra Blue Sapphire Ring

Measuring a Ring

First, you need to find an existing ring that fits the desired finger. Then, measure the internal diameter of the ring (in mm) and use the chart below to find the your ring size.

Diameter (mm) Circuference (mm) Aus/UK US/Canada
14.05 44.14 F 3
14.15 44.45 F 1/2 3 1/8
14.25 44.77 F 3/4 3 1/4
14.36 45.11 G 3 3/8
14.45 45.40 G 1/4 3 1/2
14.56 45.74 G 1/2 3 5/8
14.65 46.02 H 3 3/4
14.86 46.68 H 1/2 4
15.04 47.25 I 4 1/4
15.27 47.97 I 1/2 4 1/2
15.40 48.38 J 4 5/8
15.53 48.79 J 1/4 4 3/4
15.70 49.32 J 1/2 5
15.80 49.64 K 5 1/8
15.90 49.95 K 1/4 5 1/4
16.00 50.27 K 1/2 5 3/8
16.10 50.58 L 5 1/2
16.30 51.21 L 1/4 5 3/4
16.41 51.55 L 1/2 5 7/8
16.51 51.87 M 6
16.71 52.50 M 1/2 6 1/4
16.92 53.16 N 6 1/2
17.13 53.82 N 1/2 6 3/4
17.35 54.51 O 7
17.45 54.82 O 1/2 7 1/4
17.75 55.76 P 7 1/2
17.97 56.45 P 1/2 7 3/4
18.19 57.15 Q 8
18.35 57.65 Q 1/2 8 1/4
18.53 58.21 Q 3/4 8 1/2
18.61 58.47 R 8 5/8
18.69 58.72 R 1/4 8 3/4
18.80 59.06 R 1/2 8 7/8
18.89 59.34 R 3/4 9
19.10 60.00 S 9 1/8
19.22 60.38 S 1/4 9 1/4
19.31 60.66 S 1/2 9 3/8
19.41 60.98 S 3/4 9 1/2
19.51 61.29 T 9 5/8
19.62 61.64 T 1/4 9 3/4
19.84 62.33 T 1/2 10
20.02 62.89 U 10 1/4
20.20 63.46 U 1/2 10 1/2
20.32 63.84 V 10 5/8
20.44 64.21 V 1/4 10 3/4
20.68 64.97 V 1/2 11
20.76 65.22 W 11 1/8
20.85 65.50 W 1/4 11 1/4
20.94 65.78 W 1/2 11 3/8
21.08 66.22 W 3/4 11 1/2
21.18 66.54 X 11 5/8
21.24 66.73 X 1/4 11 3/4
21.30 66.92 X 1/2 11 7/8
21.49 67.51 Y 12
21.69 68.14 Y 1/2 12 1/4
21.89 68.77 Z 12 1/2
22.10 69.43 Z +1/2 12 3/4
22.33 70.15 Z+1 13
22.60 71.00 Z+1.5 13.5
Allegra Blue Sapphire Ring

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