Rubies
Emeralds
Sapphires
Gemstones
+1-212-869-1165
contact us
Home
/
All Sapphire Rings

All Sapphire Rings

Browse hundreds of beautiful sapphire rings in blue, yellow, pink, padparadscha, and other unique colors. Whether you’re looking for a gift, a ring for everyday wear, or a sapphire engagement ring, you’ll find the perfect piece in our collection. Interested in creating a custom sapphire ring? Select a sapphire or search our ring settings to design your ring from start to finish.

Filters 
Color
Design style
Metal
Carat
Center Stone Shape
Color intensity
Enhancement
Price
Origin
Clarity
Cutting style
Certificate type
Availability
33387 results
Change view:
Sort by:
Select
Change view:
0.49 Ct. Blue Sapphire Ring, 18K White Gold 1
0.49 Ct. Blue Sapphire Ring, 18K White Gold 2
0.49 Ct. Blue Sapphire Ring, 18K White Gold 3
0.49 Ct. Blue Sapphire Ring, 18K White Gold 4
0.49 Ct. Sapphire 18K White Gold ring
Item ID: 94001
$1,758
View Details
1.32 Ct. Bluish Green Sapphire Ring, 18K White Gold 1
1.32 Ct. Bluish Green Sapphire Ring, 18K White Gold 2
1.32 Ct. Bluish Green Sapphire Ring, 18K White Gold 3
1.32 Ct. Bluish Green Sapphire Ring, 18K White Gold 4
1.32 Ct. Sapphire 18K White Gold ring
Item ID: 152736
$2,651
View Details
1.30 Ct. Pinkish Purple Sapphire Ring, 18K White Gold 1
1.30 Ct. Pinkish Purple Sapphire Ring, 18K White Gold 2
1.30 Ct. Pinkish Purple Sapphire Ring, 18K White Gold 3
1.30 Ct. Pinkish Purple Sapphire Ring, 18K White Gold 4
1.30 Ct. Sapphire 18K White Gold ring
Item ID: 134038
$4,323
View Details
0.90 Ct. Bluish Green Sapphire Ring, 18K White Gold 1
0.90 Ct. Bluish Green Sapphire Ring, 18K White Gold 2
0.90 Ct. Bluish Green Sapphire Ring, 18K White Gold 3
0.90 Ct. Bluish Green Sapphire Ring, 18K White Gold 4
0.90 Ct. Sapphire 18K White Gold ring
Item ID: 208937
$3,032
View Details
10.48 Ct. Yellow Sapphire Ring, 18K White Gold 1
10.48 Ct. Yellow Sapphire Ring, 18K White Gold 2
10.48 Ct. Yellow Sapphire Ring, 18K White Gold 3
10.48 Ct. Yellow Sapphire Ring, 18K White Gold 4
10.48 Ct. Sapphire 18K White Gold ring
Item ID: 132781
$21,669
View Details
1.41 Ct. Blue Sapphire Ring, 18K White Gold 1
1.41 Ct. Blue Sapphire Ring, 18K White Gold 2
1.41 Ct. Blue Sapphire Ring, 18K White Gold 3
1.41 Ct. Blue Sapphire Ring, 18K White Gold 4
1.41 Ct. Sapphire 18K White Gold ring
Item ID: 179479
$2,722
View Details
0.54 Ct. Blue Sapphire Ring, 18K White Gold 1
0.54 Ct. Blue Sapphire Ring, 18K White Gold 2
0.54 Ct. Blue Sapphire Ring, 18K White Gold 3
0.54 Ct. Blue Sapphire Ring, 18K White Gold 4
0.54 Ct. Sapphire 18K White Gold ring
Item ID: 132572
$1,698
View Details
3.16 Ct. Blue Sapphire Ring, 18K White Gold 1
3.16 Ct. Blue Sapphire Ring, 18K White Gold 2
3.16 Ct. Blue Sapphire Ring, 18K White Gold 3
3.16 Ct. Blue Sapphire Ring, 18K White Gold 4
3.16 Ct. Sapphire 18K White Gold ring
Item ID: 120276
$13,137
View Details
0.98 Ct. Purple Sapphire Ring, 18K White Gold 1
0.98 Ct. Purple Sapphire Ring, 18K White Gold 2
0.98 Ct. Purple Sapphire Ring, 18K White Gold 3
0.98 Ct. Purple Sapphire Ring, 18K White Gold 4
0.98 Ct. Sapphire 18K White Gold ring
Item ID: 132545
$3,112
View Details
1.54 Ct. White Sapphire Ring, 18K White Gold 1
1.54 Ct. White Sapphire Ring, 18K White Gold 2
1.54 Ct. White Sapphire Ring, 18K White Gold 3
1.54 Ct. White Sapphire Ring, 18K White Gold 4
1.54 Ct. Sapphire 18K White Gold ring
Item ID: 189063
$3,280
View Details
2.65 Ct. Yellow Sapphire Ring, 18K White Gold 1
2.65 Ct. Yellow Sapphire Ring, 18K White Gold 2
2.65 Ct. Yellow Sapphire Ring, 18K White Gold 3
2.65 Ct. Yellow Sapphire Ring, 18K White Gold 4
2.65 Ct. Sapphire 18K White Gold ring
Item ID: 96043
$3,632
View Details
1.60 Ct. Green Sapphire Ring, 18K White Gold 1
1.60 Ct. Green Sapphire Ring, 18K White Gold 2
1.60 Ct. Green Sapphire Ring, 18K White Gold 3
1.60 Ct. Green Sapphire Ring, 18K White Gold 4
1.60 Ct. Sapphire 18K White Gold ring
Item ID: 189437
$3,115
View Details
1.67 Ct. Blue Sapphire Ring, 18K White Gold 1
1.67 Ct. Blue Sapphire Ring, 18K White Gold 2
1.67 Ct. Blue Sapphire Ring, 18K White Gold 3
1.67 Ct. Blue Sapphire Ring, 18K White Gold 4
1.67 Ct. Sapphire 18K White Gold ring
Item ID: 134958
$8,841
View Details
0.85 Ct. Brown Sapphire Ring, 18K White Gold 1
0.85 Ct. Brown Sapphire Ring, 18K White Gold 2
0.85 Ct. Brown Sapphire Ring, 18K White Gold 3
0.85 Ct. Brown Sapphire Ring, 18K White Gold 4
0.85 Ct. Sapphire 18K White Gold ring
Item ID: 184668
$2,540
View Details
1.04 Ct. Reddish Pink Sapphire Ring, 18K White Gold 1
1.04 Ct. Reddish Pink Sapphire Ring, 18K White Gold 2
1.04 Ct. Reddish Pink Sapphire Ring, 18K White Gold 3
1.04 Ct. Reddish Pink Sapphire Ring, 18K White Gold 4
1.04 Ct. Sapphire 18K White Gold ring
Item ID: 203976
$2,242
View Details
3.80 Ct. Blue Sapphire Ring, 18K White Gold 1
3.80 Ct. Blue Sapphire Ring, 18K White Gold 2
3.80 Ct. Blue Sapphire Ring, 18K White Gold 3
3.80 Ct. Blue Sapphire Ring, 18K White Gold 4
3.80 Ct. Sapphire 18K White Gold ring
Item ID: 176087
$8,053
View Details
1.12 Ct. Green Sapphire Ring, 18K White Gold 1
1.12 Ct. Green Sapphire Ring, 18K White Gold 2
1.12 Ct. Green Sapphire Ring, 18K White Gold 3
1.12 Ct. Green Sapphire Ring, 18K White Gold 4
1.12 Ct. Sapphire 18K White Gold ring
Item ID: 154517
$3,872
View Details
0.96 Ct. Bluish Green Sapphire Ring, 18K White Gold 1
0.96 Ct. Bluish Green Sapphire Ring, 18K White Gold 2
0.96 Ct. Bluish Green Sapphire Ring, 18K White Gold 3
0.96 Ct. Bluish Green Sapphire Ring, 18K White Gold 4
0.96 Ct. Sapphire 18K White Gold ring
Item ID: 139464
$3,423
View Details
2.77 Ct. Pinkish Brown Sapphire Ring, 18K White Gold 1
2.77 Ct. Pinkish Brown Sapphire Ring, 18K White Gold 2
2.77 Ct. Pinkish Brown Sapphire Ring, 18K White Gold 3
2.77 Ct. Pinkish Brown Sapphire Ring, 18K White Gold 4
2.77 Ct. Sapphire 18K White Gold ring
Item ID: 135035
$4,710
View Details
1.09 Ct. Blue Sapphire Ring, 18K White Gold 1
1.09 Ct. Blue Sapphire Ring, 18K White Gold 2
1.09 Ct. Blue Sapphire Ring, 18K White Gold 3
1.09 Ct. Blue Sapphire Ring, 18K White Gold 4
1.09 Ct. Sapphire 18K White Gold ring
Item ID: 139407
$3,828
View Details
7.60 Ct. Green Sapphire Ring, 18K White Gold 1
7.60 Ct. Green Sapphire Ring, 18K White Gold 2
7.60 Ct. Green Sapphire Ring, 18K White Gold 3
7.60 Ct. Green Sapphire Ring, 18K White Gold 4
7.60 Ct. Sapphire 18K White Gold ring
Item ID: 134106
$14,591
View Details
0.94 Ct. Greenish Blue Sapphire Ring, 18K White Gold 1
0.94 Ct. Greenish Blue Sapphire Ring, 18K White Gold 2
0.94 Ct. Greenish Blue Sapphire Ring, 18K White Gold 3
0.94 Ct. Greenish Blue Sapphire Ring, 18K White Gold 4
0.94 Ct. Sapphire 18K White Gold ring
Item ID: 139646
$2,874
View Details
0.89 Ct. Blue Sapphire Ring, 18K White Gold 1
0.89 Ct. Blue Sapphire Ring, 18K White Gold 2
0.89 Ct. Blue Sapphire Ring, 18K White Gold 3
0.89 Ct. Blue Sapphire Ring, 18K White Gold 4
0.89 Ct. Sapphire 18K White Gold ring
Item ID: 199357
$1,817
View Details
0.92 Ct. Purple Sapphire Ring, 18K White Gold 1
0.92 Ct. Purple Sapphire Ring, 18K White Gold 2
0.92 Ct. Purple Sapphire Ring, 18K White Gold 3
0.92 Ct. Purple Sapphire Ring, 18K White Gold 4
0.92 Ct. Sapphire 18K White Gold ring
Item ID: 198803
$2,421
View Details
1.04 Ct. Blue Sapphire Ring, 18K White Gold 1
1.04 Ct. Blue Sapphire Ring, 18K White Gold 2
1.04 Ct. Blue Sapphire Ring, 18K White Gold 3
1.04 Ct. Blue Sapphire Ring, 18K White Gold 4
1.04 Ct. Sapphire 18K White Gold ring
Item ID: 109210
$2,712
View Details
4.16 Ct. Padparadscha Sapphire Ring, 18K White Gold 1
4.16 Ct. Padparadscha Sapphire Ring, 18K White Gold 2
4.16 Ct. Padparadscha Sapphire Ring, 18K White Gold 3
4.16 Ct. Padparadscha Sapphire Ring, 18K White Gold 4
4.16 Ct. Sapphire 18K White Gold ring
Item ID: 176722
$20,164
View Details
2.02 Ct. Pink Sapphire Ring, 18K White Gold 1
2.02 Ct. Pink Sapphire Ring, 18K White Gold 2
2.02 Ct. Pink Sapphire Ring, 18K White Gold 3
2.02 Ct. Pink Sapphire Ring, 18K White Gold 4
2.02 Ct. Sapphire 18K White Gold ring
Item ID: 204142
$7,717
View Details
5.07 Ct. Blue Sapphire Ring, 18K White Gold 1
5.07 Ct. Blue Sapphire Ring, 18K White Gold 2
5.07 Ct. Blue Sapphire Ring, 18K White Gold 3
5.07 Ct. Blue Sapphire Ring, 18K White Gold 4
5.07 Ct. Sapphire 18K White Gold ring
Item ID: 162563
$31,514
View Details
0.82 Ct. Blue Sapphire Ring, 18K White Gold 1
0.82 Ct. Blue Sapphire Ring, 18K White Gold 2
0.82 Ct. Blue Sapphire Ring, 18K White Gold 3
0.82 Ct. Blue Sapphire Ring, 18K White Gold 4
0.82 Ct. Sapphire 18K White Gold ring
Item ID: 89591
$2,463
View Details
0.96 Ct. Bluish Green Sapphire Ring, 18K White Gold 1
0.96 Ct. Bluish Green Sapphire Ring, 18K White Gold 2
0.96 Ct. Bluish Green Sapphire Ring, 18K White Gold 3
0.96 Ct. Bluish Green Sapphire Ring, 18K White Gold 4
0.96 Ct. Sapphire 18K White Gold ring
Item ID: 139472
$3,186
View Details
0.72 Ct. Blue Sapphire Ring, 18K White Gold 1
0.72 Ct. Blue Sapphire Ring, 18K White Gold 2
0.72 Ct. Blue Sapphire Ring, 18K White Gold 3
0.72 Ct. Blue Sapphire Ring, 18K White Gold 4
0.72 Ct. Sapphire 18K White Gold ring
Item ID: 131314
$2,131
View Details
1.11 Ct. Color Change Sapphire Ring, 18K White Gold 1
1.11 Ct. Color Change Sapphire Ring, 18K White Gold 2
1.11 Ct. Color Change Sapphire Ring, 18K White Gold 3
1.11 Ct. Color Change Sapphire Ring, 18K White Gold 4
1.11 Ct. Sapphire 18K White Gold ring
Item ID: 180478
$2,357
View Details
3.34 Ct. Blue Sapphire Ring, 18K White Gold 1
3.34 Ct. Blue Sapphire Ring, 18K White Gold 2
3.34 Ct. Blue Sapphire Ring, 18K White Gold 3
3.34 Ct. Blue Sapphire Ring, 18K White Gold 4
3.34 Ct. Sapphire 18K White Gold ring
Item ID: 200833
$86,385
View Details
52.27 Ct. Blue Sapphire Ring, 18K White Gold 1
52.27 Ct. Blue Sapphire Ring, 18K White Gold 2
52.27 Ct. Blue Sapphire Ring, 18K White Gold 3
52.27 Ct. Blue Sapphire Ring, 18K White Gold 4
52.27 Ct. Sapphire 18K White Gold ring
Item ID: 141293
$531,757
View Details
0.79 Ct. Greenish Blue Sapphire Ring, 18K White Gold 1
0.79 Ct. Greenish Blue Sapphire Ring, 18K White Gold 2
0.79 Ct. Greenish Blue Sapphire Ring, 18K White Gold 3
0.79 Ct. Greenish Blue Sapphire Ring, 18K White Gold 4
0.79 Ct. Sapphire 18K White Gold ring
Item ID: 97591
$4,088
View Details
3.05 Ct. Bluish Green Sapphire Ring, 18K White Gold 1
3.05 Ct. Bluish Green Sapphire Ring, 18K White Gold 2
3.05 Ct. Bluish Green Sapphire Ring, 18K White Gold 3
3.05 Ct. Bluish Green Sapphire Ring, 18K White Gold 4
3.05 Ct. Sapphire 18K White Gold ring
Item ID: 119625
$7,596
View Details
2.01 Ct. Blue Sapphire Ring, 18K White Gold 1
2.01 Ct. Blue Sapphire Ring, 18K White Gold 2
2.01 Ct. Blue Sapphire Ring, 18K White Gold 3
2.01 Ct. Blue Sapphire Ring, 18K White Gold 4
2.01 Ct. Sapphire 18K White Gold ring
Item ID: 190458
$5,602
View Details
1.43 Ct. Blue Sapphire Ring, 18K White Gold 1
1.43 Ct. Blue Sapphire Ring, 18K White Gold 2
1.43 Ct. Blue Sapphire Ring, 18K White Gold 3
1.43 Ct. Blue Sapphire Ring, 18K White Gold 4
1.43 Ct. Sapphire 18K White Gold ring
Item ID: 162886
$3,914
View Details
0.77 Ct. Greenish Blue Sapphire Ring, 18K White Gold 1
0.77 Ct. Greenish Blue Sapphire Ring, 18K White Gold 2
0.77 Ct. Greenish Blue Sapphire Ring, 18K White Gold 3
0.77 Ct. Greenish Blue Sapphire Ring, 18K White Gold 4
0.77 Ct. Sapphire 18K White Gold ring
Item ID: 53252
$2,914
View Details
4.50 Ct. Bluish Green Sapphire Ring, 18K White Gold 1
4.50 Ct. Bluish Green Sapphire Ring, 18K White Gold 2
4.50 Ct. Bluish Green Sapphire Ring, 18K White Gold 3
4.50 Ct. Bluish Green Sapphire Ring, 18K White Gold 4
4.50 Ct. Sapphire 18K White Gold ring
Item ID: 206325
$13,162
View Details
3.87 Ct. Blue Sapphire Ring, 18K White Gold 1
3.87 Ct. Blue Sapphire Ring, 18K White Gold 2
3.87 Ct. Blue Sapphire Ring, 18K White Gold 3
3.87 Ct. Blue Sapphire Ring, 18K White Gold 4
3.87 Ct. Sapphire 18K White Gold ring
Item ID: 108977
$18,324
View Details
0.94 Ct. Blue Sapphire Ring, 18K White Gold 1
0.94 Ct. Blue Sapphire Ring, 18K White Gold 2
0.94 Ct. Blue Sapphire Ring, 18K White Gold 3
0.94 Ct. Blue Sapphire Ring, 18K White Gold 4
0.94 Ct. Sapphire 18K White Gold ring
Item ID: 145730
$2,690
View Details
2.51 Ct. Blue Sapphire Ring, 18K White Gold 1
2.51 Ct. Blue Sapphire Ring, 18K White Gold 2
2.51 Ct. Blue Sapphire Ring, 18K White Gold 3
2.51 Ct. Blue Sapphire Ring, 18K White Gold 4
2.51 Ct. Sapphire 18K White Gold ring
Item ID: 197958
$13,298
View Details
1.11 Ct. Green Sapphire Ring, 18K White Gold 1
1.11 Ct. Green Sapphire Ring, 18K White Gold 2
1.11 Ct. Green Sapphire Ring, 18K White Gold 3
1.11 Ct. Green Sapphire Ring, 18K White Gold 4
1.11 Ct. Sapphire 18K White Gold ring
Item ID: 151165
$3,494
View Details
2.93 Ct. Blue Sapphire Ring, 18K White Gold 1
2.93 Ct. Blue Sapphire Ring, 18K White Gold 2
2.93 Ct. Blue Sapphire Ring, 18K White Gold 3
2.93 Ct. Blue Sapphire Ring, 18K White Gold 4
2.93 Ct. Sapphire 18K White Gold ring
Item ID: 197833
$18,537
View Details
1.11 Ct. Green Sapphire Ring, 18K White Gold 1
1.11 Ct. Green Sapphire Ring, 18K White Gold 2
1.11 Ct. Green Sapphire Ring, 18K White Gold 3
1.11 Ct. Green Sapphire Ring, 18K White Gold 4
1.11 Ct. Sapphire 18K White Gold ring
Item ID: 151173
$3,513
View Details
2.11 Ct. White Sapphire Ring, 18K White Gold 1
2.11 Ct. White Sapphire Ring, 18K White Gold 2
2.11 Ct. White Sapphire Ring, 18K White Gold 3
2.11 Ct. White Sapphire Ring, 18K White Gold 4
2.11 Ct. Sapphire 18K White Gold ring
Item ID: 109852
$3,545
View Details
0.86 Ct. Bi Color Sapphire Ring, 18K White Gold 1
0.86 Ct. Bi Color Sapphire Ring, 18K White Gold 2
0.86 Ct. Bi Color Sapphire Ring, 18K White Gold 3
0.86 Ct. Bi Color Sapphire Ring, 18K White Gold 4
0.86 Ct. Sapphire 18K White Gold ring
Item ID: 150571
$3,304
View Details
2.99 Ct. Blue Sapphire Ring, 18K White Gold 1
2.99 Ct. Blue Sapphire Ring, 18K White Gold 2
2.99 Ct. Blue Sapphire Ring, 18K White Gold 3
2.99 Ct. Blue Sapphire Ring, 18K White Gold 4
2.99 Ct. Sapphire 18K White Gold ring
Item ID: 201403
$21,359
View Details
3.03 Ct. Blue Sapphire Ring, 18K White Gold 1
3.03 Ct. Blue Sapphire Ring, 18K White Gold 2
3.03 Ct. Blue Sapphire Ring, 18K White Gold 3
3.03 Ct. Blue Sapphire Ring, 18K White Gold 4
3.03 Ct. Sapphire 18K White Gold ring
Item ID: 169922
$11,809
View Details
2.02 Ct. Yellow Sapphire Ring, 18K White Gold 1
2.02 Ct. Yellow Sapphire Ring, 18K White Gold 2
2.02 Ct. Yellow Sapphire Ring, 18K White Gold 3
2.02 Ct. Yellow Sapphire Ring, 18K White Gold 4
2.02 Ct. Sapphire 18K White Gold ring
Item ID: 172857
$4,007
View Details
3.03 Ct. Blue Sapphire Ring, 18K White Gold 1
3.03 Ct. Blue Sapphire Ring, 18K White Gold 2
3.03 Ct. Blue Sapphire Ring, 18K White Gold 3
3.03 Ct. Blue Sapphire Ring, 18K White Gold 4
3.03 Ct. Sapphire 18K White Gold ring
Item ID: 170466
$13,813
View Details
3.03 Ct. Yellow Sapphire Ring, 18K White Gold 1
3.03 Ct. Yellow Sapphire Ring, 18K White Gold 2
3.03 Ct. Yellow Sapphire Ring, 18K White Gold 3
3.03 Ct. Yellow Sapphire Ring, 18K White Gold 4
3.03 Ct. Sapphire 18K White Gold ring
Item ID: 86269
$6,980
View Details
0.79 Ct. Padparadscha Sapphire Ring, 18K White Gold 1
0.79 Ct. Padparadscha Sapphire Ring, 18K White Gold 2
0.79 Ct. Padparadscha Sapphire Ring, 18K White Gold 3
0.79 Ct. Padparadscha Sapphire Ring, 18K White Gold 4
0.79 Ct. Sapphire 18K White Gold ring
Item ID: 199702
$3,733
View Details
1.28 Ct. Blue Sapphire Ring, 18K White Gold 1
1.28 Ct. Blue Sapphire Ring, 18K White Gold 2
1.28 Ct. Blue Sapphire Ring, 18K White Gold 3
1.28 Ct. Blue Sapphire Ring, 18K White Gold 4
1.28 Ct. Sapphire 18K White Gold ring
Item ID: 90320
$4,025
View Details
1.57 Ct. Greenish Blue Sapphire Ring, 18K White Gold 1
1.57 Ct. Greenish Blue Sapphire Ring, 18K White Gold 2
1.57 Ct. Greenish Blue Sapphire Ring, 18K White Gold 3
1.57 Ct. Greenish Blue Sapphire Ring, 18K White Gold 4
1.57 Ct. Sapphire 18K White Gold ring
Item ID: 149349
$4,966
View Details
1.25 Ct. Bluish Green Sapphire Ring, 18K White Gold 1
1.25 Ct. Bluish Green Sapphire Ring, 18K White Gold 2
1.25 Ct. Bluish Green Sapphire Ring, 18K White Gold 3
1.25 Ct. Bluish Green Sapphire Ring, 18K White Gold 4
1.25 Ct. Sapphire 18K White Gold ring
Item ID: 127046
$3,780
View Details
4.88 Ct. Greenish Blue Sapphire Ring, 18K White Gold 1
4.88 Ct. Greenish Blue Sapphire Ring, 18K White Gold 2
4.88 Ct. Greenish Blue Sapphire Ring, 18K White Gold 3
4.88 Ct. Greenish Blue Sapphire Ring, 18K White Gold 4
4.88 Ct. Sapphire 18K White Gold ring
Item ID: 83497
$10,970
View Details
0.69 Ct. Bluish Green Sapphire Ring, 18K White Gold 1
0.69 Ct. Bluish Green Sapphire Ring, 18K White Gold 2
0.69 Ct. Bluish Green Sapphire Ring, 18K White Gold 3
0.69 Ct. Bluish Green Sapphire Ring, 18K White Gold 4
0.69 Ct. Sapphire 18K White Gold ring
Item ID: 196482
$2,969
View Details
1.75 Ct. Pink Sapphire Ring, 18K White Gold 1
1.75 Ct. Pink Sapphire Ring, 18K White Gold 2
1.75 Ct. Pink Sapphire Ring, 18K White Gold 3
1.75 Ct. Pink Sapphire Ring, 18K White Gold 4
1.75 Ct. Sapphire 18K White Gold ring
Item ID: 150305
$4,379
View Details
1
...
289290291292293294295
...
557

Our Customers Love Us

See what people are saying on Google and Verified Reviews