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
33258 results
Change view:
Sort by:
Select
Change view:
8.43 Ct. Blue Sapphire Ring, 18K White Gold 1
8.43 Ct. Blue Sapphire Ring, 18K White Gold 2
8.43 Ct. Blue Sapphire Ring, 18K White Gold 3
8.43 Ct. Blue Sapphire Ring, 18K White Gold 4
8.43 Ct. Sapphire 18K White Gold ring
Item ID: 183004
$39,273
View Details
1.67 Ct. Pink Sapphire Ring, 18K White Gold 1
1.67 Ct. Pink Sapphire Ring, 18K White Gold 2
1.67 Ct. Pink Sapphire Ring, 18K White Gold 3
1.67 Ct. Pink Sapphire Ring, 18K White Gold 4
1.67 Ct. Sapphire 18K White Gold ring
Item ID: 154709
$8,757
View Details
1.09 Ct. Pink Sapphire Ring, 18K White Gold 1
1.09 Ct. Pink Sapphire Ring, 18K White Gold 2
1.09 Ct. Pink Sapphire Ring, 18K White Gold 3
1.09 Ct. Pink Sapphire Ring, 18K White Gold 4
1.09 Ct. Sapphire 18K White Gold ring
Item ID: 97766
$3,451
View Details
1.09 Ct. Pink Sapphire Ring, 18K White Gold 1
1.09 Ct. Pink Sapphire Ring, 18K White Gold 2
1.09 Ct. Pink Sapphire Ring, 18K White Gold 3
1.09 Ct. Pink Sapphire Ring, 18K White Gold 4
1.09 Ct. Sapphire 18K White Gold ring
Item ID: 97762
$2,794
View Details
1.67 Ct. Pink Sapphire Ring, 18K White Gold 1
1.67 Ct. Pink Sapphire Ring, 18K White Gold 2
1.67 Ct. Pink Sapphire Ring, 18K White Gold 3
1.67 Ct. Pink Sapphire Ring, 18K White Gold 4
1.67 Ct. Sapphire 18K White Gold ring
Item ID: 145928
$5,901
View Details
1.75 Ct. Blue Sapphire Ring, 18K White Gold 1
1.75 Ct. Blue Sapphire Ring, 18K White Gold 2
1.75 Ct. Blue Sapphire Ring, 18K White Gold 3
1.75 Ct. Blue Sapphire Ring, 18K White Gold 4
1.75 Ct. Sapphire 18K White Gold ring
Item ID: 163286
$3,472
View Details
4.08 Ct. Blue Sapphire Ring, 18K White Gold 1
4.08 Ct. Blue Sapphire Ring, 18K White Gold 2
4.08 Ct. Blue Sapphire Ring, 18K White Gold 3
4.08 Ct. Blue Sapphire Ring, 18K White Gold 4
4.08 Ct. Sapphire 18K White Gold ring
Item ID: 138309
$27,259
View Details
1.66 Ct. Blue Sapphire Ring, 18K White Gold 1
1.66 Ct. Blue Sapphire Ring, 18K White Gold 2
1.66 Ct. Blue Sapphire Ring, 18K White Gold 3
1.66 Ct. Blue Sapphire Ring, 18K White Gold 4
1.66 Ct. Sapphire 18K White Gold ring
Item ID: 185339
$4,526
View Details
2.18 Ct. Bi Color Sapphire Ring, 18K White Gold 1
2.18 Ct. Bi Color Sapphire Ring, 18K White Gold 2
2.18 Ct. Bi Color Sapphire Ring, 18K White Gold 3
2.18 Ct. Bi Color Sapphire Ring, 18K White Gold 4
2.18 Ct. Sapphire 18K White Gold ring
Item ID: 112525
$8,661
View Details
3.36 Ct. Blue Sapphire Ring, 18K White Gold 1
3.36 Ct. Blue Sapphire Ring, 18K White Gold 2
3.36 Ct. Blue Sapphire Ring, 18K White Gold 3
3.36 Ct. Blue Sapphire Ring, 18K White Gold 4
3.36 Ct. Sapphire 18K White Gold ring
Item ID: 188972
$21,807
View Details
0.49 Ct. Bluish Green Sapphire Ring, 18K White Gold 1
0.49 Ct. Bluish Green Sapphire Ring, 18K White Gold 2
0.49 Ct. Bluish Green Sapphire Ring, 18K White Gold 3
0.49 Ct. Bluish Green Sapphire Ring, 18K White Gold 4
0.49 Ct. Sapphire 18K White Gold ring
Item ID: 166442
$3,680
View Details
2.05 Ct. Greenish Blue Sapphire Ring, 18K White Gold 1
2.05 Ct. Greenish Blue Sapphire Ring, 18K White Gold 2
2.05 Ct. Greenish Blue Sapphire Ring, 18K White Gold 3
2.05 Ct. Greenish Blue Sapphire Ring, 18K White Gold 4
2.05 Ct. Sapphire 18K White Gold ring
Item ID: 137975
$5,153
View Details
2.05 Ct. Greenish Blue Sapphire Ring, 18K White Gold 1
2.05 Ct. Greenish Blue Sapphire Ring, 18K White Gold 2
2.05 Ct. Greenish Blue Sapphire Ring, 18K White Gold 3
2.05 Ct. Greenish Blue Sapphire Ring, 18K White Gold 4
2.05 Ct. Sapphire 18K White Gold ring
Item ID: 138005
$6,120
View Details
1.29 Ct. Blue Sapphire Ring, 18K White Gold 1
1.29 Ct. Blue Sapphire Ring, 18K White Gold 2
1.29 Ct. Blue Sapphire Ring, 18K White Gold 3
1.29 Ct. Blue Sapphire Ring, 18K White Gold 4
1.29 Ct. Sapphire 18K White Gold ring
Item ID: 188448
$5,774
View Details
1.26 Ct. Orange Sapphire Ring, 18K White Gold 1
1.26 Ct. Orange Sapphire Ring, 18K White Gold 2
1.26 Ct. Orange Sapphire Ring, 18K White Gold 3
1.26 Ct. Orange Sapphire Ring, 18K White Gold 4
1.26 Ct. Sapphire 18K White Gold ring
Item ID: 174217
$5,880
View Details
1.26 Ct. Orange Sapphire Ring, 18K White Gold 1
1.26 Ct. Orange Sapphire Ring, 18K White Gold 2
1.26 Ct. Orange Sapphire Ring, 18K White Gold 3
1.26 Ct. Orange Sapphire Ring, 18K White Gold 4
1.26 Ct. Sapphire 18K White Gold ring
Item ID: 172051
$5,272
View Details
8.03 Ct. Blue Sapphire Ring, 18K White Gold 1
8.03 Ct. Blue Sapphire Ring, 18K White Gold 2
8.03 Ct. Blue Sapphire Ring, 18K White Gold 3
8.03 Ct. Blue Sapphire Ring, 18K White Gold 4
8.03 Ct. Sapphire 18K White Gold ring
Item ID: 170294
$58,404
View Details
1.17 Ct. Pink Sapphire Ring, 18K White Gold 1
1.17 Ct. Pink Sapphire Ring, 18K White Gold 2
1.17 Ct. Pink Sapphire Ring, 18K White Gold 3
1.17 Ct. Pink Sapphire Ring, 18K White Gold 4
1.17 Ct. Sapphire 18K White Gold ring
Item ID: 97218
$3,159
View Details
4.27 Ct. Violet Sapphire Ring, 18K White Gold 1
4.27 Ct. Violet Sapphire Ring, 18K White Gold 2
4.27 Ct. Violet Sapphire Ring, 18K White Gold 3
4.27 Ct. Violet Sapphire Ring, 18K White Gold 4
4.27 Ct. Sapphire 18K White Gold ring
Item ID: 165572
$9,810
View Details
1.62 Ct. Yellow Sapphire Ring, 18K White Gold 1
1.62 Ct. Yellow Sapphire Ring, 18K White Gold 2
1.62 Ct. Yellow Sapphire Ring, 18K White Gold 3
1.62 Ct. Yellow Sapphire Ring, 18K White Gold 4
1.62 Ct. Sapphire 18K White Gold ring
Item ID: 183954
$4,912
View Details
2.89 Ct. Bluish Green Sapphire Ring, 18K White Gold 1
2.89 Ct. Bluish Green Sapphire Ring, 18K White Gold 2
2.89 Ct. Bluish Green Sapphire Ring, 18K White Gold 3
2.89 Ct. Bluish Green Sapphire Ring, 18K White Gold 4
2.89 Ct. Sapphire 18K White Gold ring
Item ID: 190515
$5,457
View Details
5.38 Ct. Blue Sapphire Ring, 18K White Gold 1
5.38 Ct. Blue Sapphire Ring, 18K White Gold 2
5.38 Ct. Blue Sapphire Ring, 18K White Gold 3
5.38 Ct. Blue Sapphire Ring, 18K White Gold 4
5.38 Ct. Sapphire 18K White Gold ring
Item ID: 92022
$27,256
View Details
2.04 Ct. Padparadscha Sapphire Ring, 18K White Gold 1
2.04 Ct. Padparadscha Sapphire Ring, 18K White Gold 2
2.04 Ct. Padparadscha Sapphire Ring, 18K White Gold 3
2.04 Ct. Padparadscha Sapphire Ring, 18K White Gold 4
2.04 Ct. Sapphire 18K White Gold ring
Item ID: 191504
$9,811
View Details
3.17 Ct. Purple Sapphire Ring, 18K White Gold 1
3.17 Ct. Purple Sapphire Ring, 18K White Gold 2
3.17 Ct. Purple Sapphire Ring, 18K White Gold 3
3.17 Ct. Purple Sapphire Ring, 18K White Gold 4
3.17 Ct. Sapphire 18K White Gold ring
Item ID: 101791
$6,497
View Details
2.11 Ct. Yellow Sapphire Ring, 18K White Gold 1
2.11 Ct. Yellow Sapphire Ring, 18K White Gold 2
2.11 Ct. Yellow Sapphire Ring, 18K White Gold 3
2.11 Ct. Yellow Sapphire Ring, 18K White Gold 4
2.11 Ct. Sapphire 18K White Gold ring
Item ID: 129268
$4,375
View Details
1.66 Ct. Padparadscha Sapphire Ring, 18K White Gold 1
1.66 Ct. Padparadscha Sapphire Ring, 18K White Gold 2
1.66 Ct. Padparadscha Sapphire Ring, 18K White Gold 3
1.66 Ct. Padparadscha Sapphire Ring, 18K White Gold 4
1.66 Ct. Sapphire 18K White Gold ring
Item ID: 185421
$11,334
View Details
0.59 Ct. Purple Sapphire Ring, 18K White Gold 1
0.59 Ct. Purple Sapphire Ring, 18K White Gold 2
0.59 Ct. Purple Sapphire Ring, 18K White Gold 3
0.59 Ct. Purple Sapphire Ring, 18K White Gold 4
0.59 Ct. Sapphire 18K White Gold ring
Item ID: 138827
$2,566
View Details
6.28 Ct. Orange Sapphire Ring, 18K White Gold 1
6.28 Ct. Orange Sapphire Ring, 18K White Gold 2
6.28 Ct. Orange Sapphire Ring, 18K White Gold 3
6.28 Ct. Orange Sapphire Ring, 18K White Gold 4
6.28 Ct. Sapphire 18K White Gold ring
Item ID: 120493
$12,075
View Details
0.74 Ct. Purple Sapphire Ring, 18K White Gold 1
0.74 Ct. Purple Sapphire Ring, 18K White Gold 2
0.74 Ct. Purple Sapphire Ring, 18K White Gold 3
0.74 Ct. Purple Sapphire Ring, 18K White Gold 4
0.74 Ct. Sapphire 18K White Gold ring
Item ID: 114650
$2,706
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: 179310
$4,488
View Details
1.76 Ct. Purple Sapphire Ring, 18K White Gold 1
1.76 Ct. Purple Sapphire Ring, 18K White Gold 2
1.76 Ct. Purple Sapphire Ring, 18K White Gold 3
1.76 Ct. Purple Sapphire Ring, 18K White Gold 4
1.76 Ct. Sapphire 18K White Gold ring
Item ID: 196540
$7,844
View Details
2.12 Ct. Padparadscha Sapphire Ring, 18K White Gold 1
2.12 Ct. Padparadscha Sapphire Ring, 18K White Gold 2
2.12 Ct. Padparadscha Sapphire Ring, 18K White Gold 3
2.12 Ct. Padparadscha Sapphire Ring, 18K White Gold 4
2.12 Ct. Sapphire 18K White Gold ring
Item ID: 101105
$8,980
View Details
2.19 Ct. Bluish Green Sapphire Ring, 18K White Gold 1
2.19 Ct. Bluish Green Sapphire Ring, 18K White Gold 2
2.19 Ct. Bluish Green Sapphire Ring, 18K White Gold 3
2.19 Ct. Bluish Green Sapphire Ring, 18K White Gold 4
2.19 Ct. Sapphire 18K White Gold ring
Item ID: 183037
$5,076
View Details
2.58 Ct. White Sapphire Ring, 18K White Gold 1
2.58 Ct. White Sapphire Ring, 18K White Gold 2
2.58 Ct. White Sapphire Ring, 18K White Gold 3
2.58 Ct. White Sapphire Ring, 18K White Gold 4
2.58 Ct. Sapphire 18K White Gold ring
Item ID: 171794
$7,504
View Details
1.64 Ct. Green Sapphire Ring, 18K White Gold 1
1.64 Ct. Green Sapphire Ring, 18K White Gold 2
1.64 Ct. Green Sapphire Ring, 18K White Gold 3
1.64 Ct. Green Sapphire Ring, 18K White Gold 4
1.64 Ct. Sapphire 18K White Gold ring
Item ID: 179519
$4,672
View Details
1.43 Ct. Purplish Pink Sapphire Ring, 18K White Gold 1
1.43 Ct. Purplish Pink Sapphire Ring, 18K White Gold 2
1.43 Ct. Purplish Pink Sapphire Ring, 18K White Gold 3
1.43 Ct. Purplish Pink Sapphire Ring, 18K White Gold 4
1.43 Ct. Sapphire 18K White Gold ring
Item ID: 108066
$3,998
View Details
1.04 Ct. Padparadscha Sapphire Ring, 18K White Gold 1
1.04 Ct. Padparadscha Sapphire Ring, 18K White Gold 2
1.04 Ct. Padparadscha Sapphire Ring, 18K White Gold 3
1.04 Ct. Padparadscha Sapphire Ring, 18K White Gold 4
1.04 Ct. Sapphire 18K White Gold ring
Item ID: 195250
$4,775
View Details
1.25 Ct. Blue Sapphire Ring, 18K White Gold 1
1.25 Ct. Blue Sapphire Ring, 18K White Gold 2
1.25 Ct. Blue Sapphire Ring, 18K White Gold 3
1.25 Ct. Blue Sapphire Ring, 18K White Gold 4
1.25 Ct. Sapphire 18K White Gold ring
Item ID: 127592
$4,299
View Details
11.64 Ct. Blue Sapphire Ring, 18K White Gold 1
11.64 Ct. Blue Sapphire Ring, 18K White Gold 2
11.64 Ct. Blue Sapphire Ring, 18K White Gold 3
11.64 Ct. Blue Sapphire Ring, 18K White Gold 4
11.64 Ct. Sapphire 18K White Gold ring
Item ID: 188849
$4,203
View Details
1.15 Ct. Padparadscha Sapphire Ring, 18K White Gold 1
1.15 Ct. Padparadscha Sapphire Ring, 18K White Gold 2
1.15 Ct. Padparadscha Sapphire Ring, 18K White Gold 3
1.15 Ct. Padparadscha Sapphire Ring, 18K White Gold 4
1.15 Ct. Sapphire 18K White Gold ring
Item ID: 194634
$7,899
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: 195599
$2,994
View Details
0.71 Ct. Greenish Blue Sapphire Ring, 18K White Gold 1
0.71 Ct. Greenish Blue Sapphire Ring, 18K White Gold 2
0.71 Ct. Greenish Blue Sapphire Ring, 18K White Gold 3
0.71 Ct. Greenish Blue Sapphire Ring, 18K White Gold 4
0.71 Ct. Sapphire 18K White Gold ring
Item ID: 90346
$4,266
View Details
1.76 Ct. Blue Sapphire Ring, 18K White Gold 1
1.76 Ct. Blue Sapphire Ring, 18K White Gold 2
1.76 Ct. Blue Sapphire Ring, 18K White Gold 3
1.76 Ct. Blue Sapphire Ring, 18K White Gold 4
1.76 Ct. Sapphire 18K White Gold ring
Item ID: 184627
$2,864
View Details
1.11 Ct. Blue Sapphire Ring, 18K White Gold 1
1.11 Ct. Blue Sapphire Ring, 18K White Gold 2
1.11 Ct. Blue Sapphire Ring, 18K White Gold 3
1.11 Ct. Blue Sapphire Ring, 18K White Gold 4
1.11 Ct. Sapphire 18K White Gold ring
Item ID: 165747
$4,092
View Details
0.39 Ct. Blue Sapphire Ring, 18K White Gold 1
0.39 Ct. Blue Sapphire Ring, 18K White Gold 2
0.39 Ct. Blue Sapphire Ring, 18K White Gold 3
0.39 Ct. Blue Sapphire Ring, 18K White Gold 4
0.39 Ct. Sapphire 18K White Gold ring
Item ID: 176673
$2,819
View Details
5.38 Ct. Blue Sapphire Ring, 18K White Gold 1
5.38 Ct. Blue Sapphire Ring, 18K White Gold 2
5.38 Ct. Blue Sapphire Ring, 18K White Gold 3
5.38 Ct. Blue Sapphire Ring, 18K White Gold 4
5.38 Ct. Sapphire 18K White Gold ring
Item ID: 128000
$30,645
View Details
2.93 Ct. Greenish Blue Sapphire Ring, 18K White Gold 1
2.93 Ct. Greenish Blue Sapphire Ring, 18K White Gold 2
2.93 Ct. Greenish Blue Sapphire Ring, 18K White Gold 3
2.93 Ct. Greenish Blue Sapphire Ring, 18K White Gold 4
2.93 Ct. Sapphire 18K White Gold ring
Item ID: 172320
$8,803
View Details
1.25 Ct. Blue Sapphire Ring, 18K White Gold 1
1.25 Ct. Blue Sapphire Ring, 18K White Gold 2
1.25 Ct. Blue Sapphire Ring, 18K White Gold 3
1.25 Ct. Blue Sapphire Ring, 18K White Gold 4
1.25 Ct. Sapphire 18K White Gold ring
Item ID: 185786
$3,460
View Details
1.13 Ct. Padparadscha Sapphire Ring, 18K White Gold 1
1.13 Ct. Padparadscha Sapphire Ring, 18K White Gold 2
1.13 Ct. Padparadscha Sapphire Ring, 18K White Gold 3
1.13 Ct. Padparadscha Sapphire Ring, 18K White Gold 4
1.13 Ct. Sapphire 18K White Gold ring
Item ID: 180769
$7,961
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: 21137
$4,649
View Details
1.20 Ct. Blue Sapphire Ring, 18K White Gold 1
1.20 Ct. Blue Sapphire Ring, 18K White Gold 2
1.20 Ct. Blue Sapphire Ring, 18K White Gold 3
1.20 Ct. Blue Sapphire Ring, 18K White Gold 4
1.20 Ct. Sapphire 18K White Gold ring
Item ID: 181159
$2,147
View Details
1.06 Ct. Bi Color Sapphire Ring, 18K White Gold 1
1.06 Ct. Bi Color Sapphire Ring, 18K White Gold 2
1.06 Ct. Bi Color Sapphire Ring, 18K White Gold 3
1.06 Ct. Bi Color Sapphire Ring, 18K White Gold 4
1.06 Ct. Sapphire 18K White Gold ring
Item ID: 191398
$3,352
View Details
3.31 Ct. Bluish Green Sapphire Ring, 18K White Gold 1
3.31 Ct. Bluish Green Sapphire Ring, 18K White Gold 2
3.31 Ct. Bluish Green Sapphire Ring, 18K White Gold 3
3.31 Ct. Bluish Green Sapphire Ring, 18K White Gold 4
3.31 Ct. Sapphire 18K White Gold ring
Item ID: 195352
$3,951
View Details
1.66 Ct. Padparadscha Sapphire Ring, 18K White Gold 1
1.66 Ct. Padparadscha Sapphire Ring, 18K White Gold 2
1.66 Ct. Padparadscha Sapphire Ring, 18K White Gold 3
1.66 Ct. Padparadscha Sapphire Ring, 18K White Gold 4
1.66 Ct. Sapphire 18K White Gold ring
Item ID: 185666
$10,652
View Details
0.44 Ct. Blue Sapphire Ring, 18K White Gold 1
0.44 Ct. Blue Sapphire Ring, 18K White Gold 2
0.44 Ct. Blue Sapphire Ring, 18K White Gold 3
0.44 Ct. Blue Sapphire Ring, 18K White Gold 4
0.44 Ct. Sapphire 18K White Gold ring
Item ID: 132595
$2,353
View Details
1.55 Ct. Blue Sapphire Ring, 18K White Gold 1
1.55 Ct. Blue Sapphire Ring, 18K White Gold 2
1.55 Ct. Blue Sapphire Ring, 18K White Gold 3
1.55 Ct. Blue Sapphire Ring, 18K White Gold 4
1.55 Ct. Sapphire 18K White Gold ring
Item ID: 184336
$2,366
View Details
1.42 Ct. Pink Sapphire Ring, 18K White Gold 1
1.42 Ct. Pink Sapphire Ring, 18K White Gold 2
1.42 Ct. Pink Sapphire Ring, 18K White Gold 3
1.42 Ct. Pink Sapphire Ring, 18K White Gold 4
1.42 Ct. Sapphire 18K White Gold ring
Item ID: 193222
$3,317
View Details
1.53 Ct. White Sapphire Ring, 18K White Gold 1
1.53 Ct. White Sapphire Ring, 18K White Gold 2
1.53 Ct. White Sapphire Ring, 18K White Gold 3
1.53 Ct. White Sapphire Ring, 18K White Gold 4
1.53 Ct. Sapphire 18K White Gold ring
Item ID: 186974
$2,584
View Details
2.12 Ct. Padparadscha Sapphire Ring, 18K White Gold 1
2.12 Ct. Padparadscha Sapphire Ring, 18K White Gold 2
2.12 Ct. Padparadscha Sapphire Ring, 18K White Gold 3
2.12 Ct. Padparadscha Sapphire Ring, 18K White Gold 4
2.12 Ct. Sapphire 18K White Gold ring
Item ID: 101109
$8,597
View Details
11.75 Ct. White Sapphire Ring, 18K White Gold 1
11.75 Ct. White Sapphire Ring, 18K White Gold 2
11.75 Ct. White Sapphire Ring, 18K White Gold 3
11.75 Ct. White Sapphire Ring, 18K White Gold 4
11.75 Ct. Sapphire 18K White Gold ring
Item ID: 196120
$35,186
View Details
1
...
199200201202203204205
...
555

Our Customers Love Us

See what people are saying on Google and Verified Reviews