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
33252 results
Change view:
Sort by:
Select
Change view:
1.00 Ct. Blue Sapphire Ring, 18K White Gold 1
1.00 Ct. Blue Sapphire Ring, 18K White Gold 2
1.00 Ct. Blue Sapphire Ring, 18K White Gold 3
1.00 Ct. Blue Sapphire Ring, 18K White Gold 4
1.00 Ct. Sapphire 18K White Gold ring
Item ID: 190142
$2,302
View Details
7.02 Ct. Blue Sapphire Ring, 18K White Gold 1
7.02 Ct. Blue Sapphire Ring, 18K White Gold 2
7.02 Ct. Blue Sapphire Ring, 18K White Gold 3
7.02 Ct. Blue Sapphire Ring, 18K White Gold 4
7.02 Ct. Sapphire 18K White Gold ring
Item ID: 83360
$19,695
View Details
3.04 Ct. Pinkish Brown Sapphire Ring, 18K White Gold 1
3.04 Ct. Pinkish Brown Sapphire Ring, 18K White Gold 2
3.04 Ct. Pinkish Brown Sapphire Ring, 18K White Gold 3
3.04 Ct. Pinkish Brown Sapphire Ring, 18K White Gold 4
3.04 Ct. Sapphire 18K White Gold ring
Item ID: 112790
$5,944
View Details
3.10 Ct. Purple Sapphire Ring, 18K White Gold 1
3.10 Ct. Purple Sapphire Ring, 18K White Gold 2
3.10 Ct. Purple Sapphire Ring, 18K White Gold 3
3.10 Ct. Purple Sapphire Ring, 18K White Gold 4
3.10 Ct. Sapphire 18K White Gold ring
Item ID: 190779
$9,932
View Details
3.26 Ct. Blue Sapphire Ring, 18K White Gold 1
3.26 Ct. Blue Sapphire Ring, 18K White Gold 2
3.26 Ct. Blue Sapphire Ring, 18K White Gold 3
3.26 Ct. Blue Sapphire Ring, 18K White Gold 4
3.26 Ct. Sapphire 18K White Gold ring
Item ID: 177146
$9,679
View Details
1.56 Ct. Blue Sapphire Ring, 18K White Gold 1
1.56 Ct. Blue Sapphire Ring, 18K White Gold 2
1.56 Ct. Blue Sapphire Ring, 18K White Gold 3
1.56 Ct. Blue Sapphire Ring, 18K White Gold 4
1.56 Ct. Sapphire 18K White Gold ring
Item ID: 180195
$8,800
View Details
1.65 Ct. Purple Sapphire Ring, 18K White Gold 1
1.65 Ct. Purple Sapphire Ring, 18K White Gold 2
1.65 Ct. Purple Sapphire Ring, 18K White Gold 3
1.65 Ct. Purple Sapphire Ring, 18K White Gold 4
1.65 Ct. Sapphire 18K White Gold ring
Item ID: 171378
$4,978
View Details
0.57 Ct. Blue Sapphire Ring, 18K White Gold 1
0.57 Ct. Blue Sapphire Ring, 18K White Gold 2
0.57 Ct. Blue Sapphire Ring, 18K White Gold 3
0.57 Ct. Blue Sapphire Ring, 18K White Gold 4
0.57 Ct. Sapphire 18K White Gold ring
Item ID: 86282
$2,241
View Details
1.58 Ct. Padparadscha Sapphire Ring, 18K White Gold 1
1.58 Ct. Padparadscha Sapphire Ring, 18K White Gold 2
1.58 Ct. Padparadscha Sapphire Ring, 18K White Gold 3
1.58 Ct. Padparadscha Sapphire Ring, 18K White Gold 4
1.58 Ct. Sapphire 18K White Gold ring
Item ID: 112024
$8,614
View Details
0.88 Ct. Yellow Sapphire Ring, 18K White Gold 1
0.88 Ct. Yellow Sapphire Ring, 18K White Gold 2
0.88 Ct. Yellow Sapphire Ring, 18K White Gold 3
0.88 Ct. Yellow Sapphire Ring, 18K White Gold 4
0.88 Ct. Sapphire 18K White Gold ring
Item ID: 85789
$3,367
View Details
0.81 Ct. Blue Sapphire Ring, 18K White Gold 1
0.81 Ct. Blue Sapphire Ring, 18K White Gold 2
0.81 Ct. Blue Sapphire Ring, 18K White Gold 3
0.81 Ct. Blue Sapphire Ring, 18K White Gold 4
0.81 Ct. Sapphire 18K White Gold ring
Item ID: 167716
$4,170
View Details
3.30 Ct. Blue Sapphire Ring, 18K White Gold 1
3.30 Ct. Blue Sapphire Ring, 18K White Gold 2
3.30 Ct. Blue Sapphire Ring, 18K White Gold 3
3.30 Ct. Blue Sapphire Ring, 18K White Gold 4
3.30 Ct. Sapphire 18K White Gold ring
Item ID: 182930
$11,351
View Details
3.04 Ct. Blue Sapphire Ring, 18K White Gold 1
3.04 Ct. Blue Sapphire Ring, 18K White Gold 2
3.04 Ct. Blue Sapphire Ring, 18K White Gold 3
3.04 Ct. Blue Sapphire Ring, 18K White Gold 4
3.04 Ct. Sapphire 18K White Gold ring
Item ID: 105667
$8,655
View Details
1.21 Ct. Greyish Blue Sapphire Ring, 18K White Gold 1
1.21 Ct. Greyish Blue Sapphire Ring, 18K White Gold 2
1.21 Ct. Greyish Blue Sapphire Ring, 18K White Gold 3
1.21 Ct. Greyish Blue Sapphire Ring, 18K White Gold 4
1.21 Ct. Sapphire 18K White Gold ring
Item ID: 196693
$4,048
View Details
5.12 Ct. Blue Sapphire Ring, 18K White Gold 1
5.12 Ct. Blue Sapphire Ring, 18K White Gold 2
5.12 Ct. Blue Sapphire Ring, 18K White Gold 3
5.12 Ct. Blue Sapphire Ring, 18K White Gold 4
5.12 Ct. Sapphire 18K White Gold ring
Item ID: 160250
$22,322
View Details
4.07 Ct. White Sapphire Ring, 18K White Gold 1
4.07 Ct. White Sapphire Ring, 18K White Gold 2
4.07 Ct. White Sapphire Ring, 18K White Gold 3
4.07 Ct. White Sapphire Ring, 18K White Gold 4
4.07 Ct. Sapphire 18K White Gold ring
Item ID: 179843
$7,529
View Details
1.02 Ct. Greyish Blue Sapphire Ring, 18K White Gold 1
1.02 Ct. Greyish Blue Sapphire Ring, 18K White Gold 2
1.02 Ct. Greyish Blue Sapphire Ring, 18K White Gold 3
1.02 Ct. Greyish Blue Sapphire Ring, 18K White Gold 4
1.02 Ct. Sapphire 18K White Gold ring
Item ID: 187415
$3,337
View Details
1.44 Ct. Bluish Green Sapphire Ring, 18K White Gold 1
1.44 Ct. Bluish Green Sapphire Ring, 18K White Gold 2
1.44 Ct. Bluish Green Sapphire Ring, 18K White Gold 3
1.44 Ct. Bluish Green Sapphire Ring, 18K White Gold 4
1.44 Ct. Sapphire 18K White Gold ring
Item ID: 119792
$4,081
View Details
1.07 Ct. Green Sapphire Ring, 18K White Gold 1
1.07 Ct. Green Sapphire Ring, 18K White Gold 2
1.07 Ct. Green Sapphire Ring, 18K White Gold 3
1.07 Ct. Green Sapphire Ring, 18K White Gold 4
1.07 Ct. Sapphire 18K White Gold ring
Item ID: 138315
$3,569
View Details
2.00 Ct. Blue Sapphire Ring, 18K White Gold 1
2.00 Ct. Blue Sapphire Ring, 18K White Gold 2
2.00 Ct. Blue Sapphire Ring, 18K White Gold 3
2.00 Ct. Blue Sapphire Ring, 18K White Gold 4
2.00 Ct. Sapphire 18K White Gold ring
Item ID: 191695
$4,061
View Details
2.83 Ct. Padparadscha Sapphire Ring, 18K White Gold 1
2.83 Ct. Padparadscha Sapphire Ring, 18K White Gold 2
2.83 Ct. Padparadscha Sapphire Ring, 18K White Gold 3
2.83 Ct. Padparadscha Sapphire Ring, 18K White Gold 4
2.83 Ct. Sapphire 18K White Gold ring
Item ID: 150678
$20,510
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: 158037
$6,559
View Details
2.55 Ct. Blue Sapphire Ring, 18K White Gold 1
2.55 Ct. Blue Sapphire Ring, 18K White Gold 2
2.55 Ct. Blue Sapphire Ring, 18K White Gold 3
2.55 Ct. Blue Sapphire Ring, 18K White Gold 4
2.55 Ct. Sapphire 18K White Gold ring
Item ID: 194469
$15,726
View Details
4.06 Ct. Green Sapphire Ring, 18K White Gold 1
4.06 Ct. Green Sapphire Ring, 18K White Gold 2
4.06 Ct. Green Sapphire Ring, 18K White Gold 3
4.06 Ct. Green Sapphire Ring, 18K White Gold 4
4.06 Ct. Sapphire 18K White Gold ring
Item ID: 142930
$8,694
View Details
2.03 Ct. Padparadscha Sapphire Ring, 18K White Gold 1
2.03 Ct. Padparadscha Sapphire Ring, 18K White Gold 2
2.03 Ct. Padparadscha Sapphire Ring, 18K White Gold 3
2.03 Ct. Padparadscha Sapphire Ring, 18K White Gold 4
2.03 Ct. Sapphire 18K White Gold ring
Item ID: 144655
$11,196
View Details
1.17 Ct. Padparadscha Sapphire Ring, 18K White Gold 1
1.17 Ct. Padparadscha Sapphire Ring, 18K White Gold 2
1.17 Ct. Padparadscha Sapphire Ring, 18K White Gold 3
1.17 Ct. Padparadscha Sapphire Ring, 18K White Gold 4
1.17 Ct. Sapphire 18K White Gold ring
Item ID: 195671
$4,500
View Details
1.18 Ct. Padparadscha Sapphire Ring, 18K White Gold 1
1.18 Ct. Padparadscha Sapphire Ring, 18K White Gold 2
1.18 Ct. Padparadscha Sapphire Ring, 18K White Gold 3
1.18 Ct. Padparadscha Sapphire Ring, 18K White Gold 4
1.18 Ct. Sapphire 18K White Gold ring
Item ID: 180445
$4,511
View Details
3.10 Ct. Purple Sapphire Ring, 18K White Gold 1
3.10 Ct. Purple Sapphire Ring, 18K White Gold 2
3.10 Ct. Purple Sapphire Ring, 18K White Gold 3
3.10 Ct. Purple Sapphire Ring, 18K White Gold 4
3.10 Ct. Sapphire 18K White Gold ring
Item ID: 182825
$11,678
View Details
0.88 Ct. Pink Sapphire Ring, 18K White Gold 1
0.88 Ct. Pink Sapphire Ring, 18K White Gold 2
0.88 Ct. Pink Sapphire Ring, 18K White Gold 3
0.88 Ct. Pink Sapphire Ring, 18K White Gold 4
0.88 Ct. Sapphire 18K White Gold ring
Item ID: 146504
$2,533
View Details
1.45 Ct. Bi Color Sapphire Ring, 18K White Gold 1
1.45 Ct. Bi Color Sapphire Ring, 18K White Gold 2
1.45 Ct. Bi Color Sapphire Ring, 18K White Gold 3
1.45 Ct. Bi Color Sapphire Ring, 18K White Gold 4
1.45 Ct. Sapphire 18K White Gold ring
Item ID: 144821
$2,708
View Details
2.17 Ct. Greenish Blue Sapphire Ring, 18K White Gold 1
2.17 Ct. Greenish Blue Sapphire Ring, 18K White Gold 2
2.17 Ct. Greenish Blue Sapphire Ring, 18K White Gold 3
2.17 Ct. Greenish Blue Sapphire Ring, 18K White Gold 4
2.17 Ct. Sapphire 18K White Gold ring
Item ID: 187349
$7,197
View Details
0.42 Ct. Blue Sapphire Ring, 18K White Gold 1
0.42 Ct. Blue Sapphire Ring, 18K White Gold 2
0.42 Ct. Blue Sapphire Ring, 18K White Gold 3
0.42 Ct. Blue Sapphire Ring, 18K White Gold 4
0.42 Ct. Sapphire 18K White Gold ring
Item ID: 183729
$1,703
View Details
1.69 Ct. Greenish Blue Sapphire Ring, 18K White Gold 1
1.69 Ct. Greenish Blue Sapphire Ring, 18K White Gold 2
1.69 Ct. Greenish Blue Sapphire Ring, 18K White Gold 3
1.69 Ct. Greenish Blue Sapphire Ring, 18K White Gold 4
1.69 Ct. Sapphire 18K White Gold ring
Item ID: 193362
$5,765
View Details
4.04 Ct. Purplish Pink Sapphire Ring, 18K White Gold 1
4.04 Ct. Purplish Pink Sapphire Ring, 18K White Gold 2
4.04 Ct. Purplish Pink Sapphire Ring, 18K White Gold 3
4.04 Ct. Purplish Pink Sapphire Ring, 18K White Gold 4
4.04 Ct. Sapphire 18K White Gold ring
Item ID: 172357
$24,408
View Details
3.00 Ct. Bluish Green Sapphire Ring, 18K White Gold 1
3.00 Ct. Bluish Green Sapphire Ring, 18K White Gold 2
3.00 Ct. Bluish Green Sapphire Ring, 18K White Gold 3
3.00 Ct. Bluish Green Sapphire Ring, 18K White Gold 4
3.00 Ct. Sapphire 18K White Gold ring
Item ID: 193596
$6,994
View Details
3.09 Ct. Blue Sapphire Ring, 18K White Gold 1
3.09 Ct. Blue Sapphire Ring, 18K White Gold 2
3.09 Ct. Blue Sapphire Ring, 18K White Gold 3
3.09 Ct. Blue Sapphire Ring, 18K White Gold 4
3.09 Ct. Sapphire 18K White Gold ring
Item ID: 184259
$11,875
View Details
1.81 Ct. Blue Sapphire Ring, 18K White Gold 1
1.81 Ct. Blue Sapphire Ring, 18K White Gold 2
1.81 Ct. Blue Sapphire Ring, 18K White Gold 3
1.81 Ct. Blue Sapphire Ring, 18K White Gold 4
1.81 Ct. Sapphire 18K White Gold ring
Item ID: 155489
$5,623
View Details
1.39 Ct. Bluish Purple Sapphire Ring, 18K White Gold 1
1.39 Ct. Bluish Purple Sapphire Ring, 18K White Gold 2
1.39 Ct. Bluish Purple Sapphire Ring, 18K White Gold 3
1.39 Ct. Bluish Purple Sapphire Ring, 18K White Gold 4
1.39 Ct. Sapphire 18K White Gold ring
Item ID: 114284
$3,775
View Details
1.81 Ct. Blue Sapphire Ring, 18K White Gold 1
1.81 Ct. Blue Sapphire Ring, 18K White Gold 2
1.81 Ct. Blue Sapphire Ring, 18K White Gold 3
1.81 Ct. Blue Sapphire Ring, 18K White Gold 4
1.81 Ct. Sapphire 18K White Gold ring
Item ID: 71760
$5,813
View Details
3.08 Ct. Blue Sapphire Ring, 18K White Gold 1
3.08 Ct. Blue Sapphire Ring, 18K White Gold 2
3.08 Ct. Blue Sapphire Ring, 18K White Gold 3
3.08 Ct. Blue Sapphire Ring, 18K White Gold 4
3.08 Ct. Sapphire 18K White Gold ring
Item ID: 112695
$15,473
View Details
1.58 Ct. Padparadscha Sapphire Ring, 18K White Gold 1
1.58 Ct. Padparadscha Sapphire Ring, 18K White Gold 2
1.58 Ct. Padparadscha Sapphire Ring, 18K White Gold 3
1.58 Ct. Padparadscha Sapphire Ring, 18K White Gold 4
1.58 Ct. Sapphire 18K White Gold ring
Item ID: 96598
$7,078
View Details
0.92 Ct. White Sapphire Ring, 18K White Gold 1
0.92 Ct. White Sapphire Ring, 18K White Gold 2
0.92 Ct. White Sapphire Ring, 18K White Gold 3
0.92 Ct. White Sapphire Ring, 18K White Gold 4
0.92 Ct. Sapphire 18K White Gold ring
Item ID: 147685
$2,913
View Details
4.07 Ct. White Sapphire Ring, 18K White Gold 1
4.07 Ct. White Sapphire Ring, 18K White Gold 2
4.07 Ct. White Sapphire Ring, 18K White Gold 3
4.07 Ct. White Sapphire Ring, 18K White Gold 4
4.07 Ct. Sapphire 18K White Gold ring
Item ID: 167137
$9,645
View Details
1.18 Ct. Peach Sapphire Ring, 18K White Gold 1
1.18 Ct. Peach Sapphire Ring, 18K White Gold 2
1.18 Ct. Peach Sapphire Ring, 18K White Gold 3
1.18 Ct. Peach Sapphire Ring, 18K White Gold 4
1.18 Ct. Sapphire 18K White Gold ring
Item ID: 119911
$2,227
View Details
3.30 Ct. Blue Sapphire Ring, 18K White Gold 1
3.30 Ct. Blue Sapphire Ring, 18K White Gold 2
3.30 Ct. Blue Sapphire Ring, 18K White Gold 3
3.30 Ct. Blue Sapphire Ring, 18K White Gold 4
3.30 Ct. Sapphire 18K White Gold ring
Item ID: 70675
$11,459
View Details
1.35 Ct. Pink Sapphire Ring, 18K White Gold 1
1.35 Ct. Pink Sapphire Ring, 18K White Gold 2
1.35 Ct. Pink Sapphire Ring, 18K White Gold 3
1.35 Ct. Pink Sapphire Ring, 18K White Gold 4
1.35 Ct. Sapphire 18K White Gold ring
Item ID: 187104
$2,996
View Details
1.52 Ct. Blue Sapphire Ring, 18K White Gold 1
1.52 Ct. Blue Sapphire Ring, 18K White Gold 2
1.52 Ct. Blue Sapphire Ring, 18K White Gold 3
1.52 Ct. Blue Sapphire Ring, 18K White Gold 4
1.52 Ct. Sapphire 18K White Gold ring
Item ID: 195451
$4,268
View Details
1.37 Ct. Purple Sapphire Ring, 18K White Gold 1
1.37 Ct. Purple Sapphire Ring, 18K White Gold 2
1.37 Ct. Purple Sapphire Ring, 18K White Gold 3
1.37 Ct. Purple Sapphire Ring, 18K White Gold 4
1.37 Ct. Sapphire 18K White Gold ring
Item ID: 176890
$3,613
View Details
2.21 Ct. Pink Sapphire Ring, 18K White Gold 1
2.21 Ct. Pink Sapphire Ring, 18K White Gold 2
2.21 Ct. Pink Sapphire Ring, 18K White Gold 3
2.21 Ct. Pink Sapphire Ring, 18K White Gold 4
2.21 Ct. Sapphire 18K White Gold ring
Item ID: 87018
$7,384
View Details
1.53 Ct. Yellow Sapphire Ring, 18K White Gold 1
1.53 Ct. Yellow Sapphire Ring, 18K White Gold 2
1.53 Ct. Yellow Sapphire Ring, 18K White Gold 3
1.53 Ct. Yellow Sapphire Ring, 18K White Gold 4
1.53 Ct. Sapphire 18K White Gold ring
Item ID: 146800
$3,813
View Details
0.82 Ct. Yellowish Green Sapphire Ring, 18K White Gold 1
0.82 Ct. Yellowish Green Sapphire Ring, 18K White Gold 2
0.82 Ct. Yellowish Green Sapphire Ring, 18K White Gold 3
0.82 Ct. Yellowish Green Sapphire Ring, 18K White Gold 4
0.82 Ct. Sapphire 18K White Gold ring
Item ID: 195272
$2,512
View Details
1.18 Ct. Padparadscha Sapphire Ring, 18K White Gold 1
1.18 Ct. Padparadscha Sapphire Ring, 18K White Gold 2
1.18 Ct. Padparadscha Sapphire Ring, 18K White Gold 3
1.18 Ct. Padparadscha Sapphire Ring, 18K White Gold 4
1.18 Ct. Sapphire 18K White Gold ring
Item ID: 184378
$4,657
View Details
1.36 Ct. Blue Sapphire Ring, 18K White Gold 1
1.36 Ct. Blue Sapphire Ring, 18K White Gold 2
1.36 Ct. Blue Sapphire Ring, 18K White Gold 3
1.36 Ct. Blue Sapphire Ring, 18K White Gold 4
1.36 Ct. Sapphire 18K White Gold ring
Item ID: 187324
$4,408
View Details
1.62 Ct. Purple Sapphire Ring, 18K White Gold 1
1.62 Ct. Purple Sapphire Ring, 18K White Gold 2
1.62 Ct. Purple Sapphire Ring, 18K White Gold 3
1.62 Ct. Purple Sapphire Ring, 18K White Gold 4
1.62 Ct. Sapphire 18K White Gold ring
Item ID: 166336
$5,015
View Details
0.69 Ct. Pink Sapphire Ring, 18K White Gold 1
0.69 Ct. Pink Sapphire Ring, 18K White Gold 2
0.69 Ct. Pink Sapphire Ring, 18K White Gold 3
0.69 Ct. Pink Sapphire Ring, 18K White Gold 4
0.69 Ct. Sapphire 18K White Gold ring
Item ID: 97470
$3,503
View Details
1.59 Ct. White Sapphire Ring, 18K White Gold 1
1.59 Ct. White Sapphire Ring, 18K White Gold 2
1.59 Ct. White Sapphire Ring, 18K White Gold 3
1.59 Ct. White Sapphire Ring, 18K White Gold 4
1.59 Ct. Sapphire 18K White Gold ring
Item ID: 178048
$3,264
View Details
2.03 Ct. Pinkish Purple Sapphire Ring, 18K White Gold 1
2.03 Ct. Pinkish Purple Sapphire Ring, 18K White Gold 2
2.03 Ct. Pinkish Purple Sapphire Ring, 18K White Gold 3
2.03 Ct. Pinkish Purple Sapphire Ring, 18K White Gold 4
2.03 Ct. Sapphire 18K White Gold ring
Item ID: 150398
$6,542
View Details
2.01 Ct. Greenish Blue Sapphire Ring, 18K White Gold 1
2.01 Ct. Greenish Blue Sapphire Ring, 18K White Gold 2
2.01 Ct. Greenish Blue Sapphire Ring, 18K White Gold 3
2.01 Ct. Greenish Blue Sapphire Ring, 18K White Gold 4
2.01 Ct. Sapphire 18K White Gold ring
Item ID: 127124
$6,286
View Details
0.90 Ct. Green Sapphire Ring, 18K White Gold 1
0.90 Ct. Green Sapphire Ring, 18K White Gold 2
0.90 Ct. Green Sapphire Ring, 18K White Gold 3
0.90 Ct. Green Sapphire Ring, 18K White Gold 4
0.90 Ct. Sapphire 18K White Gold ring
Item ID: 196360
$2,036
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: 194356
$4,267
View Details
1
...
137138139140141142143
...
555

Our Customers Love Us

See what people are saying on Google and Verified Reviews