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

All Sapphire Engagement Rings

Whether you are looking a classic solitaire, a diamond halo design, or a more modern bezel set piece, you'll find the perfect sapphire engagement ring in our collection. We offer sapphire engagement rings in a bevy of colors including blue, pink, and yellow, and a vast array of designs. Each one of our rings is expertly crafted and produced in our workshop. Interested in creating a custom designed ring? Browse our engagement ring settings to get started!

Filters 
Color
Design style
Metal
Carat
Center Stone Shape
Color intensity
Enhancement
Price
Origin
Clarity
Cutting style
Certificate type
Availability
32761 results
Change view:
Sort by:
Select
Change view:
1.26 Ct. Purple Sapphire Ring, 18K White Gold 1
1.26 Ct. Purple Sapphire Ring, 18K White Gold 2
1.26 Ct. Purple Sapphire Ring, 18K White Gold 3
1.26 Ct. Purple Sapphire Ring, 18K White Gold 4
1.26 Ct. Sapphire 18K White Gold ring
Item ID: 192016
$6,040
View Details
0.73 Ct. Blue Sapphire Ring, 18K White Gold 1
0.73 Ct. Blue Sapphire Ring, 18K White Gold 2
0.73 Ct. Blue Sapphire Ring, 18K White Gold 3
0.73 Ct. Blue Sapphire Ring, 18K White Gold 4
0.73 Ct. Sapphire 18K White Gold ring
Item ID: 137108
$3,332
View Details
1.14 Ct. Padparadscha Sapphire Ring, 18K White Gold 1
1.14 Ct. Padparadscha Sapphire Ring, 18K White Gold 2
1.14 Ct. Padparadscha Sapphire Ring, 18K White Gold 3
1.14 Ct. Padparadscha Sapphire Ring, 18K White Gold 4
1.14 Ct. Sapphire 18K White Gold ring
Item ID: 176197
$6,837
View Details
0.70 Ct. Blue Sapphire Ring, 18K White Gold 1
0.70 Ct. Blue Sapphire Ring, 18K White Gold 2
0.70 Ct. Blue Sapphire Ring, 18K White Gold 3
0.70 Ct. Blue Sapphire Ring, 18K White Gold 4
0.70 Ct. Sapphire 18K White Gold ring
Item ID: 100482
$2,637
View Details
5.01 Ct. Blue Sapphire Ring, 18K White Gold 1
5.01 Ct. Blue Sapphire Ring, 18K White Gold 2
5.01 Ct. Blue Sapphire Ring, 18K White Gold 3
5.01 Ct. Blue Sapphire Ring, 18K White Gold 4
5.01 Ct. Sapphire 18K White Gold ring
Item ID: 195981
$10,546
View Details
0.70 Ct. Blue Sapphire Ring, 18K White Gold 1
0.70 Ct. Blue Sapphire Ring, 18K White Gold 2
0.70 Ct. Blue Sapphire Ring, 18K White Gold 3
0.70 Ct. Blue Sapphire Ring, 18K White Gold 4
0.70 Ct. Sapphire 18K White Gold ring
Item ID: 150542
$3,083
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: 146268
$4,592
View Details
1.25 Ct. Pinkish Purple Sapphire Ring, 18K White Gold 1
1.25 Ct. Pinkish Purple Sapphire Ring, 18K White Gold 2
1.25 Ct. Pinkish Purple Sapphire Ring, 18K White Gold 3
1.25 Ct. Pinkish Purple Sapphire Ring, 18K White Gold 4
1.25 Ct. Sapphire 18K White Gold ring
Item ID: 197998
$2,110
View Details
9.01 Ct. Blue Sapphire Ring, 18K White Gold 1
9.01 Ct. Blue Sapphire Ring, 18K White Gold 2
9.01 Ct. Blue Sapphire Ring, 18K White Gold 3
9.01 Ct. Blue Sapphire Ring, 18K White Gold 4
9.01 Ct. Sapphire 18K White Gold ring
Item ID: 194656
$52,554
View Details
2.22 Ct. Bluish Green Sapphire Ring, 18K White Gold 1
2.22 Ct. Bluish Green Sapphire Ring, 18K White Gold 2
2.22 Ct. Bluish Green Sapphire Ring, 18K White Gold 3
2.22 Ct. Bluish Green Sapphire Ring, 18K White Gold 4
2.22 Ct. Sapphire 18K White Gold ring
Item ID: 197489
$4,599
View Details
2.14 Ct. Bi Color Sapphire Ring, 18K White Gold 1
2.14 Ct. Bi Color Sapphire Ring, 18K White Gold 2
2.14 Ct. Bi Color Sapphire Ring, 18K White Gold 3
2.14 Ct. Bi Color Sapphire Ring, 18K White Gold 4
2.14 Ct. Sapphire 18K White Gold ring
Item ID: 186568
$2,898
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: 155067
$12,719
View Details
2.86 Ct. Bluish Green Sapphire Ring, 18K White Gold 1
2.86 Ct. Bluish Green Sapphire Ring, 18K White Gold 2
2.86 Ct. Bluish Green Sapphire Ring, 18K White Gold 3
2.86 Ct. Bluish Green Sapphire Ring, 18K White Gold 4
2.86 Ct. Sapphire 18K White Gold ring
Item ID: 196230
$3,499
View Details
4.06 Ct. Blue Sapphire Ring, 18K White Gold 1
4.06 Ct. Blue Sapphire Ring, 18K White Gold 2
4.06 Ct. Blue Sapphire Ring, 18K White Gold 3
4.06 Ct. Blue Sapphire Ring, 18K White Gold 4
4.06 Ct. Sapphire 18K White Gold ring
Item ID: 160721
$8,826
View Details
1.06 Ct. Greyish Blue Sapphire Ring, 18K White Gold 1
1.06 Ct. Greyish Blue Sapphire Ring, 18K White Gold 2
1.06 Ct. Greyish Blue Sapphire Ring, 18K White Gold 3
1.06 Ct. Greyish Blue Sapphire Ring, 18K White Gold 4
1.06 Ct. Sapphire 18K White Gold ring
Item ID: 121796
$4,563
View Details
4.06 Ct. Blue Sapphire Ring, 18K White Gold 1
4.06 Ct. Blue Sapphire Ring, 18K White Gold 2
4.06 Ct. Blue Sapphire Ring, 18K White Gold 3
4.06 Ct. Blue Sapphire Ring, 18K White Gold 4
4.06 Ct. Sapphire 18K White Gold ring
Item ID: 160725
$9,384
View Details
2.83 Ct. Greyish Blue Sapphire Ring, 18K White Gold 1
2.83 Ct. Greyish Blue Sapphire Ring, 18K White Gold 2
2.83 Ct. Greyish Blue Sapphire Ring, 18K White Gold 3
2.83 Ct. Greyish Blue Sapphire Ring, 18K White Gold 4
2.83 Ct. Sapphire 18K White Gold ring
Item ID: 177924
$4,314
View Details
1.47 Ct. Blue Sapphire Ring, 18K White Gold 1
1.47 Ct. Blue Sapphire Ring, 18K White Gold 2
1.47 Ct. Blue Sapphire Ring, 18K White Gold 3
1.47 Ct. Blue Sapphire Ring, 18K White Gold 4
1.47 Ct. Sapphire 18K White Gold ring
Item ID: 183309
$2,357
View Details
2.00 Ct. Bi Color Sapphire Ring, 18K White Gold 1
2.00 Ct. Bi Color Sapphire Ring, 18K White Gold 2
2.00 Ct. Bi Color Sapphire Ring, 18K White Gold 3
2.00 Ct. Bi Color Sapphire Ring, 18K White Gold 4
2.00 Ct. Sapphire 18K White Gold ring
Item ID: 187909
$3,831
View Details
5.68 Ct. Violet Sapphire Ring, 18K White Gold 1
5.68 Ct. Violet Sapphire Ring, 18K White Gold 2
5.68 Ct. Violet Sapphire Ring, 18K White Gold 3
5.68 Ct. Violet Sapphire Ring, 18K White Gold 4
5.68 Ct. Sapphire 18K White Gold ring
Item ID: 194985
$13,392
View Details
1.06 Ct. Greyish Blue Sapphire Ring, 18K White Gold 1
1.06 Ct. Greyish Blue Sapphire Ring, 18K White Gold 2
1.06 Ct. Greyish Blue Sapphire Ring, 18K White Gold 3
1.06 Ct. Greyish Blue Sapphire Ring, 18K White Gold 4
1.06 Ct. Sapphire 18K White Gold ring
Item ID: 128155
$3,299
View Details
1.03 Ct. Orange Sapphire Ring, 18K White Gold 1
1.03 Ct. Orange Sapphire Ring, 18K White Gold 2
1.03 Ct. Orange Sapphire Ring, 18K White Gold 3
1.03 Ct. Orange Sapphire Ring, 18K White Gold 4
1.03 Ct. Sapphire 18K White Gold ring
Item ID: 94078
$2,847
View Details
2.01 Ct. Pink Sapphire Ring, 18K White Gold 1
2.01 Ct. Pink Sapphire Ring, 18K White Gold 2
2.01 Ct. Pink Sapphire Ring, 18K White Gold 3
2.01 Ct. Pink Sapphire Ring, 18K White Gold 4
2.01 Ct. Sapphire 18K White Gold ring
Item ID: 105140
$6,081
View Details
1.93 Ct. Blue Sapphire Ring, 18K White Gold 1
1.93 Ct. Blue Sapphire Ring, 18K White Gold 2
1.93 Ct. Blue Sapphire Ring, 18K White Gold 3
1.93 Ct. Blue Sapphire Ring, 18K White Gold 4
1.93 Ct. Sapphire 18K White Gold ring
Item ID: 193848
$6,536
View Details
4.16 Ct. Color Change Sapphire Ring, 18K White Gold 1
4.16 Ct. Color Change Sapphire Ring, 18K White Gold 2
4.16 Ct. Color Change Sapphire Ring, 18K White Gold 3
4.16 Ct. Color Change Sapphire Ring, 18K White Gold 4
4.16 Ct. Sapphire 18K White Gold ring
Item ID: 127049
$7,574
View Details
3.10 Ct. Yellow Sapphire Ring, 18K White Gold 1
3.10 Ct. Yellow Sapphire Ring, 18K White Gold 2
3.10 Ct. Yellow Sapphire Ring, 18K White Gold 3
3.10 Ct. Yellow Sapphire Ring, 18K White Gold 4
3.10 Ct. Sapphire 18K White Gold ring
Item ID: 175298
$6,869
View Details
2.52 Ct. Greenish Blue Sapphire Ring, 18K White Gold 1
2.52 Ct. Greenish Blue Sapphire Ring, 18K White Gold 2
2.52 Ct. Greenish Blue Sapphire Ring, 18K White Gold 3
2.52 Ct. Greenish Blue Sapphire Ring, 18K White Gold 4
2.52 Ct. Sapphire 18K White Gold ring
Item ID: 183459
$6,814
View Details
1.25 Ct. Greenish Blue Sapphire Ring, 18K White Gold 1
1.25 Ct. Greenish Blue Sapphire Ring, 18K White Gold 2
1.25 Ct. Greenish Blue Sapphire Ring, 18K White Gold 3
1.25 Ct. Greenish Blue Sapphire Ring, 18K White Gold 4
1.25 Ct. Sapphire 18K White Gold ring
Item ID: 197920
$3,201
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: 114889
$9,759
View Details
4.01 Ct. Yellow Sapphire Ring, 18K White Gold 1
4.01 Ct. Yellow Sapphire Ring, 18K White Gold 2
4.01 Ct. Yellow Sapphire Ring, 18K White Gold 3
4.01 Ct. Yellow Sapphire Ring, 18K White Gold 4
4.01 Ct. Sapphire 18K White Gold ring
Item ID: 178164
$9,088
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: 84539
$10,149
View Details
3.67 Ct. Bi Color Sapphire Ring, 18K White Gold 1
3.67 Ct. Bi Color Sapphire Ring, 18K White Gold 2
3.67 Ct. Bi Color Sapphire Ring, 18K White Gold 3
3.67 Ct. Bi Color Sapphire Ring, 18K White Gold 4
3.67 Ct. Sapphire 18K White Gold ring
Item ID: 175912
$8,797
View Details
1.30 Ct. Blue Sapphire Ring, 18K White Gold 1
1.30 Ct. Blue Sapphire Ring, 18K White Gold 2
1.30 Ct. Blue Sapphire Ring, 18K White Gold 3
1.30 Ct. Blue Sapphire Ring, 18K White Gold 4
1.30 Ct. Sapphire 18K White Gold ring
Item ID: 180406
$4,279
View Details
0.63 Ct. Yellow Sapphire Ring, 18K White Gold 1
0.63 Ct. Yellow Sapphire Ring, 18K White Gold 2
0.63 Ct. Yellow Sapphire Ring, 18K White Gold 3
0.63 Ct. Yellow Sapphire Ring, 18K White Gold 4
0.63 Ct. Sapphire 18K White Gold ring
Item ID: 127896
$2,949
View Details
1.00 Ct. Color Change Sapphire Ring, 18K White Gold 1
1.00 Ct. Color Change Sapphire Ring, 18K White Gold 2
1.00 Ct. Color Change Sapphire Ring, 18K White Gold 3
1.00 Ct. Color Change Sapphire Ring, 18K White Gold 4
1.00 Ct. Sapphire 18K White Gold ring
Item ID: 174339
$3,913
View Details
3.55 Ct. Purple Sapphire Ring, 18K White Gold 1
3.55 Ct. Purple Sapphire Ring, 18K White Gold 2
3.55 Ct. Purple Sapphire Ring, 18K White Gold 3
3.55 Ct. Purple Sapphire Ring, 18K White Gold 4
3.55 Ct. Sapphire 18K White Gold ring
Item ID: 153334
$10,360
View Details
4.00 Ct. Yellow Sapphire Ring, 18K White Gold 1
4.00 Ct. Yellow Sapphire Ring, 18K White Gold 2
4.00 Ct. Yellow Sapphire Ring, 18K White Gold 3
4.00 Ct. Yellow Sapphire Ring, 18K White Gold 4
4.00 Ct. Sapphire 18K White Gold ring
Item ID: 162350
$9,134
View Details
0.94 Ct. Grey Sapphire Ring, 18K White Gold 1
0.94 Ct. Grey Sapphire Ring, 18K White Gold 2
0.94 Ct. Grey Sapphire Ring, 18K White Gold 3
0.94 Ct. Grey Sapphire Ring, 18K White Gold 4
0.94 Ct. Sapphire 18K White Gold ring
Item ID: 155889
$2,656
View Details
2.04 Ct. Blue Sapphire Ring, 18K White Gold 1
2.04 Ct. Blue Sapphire Ring, 18K White Gold 2
2.04 Ct. Blue Sapphire Ring, 18K White Gold 3
2.04 Ct. Blue Sapphire Ring, 18K White Gold 4
2.04 Ct. Sapphire 18K White Gold ring
Item ID: 114269
$5,712
View Details
3.55 Ct. Purple Sapphire Ring, 18K White Gold 1
3.55 Ct. Purple Sapphire Ring, 18K White Gold 2
3.55 Ct. Purple Sapphire Ring, 18K White Gold 3
3.55 Ct. Purple Sapphire Ring, 18K White Gold 4
3.55 Ct. Sapphire 18K White Gold ring
Item ID: 125591
$10,866
View Details
2.96 Ct. Blue Sapphire Ring, 18K White Gold 1
2.96 Ct. Blue Sapphire Ring, 18K White Gold 2
2.96 Ct. Blue Sapphire Ring, 18K White Gold 3
2.96 Ct. Blue Sapphire Ring, 18K White Gold 4
2.96 Ct. Sapphire 18K White Gold ring
Item ID: 81328
$50,165
View Details
2.25 Ct. Blue Sapphire Ring, 18K White Gold 1
2.25 Ct. Blue Sapphire Ring, 18K White Gold 2
2.25 Ct. Blue Sapphire Ring, 18K White Gold 3
2.25 Ct. Blue Sapphire Ring, 18K White Gold 4
2.25 Ct. Sapphire 18K White Gold ring
Item ID: 175354
$11,144
View Details
0.58 Ct. Blue Sapphire Ring, 18K White Gold 1
0.58 Ct. Blue Sapphire Ring, 18K White Gold 2
0.58 Ct. Blue Sapphire Ring, 18K White Gold 3
0.58 Ct. Blue Sapphire Ring, 18K White Gold 4
0.58 Ct. Sapphire 18K White Gold ring
Item ID: 179684
$1,936
View Details
2.04 Ct. Blue Sapphire Ring, 18K White Gold 1
2.04 Ct. Blue Sapphire Ring, 18K White Gold 2
2.04 Ct. Blue Sapphire Ring, 18K White Gold 3
2.04 Ct. Blue Sapphire Ring, 18K White Gold 4
2.04 Ct. Sapphire 18K White Gold ring
Item ID: 189845
$6,804
View Details
1.73 Ct. Pink Sapphire Ring, 18K White Gold 1
1.73 Ct. Pink Sapphire Ring, 18K White Gold 2
1.73 Ct. Pink Sapphire Ring, 18K White Gold 3
1.73 Ct. Pink Sapphire Ring, 18K White Gold 4
1.73 Ct. Sapphire 18K White Gold ring
Item ID: 187287
$3,598
View Details
6.15 Ct. Pink Sapphire Ring, 18K White Gold 1
6.15 Ct. Pink Sapphire Ring, 18K White Gold 2
6.15 Ct. Pink Sapphire Ring, 18K White Gold 3
6.15 Ct. Pink Sapphire Ring, 18K White Gold 4
6.15 Ct. Sapphire 18K White Gold ring
Item ID: 198301
$57,913
View Details
1.55 Ct. White Sapphire Ring, 18K White Gold 1
1.55 Ct. White Sapphire Ring, 18K White Gold 2
1.55 Ct. White Sapphire Ring, 18K White Gold 3
1.55 Ct. White Sapphire Ring, 18K White Gold 4
1.55 Ct. Sapphire 18K White Gold ring
Item ID: 196419
$4,432
View Details
3.56 Ct. Green Sapphire Ring, 18K White Gold 1
3.56 Ct. Green Sapphire Ring, 18K White Gold 2
3.56 Ct. Green Sapphire Ring, 18K White Gold 3
3.56 Ct. Green Sapphire Ring, 18K White Gold 4
3.56 Ct. Sapphire 18K White Gold ring
Item ID: 148581
$7,379
View Details
4.54 Ct. Yellowish Brown Sapphire Ring, 18K White Gold 1
4.54 Ct. Yellowish Brown Sapphire Ring, 18K White Gold 2
4.54 Ct. Yellowish Brown Sapphire Ring, 18K White Gold 3
4.54 Ct. Yellowish Brown Sapphire Ring, 18K White Gold 4
4.54 Ct. Sapphire 18K White Gold ring
Item ID: 142571
$7,848
View Details
3.56 Ct. Green Sapphire Ring, 18K White Gold 1
3.56 Ct. Green Sapphire Ring, 18K White Gold 2
3.56 Ct. Green Sapphire Ring, 18K White Gold 3
3.56 Ct. Green Sapphire Ring, 18K White Gold 4
3.56 Ct. Sapphire 18K White Gold ring
Item ID: 164088
$8,425
View Details
0.60 Ct. Purplish Pink Sapphire Ring, 18K White Gold 1
0.60 Ct. Purplish Pink Sapphire Ring, 18K White Gold 2
0.60 Ct. Purplish Pink Sapphire Ring, 18K White Gold 3
0.60 Ct. Purplish Pink Sapphire Ring, 18K White Gold 4
0.60 Ct. Sapphire 18K White Gold ring
Item ID: 142069
$2,207
View Details
0.73 Ct. Purple Sapphire Ring, 18K White Gold 1
0.73 Ct. Purple Sapphire Ring, 18K White Gold 2
0.73 Ct. Purple Sapphire Ring, 18K White Gold 3
0.73 Ct. Purple Sapphire Ring, 18K White Gold 4
0.73 Ct. Sapphire 18K White Gold ring
Item ID: 180447
$3,403
View Details
20.15 Ct. Purple Sapphire Ring, 18K White Gold 1
20.15 Ct. Purple Sapphire Ring, 18K White Gold 2
20.15 Ct. Purple Sapphire Ring, 18K White Gold 3
20.15 Ct. Purple Sapphire Ring, 18K White Gold 4
20.15 Ct. Sapphire 18K White Gold ring
Item ID: 180587
$191,724
View Details
0.73 Ct. Purple Sapphire Ring, 18K White Gold 1
0.73 Ct. Purple Sapphire Ring, 18K White Gold 2
0.73 Ct. Purple Sapphire Ring, 18K White Gold 3
0.73 Ct. Purple Sapphire Ring, 18K White Gold 4
0.73 Ct. Sapphire 18K White Gold ring
Item ID: 180372
$2,285
View Details
2.66 Ct. Pink Sapphire Ring, 18K White Gold 1
2.66 Ct. Pink Sapphire Ring, 18K White Gold 2
2.66 Ct. Pink Sapphire Ring, 18K White Gold 3
2.66 Ct. Pink Sapphire Ring, 18K White Gold 4
2.66 Ct. Sapphire 18K White Gold ring
Item ID: 196387
$11,201
View Details
2.01 Ct. Bluish Green Sapphire Ring, 18K White Gold 1
2.01 Ct. Bluish Green Sapphire Ring, 18K White Gold 2
2.01 Ct. Bluish Green Sapphire Ring, 18K White Gold 3
2.01 Ct. Bluish Green Sapphire Ring, 18K White Gold 4
2.01 Ct. Sapphire 18K White Gold ring
Item ID: 186549
$3,014
View Details
9.16 Ct. Blue Sapphire Ring, 18K White Gold 1
9.16 Ct. Blue Sapphire Ring, 18K White Gold 2
9.16 Ct. Blue Sapphire Ring, 18K White Gold 3
9.16 Ct. Blue Sapphire Ring, 18K White Gold 4
9.16 Ct. Sapphire 18K White Gold ring
Item ID: 190670
$165,132
View Details
2.03 Ct. Pink Sapphire Ring, 18K White Gold 1
2.03 Ct. Pink Sapphire Ring, 18K White Gold 2
2.03 Ct. Pink Sapphire Ring, 18K White Gold 3
2.03 Ct. Pink Sapphire Ring, 18K White Gold 4
2.03 Ct. Sapphire 18K White Gold ring
Item ID: 84303
$10,716
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: 197162
$3,448
View Details
1.20 Ct. Green Sapphire Ring, 18K White Gold 1
1.20 Ct. Green Sapphire Ring, 18K White Gold 2
1.20 Ct. Green Sapphire Ring, 18K White Gold 3
1.20 Ct. Green Sapphire Ring, 18K White Gold 4
1.20 Ct. Sapphire 18K White Gold ring
Item ID: 182637
$2,612
View Details
1
...
149150151152153154155
...
547

Our Customers Love Us

See what people are saying on Google and Verified Reviews