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
32756 results
Change view:
Sort by:
Select
Change view:
3.11 Ct. Blue Sapphire Ring, 18K White Gold 1
3.11 Ct. Blue Sapphire Ring, 18K White Gold 2
3.11 Ct. Blue Sapphire Ring, 18K White Gold 3
3.11 Ct. Blue Sapphire Ring, 18K White Gold 4
3.11 Ct. Sapphire 18K White Gold ring
Item ID: 196144
$13,839
View Details
0.83 Ct. Bluish Green Sapphire Ring, 18K White Gold 1
0.83 Ct. Bluish Green Sapphire Ring, 18K White Gold 2
0.83 Ct. Bluish Green Sapphire Ring, 18K White Gold 3
0.83 Ct. Bluish Green Sapphire Ring, 18K White Gold 4
0.83 Ct. Sapphire 18K White Gold ring
Item ID: 180854
$2,772
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
1.62 Ct. Bi Color Sapphire Ring, 18K White Gold 1
1.62 Ct. Bi Color Sapphire Ring, 18K White Gold 2
1.62 Ct. Bi Color Sapphire Ring, 18K White Gold 3
1.62 Ct. Bi Color Sapphire Ring, 18K White Gold 4
1.62 Ct. Sapphire 18K White Gold ring
Item ID: 180883
$3,799
View Details
2.54 Ct. Blue Sapphire Ring, 18K White Gold 1
2.54 Ct. Blue Sapphire Ring, 18K White Gold 2
2.54 Ct. Blue Sapphire Ring, 18K White Gold 3
2.54 Ct. Blue Sapphire Ring, 18K White Gold 4
2.54 Ct. Sapphire 18K White Gold ring
Item ID: 141526
$9,389
View Details
1.62 Ct. Bi Color Sapphire Ring, 18K White Gold 1
1.62 Ct. Bi Color Sapphire Ring, 18K White Gold 2
1.62 Ct. Bi Color Sapphire Ring, 18K White Gold 3
1.62 Ct. Bi Color Sapphire Ring, 18K White Gold 4
1.62 Ct. Sapphire 18K White Gold ring
Item ID: 187520
$3,291
View Details
0.79 Ct. Peach Sapphire Ring, 18K White Gold 1
0.79 Ct. Peach Sapphire Ring, 18K White Gold 2
0.79 Ct. Peach Sapphire Ring, 18K White Gold 3
0.79 Ct. Peach Sapphire Ring, 18K White Gold 4
0.79 Ct. Sapphire 18K White Gold ring
Item ID: 155239
$2,027
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: 185686
$2,138
View Details
5.06 Ct. Blue Sapphire Ring, 18K White Gold 1
5.06 Ct. Blue Sapphire Ring, 18K White Gold 2
5.06 Ct. Blue Sapphire Ring, 18K White Gold 3
5.06 Ct. Blue Sapphire Ring, 18K White Gold 4
5.06 Ct. Sapphire 18K White Gold ring
Item ID: 165423
$8,420
View Details
1.55 Ct. Color Change Sapphire Ring, 18K White Gold 1
1.55 Ct. Color Change Sapphire Ring, 18K White Gold 2
1.55 Ct. Color Change Sapphire Ring, 18K White Gold 3
1.55 Ct. Color Change Sapphire Ring, 18K White Gold 4
1.55 Ct. Sapphire 18K White Gold ring
Item ID: 190682
$4,069
View Details
1.41 Ct. Pink Sapphire Ring, 18K White Gold 1
1.41 Ct. Pink Sapphire Ring, 18K White Gold 2
1.41 Ct. Pink Sapphire Ring, 18K White Gold 3
1.41 Ct. Pink Sapphire Ring, 18K White Gold 4
1.41 Ct. Sapphire 18K White Gold ring
Item ID: 6628
$4,395
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: 182437
$2,708
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
1.52 Ct. Greenish Blue Sapphire Ring, 18K White Gold 1
1.52 Ct. Greenish Blue Sapphire Ring, 18K White Gold 2
1.52 Ct. Greenish Blue Sapphire Ring, 18K White Gold 3
1.52 Ct. Greenish Blue Sapphire Ring, 18K White Gold 4
1.52 Ct. Sapphire 18K White Gold ring
Item ID: 182108
$3,276
View Details
5.06 Ct. Blue Sapphire Ring, 18K White Gold 1
5.06 Ct. Blue Sapphire Ring, 18K White Gold 2
5.06 Ct. Blue Sapphire Ring, 18K White Gold 3
5.06 Ct. Blue Sapphire Ring, 18K White Gold 4
5.06 Ct. Sapphire 18K White Gold ring
Item ID: 177021
$8,247
View Details
0.92 Ct. Padparadscha Sapphire Ring, 18K White Gold 1
0.92 Ct. Padparadscha Sapphire Ring, 18K White Gold 2
0.92 Ct. Padparadscha Sapphire Ring, 18K White Gold 3
0.92 Ct. Padparadscha Sapphire Ring, 18K White Gold 4
0.92 Ct. Sapphire 18K White Gold ring
Item ID: 166883
$3,467
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: 109003
$13,581
View Details
0.80 Ct. Green Sapphire Ring, 18K White Gold 1
0.80 Ct. Green Sapphire Ring, 18K White Gold 2
0.80 Ct. Green Sapphire Ring, 18K White Gold 3
0.80 Ct. Green Sapphire Ring, 18K White Gold 4
0.80 Ct. Sapphire 18K White Gold ring
Item ID: 190912
$2,288
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: 191930
$4,231
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: 181839
$1,997
View Details
2.14 Ct. Blue Sapphire Ring, 18K White Gold 1
2.14 Ct. Blue Sapphire Ring, 18K White Gold 2
2.14 Ct. Blue Sapphire Ring, 18K White Gold 3
2.14 Ct. Blue Sapphire Ring, 18K White Gold 4
2.14 Ct. Sapphire 18K White Gold ring
Item ID: 177945
$3,237
View Details
0.52 Ct. Bi Color Sapphire Ring, 18K White Gold 1
0.52 Ct. Bi Color Sapphire Ring, 18K White Gold 2
0.52 Ct. Bi Color Sapphire Ring, 18K White Gold 3
0.52 Ct. Bi Color Sapphire Ring, 18K White Gold 4
0.52 Ct. Sapphire 18K White Gold ring
Item ID: 78250
$1,803
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
1.03 Ct. White Sapphire Ring, 18K White Gold 1
1.03 Ct. White Sapphire Ring, 18K White Gold 2
1.03 Ct. White Sapphire Ring, 18K White Gold 3
1.03 Ct. White Sapphire Ring, 18K White Gold 4
1.03 Ct. Sapphire 18K White Gold ring
Item ID: 107021
$2,683
View Details
0.90 Ct. Brown Sapphire Ring, 18K White Gold 1
0.90 Ct. Brown Sapphire Ring, 18K White Gold 2
0.90 Ct. Brown Sapphire Ring, 18K White Gold 3
0.90 Ct. Brown Sapphire Ring, 18K White Gold 4
0.90 Ct. Sapphire 18K White Gold ring
Item ID: 199397
$2,228
View Details
0.74 Ct. Greenish Blue Sapphire Ring, 18K White Gold 1
0.74 Ct. Greenish Blue Sapphire Ring, 18K White Gold 2
0.74 Ct. Greenish Blue Sapphire Ring, 18K White Gold 3
0.74 Ct. Greenish Blue Sapphire Ring, 18K White Gold 4
0.74 Ct. Sapphire 18K White Gold ring
Item ID: 174877
$2,677
View Details
1.26 Ct. Greyish Blue Sapphire Ring, 18K White Gold 1
1.26 Ct. Greyish Blue Sapphire Ring, 18K White Gold 2
1.26 Ct. Greyish Blue Sapphire Ring, 18K White Gold 3
1.26 Ct. Greyish Blue Sapphire Ring, 18K White Gold 4
1.26 Ct. Sapphire 18K White Gold ring
Item ID: 182155
$4,223
View Details
1.53 Ct. Blue Sapphire Ring, 18K White Gold 1
1.53 Ct. Blue Sapphire Ring, 18K White Gold 2
1.53 Ct. Blue Sapphire Ring, 18K White Gold 3
1.53 Ct. Blue Sapphire Ring, 18K White Gold 4
1.53 Ct. Sapphire 18K White Gold ring
Item ID: 144672
$6,250
View Details
1.37 Ct. Green Sapphire Ring, 18K White Gold 1
1.37 Ct. Green Sapphire Ring, 18K White Gold 2
1.37 Ct. Green Sapphire Ring, 18K White Gold 3
1.37 Ct. Green Sapphire Ring, 18K White Gold 4
1.37 Ct. Sapphire 18K White Gold ring
Item ID: 165613
$5,333
View Details
1.08 Ct. Blue Sapphire Ring, 18K White Gold 1
1.08 Ct. Blue Sapphire Ring, 18K White Gold 2
1.08 Ct. Blue Sapphire Ring, 18K White Gold 3
1.08 Ct. Blue Sapphire Ring, 18K White Gold 4
1.08 Ct. Sapphire 18K White Gold ring
Item ID: 192019
$6,771
View Details
1.26 Ct. Greyish Blue Sapphire Ring, 18K White Gold 1
1.26 Ct. Greyish Blue Sapphire Ring, 18K White Gold 2
1.26 Ct. Greyish Blue Sapphire Ring, 18K White Gold 3
1.26 Ct. Greyish Blue Sapphire Ring, 18K White Gold 4
1.26 Ct. Sapphire 18K White Gold ring
Item ID: 157083
$3,377
View Details
1.41 Ct. Bluish Green Sapphire Ring, 18K White Gold 1
1.41 Ct. Bluish Green Sapphire Ring, 18K White Gold 2
1.41 Ct. Bluish Green Sapphire Ring, 18K White Gold 3
1.41 Ct. Bluish Green Sapphire Ring, 18K White Gold 4
1.41 Ct. Sapphire 18K White Gold ring
Item ID: 118542
$2,924
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: 178074
$5,198
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: 96965
$8,310
View Details
1.82 Ct. Pink Sapphire Ring, 18K White Gold 1
1.82 Ct. Pink Sapphire Ring, 18K White Gold 2
1.82 Ct. Pink Sapphire Ring, 18K White Gold 3
1.82 Ct. Pink Sapphire Ring, 18K White Gold 4
1.82 Ct. Sapphire 18K White Gold ring
Item ID: 182816
$4,258
View Details
1.08 Ct. Blue Sapphire Ring, 18K White Gold 1
1.08 Ct. Blue Sapphire Ring, 18K White Gold 2
1.08 Ct. Blue Sapphire Ring, 18K White Gold 3
1.08 Ct. Blue Sapphire Ring, 18K White Gold 4
1.08 Ct. Sapphire 18K White Gold ring
Item ID: 192033
$6,792
View Details
2.32 Ct. Blue Sapphire Ring, 18K White Gold 1
2.32 Ct. Blue Sapphire Ring, 18K White Gold 2
2.32 Ct. Blue Sapphire Ring, 18K White Gold 3
2.32 Ct. Blue Sapphire Ring, 18K White Gold 4
2.32 Ct. Sapphire 18K White Gold ring
Item ID: 181001
$9,111
View Details
1.53 Ct. Blue Sapphire Ring, 18K White Gold 1
1.53 Ct. Blue Sapphire Ring, 18K White Gold 2
1.53 Ct. Blue Sapphire Ring, 18K White Gold 3
1.53 Ct. Blue Sapphire Ring, 18K White Gold 4
1.53 Ct. Sapphire 18K White Gold ring
Item ID: 144676
$5,761
View Details
3.27 Ct. Bluish Green Sapphire Ring, 18K White Gold 1
3.27 Ct. Bluish Green Sapphire Ring, 18K White Gold 2
3.27 Ct. Bluish Green Sapphire Ring, 18K White Gold 3
3.27 Ct. Bluish Green Sapphire Ring, 18K White Gold 4
3.27 Ct. Sapphire 18K White Gold ring
Item ID: 193833
$7,030
View Details
1.24 Ct. Bluish Green Sapphire Ring, 18K White Gold 1
1.24 Ct. Bluish Green Sapphire Ring, 18K White Gold 2
1.24 Ct. Bluish Green Sapphire Ring, 18K White Gold 3
1.24 Ct. Bluish Green Sapphire Ring, 18K White Gold 4
1.24 Ct. Sapphire 18K White Gold ring
Item ID: 175311
$3,826
View Details
3.29 Ct. Purple Sapphire Ring, 18K White Gold 1
3.29 Ct. Purple Sapphire Ring, 18K White Gold 2
3.29 Ct. Purple Sapphire Ring, 18K White Gold 3
3.29 Ct. Purple Sapphire Ring, 18K White Gold 4
3.29 Ct. Sapphire 18K White Gold ring
Item ID: 181325
$11,612
View Details
1.26 Ct. Blue Sapphire Ring, 18K White Gold 1
1.26 Ct. Blue Sapphire Ring, 18K White Gold 2
1.26 Ct. Blue Sapphire Ring, 18K White Gold 3
1.26 Ct. Blue Sapphire Ring, 18K White Gold 4
1.26 Ct. Sapphire 18K White Gold ring
Item ID: 98719
$3,809
View Details
3.29 Ct. Purple Sapphire Ring, 18K White Gold 1
3.29 Ct. Purple Sapphire Ring, 18K White Gold 2
3.29 Ct. Purple Sapphire Ring, 18K White Gold 3
3.29 Ct. Purple Sapphire Ring, 18K White Gold 4
3.29 Ct. Sapphire 18K White Gold ring
Item ID: 181326
$12,254
View Details
1.98 Ct. Blue Sapphire Ring, 18K White Gold 1
1.98 Ct. Blue Sapphire Ring, 18K White Gold 2
1.98 Ct. Blue Sapphire Ring, 18K White Gold 3
1.98 Ct. Blue Sapphire Ring, 18K White Gold 4
1.98 Ct. Sapphire 18K White Gold ring
Item ID: 186714
$5,875
View Details
3.27 Ct. Bluish Green Sapphire Ring, 18K White Gold 1
3.27 Ct. Bluish Green Sapphire Ring, 18K White Gold 2
3.27 Ct. Bluish Green Sapphire Ring, 18K White Gold 3
3.27 Ct. Bluish Green Sapphire Ring, 18K White Gold 4
3.27 Ct. Sapphire 18K White Gold ring
Item ID: 167627
$7,509
View Details
0.76 Ct. Bluish Green Sapphire Ring, 18K White Gold 1
0.76 Ct. Bluish Green Sapphire Ring, 18K White Gold 2
0.76 Ct. Bluish Green Sapphire Ring, 18K White Gold 3
0.76 Ct. Bluish Green Sapphire Ring, 18K White Gold 4
0.76 Ct. Sapphire 18K White Gold ring
Item ID: 175308
$3,445
View Details
0.56 Ct. Blue Sapphire Ring, 18K White Gold 1
0.56 Ct. Blue Sapphire Ring, 18K White Gold 2
0.56 Ct. Blue Sapphire Ring, 18K White Gold 3
0.56 Ct. Blue Sapphire Ring, 18K White Gold 4
0.56 Ct. Sapphire 18K White Gold ring
Item ID: 163430
$1,887
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: 167671
$5,804
View Details
1.82 Ct. Blue Sapphire Ring, 18K White Gold 1
1.82 Ct. Blue Sapphire Ring, 18K White Gold 2
1.82 Ct. Blue Sapphire Ring, 18K White Gold 3
1.82 Ct. Blue Sapphire Ring, 18K White Gold 4
1.82 Ct. Sapphire 18K White Gold ring
Item ID: 182328
$6,605
View Details
3.07 Ct. Blue Sapphire Ring, 18K White Gold 1
3.07 Ct. Blue Sapphire Ring, 18K White Gold 2
3.07 Ct. Blue Sapphire Ring, 18K White Gold 3
3.07 Ct. Blue Sapphire Ring, 18K White Gold 4
3.07 Ct. Sapphire 18K White Gold ring
Item ID: 102869
$11,004
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: 138164
$6,208
View Details
0.59 Ct. Blue Sapphire Ring, 18K White Gold 1
0.59 Ct. Blue Sapphire Ring, 18K White Gold 2
0.59 Ct. Blue Sapphire Ring, 18K White Gold 3
0.59 Ct. Blue Sapphire Ring, 18K White Gold 4
0.59 Ct. Sapphire 18K White Gold ring
Item ID: 131333
$1,696
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: 160972
$6,446
View Details
0.78 Ct. Blue Sapphire Ring, 18K White Gold 1
0.78 Ct. Blue Sapphire Ring, 18K White Gold 2
0.78 Ct. Blue Sapphire Ring, 18K White Gold 3
0.78 Ct. Blue Sapphire Ring, 18K White Gold 4
0.78 Ct. Sapphire 18K White Gold ring
Item ID: 195478
$3,240
View Details
1.15 Ct. Blue Sapphire Ring, 18K White Gold 1
1.15 Ct. Blue Sapphire Ring, 18K White Gold 2
1.15 Ct. Blue Sapphire Ring, 18K White Gold 3
1.15 Ct. Blue Sapphire Ring, 18K White Gold 4
1.15 Ct. Sapphire 18K White Gold ring
Item ID: 155619
$7,265
View Details
0.85 Ct. Green Sapphire Ring, 18K White Gold 1
0.85 Ct. Green Sapphire Ring, 18K White Gold 2
0.85 Ct. Green Sapphire Ring, 18K White Gold 3
0.85 Ct. Green Sapphire Ring, 18K White Gold 4
0.85 Ct. Sapphire 18K White Gold ring
Item ID: 160005
$4,017
View Details
1.07 Ct. Violet Sapphire Ring, 18K White Gold 1
1.07 Ct. Violet Sapphire Ring, 18K White Gold 2
1.07 Ct. Violet Sapphire Ring, 18K White Gold 3
1.07 Ct. Violet Sapphire Ring, 18K White Gold 4
1.07 Ct. Sapphire 18K White Gold ring
Item ID: 193408
$2,891
View Details
1.27 Ct. Blue Sapphire Ring, 18K White Gold 1
1.27 Ct. Blue Sapphire Ring, 18K White Gold 2
1.27 Ct. Blue Sapphire Ring, 18K White Gold 3
1.27 Ct. Blue Sapphire Ring, 18K White Gold 4
1.27 Ct. Sapphire 18K White Gold ring
Item ID: 185653
$5,231
View Details
1.37 Ct. Green Sapphire Ring, 18K White Gold 1
1.37 Ct. Green Sapphire Ring, 18K White Gold 2
1.37 Ct. Green Sapphire Ring, 18K White Gold 3
1.37 Ct. Green Sapphire Ring, 18K White Gold 4
1.37 Ct. Sapphire 18K White Gold ring
Item ID: 189764
$3,276
View Details
1.72 Ct. Greenish Blue Sapphire Ring, 18K White Gold 1
1.72 Ct. Greenish Blue Sapphire Ring, 18K White Gold 2
1.72 Ct. Greenish Blue Sapphire Ring, 18K White Gold 3
1.72 Ct. Greenish Blue Sapphire Ring, 18K White Gold 4
1.72 Ct. Sapphire 18K White Gold ring
Item ID: 178007
$6,808
View Details
1
...
140141142143144145146
...
546

Our Customers Love Us

See what people are saying on Google and Verified Reviews