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
33648 results
Change view:
Sort by:
Select
Change view:
0.96 Ct. Blue Sapphire Ring, 18K White Gold 1
0.96 Ct. Blue Sapphire Ring, 18K White Gold 2
0.96 Ct. Blue Sapphire Ring, 18K White Gold 3
0.96 Ct. Blue Sapphire Ring, 18K White Gold 4
0.96 Ct. Sapphire 18K White Gold ring
Item ID: 162833
$3,605
View Details
1.87 Ct. Pink Sapphire Ring, 18K White Gold 1
1.87 Ct. Pink Sapphire Ring, 18K White Gold 2
1.87 Ct. Pink Sapphire Ring, 18K White Gold 3
1.87 Ct. Pink Sapphire Ring, 18K White Gold 4
1.87 Ct. Sapphire 18K White Gold ring
Item ID: 169653
$5,642
View Details
1.38 Ct. Purplish Pink Sapphire Ring, 18K White Gold 1
1.38 Ct. Purplish Pink Sapphire Ring, 18K White Gold 2
1.38 Ct. Purplish Pink Sapphire Ring, 18K White Gold 3
1.38 Ct. Purplish Pink Sapphire Ring, 18K White Gold 4
1.38 Ct. Sapphire 18K White Gold ring
Item ID: 169643
$3,262
View Details
1.87 Ct. Pink Sapphire Ring, 18K White Gold 1
1.87 Ct. Pink Sapphire Ring, 18K White Gold 2
1.87 Ct. Pink Sapphire Ring, 18K White Gold 3
1.87 Ct. Pink Sapphire Ring, 18K White Gold 4
1.87 Ct. Sapphire 18K White Gold ring
Item ID: 169656
$4,080
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: 169657
$4,085
View Details
3.22 Ct. Blue Sapphire Ring, 18K White Gold 1
3.22 Ct. Blue Sapphire Ring, 18K White Gold 2
3.22 Ct. Blue Sapphire Ring, 18K White Gold 3
3.22 Ct. Blue Sapphire Ring, 18K White Gold 4
3.22 Ct. Sapphire 18K White Gold ring
Item ID: 162787
$8,827
View Details
2.48 Ct. Violet Sapphire Ring, 18K White Gold 1
2.48 Ct. Violet Sapphire Ring, 18K White Gold 2
2.48 Ct. Violet Sapphire Ring, 18K White Gold 3
2.48 Ct. Violet Sapphire Ring, 18K White Gold 4
2.48 Ct. Sapphire 18K White Gold ring
Item ID: 169676
$5,281
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: 138785
$4,328
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
$2,394
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: 138839
$2,674
View Details
1.97 Ct. Yellow Sapphire Ring, 18K White Gold 1
1.97 Ct. Yellow Sapphire Ring, 18K White Gold 2
1.97 Ct. Yellow Sapphire Ring, 18K White Gold 3
1.97 Ct. Yellow Sapphire Ring, 18K White Gold 4
1.97 Ct. Sapphire 18K White Gold ring
Item ID: 128207
$3,340
View Details
2.91 Ct. Blue Sapphire Ring, 18K White Gold 1
2.91 Ct. Blue Sapphire Ring, 18K White Gold 2
2.91 Ct. Blue Sapphire Ring, 18K White Gold 3
2.91 Ct. Blue Sapphire Ring, 18K White Gold 4
2.91 Ct. Sapphire 18K White Gold ring
Item ID: 128214
$9,458
View Details
1.14 Ct. Blue Sapphire Ring, 18K White Gold 1
1.14 Ct. Blue Sapphire Ring, 18K White Gold 2
1.14 Ct. Blue Sapphire Ring, 18K White Gold 3
1.14 Ct. Blue Sapphire Ring, 18K White Gold 4
1.14 Ct. Sapphire 18K White Gold ring
Item ID: 128203
$3,505
View Details
2.26 Ct. White Sapphire Ring, 18K White Gold 1
2.26 Ct. White Sapphire Ring, 18K White Gold 2
2.26 Ct. White Sapphire Ring, 18K White Gold 3
2.26 Ct. White Sapphire Ring, 18K White Gold 4
2.26 Ct. Sapphire 18K White Gold ring
Item ID: 139010
$5,516
View Details
2.10 Ct. Pink Sapphire Ring, 18K White Gold 1
2.10 Ct. Pink Sapphire Ring, 18K White Gold 2
2.10 Ct. Pink Sapphire Ring, 18K White Gold 3
2.10 Ct. Pink Sapphire Ring, 18K White Gold 4
2.10 Ct. Sapphire 18K White Gold ring
Item ID: 139014
$7,494
View Details
2.67 Ct. Bluish Green Sapphire Ring, 18K White Gold 1
2.67 Ct. Bluish Green Sapphire Ring, 18K White Gold 2
2.67 Ct. Bluish Green Sapphire Ring, 18K White Gold 3
2.67 Ct. Bluish Green Sapphire Ring, 18K White Gold 4
2.67 Ct. Sapphire 18K White Gold ring
Item ID: 117334
$11,846
View Details
3.22 Ct. Blue Sapphire Ring, 18K White Gold 1
3.22 Ct. Blue Sapphire Ring, 18K White Gold 2
3.22 Ct. Blue Sapphire Ring, 18K White Gold 3
3.22 Ct. Blue Sapphire Ring, 18K White Gold 4
3.22 Ct. Sapphire 18K White Gold ring
Item ID: 117248
$8,488
View Details
1.12 Ct. Greenish Blue Sapphire Ring, 18K White Gold 1
1.12 Ct. Greenish Blue Sapphire Ring, 18K White Gold 2
1.12 Ct. Greenish Blue Sapphire Ring, 18K White Gold 3
1.12 Ct. Greenish Blue Sapphire Ring, 18K White Gold 4
1.12 Ct. Sapphire 18K White Gold ring
Item ID: 138847
$3,326
View Details
10.19 Ct. Blue Sapphire Ring, 18K White Gold 1
10.19 Ct. Blue Sapphire Ring, 18K White Gold 2
10.19 Ct. Blue Sapphire Ring, 18K White Gold 3
10.19 Ct. Blue Sapphire Ring, 18K White Gold 4
10.19 Ct. Sapphire 18K White Gold ring
Item ID: 105612
$75,060
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
$8,513
View Details
4.08 Ct. Greenish Blue Sapphire Ring, 18K White Gold 1
4.08 Ct. Greenish Blue Sapphire Ring, 18K White Gold 2
4.08 Ct. Greenish Blue Sapphire Ring, 18K White Gold 3
4.08 Ct. Greenish Blue Sapphire Ring, 18K White Gold 4
4.08 Ct. Sapphire 18K White Gold ring
Item ID: 138865
$12,077
View Details
2.75 Ct. White Sapphire Ring, 18K White Gold 1
2.75 Ct. White Sapphire Ring, 18K White Gold 2
2.75 Ct. White Sapphire Ring, 18K White Gold 3
2.75 Ct. White Sapphire Ring, 18K White Gold 4
2.75 Ct. Sapphire 18K White Gold ring
Item ID: 128319
$5,651
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: 117025
$3,564
View Details
1.74 Ct. Padparadscha Sapphire Ring, 18K White Gold 1
1.74 Ct. Padparadscha Sapphire Ring, 18K White Gold 2
1.74 Ct. Padparadscha Sapphire Ring, 18K White Gold 3
1.74 Ct. Padparadscha Sapphire Ring, 18K White Gold 4
1.74 Ct. Sapphire 18K White Gold ring
Item ID: 117081
$8,644
View Details
4.57 Ct. Pink Sapphire Ring, 18K White Gold 1
4.57 Ct. Pink Sapphire Ring, 18K White Gold 2
4.57 Ct. Pink Sapphire Ring, 18K White Gold 3
4.57 Ct. Pink Sapphire Ring, 18K White Gold 4
4.57 Ct. Sapphire 18K White Gold ring
Item ID: 117159
$32,333
View Details
1.12 Ct. Greenish Blue Sapphire Ring, 18K White Gold 1
1.12 Ct. Greenish Blue Sapphire Ring, 18K White Gold 2
1.12 Ct. Greenish Blue Sapphire Ring, 18K White Gold 3
1.12 Ct. Greenish Blue Sapphire Ring, 18K White Gold 4
1.12 Ct. Sapphire 18K White Gold ring
Item ID: 126997
$4,084
View Details
0.71 Ct. Green Sapphire Ring, 18K White Gold 1
0.71 Ct. Green Sapphire Ring, 18K White Gold 2
0.71 Ct. Green Sapphire Ring, 18K White Gold 3
0.71 Ct. Green Sapphire Ring, 18K White Gold 4
0.71 Ct. Sapphire 18K White Gold ring
Item ID: 117120
$2,892
View Details
1.31 Ct. Blue Sapphire Ring, 18K White Gold 1
1.31 Ct. Blue Sapphire Ring, 18K White Gold 2
1.31 Ct. Blue Sapphire Ring, 18K White Gold 3
1.31 Ct. Blue Sapphire Ring, 18K White Gold 4
1.31 Ct. Sapphire 18K White Gold ring
Item ID: 138995
$4,658
View Details
3.58 Ct. Greyish Blue Sapphire Ring, 18K White Gold 1
3.58 Ct. Greyish Blue Sapphire Ring, 18K White Gold 2
3.58 Ct. Greyish Blue Sapphire Ring, 18K White Gold 3
3.58 Ct. Greyish Blue Sapphire Ring, 18K White Gold 4
3.58 Ct. Sapphire 18K White Gold ring
Item ID: 138985
$12,510
View Details
2.10 Ct. Pink Sapphire Ring, 18K White Gold 1
2.10 Ct. Pink Sapphire Ring, 18K White Gold 2
2.10 Ct. Pink Sapphire Ring, 18K White Gold 3
2.10 Ct. Pink Sapphire Ring, 18K White Gold 4
2.10 Ct. Sapphire 18K White Gold ring
Item ID: 138966
$6,832
View Details
2.33 Ct. Padparadscha Sapphire Ring, 18K White Gold 1
2.33 Ct. Padparadscha Sapphire Ring, 18K White Gold 2
2.33 Ct. Padparadscha Sapphire Ring, 18K White Gold 3
2.33 Ct. Padparadscha Sapphire Ring, 18K White Gold 4
2.33 Ct. Sapphire 18K White Gold ring
Item ID: 138999
$12,742
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
$4,296
View Details
2.21 Ct. Blue Sapphire Ring, 18K White Gold 1
2.21 Ct. Blue Sapphire Ring, 18K White Gold 2
2.21 Ct. Blue Sapphire Ring, 18K White Gold 3
2.21 Ct. Blue Sapphire Ring, 18K White Gold 4
2.21 Ct. Sapphire 18K White Gold ring
Item ID: 215825
$9,081
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: 202119
$5,537
View Details
1.29 Ct. Bluish Purple Sapphire Ring, 18K White Gold 1
1.29 Ct. Bluish Purple Sapphire Ring, 18K White Gold 2
1.29 Ct. Bluish Purple Sapphire Ring, 18K White Gold 3
1.29 Ct. Bluish Purple Sapphire Ring, 18K White Gold 4
1.29 Ct. Sapphire 18K White Gold ring
Item ID: 162900
$2,965
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
$3,245
View Details
1.24 Ct. Purplish Pink Sapphire Ring, 18K White Gold 1
1.24 Ct. Purplish Pink Sapphire Ring, 18K White Gold 2
1.24 Ct. Purplish Pink Sapphire Ring, 18K White Gold 3
1.24 Ct. Purplish Pink Sapphire Ring, 18K White Gold 4
1.24 Ct. Sapphire 18K White Gold ring
Item ID: 202075
$3,412
View Details
1.28 Ct. Bi Color Sapphire Ring, 18K White Gold 1
1.28 Ct. Bi Color Sapphire Ring, 18K White Gold 2
1.28 Ct. Bi Color Sapphire Ring, 18K White Gold 3
1.28 Ct. Bi Color Sapphire Ring, 18K White Gold 4
1.28 Ct. Sapphire 18K White Gold ring
Item ID: 202082
$4,064
View Details
3.01 Ct. Blue Sapphire Ring, 18K White Gold 1
3.01 Ct. Blue Sapphire Ring, 18K White Gold 2
3.01 Ct. Blue Sapphire Ring, 18K White Gold 3
3.01 Ct. Blue Sapphire Ring, 18K White Gold 4
3.01 Ct. Sapphire 18K White Gold ring
Item ID: 156286
$11,112
View Details
0.60 Ct. Purple Sapphire Ring, 18K White Gold 1
0.60 Ct. Purple Sapphire Ring, 18K White Gold 2
0.60 Ct. Purple Sapphire Ring, 18K White Gold 3
0.60 Ct. Purple Sapphire Ring, 18K White Gold 4
0.60 Ct. Sapphire 18K White Gold ring
Item ID: 148294
$2,561
View Details
3.00 Ct. Color Change Sapphire Ring, 18K White Gold 1
3.00 Ct. Color Change Sapphire Ring, 18K White Gold 2
3.00 Ct. Color Change Sapphire Ring, 18K White Gold 3
3.00 Ct. Color Change Sapphire Ring, 18K White Gold 4
3.00 Ct. Sapphire 18K White Gold ring
Item ID: 156276
$7,091
View Details
0.87 Ct. Bluish Green Sapphire Ring, 18K White Gold 1
0.87 Ct. Bluish Green Sapphire Ring, 18K White Gold 2
0.87 Ct. Bluish Green Sapphire Ring, 18K White Gold 3
0.87 Ct. Bluish Green Sapphire Ring, 18K White Gold 4
0.87 Ct. Sapphire 18K White Gold ring
Item ID: 148203
$3,072
View Details
1.00 Ct. Green Sapphire Ring, 18K White Gold 1
1.00 Ct. Green Sapphire Ring, 18K White Gold 2
1.00 Ct. Green Sapphire Ring, 18K White Gold 3
1.00 Ct. Green Sapphire Ring, 18K White Gold 4
1.00 Ct. Sapphire 18K White Gold ring
Item ID: 148145
$4,718
View Details
0.87 Ct. Bluish Green Sapphire Ring, 18K White Gold 1
0.87 Ct. Bluish Green Sapphire Ring, 18K White Gold 2
0.87 Ct. Bluish Green Sapphire Ring, 18K White Gold 3
0.87 Ct. Bluish Green Sapphire Ring, 18K White Gold 4
0.87 Ct. Sapphire 18K White Gold ring
Item ID: 148198
$3,261
View Details
4.38 Ct. Yellow Sapphire Ring, 18K White Gold 1
4.38 Ct. Yellow Sapphire Ring, 18K White Gold 2
4.38 Ct. Yellow Sapphire Ring, 18K White Gold 3
4.38 Ct. Yellow Sapphire Ring, 18K White Gold 4
4.38 Ct. Sapphire 18K White Gold ring
Item ID: 116749
$7,207
View Details
1.79 Ct. Green Sapphire Ring, 18K White Gold 1
1.79 Ct. Green Sapphire Ring, 18K White Gold 2
1.79 Ct. Green Sapphire Ring, 18K White Gold 3
1.79 Ct. Green Sapphire Ring, 18K White Gold 4
1.79 Ct. Sapphire 18K White Gold ring
Item ID: 116768
$5,289
View Details
3.37 Ct. Blue Sapphire Ring, 18K White Gold 1
3.37 Ct. Blue Sapphire Ring, 18K White Gold 2
3.37 Ct. Blue Sapphire Ring, 18K White Gold 3
3.37 Ct. Blue Sapphire Ring, 18K White Gold 4
3.37 Ct. Sapphire 18K White Gold ring
Item ID: 116686
$22,284
View Details
6.64 Ct. Pink Sapphire Ring, 18K White Gold 1
6.64 Ct. Pink Sapphire Ring, 18K White Gold 2
6.64 Ct. Pink Sapphire Ring, 18K White Gold 3
6.64 Ct. Pink Sapphire Ring, 18K White Gold 4
6.64 Ct. Sapphire 18K White Gold ring
Item ID: 116671
$31,900
View Details
7.81 Ct. Pink Sapphire Ring, 18K White Gold 1
7.81 Ct. Pink Sapphire Ring, 18K White Gold 2
7.81 Ct. Pink Sapphire Ring, 18K White Gold 3
7.81 Ct. Pink Sapphire Ring, 18K White Gold 4
7.81 Ct. Sapphire 18K White Gold ring
Item ID: 105383
$35,444
View Details
2.29 Ct. Bluish Green Sapphire Ring, 18K White Gold 1
2.29 Ct. Bluish Green Sapphire Ring, 18K White Gold 2
2.29 Ct. Bluish Green Sapphire Ring, 18K White Gold 3
2.29 Ct. Bluish Green Sapphire Ring, 18K White Gold 4
2.29 Ct. Sapphire 18K White Gold ring
Item ID: 84934
$6,490
View Details
2.33 Ct. Padparadscha Sapphire Ring, 18K White Gold 1
2.33 Ct. Padparadscha Sapphire Ring, 18K White Gold 2
2.33 Ct. Padparadscha Sapphire Ring, 18K White Gold 3
2.33 Ct. Padparadscha Sapphire Ring, 18K White Gold 4
2.33 Ct. Sapphire 18K White Gold ring
Item ID: 105360
$14,044
View Details
3.31 Ct. Green Sapphire Ring, 18K White Gold 1
3.31 Ct. Green Sapphire Ring, 18K White Gold 2
3.31 Ct. Green Sapphire Ring, 18K White Gold 3
3.31 Ct. Green Sapphire Ring, 18K White Gold 4
3.31 Ct. Sapphire 18K White Gold ring
Item ID: 189794
$6,779
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: 84878
$2,333
View Details
0.64 Ct. Pink Sapphire Ring, 18K White Gold 1
0.64 Ct. Pink Sapphire Ring, 18K White Gold 2
0.64 Ct. Pink Sapphire Ring, 18K White Gold 3
0.64 Ct. Pink Sapphire Ring, 18K White Gold 4
0.64 Ct. Sapphire 18K White Gold ring
Item ID: 84948
$2,291
View Details
1.27 Ct. Color Change Sapphire Ring, 18K White Gold 1
1.27 Ct. Color Change Sapphire Ring, 18K White Gold 2
1.27 Ct. Color Change Sapphire Ring, 18K White Gold 3
1.27 Ct. Color Change Sapphire Ring, 18K White Gold 4
1.27 Ct. Sapphire 18K White Gold ring
Item ID: 116474
$3,529
View Details
1.57 Ct. White Sapphire Ring, 18K White Gold 1
1.57 Ct. White Sapphire Ring, 18K White Gold 2
1.57 Ct. White Sapphire Ring, 18K White Gold 3
1.57 Ct. White Sapphire Ring, 18K White Gold 4
1.57 Ct. Sapphire 18K White Gold ring
Item ID: 194521
$3,596
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: 84867
$6,271
View Details
0.51 Ct. Pink Sapphire Ring, 18K White Gold 1
0.51 Ct. Pink Sapphire Ring, 18K White Gold 2
0.51 Ct. Pink Sapphire Ring, 18K White Gold 3
0.51 Ct. Pink Sapphire Ring, 18K White Gold 4
0.51 Ct. Sapphire 18K White Gold ring
Item ID: 194430
$2,049
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: 84807
$4,586
View Details
0.79 Ct. Purple Sapphire Ring, 18K White Gold 1
0.79 Ct. Purple Sapphire Ring, 18K White Gold 2
0.79 Ct. Purple Sapphire Ring, 18K White Gold 3
0.79 Ct. Purple Sapphire Ring, 18K White Gold 4
0.79 Ct. Sapphire 18K White Gold ring
Item ID: 84696
$2,006
View Details
1
...
334335336337338339340
...
561

Our Customers Love Us

See what people are saying on Google and Verified Reviews