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
32207 results
Change view:
Sort by:
Select
Change view:
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: 73132
$6,765
View Details
7.32 Ct. Bi Color Sapphire Ring, 18K White Gold 1
7.32 Ct. Bi Color Sapphire Ring, 18K White Gold 2
7.32 Ct. Bi Color Sapphire Ring, 18K White Gold 3
7.32 Ct. Bi Color Sapphire Ring, 18K White Gold 4
7.32 Ct. Sapphire 18K White Gold ring
Item ID: 144736
$24,209
View Details
0.99 Ct. Blue Sapphire Ring, 18K White Gold 1
0.99 Ct. Blue Sapphire Ring, 18K White Gold 2
0.99 Ct. Blue Sapphire Ring, 18K White Gold 3
0.99 Ct. Blue Sapphire Ring, 18K White Gold 4
0.99 Ct. Sapphire 18K White Gold ring
Item ID: 128089
$4,910
View Details
5.69 Ct. Blue Sapphire Ring, 18K White Gold 1
5.69 Ct. Blue Sapphire Ring, 18K White Gold 2
5.69 Ct. Blue Sapphire Ring, 18K White Gold 3
5.69 Ct. Blue Sapphire Ring, 18K White Gold 4
5.69 Ct. Sapphire 18K White Gold ring
Item ID: 100347
$16,410
View Details
1.58 Ct. Blue Sapphire Ring, 18K White Gold 1
1.58 Ct. Blue Sapphire Ring, 18K White Gold 2
1.58 Ct. Blue Sapphire Ring, 18K White Gold 3
1.58 Ct. Blue Sapphire Ring, 18K White Gold 4
1.58 Ct. Sapphire 18K White Gold ring
Item ID: 161470
$6,948
View Details
1.50 Ct. Bluish Green Sapphire Ring, 18K White Gold 1
1.50 Ct. Bluish Green Sapphire Ring, 18K White Gold 2
1.50 Ct. Bluish Green Sapphire Ring, 18K White Gold 3
1.50 Ct. Bluish Green Sapphire Ring, 18K White Gold 4
1.50 Ct. Sapphire 18K White Gold ring
Item ID: 199744
$3,907
View Details
2.01 Ct. Blue Sapphire Ring, 18K White Gold 1
2.01 Ct. Blue Sapphire Ring, 18K White Gold 2
2.01 Ct. Blue Sapphire Ring, 18K White Gold 3
2.01 Ct. Blue Sapphire Ring, 18K White Gold 4
2.01 Ct. Sapphire 18K White Gold ring
Item ID: 129236
$8,561
View Details
1.57 Ct. Blue Sapphire Ring, 18K White Gold 1
1.57 Ct. Blue Sapphire Ring, 18K White Gold 2
1.57 Ct. Blue Sapphire Ring, 18K White Gold 3
1.57 Ct. Blue Sapphire Ring, 18K White Gold 4
1.57 Ct. Sapphire 18K White Gold ring
Item ID: 143907
$6,346
View Details
2.34 Ct. Blue Sapphire Ring, 18K White Gold 1
2.34 Ct. Blue Sapphire Ring, 18K White Gold 2
2.34 Ct. Blue Sapphire Ring, 18K White Gold 3
2.34 Ct. Blue Sapphire Ring, 18K White Gold 4
2.34 Ct. Sapphire 18K White Gold ring
Item ID: 160907
$3,642
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: 195438
$2,211
View Details
2.76 Ct. Bi Color Sapphire Ring, 18K White Gold 1
2.76 Ct. Bi Color Sapphire Ring, 18K White Gold 2
2.76 Ct. Bi Color Sapphire Ring, 18K White Gold 3
2.76 Ct. Bi Color Sapphire Ring, 18K White Gold 4
2.76 Ct. Sapphire 18K White Gold ring
Item ID: 166130
$4,402
View Details
2.34 Ct. Purple Sapphire Ring, 18K White Gold 1
2.34 Ct. Purple Sapphire Ring, 18K White Gold 2
2.34 Ct. Purple Sapphire Ring, 18K White Gold 3
2.34 Ct. Purple Sapphire Ring, 18K White Gold 4
2.34 Ct. Sapphire 18K White Gold ring
Item ID: 156674
$3,265
View Details
2.07 Ct. Pink Sapphire Ring, 18K White Gold 1
2.07 Ct. Pink Sapphire Ring, 18K White Gold 2
2.07 Ct. Pink Sapphire Ring, 18K White Gold 3
2.07 Ct. Pink Sapphire Ring, 18K White Gold 4
2.07 Ct. Sapphire 18K White Gold ring
Item ID: 196091
$5,088
View Details
4.02 Ct. Blue Sapphire Ring, 18K White Gold 1
4.02 Ct. Blue Sapphire Ring, 18K White Gold 2
4.02 Ct. Blue Sapphire Ring, 18K White Gold 3
4.02 Ct. Blue Sapphire Ring, 18K White Gold 4
4.02 Ct. Sapphire 18K White Gold ring
Item ID: 191683
$27,393
View Details
1.42 Ct. Green Sapphire Ring, 18K White Gold 1
1.42 Ct. Green Sapphire Ring, 18K White Gold 2
1.42 Ct. Green Sapphire Ring, 18K White Gold 3
1.42 Ct. Green Sapphire Ring, 18K White Gold 4
1.42 Ct. Sapphire 18K White Gold ring
Item ID: 181473
$3,817
View Details
1.92 Ct. Greenish Blue Sapphire Ring, 18K White Gold 1
1.92 Ct. Greenish Blue Sapphire Ring, 18K White Gold 2
1.92 Ct. Greenish Blue Sapphire Ring, 18K White Gold 3
1.92 Ct. Greenish Blue Sapphire Ring, 18K White Gold 4
1.92 Ct. Sapphire 18K White Gold ring
Item ID: 164049
$6,286
View Details
3.51 Ct. Blue Sapphire Ring, 18K White Gold 1
3.51 Ct. Blue Sapphire Ring, 18K White Gold 2
3.51 Ct. Blue Sapphire Ring, 18K White Gold 3
3.51 Ct. Blue Sapphire Ring, 18K White Gold 4
3.51 Ct. Sapphire 18K White Gold ring
Item ID: 195707
$9,312
View Details
4.08 Ct. Yellow Sapphire Ring, 18K White Gold 1
4.08 Ct. Yellow Sapphire Ring, 18K White Gold 2
4.08 Ct. Yellow Sapphire Ring, 18K White Gold 3
4.08 Ct. Yellow Sapphire Ring, 18K White Gold 4
4.08 Ct. Sapphire 18K White Gold ring
Item ID: 181864
$12,137
View Details
4.05 Ct. Blue Sapphire Ring, 18K White Gold 1
4.05 Ct. Blue Sapphire Ring, 18K White Gold 2
4.05 Ct. Blue Sapphire Ring, 18K White Gold 3
4.05 Ct. Blue Sapphire Ring, 18K White Gold 4
4.05 Ct. Sapphire 18K White Gold ring
Item ID: 168363
$19,686
View Details
2.31 Ct. Blue Sapphire Ring, 18K White Gold 1
2.31 Ct. Blue Sapphire Ring, 18K White Gold 2
2.31 Ct. Blue Sapphire Ring, 18K White Gold 3
2.31 Ct. Blue Sapphire Ring, 18K White Gold 4
2.31 Ct. Sapphire 18K White Gold ring
Item ID: 112161
$18,925
View Details
5.46 Ct. Yellow Sapphire Ring, 18K White Gold 1
5.46 Ct. Yellow Sapphire Ring, 18K White Gold 2
5.46 Ct. Yellow Sapphire Ring, 18K White Gold 3
5.46 Ct. Yellow Sapphire Ring, 18K White Gold 4
5.46 Ct. Sapphire 18K White Gold ring
Item ID: 73512
$11,518
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: 74957
$2,985
View Details
1.35 Ct. Blue Sapphire Ring, 18K White Gold 1
1.35 Ct. Blue Sapphire Ring, 18K White Gold 2
1.35 Ct. Blue Sapphire Ring, 18K White Gold 3
1.35 Ct. Blue Sapphire Ring, 18K White Gold 4
1.35 Ct. Sapphire 18K White Gold ring
Item ID: 183727
$3,974
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: 183519
$16,001
View Details
1.00 Ct. Reddish Pink Sapphire Ring, 18K White Gold 1
1.00 Ct. Reddish Pink Sapphire Ring, 18K White Gold 2
1.00 Ct. Reddish Pink Sapphire Ring, 18K White Gold 3
1.00 Ct. Reddish Pink Sapphire Ring, 18K White Gold 4
1.00 Ct. Sapphire 18K White Gold ring
Item ID: 84866
$2,126
View Details
1.92 Ct. Greenish Blue Sapphire Ring, 18K White Gold 1
1.92 Ct. Greenish Blue Sapphire Ring, 18K White Gold 2
1.92 Ct. Greenish Blue Sapphire Ring, 18K White Gold 3
1.92 Ct. Greenish Blue Sapphire Ring, 18K White Gold 4
1.92 Ct. Sapphire 18K White Gold ring
Item ID: 164094
$5,298
View Details
7.53 Ct. Bluish Green Sapphire Ring, 18K White Gold 1
7.53 Ct. Bluish Green Sapphire Ring, 18K White Gold 2
7.53 Ct. Bluish Green Sapphire Ring, 18K White Gold 3
7.53 Ct. Bluish Green Sapphire Ring, 18K White Gold 4
7.53 Ct. Sapphire 18K White Gold ring
Item ID: 194562
$19,677
View Details
1.20 Ct. Violet Sapphire Ring, 18K White Gold 1
1.20 Ct. Violet Sapphire Ring, 18K White Gold 2
1.20 Ct. Violet Sapphire Ring, 18K White Gold 3
1.20 Ct. Violet Sapphire Ring, 18K White Gold 4
1.20 Ct. Sapphire 18K White Gold ring
Item ID: 158450
$3,677
View Details
3.19 Ct. Pink Sapphire Ring, 18K White Gold 1
3.19 Ct. Pink Sapphire Ring, 18K White Gold 2
3.19 Ct. Pink Sapphire Ring, 18K White Gold 3
3.19 Ct. Pink Sapphire Ring, 18K White Gold 4
3.19 Ct. Sapphire 18K White Gold ring
Item ID: 194673
$10,302
View Details
3.19 Ct. Pink Sapphire Ring, 18K White Gold 1
3.19 Ct. Pink Sapphire Ring, 18K White Gold 2
3.19 Ct. Pink Sapphire Ring, 18K White Gold 3
3.19 Ct. Pink Sapphire Ring, 18K White Gold 4
3.19 Ct. Sapphire 18K White Gold ring
Item ID: 191535
$7,664
View Details
2.62 Ct. Bluish Green Sapphire Ring, 18K White Gold 1
2.62 Ct. Bluish Green Sapphire Ring, 18K White Gold 2
2.62 Ct. Bluish Green Sapphire Ring, 18K White Gold 3
2.62 Ct. Bluish Green Sapphire Ring, 18K White Gold 4
2.62 Ct. Sapphire 18K White Gold ring
Item ID: 141332
$6,933
View Details
0.93 Ct. Green Sapphire Ring, 18K White Gold 1
0.93 Ct. Green Sapphire Ring, 18K White Gold 2
0.93 Ct. Green Sapphire Ring, 18K White Gold 3
0.93 Ct. Green Sapphire Ring, 18K White Gold 4
0.93 Ct. Sapphire 18K White Gold ring
Item ID: 172653
$2,116
View Details
1.13 Ct. Blue Sapphire Ring, 18K White Gold 1
1.13 Ct. Blue Sapphire Ring, 18K White Gold 2
1.13 Ct. Blue Sapphire Ring, 18K White Gold 3
1.13 Ct. Blue Sapphire Ring, 18K White Gold 4
1.13 Ct. Sapphire 18K White Gold ring
Item ID: 114717
$5,323
View Details
0.98 Ct. Blue Sapphire Ring, 18K White Gold 1
0.98 Ct. Blue Sapphire Ring, 18K White Gold 2
0.98 Ct. Blue Sapphire Ring, 18K White Gold 3
0.98 Ct. Blue Sapphire Ring, 18K White Gold 4
0.98 Ct. Sapphire 18K White Gold ring
Item ID: 154667
$3,463
View Details
1.07 Ct. Padparadscha Sapphire Ring, 18K White Gold 1
1.07 Ct. Padparadscha Sapphire Ring, 18K White Gold 2
1.07 Ct. Padparadscha Sapphire Ring, 18K White Gold 3
1.07 Ct. Padparadscha Sapphire Ring, 18K White Gold 4
1.07 Ct. Sapphire 18K White Gold ring
Item ID: 190239
$2,564
View Details
2.28 Ct. Blue Sapphire Ring, 18K White Gold 1
2.28 Ct. Blue Sapphire Ring, 18K White Gold 2
2.28 Ct. Blue Sapphire Ring, 18K White Gold 3
2.28 Ct. Blue Sapphire Ring, 18K White Gold 4
2.28 Ct. Sapphire 18K White Gold ring
Item ID: 187571
$6,232
View Details
1.42 Ct. Violet Sapphire Ring, 18K White Gold 1
1.42 Ct. Violet Sapphire Ring, 18K White Gold 2
1.42 Ct. Violet Sapphire Ring, 18K White Gold 3
1.42 Ct. Violet Sapphire Ring, 18K White Gold 4
1.42 Ct. Sapphire 18K White Gold ring
Item ID: 163393
$2,652
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: 175874
$2,417
View Details
2.78 Ct. Color Change Sapphire Ring, 18K White Gold 1
2.78 Ct. Color Change Sapphire Ring, 18K White Gold 2
2.78 Ct. Color Change Sapphire Ring, 18K White Gold 3
2.78 Ct. Color Change Sapphire Ring, 18K White Gold 4
2.78 Ct. Sapphire 18K White Gold ring
Item ID: 172721
$5,513
View Details
2.58 Ct. Bluish Green Sapphire Ring, 18K White Gold 1
2.58 Ct. Bluish Green Sapphire Ring, 18K White Gold 2
2.58 Ct. Bluish Green Sapphire Ring, 18K White Gold 3
2.58 Ct. Bluish Green Sapphire Ring, 18K White Gold 4
2.58 Ct. Sapphire 18K White Gold ring
Item ID: 194214
$8,881
View Details
2.78 Ct. Color Change Sapphire Ring, 18K White Gold 1
2.78 Ct. Color Change Sapphire Ring, 18K White Gold 2
2.78 Ct. Color Change Sapphire Ring, 18K White Gold 3
2.78 Ct. Color Change Sapphire Ring, 18K White Gold 4
2.78 Ct. Sapphire 18K White Gold ring
Item ID: 162401
$6,404
View Details
3.77 Ct. Yellow Sapphire Ring, 18K White Gold 1
3.77 Ct. Yellow Sapphire Ring, 18K White Gold 2
3.77 Ct. Yellow Sapphire Ring, 18K White Gold 3
3.77 Ct. Yellow Sapphire Ring, 18K White Gold 4
3.77 Ct. Sapphire 18K White Gold ring
Item ID: 130009
$5,606
View Details
3.77 Ct. Yellow Sapphire Ring, 18K White Gold 1
3.77 Ct. Yellow Sapphire Ring, 18K White Gold 2
3.77 Ct. Yellow Sapphire Ring, 18K White Gold 3
3.77 Ct. Yellow Sapphire Ring, 18K White Gold 4
3.77 Ct. Sapphire 18K White Gold ring
Item ID: 176595
$4,144
View Details
2.02 Ct. Purplish Pink Sapphire Ring, 18K White Gold 1
2.02 Ct. Purplish Pink Sapphire Ring, 18K White Gold 2
2.02 Ct. Purplish Pink Sapphire Ring, 18K White Gold 3
2.02 Ct. Purplish Pink Sapphire Ring, 18K White Gold 4
2.02 Ct. Sapphire 18K White Gold ring
Item ID: 187671
$8,367
View Details
6.36 Ct. Bluish Green Sapphire Ring, 18K White Gold 1
6.36 Ct. Bluish Green Sapphire Ring, 18K White Gold 2
6.36 Ct. Bluish Green Sapphire Ring, 18K White Gold 3
6.36 Ct. Bluish Green Sapphire Ring, 18K White Gold 4
6.36 Ct. Sapphire 18K White Gold ring
Item ID: 194960
$13,756
View Details
1.57 Ct. Blue Sapphire Ring, 18K White Gold 1
1.57 Ct. Blue Sapphire Ring, 18K White Gold 2
1.57 Ct. Blue Sapphire Ring, 18K White Gold 3
1.57 Ct. Blue Sapphire Ring, 18K White Gold 4
1.57 Ct. Sapphire 18K White Gold ring
Item ID: 161390
$5,537
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: 127111
$2,950
View Details
0.48 Ct. Pink Sapphire Ring, 18K White Gold 1
0.48 Ct. Pink Sapphire Ring, 18K White Gold 2
0.48 Ct. Pink Sapphire Ring, 18K White Gold 3
0.48 Ct. Pink Sapphire Ring, 18K White Gold 4
0.48 Ct. Sapphire 18K White Gold ring
Item ID: 96784
$4,690
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: 165313
$7,011
View Details
2.76 Ct. Bi Color Sapphire Ring, 18K White Gold 1
2.76 Ct. Bi Color Sapphire Ring, 18K White Gold 2
2.76 Ct. Bi Color Sapphire Ring, 18K White Gold 3
2.76 Ct. Bi Color Sapphire Ring, 18K White Gold 4
2.76 Ct. Sapphire 18K White Gold ring
Item ID: 170498
$7,427
View Details
1.76 Ct. Green Sapphire Ring, 18K White Gold 1
1.76 Ct. Green Sapphire Ring, 18K White Gold 2
1.76 Ct. Green Sapphire Ring, 18K White Gold 3
1.76 Ct. Green Sapphire Ring, 18K White Gold 4
1.76 Ct. Sapphire 18K White Gold ring
Item ID: 184372
$3,913
View Details
1.33 Ct. Greyish Blue Sapphire Ring, 18K White Gold 1
1.33 Ct. Greyish Blue Sapphire Ring, 18K White Gold 2
1.33 Ct. Greyish Blue Sapphire Ring, 18K White Gold 3
1.33 Ct. Greyish Blue Sapphire Ring, 18K White Gold 4
1.33 Ct. Sapphire 18K White Gold ring
Item ID: 136479
$3,350
View Details
2.00 Ct. Purple Sapphire Ring, 18K White Gold 1
2.00 Ct. Purple Sapphire Ring, 18K White Gold 2
2.00 Ct. Purple Sapphire Ring, 18K White Gold 3
2.00 Ct. Purple Sapphire Ring, 18K White Gold 4
2.00 Ct. Sapphire 18K White Gold ring
Item ID: 171504
$7,682
View Details
2.93 Ct. Blue Sapphire Ring, 18K White Gold 1
2.93 Ct. Blue Sapphire Ring, 18K White Gold 2
2.93 Ct. Blue Sapphire Ring, 18K White Gold 3
2.93 Ct. Blue Sapphire Ring, 18K White Gold 4
2.93 Ct. Sapphire 18K White Gold ring
Item ID: 143084
$16,209
View Details
1.53 Ct. Pink Sapphire Ring, 18K White Gold 1
1.53 Ct. Pink Sapphire Ring, 18K White Gold 2
1.53 Ct. Pink Sapphire Ring, 18K White Gold 3
1.53 Ct. Pink Sapphire Ring, 18K White Gold 4
1.53 Ct. Sapphire 18K White Gold ring
Item ID: 166686
$6,278
View Details
1.22 Ct. Blue Sapphire Ring, 18K White Gold 1
1.22 Ct. Blue Sapphire Ring, 18K White Gold 2
1.22 Ct. Blue Sapphire Ring, 18K White Gold 3
1.22 Ct. Blue Sapphire Ring, 18K White Gold 4
1.22 Ct. Sapphire 18K White Gold ring
Item ID: 185616
$2,047
View Details
1.57 Ct. Bi Color Sapphire Ring, 18K White Gold 1
1.57 Ct. Bi Color Sapphire Ring, 18K White Gold 2
1.57 Ct. Bi Color Sapphire Ring, 18K White Gold 3
1.57 Ct. Bi Color Sapphire Ring, 18K White Gold 4
1.57 Ct. Sapphire 18K White Gold ring
Item ID: 183938
$6,097
View Details
1.33 Ct. Greyish Blue Sapphire Ring, 18K White Gold 1
1.33 Ct. Greyish Blue Sapphire Ring, 18K White Gold 2
1.33 Ct. Greyish Blue Sapphire Ring, 18K White Gold 3
1.33 Ct. Greyish Blue Sapphire Ring, 18K White Gold 4
1.33 Ct. Sapphire 18K White Gold ring
Item ID: 145871
$3,301
View Details
1.46 Ct. Violet Sapphire Ring, 18K White Gold 1
1.46 Ct. Violet Sapphire Ring, 18K White Gold 2
1.46 Ct. Violet Sapphire Ring, 18K White Gold 3
1.46 Ct. Violet Sapphire Ring, 18K White Gold 4
1.46 Ct. Sapphire 18K White Gold ring
Item ID: 196612
$3,698
View Details
1.32 Ct. Blue Sapphire Ring, 18K White Gold 1
1.32 Ct. Blue Sapphire Ring, 18K White Gold 2
1.32 Ct. Blue Sapphire Ring, 18K White Gold 3
1.32 Ct. Blue Sapphire Ring, 18K White Gold 4
1.32 Ct. Sapphire 18K White Gold ring
Item ID: 172431
$2,444
View Details
1
...
180181182183184185186
...
537

Our Customers Love Us

See what people are saying on Google and Verified Reviews