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
33576 results
Change view:
Sort by:
Select
Change view:
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: 211388
$24,542
View Details
1.84 Ct. Pink Sapphire Ring, 18K White Gold 1
1.84 Ct. Pink Sapphire Ring, 18K White Gold 2
1.84 Ct. Pink Sapphire Ring, 18K White Gold 3
1.84 Ct. Pink Sapphire Ring, 18K White Gold 4
1.84 Ct. Sapphire 18K White Gold ring
Item ID: 74140
$3,170
View Details
2.69 Ct. Bluish Green Sapphire Ring, 18K White Gold 1
2.69 Ct. Bluish Green Sapphire Ring, 18K White Gold 2
2.69 Ct. Bluish Green Sapphire Ring, 18K White Gold 3
2.69 Ct. Bluish Green Sapphire Ring, 18K White Gold 4
2.69 Ct. Sapphire 18K White Gold ring
Item ID: 210750
$6,462
View Details
3.02 Ct. Blue Sapphire Ring, 18K White Gold 1
3.02 Ct. Blue Sapphire Ring, 18K White Gold 2
3.02 Ct. Blue Sapphire Ring, 18K White Gold 3
3.02 Ct. Blue Sapphire Ring, 18K White Gold 4
3.02 Ct. Sapphire 18K White Gold ring
Item ID: 210739
$20,304
View Details
2.53 Ct. Blue Sapphire Ring, 18K White Gold 1
2.53 Ct. Blue Sapphire Ring, 18K White Gold 2
2.53 Ct. Blue Sapphire Ring, 18K White Gold 3
2.53 Ct. Blue Sapphire Ring, 18K White Gold 4
2.53 Ct. Sapphire 18K White Gold ring
Item ID: 210662
$9,697
View Details
3.83 Ct. Blue Sapphire Ring, 18K White Gold 1
3.83 Ct. Blue Sapphire Ring, 18K White Gold 2
3.83 Ct. Blue Sapphire Ring, 18K White Gold 3
3.83 Ct. Blue Sapphire Ring, 18K White Gold 4
3.83 Ct. Sapphire 18K White Gold ring
Item ID: 210689
$12,599
View Details
3.16 Ct. White Sapphire Ring, 18K White Gold 1
3.16 Ct. White Sapphire Ring, 18K White Gold 2
3.16 Ct. White Sapphire Ring, 18K White Gold 3
3.16 Ct. White Sapphire Ring, 18K White Gold 4
3.16 Ct. Sapphire 18K White Gold ring
Item ID: 210695
$5,264
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: 71762
$9,668
View Details
3.02 Ct. Padparadscha Sapphire Ring, 18K White Gold 1
3.02 Ct. Padparadscha Sapphire Ring, 18K White Gold 2
3.02 Ct. Padparadscha Sapphire Ring, 18K White Gold 3
3.02 Ct. Padparadscha Sapphire Ring, 18K White Gold 4
3.02 Ct. Sapphire 18K White Gold ring
Item ID: 210542
$14,260
View Details
3.02 Ct. Padparadscha Sapphire Ring, 18K White Gold 1
3.02 Ct. Padparadscha Sapphire Ring, 18K White Gold 2
3.02 Ct. Padparadscha Sapphire Ring, 18K White Gold 3
3.02 Ct. Padparadscha Sapphire Ring, 18K White Gold 4
3.02 Ct. Sapphire 18K White Gold ring
Item ID: 210536
$14,349
View Details
3.02 Ct. Orangish Yellow Sapphire Ring, 18K White Gold 1
3.02 Ct. Orangish Yellow Sapphire Ring, 18K White Gold 2
3.02 Ct. Orangish Yellow Sapphire Ring, 18K White Gold 3
3.02 Ct. Orangish Yellow Sapphire Ring, 18K White Gold 4
3.02 Ct. Sapphire 18K White Gold ring
Item ID: 210539
$7,452
View Details
2.31 Ct. Yellow Sapphire Ring, 18K White Gold 1
2.31 Ct. Yellow Sapphire Ring, 18K White Gold 2
2.31 Ct. Yellow Sapphire Ring, 18K White Gold 3
2.31 Ct. Yellow Sapphire Ring, 18K White Gold 4
2.31 Ct. Sapphire 18K White Gold ring
Item ID: 67945
$5,830
View Details
0.75 Ct. Blue Sapphire Ring, 18K White Gold 1
0.75 Ct. Blue Sapphire Ring, 18K White Gold 2
0.75 Ct. Blue Sapphire Ring, 18K White Gold 3
0.75 Ct. Blue Sapphire Ring, 18K White Gold 4
0.75 Ct. Sapphire 18K White Gold ring
Item ID: 68179
$2,384
View Details
3.99 Ct. Violet Sapphire Ring, 18K White Gold 1
3.99 Ct. Violet Sapphire Ring, 18K White Gold 2
3.99 Ct. Violet Sapphire Ring, 18K White Gold 3
3.99 Ct. Violet Sapphire Ring, 18K White Gold 4
3.99 Ct. Sapphire 18K White Gold ring
Item ID: 210313
$11,473
View Details
3.99 Ct. Violet Sapphire Ring, 18K White Gold 1
3.99 Ct. Violet Sapphire Ring, 18K White Gold 2
3.99 Ct. Violet Sapphire Ring, 18K White Gold 3
3.99 Ct. Violet Sapphire Ring, 18K White Gold 4
3.99 Ct. Sapphire 18K White Gold ring
Item ID: 210309
$9,578
View Details
2.60 Ct. Bi Color Sapphire Ring, 18K White Gold 1
2.60 Ct. Bi Color Sapphire Ring, 18K White Gold 2
2.60 Ct. Bi Color Sapphire Ring, 18K White Gold 3
2.60 Ct. Bi Color Sapphire Ring, 18K White Gold 4
2.60 Ct. Sapphire 18K White Gold ring
Item ID: 210341
$6,199
View Details
1.28 Ct. Green Sapphire Ring, 18K White Gold 1
1.28 Ct. Green Sapphire Ring, 18K White Gold 2
1.28 Ct. Green Sapphire Ring, 18K White Gold 3
1.28 Ct. Green Sapphire Ring, 18K White Gold 4
1.28 Ct. Sapphire 18K White Gold ring
Item ID: 180940
$3,069
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: 209891
$2,910
View Details
1.59 Ct. Blue Sapphire Ring, 18K White Gold 1
1.59 Ct. Blue Sapphire Ring, 18K White Gold 2
1.59 Ct. Blue Sapphire Ring, 18K White Gold 3
1.59 Ct. Blue Sapphire Ring, 18K White Gold 4
1.59 Ct. Sapphire 18K White Gold ring
Item ID: 203612
$6,696
View Details
3.22 Ct. Pink Sapphire Ring, 18K White Gold 1
3.22 Ct. Pink Sapphire Ring, 18K White Gold 2
3.22 Ct. Pink Sapphire Ring, 18K White Gold 3
3.22 Ct. Pink Sapphire Ring, 18K White Gold 4
3.22 Ct. Sapphire 18K White Gold ring
Item ID: 180530
$29,396
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: 209879
$2,467
View Details
2.32 Ct. Orangish Brown Sapphire Ring, 18K White Gold 1
2.32 Ct. Orangish Brown Sapphire Ring, 18K White Gold 2
2.32 Ct. Orangish Brown Sapphire Ring, 18K White Gold 3
2.32 Ct. Orangish Brown Sapphire Ring, 18K White Gold 4
2.32 Ct. Sapphire 18K White Gold ring
Item ID: 184585
$3,517
View Details
4.16 Ct. Peach Sapphire Ring, 18K White Gold 1
4.16 Ct. Peach Sapphire Ring, 18K White Gold 2
4.16 Ct. Peach Sapphire Ring, 18K White Gold 3
4.16 Ct. Peach Sapphire Ring, 18K White Gold 4
4.16 Ct. Sapphire 18K White Gold ring
Item ID: 209881
$9,097
View Details
2.80 Ct. Blue Sapphire Ring, 18K White Gold 1
2.80 Ct. Blue Sapphire Ring, 18K White Gold 2
2.80 Ct. Blue Sapphire Ring, 18K White Gold 3
2.80 Ct. Blue Sapphire Ring, 18K White Gold 4
2.80 Ct. Sapphire 18K White Gold ring
Item ID: 177780
$8,285
View Details
2.03 Ct. Purple Sapphire Ring, 18K White Gold 1
2.03 Ct. Purple Sapphire Ring, 18K White Gold 2
2.03 Ct. Purple Sapphire Ring, 18K White Gold 3
2.03 Ct. Purple Sapphire Ring, 18K White Gold 4
2.03 Ct. Sapphire 18K White Gold ring
Item ID: 181183
$11,653
View Details
3.48 Ct. Greyish Blue Sapphire Ring, 18K White Gold 1
3.48 Ct. Greyish Blue Sapphire Ring, 18K White Gold 2
3.48 Ct. Greyish Blue Sapphire Ring, 18K White Gold 3
3.48 Ct. Greyish Blue Sapphire Ring, 18K White Gold 4
3.48 Ct. Sapphire 18K White Gold ring
Item ID: 169973
$12,818
View Details
1.52 Ct. Bi Color Sapphire Ring, 18K White Gold 1
1.52 Ct. Bi Color Sapphire Ring, 18K White Gold 2
1.52 Ct. Bi Color Sapphire Ring, 18K White Gold 3
1.52 Ct. Bi Color Sapphire Ring, 18K White Gold 4
1.52 Ct. Sapphire 18K White Gold ring
Item ID: 209949
$2,287
View Details
3.05 Ct. Yellow Sapphire Ring, 18K White Gold 1
3.05 Ct. Yellow Sapphire Ring, 18K White Gold 2
3.05 Ct. Yellow Sapphire Ring, 18K White Gold 3
3.05 Ct. Yellow Sapphire Ring, 18K White Gold 4
3.05 Ct. Sapphire 18K White Gold ring
Item ID: 209963
$6,399
View Details
3.02 Ct. Violet Sapphire Ring, 18K White Gold 1
3.02 Ct. Violet Sapphire Ring, 18K White Gold 2
3.02 Ct. Violet Sapphire Ring, 18K White Gold 3
3.02 Ct. Violet Sapphire Ring, 18K White Gold 4
3.02 Ct. Sapphire 18K White Gold ring
Item ID: 195832
$4,026
View Details
1.52 Ct. Bi Color Sapphire Ring, 18K White Gold 1
1.52 Ct. Bi Color Sapphire Ring, 18K White Gold 2
1.52 Ct. Bi Color Sapphire Ring, 18K White Gold 3
1.52 Ct. Bi Color Sapphire Ring, 18K White Gold 4
1.52 Ct. Sapphire 18K White Gold ring
Item ID: 209975
$3,582
View Details
2.48 Ct. Blue Sapphire Ring, 18K White Gold 1
2.48 Ct. Blue Sapphire Ring, 18K White Gold 2
2.48 Ct. Blue Sapphire Ring, 18K White Gold 3
2.48 Ct. Blue Sapphire Ring, 18K White Gold 4
2.48 Ct. Sapphire 18K White Gold ring
Item ID: 181436
$9,859
View Details
3.07 Ct. Bi Color Sapphire Ring, 18K White Gold 1
3.07 Ct. Bi Color Sapphire Ring, 18K White Gold 2
3.07 Ct. Bi Color Sapphire Ring, 18K White Gold 3
3.07 Ct. Bi Color Sapphire Ring, 18K White Gold 4
3.07 Ct. Sapphire 18K White Gold ring
Item ID: 210029
$6,792
View Details
1.69 Ct. Bi Color Sapphire Ring, 18K White Gold 1
1.69 Ct. Bi Color Sapphire Ring, 18K White Gold 2
1.69 Ct. Bi Color Sapphire Ring, 18K White Gold 3
1.69 Ct. Bi Color Sapphire Ring, 18K White Gold 4
1.69 Ct. Sapphire 18K White Gold ring
Item ID: 209981
$4,190
View Details
1.76 Ct. Blue Sapphire Ring, 18K White Gold 1
1.76 Ct. Blue Sapphire Ring, 18K White Gold 2
1.76 Ct. Blue Sapphire Ring, 18K White Gold 3
1.76 Ct. Blue Sapphire Ring, 18K White Gold 4
1.76 Ct. Sapphire 18K White Gold ring
Item ID: 83461
$8,457
View Details
0.62 Ct. Blue Sapphire Ring, 18K White Gold 1
0.62 Ct. Blue Sapphire Ring, 18K White Gold 2
0.62 Ct. Blue Sapphire Ring, 18K White Gold 3
0.62 Ct. Blue Sapphire Ring, 18K White Gold 4
0.62 Ct. Sapphire 18K White Gold ring
Item ID: 207842
$3,097
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: 207772
$5,423
View Details
3.07 Ct. Bi Color Sapphire Ring, 18K White Gold 1
3.07 Ct. Bi Color Sapphire Ring, 18K White Gold 2
3.07 Ct. Bi Color Sapphire Ring, 18K White Gold 3
3.07 Ct. Bi Color Sapphire Ring, 18K White Gold 4
3.07 Ct. Sapphire 18K White Gold ring
Item ID: 207818
$10,245
View Details
1.17 Ct. Blue Sapphire Ring, 18K White Gold 1
1.17 Ct. Blue Sapphire Ring, 18K White Gold 2
1.17 Ct. Blue Sapphire Ring, 18K White Gold 3
1.17 Ct. Blue Sapphire Ring, 18K White Gold 4
1.17 Ct. Sapphire 18K White Gold ring
Item ID: 171867
$2,119
View Details
1.07 Ct. Blue Sapphire Ring, 18K White Gold 1
1.07 Ct. Blue Sapphire Ring, 18K White Gold 2
1.07 Ct. Blue Sapphire Ring, 18K White Gold 3
1.07 Ct. Blue Sapphire Ring, 18K White Gold 4
1.07 Ct. Sapphire 18K White Gold ring
Item ID: 212997
$8,594
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: 207898
$8,437
View Details
0.94 Ct. Blue Sapphire Ring, 18K White Gold 1
0.94 Ct. Blue Sapphire Ring, 18K White Gold 2
0.94 Ct. Blue Sapphire Ring, 18K White Gold 3
0.94 Ct. Blue Sapphire Ring, 18K White Gold 4
0.94 Ct. Sapphire 18K White Gold ring
Item ID: 120796
$2,637
View Details
0.73 Ct. Greenish Blue Sapphire Ring, 18K White Gold 1
0.73 Ct. Greenish Blue Sapphire Ring, 18K White Gold 2
0.73 Ct. Greenish Blue Sapphire Ring, 18K White Gold 3
0.73 Ct. Greenish Blue Sapphire Ring, 18K White Gold 4
0.73 Ct. Sapphire 18K White Gold ring
Item ID: 208246
$2,352
View Details
1.88 Ct. Bluish Green Sapphire Ring, 18K White Gold 1
1.88 Ct. Bluish Green Sapphire Ring, 18K White Gold 2
1.88 Ct. Bluish Green Sapphire Ring, 18K White Gold 3
1.88 Ct. Bluish Green Sapphire Ring, 18K White Gold 4
1.88 Ct. Sapphire 18K White Gold ring
Item ID: 208170
$5,890
View Details
1.88 Ct. Bluish Green Sapphire Ring, 18K White Gold 1
1.88 Ct. Bluish Green Sapphire Ring, 18K White Gold 2
1.88 Ct. Bluish Green Sapphire Ring, 18K White Gold 3
1.88 Ct. Bluish Green Sapphire Ring, 18K White Gold 4
1.88 Ct. Sapphire 18K White Gold ring
Item ID: 208166
$6,589
View Details
1.18 Ct. Blue Sapphire Ring, 18K White Gold 1
1.18 Ct. Blue Sapphire Ring, 18K White Gold 2
1.18 Ct. Blue Sapphire Ring, 18K White Gold 3
1.18 Ct. Blue Sapphire Ring, 18K White Gold 4
1.18 Ct. Sapphire 18K White Gold ring
Item ID: 137328
$6,197
View Details
0.65 Ct. Blue Sapphire Ring, 18K White Gold 1
0.65 Ct. Blue Sapphire Ring, 18K White Gold 2
0.65 Ct. Blue Sapphire Ring, 18K White Gold 3
0.65 Ct. Blue Sapphire Ring, 18K White Gold 4
0.65 Ct. Sapphire 18K White Gold ring
Item ID: 208045
$2,146
View Details
0.50 Ct. Blue Sapphire Ring, 18K White Gold 1
0.50 Ct. Blue Sapphire Ring, 18K White Gold 2
0.50 Ct. Blue Sapphire Ring, 18K White Gold 3
0.50 Ct. Blue Sapphire Ring, 18K White Gold 4
0.50 Ct. Sapphire 18K White Gold ring
Item ID: 208053
$2,042
View Details
1.60 Ct. Bluish Green Sapphire Ring, 18K White Gold 1
1.60 Ct. Bluish Green Sapphire Ring, 18K White Gold 2
1.60 Ct. Bluish Green Sapphire Ring, 18K White Gold 3
1.60 Ct. Bluish Green Sapphire Ring, 18K White Gold 4
1.60 Ct. Sapphire 18K White Gold ring
Item ID: 208803
$3,412
View Details
2.71 Ct. Blue Sapphire Ring, 18K White Gold 1
2.71 Ct. Blue Sapphire Ring, 18K White Gold 2
2.71 Ct. Blue Sapphire Ring, 18K White Gold 3
2.71 Ct. Blue Sapphire Ring, 18K White Gold 4
2.71 Ct. Sapphire 18K White Gold ring
Item ID: 208807
$9,741
View Details
5.85 Ct. Blue Sapphire Ring, 18K White Gold 1
5.85 Ct. Blue Sapphire Ring, 18K White Gold 2
5.85 Ct. Blue Sapphire Ring, 18K White Gold 3
5.85 Ct. Blue Sapphire Ring, 18K White Gold 4
5.85 Ct. Sapphire 18K White Gold ring
Item ID: 159560
$19,199
View Details
5.85 Ct. Blue Sapphire Ring, 18K White Gold 1
5.85 Ct. Blue Sapphire Ring, 18K White Gold 2
5.85 Ct. Blue Sapphire Ring, 18K White Gold 3
5.85 Ct. Blue Sapphire Ring, 18K White Gold 4
5.85 Ct. Sapphire 18K White Gold ring
Item ID: 150530
$17,135
View Details
0.96 Ct. Greyish Blue Sapphire Ring, 18K White Gold 1
0.96 Ct. Greyish Blue Sapphire Ring, 18K White Gold 2
0.96 Ct. Greyish Blue Sapphire Ring, 18K White Gold 3
0.96 Ct. Greyish Blue Sapphire Ring, 18K White Gold 4
0.96 Ct. Sapphire 18K White Gold ring
Item ID: 198242
$3,623
View Details
3.07 Ct. Green Sapphire Ring, 18K White Gold 1
3.07 Ct. Green Sapphire Ring, 18K White Gold 2
3.07 Ct. Green Sapphire Ring, 18K White Gold 3
3.07 Ct. Green Sapphire Ring, 18K White Gold 4
3.07 Ct. Sapphire 18K White Gold ring
Item ID: 208777
$7,198
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: 141716
$5,331
View Details
1.16 Ct. Blue Sapphire Ring, 18K White Gold 1
1.16 Ct. Blue Sapphire Ring, 18K White Gold 2
1.16 Ct. Blue Sapphire Ring, 18K White Gold 3
1.16 Ct. Blue Sapphire Ring, 18K White Gold 4
1.16 Ct. Sapphire 18K White Gold ring
Item ID: 208701
$3,344
View Details
0.75 Ct. Bluish Green Sapphire Ring, 18K White Gold 1
0.75 Ct. Bluish Green Sapphire Ring, 18K White Gold 2
0.75 Ct. Bluish Green Sapphire Ring, 18K White Gold 3
0.75 Ct. Bluish Green Sapphire Ring, 18K White Gold 4
0.75 Ct. Sapphire 18K White Gold ring
Item ID: 208651
$2,538
View Details
0.94 Ct. Blue Sapphire Ring, 18K White Gold 1
0.94 Ct. Blue Sapphire Ring, 18K White Gold 2
0.94 Ct. Blue Sapphire Ring, 18K White Gold 3
0.94 Ct. Blue Sapphire Ring, 18K White Gold 4
0.94 Ct. Sapphire 18K White Gold ring
Item ID: 120900
$2,803
View Details
1.10 Ct. Bluish Green Sapphire Ring, 18K White Gold 1
1.10 Ct. Bluish Green Sapphire Ring, 18K White Gold 2
1.10 Ct. Bluish Green Sapphire Ring, 18K White Gold 3
1.10 Ct. Bluish Green Sapphire Ring, 18K White Gold 4
1.10 Ct. Sapphire 18K White Gold ring
Item ID: 208351
$4,541
View Details
2.00 Ct. Greenish Blue Sapphire Ring, 18K White Gold 1
2.00 Ct. Greenish Blue Sapphire Ring, 18K White Gold 2
2.00 Ct. Greenish Blue Sapphire Ring, 18K White Gold 3
2.00 Ct. Greenish Blue Sapphire Ring, 18K White Gold 4
2.00 Ct. Sapphire 18K White Gold ring
Item ID: 208599
$3,771
View Details
0.57 Ct. Purple Sapphire Ring, 18K White Gold 1
0.57 Ct. Purple Sapphire Ring, 18K White Gold 2
0.57 Ct. Purple Sapphire Ring, 18K White Gold 3
0.57 Ct. Purple Sapphire Ring, 18K White Gold 4
0.57 Ct. Sapphire 18K White Gold ring
Item ID: 208605
$1,885
View Details
1
...
265266267268269270271
...
560

Our Customers Love Us

See what people are saying on Google and Verified Reviews