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
33888 results
Change view:
Sort by:
Select
Change view:
1.00 Ct. Greenish Blue Sapphire Ring, 18K White Gold 1
1.00 Ct. Greenish Blue Sapphire Ring, 18K White Gold 2
1.00 Ct. Greenish Blue Sapphire Ring, 18K White Gold 3
1.00 Ct. Greenish Blue Sapphire Ring, 18K White Gold 4
1.00 Ct. Sapphire 18K White Gold ring
Item ID: 110092
$3,851
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
$187,324
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: 110130
$36,087
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: 195009
$3,104
View Details
1.64 Ct. White Sapphire Ring, 18K White Gold 1
1.64 Ct. White Sapphire Ring, 18K White Gold 2
1.64 Ct. White Sapphire Ring, 18K White Gold 3
1.64 Ct. White Sapphire Ring, 18K White Gold 4
1.64 Ct. Sapphire 18K White Gold ring
Item ID: 212303
$4,918
View Details
0.89 Ct. Padparadscha Sapphire Ring, 18K White Gold 1
0.89 Ct. Padparadscha Sapphire Ring, 18K White Gold 2
0.89 Ct. Padparadscha Sapphire Ring, 18K White Gold 3
0.89 Ct. Padparadscha Sapphire Ring, 18K White Gold 4
0.89 Ct. Sapphire 18K White Gold ring
Item ID: 190650
$3,621
View Details
2.18 Ct. Blue Sapphire Ring, 18K White Gold 1
2.18 Ct. Blue Sapphire Ring, 18K White Gold 2
2.18 Ct. Blue Sapphire Ring, 18K White Gold 3
2.18 Ct. Blue Sapphire Ring, 18K White Gold 4
2.18 Ct. Sapphire 18K White Gold ring
Item ID: 132587
$9,245
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: 202619
$1,986
View Details
1.25 Ct. Bluish Green Sapphire Ring, 18K White Gold 1
1.25 Ct. Bluish Green Sapphire Ring, 18K White Gold 2
1.25 Ct. Bluish Green Sapphire Ring, 18K White Gold 3
1.25 Ct. Bluish Green Sapphire Ring, 18K White Gold 4
1.25 Ct. Sapphire 18K White Gold ring
Item ID: 165128
$4,572
View Details
2.52 Ct. Blue Sapphire Ring, 18K White Gold 1
2.52 Ct. Blue Sapphire Ring, 18K White Gold 2
2.52 Ct. Blue Sapphire Ring, 18K White Gold 3
2.52 Ct. Blue Sapphire Ring, 18K White Gold 4
2.52 Ct. Sapphire 18K White Gold ring
Item ID: 198740
$4,739
View Details
1.65 Ct. Purple Sapphire Ring, 18K White Gold 1
1.65 Ct. Purple Sapphire Ring, 18K White Gold 2
1.65 Ct. Purple Sapphire Ring, 18K White Gold 3
1.65 Ct. Purple Sapphire Ring, 18K White Gold 4
1.65 Ct. Sapphire 18K White Gold ring
Item ID: 171378
$5,234
View Details
1.20 Ct. Bluish Purple Sapphire Ring, 18K White Gold 1
1.20 Ct. Bluish Purple Sapphire Ring, 18K White Gold 2
1.20 Ct. Bluish Purple Sapphire Ring, 18K White Gold 3
1.20 Ct. Bluish Purple Sapphire Ring, 18K White Gold 4
1.20 Ct. Sapphire 18K White Gold ring
Item ID: 190719
$7,052
View Details
2.65 Ct. Yellow Sapphire Ring, 18K White Gold 1
2.65 Ct. Yellow Sapphire Ring, 18K White Gold 2
2.65 Ct. Yellow Sapphire Ring, 18K White Gold 3
2.65 Ct. Yellow Sapphire Ring, 18K White Gold 4
2.65 Ct. Sapphire 18K White Gold ring
Item ID: 96043
$3,632
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: 157490
$6,882
View Details
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: 96100
$3,678
View Details
1.12 Ct. Blue Sapphire Ring, 18K White Gold 1
1.12 Ct. Blue Sapphire Ring, 18K White Gold 2
1.12 Ct. Blue Sapphire Ring, 18K White Gold 3
1.12 Ct. Blue Sapphire Ring, 18K White Gold 4
1.12 Ct. Sapphire 18K White Gold ring
Item ID: 170409
$2,969
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: 96138
$14,778
View Details
1.54 Ct. Yellowish Green Sapphire Ring, 18K White Gold 1
1.54 Ct. Yellowish Green Sapphire Ring, 18K White Gold 2
1.54 Ct. Yellowish Green Sapphire Ring, 18K White Gold 3
1.54 Ct. Yellowish Green Sapphire Ring, 18K White Gold 4
1.54 Ct. Sapphire 18K White Gold ring
Item ID: 205879
$3,446
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: 132572
$1,698
View Details
1.09 Ct. Blue Sapphire Ring, 18K White Gold 1
1.09 Ct. Blue Sapphire Ring, 18K White Gold 2
1.09 Ct. Blue Sapphire Ring, 18K White Gold 3
1.09 Ct. Blue Sapphire Ring, 18K White Gold 4
1.09 Ct. Sapphire 18K White Gold ring
Item ID: 210094
$3,349
View Details
0.98 Ct. Purple Sapphire Ring, 18K White Gold 1
0.98 Ct. Purple Sapphire Ring, 18K White Gold 2
0.98 Ct. Purple Sapphire Ring, 18K White Gold 3
0.98 Ct. Purple Sapphire Ring, 18K White Gold 4
0.98 Ct. Sapphire 18K White Gold ring
Item ID: 132545
$3,112
View Details
0.84 Ct. Blue Sapphire Ring, 18K White Gold 1
0.84 Ct. Blue Sapphire Ring, 18K White Gold 2
0.84 Ct. Blue Sapphire Ring, 18K White Gold 3
0.84 Ct. Blue Sapphire Ring, 18K White Gold 4
0.84 Ct. Sapphire 18K White Gold ring
Item ID: 91601
$3,083
View Details
4.30 Ct. Blue Sapphire Ring, 18K White Gold 1
4.30 Ct. Blue Sapphire Ring, 18K White Gold 2
4.30 Ct. Blue Sapphire Ring, 18K White Gold 3
4.30 Ct. Blue Sapphire Ring, 18K White Gold 4
4.30 Ct. Sapphire 18K White Gold ring
Item ID: 206611
$15,875
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: 91611
$3,884
View Details
2.05 Ct. Greenish Blue Sapphire Ring, 18K White Gold 1
2.05 Ct. Greenish Blue Sapphire Ring, 18K White Gold 2
2.05 Ct. Greenish Blue Sapphire Ring, 18K White Gold 3
2.05 Ct. Greenish Blue Sapphire Ring, 18K White Gold 4
2.05 Ct. Sapphire 18K White Gold ring
Item ID: 214341
$4,207
View Details
2.65 Ct. Blue Sapphire Ring, 18K White Gold 1
2.65 Ct. Blue Sapphire Ring, 18K White Gold 2
2.65 Ct. Blue Sapphire Ring, 18K White Gold 3
2.65 Ct. Blue Sapphire Ring, 18K White Gold 4
2.65 Ct. Sapphire 18K White Gold ring
Item ID: 120274
$12,026
View Details
1.15 Ct. Bluish Green Sapphire Ring, 18K White Gold 1
1.15 Ct. Bluish Green Sapphire Ring, 18K White Gold 2
1.15 Ct. Bluish Green Sapphire Ring, 18K White Gold 3
1.15 Ct. Bluish Green Sapphire Ring, 18K White Gold 4
1.15 Ct. Sapphire 18K White Gold ring
Item ID: 199840
$3,258
View Details
3.16 Ct. Blue Sapphire Ring, 18K White Gold 1
3.16 Ct. Blue Sapphire Ring, 18K White Gold 2
3.16 Ct. Blue Sapphire Ring, 18K White Gold 3
3.16 Ct. Blue Sapphire Ring, 18K White Gold 4
3.16 Ct. Sapphire 18K White Gold ring
Item ID: 120276
$13,137
View Details
1.42 Ct. Greenish Blue Sapphire Ring, 18K White Gold 1
1.42 Ct. Greenish Blue Sapphire Ring, 18K White Gold 2
1.42 Ct. Greenish Blue Sapphire Ring, 18K White Gold 3
1.42 Ct. Greenish Blue Sapphire Ring, 18K White Gold 4
1.42 Ct. Sapphire 18K White Gold ring
Item ID: 203378
$3,319
View Details
1.03 Ct. Bluish Green Sapphire Ring, 18K White Gold 1
1.03 Ct. Bluish Green Sapphire Ring, 18K White Gold 2
1.03 Ct. Bluish Green Sapphire Ring, 18K White Gold 3
1.03 Ct. Bluish Green Sapphire Ring, 18K White Gold 4
1.03 Ct. Sapphire 18K White Gold ring
Item ID: 120289
$3,915
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
$3,886
View Details
44.85 Ct. Blue Sapphire Ring, 18K White Gold 1
44.85 Ct. Blue Sapphire Ring, 18K White Gold 2
44.85 Ct. Blue Sapphire Ring, 18K White Gold 3
44.85 Ct. Blue Sapphire Ring, 18K White Gold 4
44.85 Ct. Sapphire 18K White Gold ring
Item ID: 141028
$777,565
View Details
0.98 Ct. Green Sapphire Ring, 18K White Gold 1
0.98 Ct. Green Sapphire Ring, 18K White Gold 2
0.98 Ct. Green Sapphire Ring, 18K White Gold 3
0.98 Ct. Green Sapphire Ring, 18K White Gold 4
0.98 Ct. Sapphire 18K White Gold ring
Item ID: 199730
$2,772
View Details
3.01 Ct. Greenish Blue Sapphire Ring, 18K White Gold 1
3.01 Ct. Greenish Blue Sapphire Ring, 18K White Gold 2
3.01 Ct. Greenish Blue Sapphire Ring, 18K White Gold 3
3.01 Ct. Greenish Blue Sapphire Ring, 18K White Gold 4
3.01 Ct. Sapphire 18K White Gold ring
Item ID: 213911
$8,498
View Details
2.58 Ct. Blue Sapphire Ring, 18K White Gold 1
2.58 Ct. Blue Sapphire Ring, 18K White Gold 2
2.58 Ct. Blue Sapphire Ring, 18K White Gold 3
2.58 Ct. Blue Sapphire Ring, 18K White Gold 4
2.58 Ct. Sapphire 18K White Gold ring
Item ID: 177484
$14,227
View Details
1.21 Ct. Bluish Green Sapphire Ring, 18K White Gold 1
1.21 Ct. Bluish Green Sapphire Ring, 18K White Gold 2
1.21 Ct. Bluish Green Sapphire Ring, 18K White Gold 3
1.21 Ct. Bluish Green Sapphire Ring, 18K White Gold 4
1.21 Ct. Sapphire 18K White Gold ring
Item ID: 120639
$4,044
View Details
0.38 Ct. Green Sapphire Ring, 18K White Gold 1
0.38 Ct. Green Sapphire Ring, 18K White Gold 2
0.38 Ct. Green Sapphire Ring, 18K White Gold 3
0.38 Ct. Green Sapphire Ring, 18K White Gold 4
0.38 Ct. Sapphire 18K White Gold ring
Item ID: 171375
$3,160
View Details
0.60 Ct. Greyish Blue Sapphire Ring, 18K White Gold 1
0.60 Ct. Greyish Blue Sapphire Ring, 18K White Gold 2
0.60 Ct. Greyish Blue Sapphire Ring, 18K White Gold 3
0.60 Ct. Greyish Blue Sapphire Ring, 18K White Gold 4
0.60 Ct. Sapphire 18K White Gold ring
Item ID: 130501
$2,539
View Details
2.06 Ct. Blue Sapphire Ring, 18K White Gold 1
2.06 Ct. Blue Sapphire Ring, 18K White Gold 2
2.06 Ct. Blue Sapphire Ring, 18K White Gold 3
2.06 Ct. Blue Sapphire Ring, 18K White Gold 4
2.06 Ct. Sapphire 18K White Gold ring
Item ID: 182354
$5,291
View Details
1.31 Ct. Pink Sapphire Ring, 18K White Gold 1
1.31 Ct. Pink Sapphire Ring, 18K White Gold 2
1.31 Ct. Pink Sapphire Ring, 18K White Gold 3
1.31 Ct. Pink Sapphire Ring, 18K White Gold 4
1.31 Ct. Sapphire 18K White Gold ring
Item ID: 90867
$2,630
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: 191561
$10,095
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: 209125
$2,282
View Details
1.04 Ct. Bluish Green Sapphire Ring, 18K White Gold 1
1.04 Ct. Bluish Green Sapphire Ring, 18K White Gold 2
1.04 Ct. Bluish Green Sapphire Ring, 18K White Gold 3
1.04 Ct. Bluish Green Sapphire Ring, 18K White Gold 4
1.04 Ct. Sapphire 18K White Gold ring
Item ID: 191559
$1,832
View Details
5.07 Ct. Blue Sapphire Ring, 18K White Gold 1
5.07 Ct. Blue Sapphire Ring, 18K White Gold 2
5.07 Ct. Blue Sapphire Ring, 18K White Gold 3
5.07 Ct. Blue Sapphire Ring, 18K White Gold 4
5.07 Ct. Sapphire 18K White Gold ring
Item ID: 209110
$26,178
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: 187148
$3,913
View Details
5.21 Ct. Blue Sapphire Ring, 18K White Gold 1
5.21 Ct. Blue Sapphire Ring, 18K White Gold 2
5.21 Ct. Blue Sapphire Ring, 18K White Gold 3
5.21 Ct. Blue Sapphire Ring, 18K White Gold 4
5.21 Ct. Sapphire 18K White Gold ring
Item ID: 181586
$22,404
View Details
1.25 Ct. Bluish Green Sapphire Ring, 18K White Gold 1
1.25 Ct. Bluish Green Sapphire Ring, 18K White Gold 2
1.25 Ct. Bluish Green Sapphire Ring, 18K White Gold 3
1.25 Ct. Bluish Green Sapphire Ring, 18K White Gold 4
1.25 Ct. Sapphire 18K White Gold ring
Item ID: 187151
$2,757
View Details
0.36 Ct. Padparadscha Sapphire Ring, 18K White Gold 1
0.36 Ct. Padparadscha Sapphire Ring, 18K White Gold 2
0.36 Ct. Padparadscha Sapphire Ring, 18K White Gold 3
0.36 Ct. Padparadscha Sapphire Ring, 18K White Gold 4
0.36 Ct. Sapphire 18K White Gold ring
Item ID: 121001
$2,301
View Details
1.10 Ct. Yellowish Orange Sapphire Ring, 18K White Gold 1
1.10 Ct. Yellowish Orange Sapphire Ring, 18K White Gold 2
1.10 Ct. Yellowish Orange Sapphire Ring, 18K White Gold 3
1.10 Ct. Yellowish Orange Sapphire Ring, 18K White Gold 4
1.10 Ct. Sapphire 18K White Gold ring
Item ID: 187155
$2,454
View Details
1.24 Ct. Blue Sapphire Ring, 18K White Gold 1
1.24 Ct. Blue Sapphire Ring, 18K White Gold 2
1.24 Ct. Blue Sapphire Ring, 18K White Gold 3
1.24 Ct. Blue Sapphire Ring, 18K White Gold 4
1.24 Ct. Sapphire 18K White Gold ring
Item ID: 91663
$3,515
View Details
1.05 Ct. White Sapphire Ring, 18K White Gold 1
1.05 Ct. White Sapphire Ring, 18K White Gold 2
1.05 Ct. White Sapphire Ring, 18K White Gold 3
1.05 Ct. White Sapphire Ring, 18K White Gold 4
1.05 Ct. Sapphire 18K White Gold ring
Item ID: 209725
$2,305
View Details
1.27 Ct. Bluish Green Sapphire Ring, 18K White Gold 1
1.27 Ct. Bluish Green Sapphire Ring, 18K White Gold 2
1.27 Ct. Bluish Green Sapphire Ring, 18K White Gold 3
1.27 Ct. Bluish Green Sapphire Ring, 18K White Gold 4
1.27 Ct. Sapphire 18K White Gold ring
Item ID: 108893
$3,720
View Details
2.53 Ct. Green Sapphire Ring, 18K White Gold 1
2.53 Ct. Green Sapphire Ring, 18K White Gold 2
2.53 Ct. Green Sapphire Ring, 18K White Gold 3
2.53 Ct. Green Sapphire Ring, 18K White Gold 4
2.53 Ct. Sapphire 18K White Gold ring
Item ID: 183940
$7,499
View Details
0.95 Ct. Bluish Green Sapphire Ring, 18K White Gold 1
0.95 Ct. Bluish Green Sapphire Ring, 18K White Gold 2
0.95 Ct. Bluish Green Sapphire Ring, 18K White Gold 3
0.95 Ct. Bluish Green Sapphire Ring, 18K White Gold 4
0.95 Ct. Sapphire 18K White Gold ring
Item ID: 130809
$2,947
View Details
1.00 Ct. Yellow Sapphire Ring, 18K White Gold 1
1.00 Ct. Yellow Sapphire Ring, 18K White Gold 2
1.00 Ct. Yellow Sapphire Ring, 18K White Gold 3
1.00 Ct. Yellow Sapphire Ring, 18K White Gold 4
1.00 Ct. Sapphire 18K White Gold ring
Item ID: 209669
$2,738
View Details
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: 130761
$3,709
View Details
2.53 Ct. Green Sapphire Ring, 18K White Gold 1
2.53 Ct. Green Sapphire Ring, 18K White Gold 2
2.53 Ct. Green Sapphire Ring, 18K White Gold 3
2.53 Ct. Green Sapphire Ring, 18K White Gold 4
2.53 Ct. Sapphire 18K White Gold ring
Item ID: 179887
$4,770
View Details
1.51 Ct. Pink Sapphire Ring, 18K White Gold 1
1.51 Ct. Pink Sapphire Ring, 18K White Gold 2
1.51 Ct. Pink Sapphire Ring, 18K White Gold 3
1.51 Ct. Pink Sapphire Ring, 18K White Gold 4
1.51 Ct. Sapphire 18K White Gold ring
Item ID: 141275
$4,492
View Details
2.57 Ct. Peach Sapphire Ring, 18K White Gold 1
2.57 Ct. Peach Sapphire Ring, 18K White Gold 2
2.57 Ct. Peach Sapphire Ring, 18K White Gold 3
2.57 Ct. Peach Sapphire Ring, 18K White Gold 4
2.57 Ct. Sapphire 18K White Gold ring
Item ID: 142636
$5,953
View Details
52.27 Ct. Blue Sapphire Ring, 18K White Gold 1
52.27 Ct. Blue Sapphire Ring, 18K White Gold 2
52.27 Ct. Blue Sapphire Ring, 18K White Gold 3
52.27 Ct. Blue Sapphire Ring, 18K White Gold 4
52.27 Ct. Sapphire 18K White Gold ring
Item ID: 141293
$531,757
View Details
1
...
321322323324325326327
...
565

Our Customers Love Us

See what people are saying on Google and Verified Reviews