Lot 0447

Vintage 2 1/2" Chinese Bi

Similar Sale History

View More Items in Necklaces & Pendants

Sold

Vintage Chinese Jade Bi Necklace: Vintage Chinese Jade Bi Necklace. Comprised of alternating green bi discs and carved white jade plaques. The largest plaque stamped STERLING. Discs range in size from 1-1/2" diameter to 1" diameter. L

2023Vintage Chinese Jade Bi NecklaceSee Sold Price

Sold

Vintage Chinese Jade Bi Disk Cord Necklace: Vintage Chinese Jade Bi disk cord necklace, comprised of seven round jade bi disk and two carved barrel end beads strung on cord. Central jade bi disk measures 2.0"L x 2.0"W x 0.25"H. Necklace: approx

2022Vintage Chinese Jade Bi Disk Cord NecklaceSee Sold Price

Sold

Vintage Chinese Hetian Jade Bi Pendant: Vintage Chinese Hetian Jade Bi Pendant Dimension: 121x87x10(mm)4.76x3.43x0.39(inches) Weight:0.33 lbs/149 g The wooden stand not include

2017Vintage Chinese Hetian Jade Bi PendantSee Sold Price

Sold

Vintage Chinese Pink Quartz Bi Pendant: Vintage Chinese Pink Quartz Bi Pendant, size: 1.75"

2016Vintage Chinese Pink Quartz Bi PendantSee Sold Price

Sold

2016Vintage Chinese Pink Quartz Bi PendantSee Sold Price

Sold

Vintage Chinese Hetian Jade Jade Bi: Vintage Chinese Hetian Jade Jade Bi Dimension: 119 x 119 x 4 (mm) 4.69 x 4.69 x 0.16(inches) Weight: 0.21 lbs/96 g The wooden stand no included.

2021Vintage Chinese Hetian Jade Jade BiSee Sold Price

Sold

Vintage Chinese Hetian Jade Nephrite Bi: Vintage Chinese Hetian Jade Nephrite Bi Dimension: 73 x 62 x 5 (mm) 2.87 x 2.44 x 0.2 (inches) Weight: 0.09 lbs/40 g

2021Vintage Chinese Hetian Jade Nephrite BiSee Sold Price

Sold

Vintage Chinese Silver Enamel Jadeite Bi Disk Necklace Earrings Suite: This is a vintage Chinese silver necklace and earrings set dating to the early 20th century. Each piece features green jadeite beads and bi disks interspersed with carved amethyst beads. The necklace

2022Vintage Chinese Silver Enamel Jadeite Bi Disk Necklace Earrings SuiteSee Sold Price

Sold

Hand Carved Vintage Chinese Round Hetian Jade Lucky Bi: Hand Carved Vintage Chinese Round Hetian Jade Lucky Bi Dimension: 82 x 82 x 6(mm) 3.23 x 3.23 x 0.24(inches) Weight 0.16 lbs/73 g The wooden stand no included.

2022Hand Carved Vintage Chinese Round Hetian Jade Lucky BiSee Sold Price

Sold

Vintage Chinese Hetian Jade Semicircle Jade Bi: Vintage Chinese Hetian Jade Semicircle Jade Bi Dimension: 82 x 29 x 5(mm) 3.23 x 1.14 x 0.2(inches) Weight: 0.05 lbs/24 g The wooden stand no included.

2021Vintage Chinese Hetian Jade Semicircle Jade BiSee Sold Price

Sold

Vintage Chinese Hetian Jade Double Dragon Jade Bi: Vintage Chinese Hetian Jade Double Dragon Jade Bi Dimension: 192 x 115 x 7(mm) 7.56 x 4.53 x 0.27(inches) Weight : 0.60 lbs/272 g The wooden stand no included.

2021Vintage Chinese Hetian Jade Double Dragon Jade BiSee Sold Price

Sold

Openwork Vintage Chinese Hetian Jade Chi Dragon Jade Bi: Openwork Vintage Chinese Hetian Jade Chi Dragon Jade Bi Dimension: 95 x 65 (mm) 3.74 x 2.56(inches) Weight 0.14 lbs/65 g The wooden stand no included.

2022Openwork Vintage Chinese Hetian Jade Chi Dragon Jade BiSee Sold Price

Sold

Vintage Chinese Gilt Gold Hetian Jade Chi Dragons Bi: Vintage Chinese Gilt Gold Hetian Jade Chi Dragons Bi Dimension: 135 x 135 x 21(mm) 5.31 x 5.31 x 0.83 (inches) Weight: 1.08 lbs/491 g The wooden stand no included.

2018Vintage Chinese Gilt Gold Hetian Jade Chi Dragons BiSee Sold Price

Sold

Vintage 14kt Yellow Gold & Jade Chinese Pendant: Vintage 14kt Yellow Gold & Jade Chinese Pendant. Jade bi disk with Chinese character. Measures 1.75 inches in length.

2016Vintage 14kt Yellow Gold & Jade Chinese PendantSee Sold Price

Sold

Old Chinese Hetian Jade Dragon Head Half Round Jade Bi: Vintage Chinese Hetian Jade Dragon Head Half Round Jade Bi Dimension: 168 x 63 x 7(mm) 6.61 x 2.48 x 0.28(inches) Weight 0.28 lbs/125 g The wooden stand no included.

2021Old Chinese Hetian Jade Dragon Head Half Round Jade BiSee Sold Price

Sold

FINE CHINESE CARVED JADE & CARNELIAN 14K NECKLACE: A collection of antique and vintage jade bi and carvings, with carnelian accent beads, all set in 14k yellow gold. Dimensions: L 15.5" Pendant: L 2" x W 2.75" Total weight: 48.2 dwt Condition: Appears

2021FINE CHINESE CARVED JADE & CARNELIAN 14K NECKLACESee Sold Price

Related Necklaces & Pendants

Vintage Chinese Handcrafted Nephrite Buddha Plate: Size: 12 cm - 1.3 cm. Weight 236 g. Materials: Jade. Condition: It has a look from a bygone era. A vintage-inspired statue meticulously hand-carved from natural jade, featuring the revered figure of B

7 days LeftVintage Chinese Handcrafted Nephrite Buddha Plate

$120

Vintage Chinese Symbol Clasp Cloisonne & Crystals Beaded Necklace: Vintage Chinese Symbol Clasp Flowers Cloisonne Enamel & Faceted Green Crystals Beaded Necklace . Unmarked. For measures please refer to the pictures taken with a measure tape. Weight: 55 Grams. This i

2 days LeftVintage Chinese Symbol Clasp Cloisonne & Crystals Beaded Necklace

$20

Vintage Chinese carved yellow jadeite Pixiu pendant with silky adjustable strap necklace.: Vintage Chinese carved yellow jadeite Pixiu pendant with silky adjustable strap necklace. Unmarked. For measures please refer to the pictures taken with a measuring tape. Weight: 25 Grams . This is a

2 days LeftVintage Chinese carved yellow jadeite Pixiu pendant with silky adjustable strap necklace.

$20

Openwork Vintage Chinese Hetian Jade Carved Fortune Dragon Pendant: Openwork Vintage Chinese Hetian Jade Carved Fortune Dragon PendantDimension:70 x 47 x 7(mm)2.75 x 1.85 x 0.27(inches) Weight:0.08 lbs/ 39 g

2 days LeftOpenwork Vintage Chinese Hetian Jade Carved Fortune Dragon Pendant

$600

Vintage Chinese Hetian Jade Phoenix Pendant: Vintage Chinese Hetian Jade Phoenix PendantDimension:60 x 60 x 8(mm)2.36 x 2.36 x 0.31(inches) Weight:0.14 lbs/ 65 g

2 days LeftVintage Chinese Hetian Jade Phoenix Pendant

$600

Vintage Chinese Hetian Jade Carved Three Kids Pendant: Vintage Chinese Hetian Jade Carved Three Kids PendantDimension:83 x 47 x 34(mm)3.27 x 1.85 x 1.34(inches) Weight:0.30lbs/137g

2 days LeftVintage Chinese Hetian Jade Carved Three Kids Pendant

$1,250

Vintage Chinese Hetian Jade Carved Rabbit Pendant: Vintage Chinese Hetian Jade Carved Rabbit PendantDimension:38 x 22 x 16(mm)1.50 x 0.87 x 0.63(inches) Weight:0.05lbs/24g

2 days LeftVintage Chinese Hetian Jade Carved Rabbit Pendant

$90

Vintage Chinese Gilt Gold Red Copper Offical Token: Vintage Chinese Gilt Gold Red Copper Offical Token Dimension:93 x 99 x 7(mm)3.66 x 3.90 x 0.28(inches) Weight:0.84 lbs/382 g The wooden stand not included.

2 days LeftVintage Chinese Gilt Gold Red Copper Offical Token

$100

Vintage Chinese Hetian Jade Carved Three Beast Pendant: Vintage Chinese Hetian Jade Carved Three Beast PendantDimension:98 x 55 x 29(mm)3.86 x 2.17 x 1.14(inches) Weight:0.32lbs/143g

2 days LeftVintage Chinese Hetian Jade Carved Three Beast Pendant

$1,250

Vintage Chinese Hetian Jade Dragon Carved Pendant: Size: 7.8 cm - 6 cm - 1 cm. Weight 80 g. Materials: Hetian jade. Condition: It has a look from a bygone era. Enchanting vintage style Chinese hand-carved dragon pendant. Crafted from hetian green jade

7 days LeftVintage Chinese Hetian Jade Dragon Carved Pendant

$140

Vintage Chinese Handcrafted Jade Phoenix Talisman: Size: 8.7 cm - 5.3 cm - 0.7 cm. Weight 70 g. Materials: Jade. Condition: Looks like vintage. Meticulously crafted from jade, this exquisite vintage style pendant showcases a delicately carved phoenix,

7 days LeftVintage Chinese Handcrafted Jade Phoenix Talisman

$60

Exquisite Chinese Vintage Grade A icy jadeite jade beads necklace: Title: Exquisite Chinese Vintage Grade A icy jadeite jade beads necklace Description: Exquisite Chinese Vintage Grade A icy jadeite jade beads necklace A mesmerizing icy jadeite jade bead necklace. Cr

5 days LeftExquisite Chinese Vintage Grade A icy jadeite jade beads necklace

$440

Vintage-Inspired Dragon Miao Silver Amulet Pendant: Size: Height 4.5 cm - Width 3.5 cm - Thickness 0.5 cm. Materials: Miao silver (alloy of tin with copper or zinc). Condition: Looks like vintage. This is a vintage style Chinese amulet handmade of Miao

7 days LeftVintage-Inspired Dragon Miao Silver Amulet Pendant

$60

Chinese Rare Handmade Meteorite Amulet Figurine: Size: Length 8.7 cm. Materials: Meteorite stone. Condition: Looks like vintage. Hongshan culture style meteorite stone amulet. The amulet is shaped like a flying fish, with a long, slender body, a poi

7 days LeftChinese Rare Handmade Meteorite Amulet Figurine

$60

Vintage-Style Amulet Miao Silver Feng Shui Pendant: Size: Height 6 cm - Width 3.8 cm - Thickness 0.5 cm. Materials: Miao silver (alloy of tin with copper or zinc). Condition: Appears to have a classic aesthetic. This is a vintage style Chinese amulet h

7 days LeftVintage-Style Amulet Miao Silver Feng Shui Pendant

$60

Vintage-Style Buddha Tibetan Silver Amulet Pendant: Size: Height 7 cm - Width 4 cm - Thickness 1 cm. Weight 79 g. Materials: Tibetan silver (alloy of tin with copper or zinc). Condition: Looks like vintage. This is a vintage style Chinese amulet handma

7 days LeftVintage-Style Buddha Tibetan Silver Amulet Pendant

$60

More Items in Chinese Necklaces & Pendants

Top Dragon Stone King Green Extra Large Extra Thick Jadeite Beads 108pcs: Top Dragon Stone King Green Extra Large Extra Thick Jadeite Beads 108pcs High 1.7CM wide 1.7cm weight: 895.5g Freight: 1.International Freight: Foreign shipping charges are determined by destination.

4 days LeftTop Dragon Stone King Green Extra Large Extra Thick Jadeite Beads 108pcs

£1,800

A Fine Chinese Pebble Pendant: A Fine Chinese Hardstone Pebble Pendant. Measure 2" Long. // Provenance: PRIVATE ESTATE CENTRAL FLORIDA Please copy and paste the URL link below to review our Terms and Conditions for bidding

18 hrs LeftA Fine Chinese Pebble Pendant

$20

CHINESE ANTIQUE CAT'S EYE BEADS RORAL COURT NECKLACE: THIS ITEMThe necklace: L: 17.3 in/43.5 cm The box: H: 19.8 in/50 cm W: 12 in/30 cm D: 2.5 in/6 cm Weight: 3.1 kg. FEATURES1. Marked DA QING QIAN LONG NIAN ZHI (Made in the years of Qian Long (1836-18

Jun 22, 2024CHINESE ANTIQUE CAT'S EYE BEADS RORAL COURT NECKLACE

$500

Ming Dynasty Hetian jade handheld: Ming Dynasty Hetian jade handheld Height2cm Width 1.4cm weight 190g Freight: 1.International Freight: Foreign shipping charges are determined by destination. 2.Photos, descriptions and valuations have

4 days LeftMing Dynasty Hetian jade handheld

£200

Carved Jade Dragon Pendant: Carved jade dragon pendant. Measures 3.5" x 2". Domestic shipping $8.

Jun 11, 2024Carved Jade Dragon Pendant

$40

A NECKLACE IN BLACK BLUE: THIS ITEM L: 9.5 in/24 cm W: 3 in/7.5 cm Weight: 47 g.

Jun 22, 2024A NECKLACE IN BLACK BLUE

Tibetan Bronze Nine Palaces and Bagua Waist Card: Tibetan Bronze Nine Palaces and Bagua Waist Card Freight: 1.International Freight: Foreign shipping charges are determined by destination. 2.Photos, descriptions and valuations have been meticulously

4 days LeftTibetan Bronze Nine Palaces and Bagua Waist Card

£100

Old Chinese Hetian Jade Lucky Pendant - Cong: Old Chinese Hetian Jade Lucky Pendant - CongDimension:69 x 16 x 16(mm)2.72 x 0.63 x 0.63(inches) Weight:0.10 lbs/47 g

2 days LeftOld Chinese Hetian Jade Lucky Pendant - Cong

$80

Old Chinese Hetian Jade Lucky Pendant: Old Chinese Hetian Jade Lucky Pendant Dimension:95 x 30(mm)3.74 x 1.18 (inches) Weight:0.34lbs/153g

2 days LeftOld Chinese Hetian Jade Lucky Pendant

$300

Natural Light Edison Pearls: Perfect circle, white and pink inside, super strong light, almost flawless, atmospheric pendant

2 days LeftNatural Light Edison Pearls

$10

Pearl Purple Pendant: Pearls 11 to 12mm, perfectly round, extremely bright, almost flawless!

2 days LeftPearl Purple Pendant

$10

Pure natural flower amber pendant: Pure natural flower amber pendant High 5.4CM wide 2.9cm weight: 38.6g Freight: 1.International Freight: Foreign shipping charges are determined by destination. 2.Photos, descriptions and valuations ha

4 days LeftPure natural flower amber pendant

£50

Old Tibetan agate necklace: Old Tibetan agate necklace weight Freight: 1.International Freight: Foreign shipping charges are determined by destination. 2.Photos, descriptions and valuations have been meticulously prepared by ful

4 days LeftOld Tibetan agate necklace

£300

108 Turquoise Chao Beads: 108 Turquoise Chao Beads High 123CM wide 1.5cm weight: 1350g Freight: 1.International Freight: Foreign shipping charges are determined by destination. 2.Photos, descriptions and valuations have been m

4 days Left108 Turquoise Chao Beads

£400

Carved Jade Cicada Shaped Pendant: Carved jade cicada insect shaped pendant. Measures 2.5" x 1.5". Domestic shipping $8.

Jun 11, 2024Carved Jade Cicada Shaped Pendant

$50

Openwork Chinese Natural Hetian Jade Carved Kid & Swan Pendant: Openwork Chinese Natural Hetian Jade Carved Kid & Swan PendantDimension:54 x 51 x 19 (mm)2.12 x 2.01 x 0.75 (inches) Weight:0.12 lbs/ 54 g

2 days LeftOpenwork Chinese Natural Hetian Jade Carved Kid & Swan Pendant

$300

Recommended Jewelry

1.42ctw Diamond Earrings in 14K Gold: Estimated Retail Replacement Value: $25,200.00Ref: WAG14400Item no.: EJZ003Specification:Gold Content: Solid 14K White GoldWeight of Item: 1.20 gramsCountry Made: U.S.A Main Gemstone: Natural Diamond

Live Now1.42ctw Diamond Earrings in 14K Gold

See Sold Price

Circa 1923 Art Deco 1.83 Carat Diamond Engagement Ring in 18K White Gold: TITLE: 1923 Art Deco 1.83 Carat Diamond 18K White Gold Engagement Ring - A stunning 1920s ar t deco era diamond engagement ring, crafted in 18k whitegold. The center diamond on this ring is a 1.83 car

21 hrs LeftCirca 1923 Art Deco 1.83 Carat Diamond Engagement Ring in 18K White Gold

$2,300

A STRAND OF ART DECO ANTIQUE NECKLACE FACETTED QUARTZ CRYSTAL 18": THE CRYSTAL IS STRUNG ON A STERLING CHAIN, WITH A STERLING CLASP AND ONYX SPACERS. ONE SPACER IS MISSING. WE TEST ALL STONES WITH THE PRESIDIUM GEM TESTER OR BY ANY OTHER APPROPRIATE TESTS FOR OTHER N

2 days LeftA STRAND OF ART DECO ANTIQUE NECKLACE FACETTED QUARTZ CRYSTAL 18"

$45

14K Yellow Gold Carnelian Intaglio Signet Ring: 14K Yellow Gold Carnelian Intaglio Signet Ring, featuring one carved carnelian intaglio oval with griffin head and motto "FOLLOW ME", marked: "14K" with maker's mark. Measuring approx. US size 7 1/4,

Jun 09, 202414K Yellow Gold Carnelian Intaglio Signet Ring

$1,100

A BEAUTIFUL VINTAGE JUDITH LIEBER MINI PURSE ON NECKLACE: THE JUDITH LIEBER MINI PURSE, FOR PILLS, PERFUME OR CHANGE, MADE FOR NIEMAN MARCUS. IT IS 2.5 INCHES LONG AND 2.25 INCHES WIDE. THE CHAIN IS 28" LONG. WE PROVIDE IN-HOUSE/COMBINED SHIPPING AND A SEAML

2 days LeftA BEAUTIFUL VINTAGE JUDITH LIEBER MINI PURSE ON NECKLACE

$65

A GREAT HUGE 1970'S VINTAGE NECKLACE ZODIAC SIGN AQUARIUS 34": WHAT A GREAT 1970S PIECE! IT IS OF BEAUTIFUL QUALITY AND CONDITION. THE NECKLACE IS 34" LONG AND THE PENDANT IS 3.5" WIDE. WE TEST ALL STONES WITH THE PRESIDIUM GEM TESTER OR BY ANY OTHER APPROPRIATE

2 days LeftA GREAT HUGE 1970'S VINTAGE NECKLACE ZODIAC SIGN AQUARIUS 34"

$110

2 LARGE ANTIQUE SASH PINS: THE 2 ANTIQUE SASH PINS MEASURE 2.4 AND 2.8" LONG. WE PROVIDE IN-HOUSE/COMBINED SHIPPING AND A SEAMLESS CHECKOUT PROCESS.

2 days Left2 LARGE ANTIQUE SASH PINS

$40

LOT OF TWO VINTAGE RHINESTONE BRACELETS 7" EACH: ONE BRACELET IS RED AND THE OTHER IS TOPAZ YELLOW. PRONG ET MID CENTURY VINTAGE. WE PROVIDE IN-HOUSE/COMBINED SHIPPING FOR YOUR CONVENIENCE.

2 days LeftLOT OF TWO VINTAGE RHINESTONE BRACELETS 7" EACH

$40

LOT OF TWO STERLING VINTAGE BROOCHES, ONE ENAMELED ANIMAL THEME: THE LEAF PIN IS MARKED ICELAIN STERLING. IT IS 2.25 INCHS LONG.THE ENAMELED BROOCH IS MARKED 925. IT IS BEAUTIFULLY ENAMELED. IT I 2.75 INCHES LONG. TOTAL WEIGHT OF BOTH IS 20 GRAMS.WE PROVIDE IN-HOUS

2 days LeftLOT OF TWO STERLING VINTAGE BROOCHES, ONE ENAMELED ANIMAL THEME

$40

A SUPERB MARCEL BOUCHER 1950S VINTAGE NECKLACE FUSCIA CRYSTAL: THE EXQUISITE 3 STRAND NECKLACE IS SO ELEGANT. THE CRYSTALS ARE AN UNUSUAL COLOR A REDDISH PURPLISH FUSCIA. THE SHORTEST STRAND IS 16.75" LONG. WE PROVIDE IN-HOUSE/COMBINED SHIPPING AND A SEAMLESS CHE

2 days LeftA SUPERB MARCEL BOUCHER 1950S VINTAGE NECKLACE FUSCIA CRYSTAL

$100

A STUNNING RED CRYSTAL NECKLACE BY DESIGNER STEFAN DINU: THE BREATHTAKING NECKLACE IS A WORK OF ART BY DESIGNER STEFAN DINU. IT IS 22 INCHES LONG, FEATURING RED CRYSTAL. THE PENDANT IS 3.5" LONG. THE NECKLACE IS SIGNED IN TWO PLACES. WE PROVIDE SEAMLESS IN-

2 days LeftA STUNNING RED CRYSTAL NECKLACE BY DESIGNER STEFAN DINU

$250

ORIGINAL BY STEFAN DINU FABULOUS NECKLACE STATEMENT ONYX AND ROSE QUARTZ: THE BREATHTAKING NECKLACE IS A WORK OF ART BY DESIGNER STEFAN DINU. IT IS 22 INCHES LONG, FEATURING ONYX AND ROSE QUARTZ. THE NECKLACE IS SIGNED IN TWO PLACES. WE PROVIDE SEAMLESS IN-HOUSE SHIPPING SE

2 days LeftORIGINAL BY STEFAN DINU FABULOUS NECKLACE STATEMENT ONYX AND ROSE QUARTZ

$700

Edwardian Old Cut Multi Gemstone Diamond Antique Gold Dangle Necklace w/ Provenance: Title: Edwardian Old Cut Multi Gemstone Diamond Antique Gold Dangle Necklace w/ Provenance Description: In March of 2020, this necklace was featured on the cover of Sothebys, as we have shown in our p

Jun 15, 2024Edwardian Old Cut Multi Gemstone Diamond Antique Gold Dangle Necklace w/ Provenance

$3,300

Estate Lot of 5 14k/18k White Gold Diamond Rings: Estate Lot of 5 14k/18k White Gold Diamond Rings. (1) 14K Diamond three stone ring, size 6. 3.24 mm center diamond set in illusion head. SI2 Clarity, I Color .14 Ct (side stones) 1.75 mm, single cut d

Jul 07, 2024Estate Lot of 5 14k/18k White Gold Diamond Rings

$600

A LARGE VINTAGE DOMED GARNET GLASS BROOCH MADE IN AUSTRIA 2" DIAMETER: WE PROVIDE IN-HOUSE/COMBINED SHIPPING AND A SEAMLESS CHECKOUT PROCESS.

2 days LeftA LARGE VINTAGE DOMED GARNET GLASS BROOCH MADE IN AUSTRIA 2" DIAMETER

$30

LOT OF TWO ENAMELED BROOCHES, ONE BY CHRISTOPHER RADCO: BOTH PINS ARE STUNNING. THE SOLDIER PIN BY CHRISTOPHER RADCO IS 2.4 INCHES TALL. THE MONKEY MAMA HAS A BABY ON HER BACK THAT IS MOVABLE. IT IS 2" LONG.WE PROVIDE IN-HOUSE/COMBINED SHIPPING FOR YOUR CO

2 days LeftLOT OF TWO ENAMELED BROOCHES, ONE BY CHRISTOPHER RADCO

$40

Item Details

Description

Circa 1900-1940. Pretty green, probably serpentine, although cold to the touch and highly polished. Professionally strung silk macrame ready to wear. Very attractive as a necklace. No chips, cracks, or inclusions. Weighs 62 grams.

Buyer's Premium

Vintage 2 1/2" Chinese Bi

Name: Vintage 2 1/2\" Chinese Bi
SKU: 45762689
Price: 24 USD
Availability: InStock

Estimate $150 - $300

See Sold Price

Starting Price $24

Sell a Similar Item

Shipping & Pickup Options

Item located in Mount Sterling, KY, us

See Policy for Shipping

Payment

The Artifact Company

TOP RATED

Mount Sterling, KY, United States

179 Reviews

716 Followers