Lot Of Three 10k Gold Rings And Pendant - Mar 17, 2019 | Clark's Auction Company In Ca
Upcoming AuctionsAuctions Near MeHow Auctions Work
|
HelpNewsConsignPrice Results
LiveAuctioneers Logo
Art
Jewelry
Asian Antiques
Furniture
Collectibles
Coins
Home & Décor
Fashion
Explore Categories

Art
Artists
Popular Searches
Browse by Origin
California Jewels
Bonhams
Sponsored.Your ad here?

Jewelry
Featured
Popular Searches
Certified Exquisite Jewelry Big Sale | Day8
Elbert Gallery
Sponsored.Your ad here?

Asian Antiques
Browse By Origin
Featured
Day-1 IMPORTANT CHINESE FINEART & ANTIQUE
EDEN Fine Antiques Galleries
Sponsored.Your ad here?

Furniture
Tables
Seating
Cabinets & Storage
Browse By Styles
Featured

Collectibles
Eclectic, Antiques, Lamps, Presidential
Lakeshore Event Center
Sponsored.Your ad here?

Coins
Browse By Origin
Featured Coins
May Premier Coins & Currency Auction
Alaska Premier Auctions & Appraisals
Sponsored.Your ad here?

Home & Décor
Featured
Springtime In Charleston
David Skinner Antiques
Sponsored.Your ad here?

Clothing
Accessories
Featured Designers

lots of lots
View Auction
Jewelry
Necklaces & Pendants
Previous
Lot 0155
Next

Lot of Three 10k Gold Rings and Pendant

Similar Sale History

View More Items in Necklaces & Pendants
Sold
Antique group 10K Necklace Ring Pendant Pin: Three-piece lot - there is 10K yellow gold necklace with carved coral flower drops, all original, with no repairs. There is a 10K black onyx ring with five pearls also in good condition with no repair
2023Antique group 10K Necklace Ring Pendant PinSee Sold Price
Sold
Three 10K Gold Items: Group of jewelry, including a 10k ladies ring with a synthetic yellow stone, a 10k ring (missing a stone), and a 10k pendant with a necklace. (Total weight: 20 dwt. inclusive). Necklace damaged.
2022Three 10K Gold ItemsSee Sold Price
Sold
Three Pieces of Gold Jewelry.: Lot consists of a 14K yellow gold crescent moon pin with a small diamond, a 14K yellow gold & black onyx pendant and lastly a 10K gold claddagh ring set with stones(?). All in good condition. Total we
2018Three Pieces of Gold Jewelry.See Sold Price
Sold
A group of gold and gemstone jewelry: Including 18K, 14K, and 10K yellow gold; one necklace, eight pairs of earrings, two bracelets, three pins, twelve pendants, and three rings, gemstones include star ruby, aventurine quartz, amethyst, r
2017A group of gold and gemstone jewelrySee Sold Price
Sold
ASSORTED 10K & 14K GOLD JEWELRY: VINTAGE, ETC.: Lot of assorted 10k and 14k gold jewelry. Includes a rings, three chains (larger two 14k), a 14k toothpick, a 14k and jade owl pin, a vintage heart pendant, and a Degree of Pocahontas pin. Condition:
2017ASSORTED 10K & 14K GOLD JEWELRY: VINTAGE, ETC.See Sold Price
Sold
10K Yellow Gold Victorian Rings & Pendant Lot. 4 Rings size 3.75 - 7.5 and 2 Pendants 1" - 1.5": 10K Yellow Gold Victorian Rings & Pendant Lot. 4 Rings size 3.75 - 7.5 and 2 Pendants 1" - 1.5" total wt. 17.7 grams
202310K Yellow Gold Victorian Rings & Pendant Lot. 4 Rings size 3.75 - 7.5 and 2 Pendants 1" - 1.5"See Sold Price
Sold
10K Yellow Gold Rings, Necklaces & Pendants: Here we have to gold chain necklaces, a heard pendant and (4) rings. Each piece is marked 10K and in good condition. Total weight is 11 g. Contact our recommended 3rd party "for profit" shipper Pak Ma
201710K Yellow Gold Rings, Necklaces & PendantsSee Sold Price
Sold
LOT OF THREE LADIES 10K WHITE GOLD PENDANTS: LOT OF THREE LADIES 10K WHITE GOLD PENDANTS Lot of three ladies 10K white gold pendants. Includes: pendant with 6 x 6mm garnet, journey pendant with blue sapphire ranging from 2mm to 4mm, and a pendan
2015LOT OF THREE LADIES 10K WHITE GOLD PENDANTSSee Sold Price
Sold
10k Gold Pendant & Ring Lot with Blue Gems: 10k Gold Pendant & Ring Lot with Blue Gems, Pendant Stamped 10k on Bail, Ring Tested 10k on Acid Test, Total Combined Weight 3.5g, Ring Size 4, 
201810k Gold Pendant & Ring Lot with Blue GemsSee Sold Price
Sold
Cartier Love 18k gold three ring pendant-necklace: Cartier Love 18k gold three ring pendant-necklace featuring three Cartier Love design rings in rose, white and yellow gold, strung on a rose and white gold two-strand chain, measures 15", 8.7 grams, s
2015Cartier Love 18k gold three ring pendant-necklaceSee Sold Price
Sold
10K Rings and Pendants with Diamonds: 10K Yellow Gold Rings and Pendants with Diamonds. Ring sizes range from 6.5 to 7.75. Heart pendant 7/8" x 5/8", Ruby pendant 5/8" x 1/2". Necklace 18" long. 20.7 grams
202310K Rings and Pendants with DiamondsSee Sold Price
Sold
10k Gold Jewelry Group: 2 Rings, 2 Pendants, Necklace: 10k Gold Jewelry Group: 2 Rings, 2 Pendants, Necklace: Ring with 14 diamonds size 6.5, ring with tanzanite cluster size 4.75, heart pendant ruby center stone and diamond chips, 18" chain with flower p
202010k Gold Jewelry Group: 2 Rings, 2 Pendants, NecklaceSee Sold Price
Sold
10K GOLD DIAMOND ONYX RING & 14K HEART PENDANT: 1120910K GOLD DIAMOND ONYX RING & 14K HEART PENDANT 10K yellow gold black onyx ring and 14k gold heart pendant. Ruby Weight: 6.7 grams Size: 9Condition: Like New
202110K GOLD DIAMOND ONYX RING & 14K HEART PENDANTSee Sold Price
Sold
2 Pcs. 14K gold, diamond and sapphire jewelry: 2 Pcs. 14K gold, diamond and sapphire jewelry including a ring and cross pendant with 10K gold chain. Ring stamped, "14K BH"; pendant stamped, "14K"; chain stamped, "10K". 9.5 grams. Ring size 6, pend
20182 Pcs. 14K gold, diamond and sapphire jewelrySee Sold Price
Sold
Group of Assorted Costume and Gold Jewelry: Group of Assorted Costume and Gold Jewelry. Including, pins, rings, pendants, watch brooches, 10k gold necklace approx. 8 dwt, gold ring and a sterling silver pendant. Used condition
2023Group of Assorted Costume and Gold JewelrySee Sold Price
Sold
Two Pieces of Baby Jewelry: Lot consists of a 10K gold babies signet ring and a golf filled pendant hanging from a 10K gold chain, both in good condition.
2021Two Pieces of Baby JewelrySee Sold Price

Related Necklaces & Pendants

Three 10K Gold Pendant Necklaces: Each one a delicate chain with pendant. One 16" white gold chain with a marquise cut pink glass stone, one 18" chain with a cross pendant, and one 18" chain with an amethyst cluster pendant. Total wei
May 23, 2024Three 10K Gold Pendant Necklaces
$70
2.43 Ctw SI2/I1 Diamond 10K Yellow Gold Pendant Necklace: 2.43 Ctw SI2/I1 Diamond 10K Yellow Gold Pendant Necklace -- Center Diamond Weight : 1.70 Ctw ( 6pec Round Cut) Center Diamond Color :-J-K Setting : Prong Side Weight Of Ctw 0.73 Ctw Color : J-K Clarit
4 days Left2.43 Ctw SI2/I1 Diamond 10K Yellow Gold Pendant Necklace
$500
Vintage Half Diamond Heart Pendant Necklace 10K and 14K Yellow Gold, 1.99 Grams: Vintage Half Diamond Heart Pendant Necklace 10K and 14K Yellow Gold, 1.99 Grams This is a beautiful necklace. Please let us know if you have any questions :) Circa: 1980's Diamonds: 5 round single cut
21 hrs LeftVintage Half Diamond Heart Pendant Necklace 10K and 14K Yellow Gold, 1.99 Grams
$280
An articulated diamond pendant necklace,: An articulated diamond pendant necklace, set with round brilliant and baguette cut diamonds, in illusion and claw setting, the pendant is articulated into three sections that move slightly, total esti
May 21, 2024An articulated diamond pendant necklace,
£560
14K Gold YG Diamond Pendant Necklace. Pendant has three loops; each with a diamond. Approximate diam: 14K Gold YG Diamond Pendant Necklace. Pendant has three loops; each with a diamond. Approximate diamond total weight; 0.4 Carat. Pendant is 0.75" Wide by 0.5" High. Jump Ring marked Italy 14K. Dimensi
14 hrs Left14K Gold YG Diamond Pendant Necklace. Pendant has three loops; each with a diamond. Approximate diam
$120
10K gold pendant: 10K yellow gold pendant featuring a Diamond gemstone. 1.05 grams of weight. 18 inches in length.
May 23, 202410K gold pendant
$40
10K gold pendant: 10K yellow and white gold pendant featuring red garnet. 0.67 grams of weight.
May 23, 202410K gold pendant
$25
10K gold pendant: 10k yellow gold heart pendant with diamond gemstones. 1.41 grams total weight. Diamonds - 0.52 carats total weight.
May 23, 202410K gold pendant
$50
10K gold pendant: 10k white and yellow gold dragonfly pendant with diamonds. 1.83 grams total weight.
May 23, 202410K gold pendant
$60
10K gold pendant: 10K yellow gold swirl pendant featuring diamond gemstones. 1.38 grams of total weight.
May 23, 202410K gold pendant
$80
10K gold pendant: 14K white gold pendant featuring diamond gemstones. 0.87 grams of total weight.
May 23, 202410K gold pendant
$30
10K gold pendant: 10K yellow gold pendant featuring Diamond gemstones. 1.01 grams of total weight.
May 23, 202410K gold pendant
$35
10K gold pendant: 10K yellow gold pendant featuring citrine and CZ gemstones. 1.32 grams of total weight.
May 23, 202410K gold pendant
$45
10k gold pendant: 10k white gold pendant with topaz and diamond gemstones. 1.75 grams total weight.
May 23, 202410k gold pendant
$60
10K gold pendant: 10K yellow gold pendant with CZ gemstones. 2.95 grams of total weight.
May 23, 202410K gold pendant
$100
10k gold pendant: 10k yellow gold pendant featuring ruby and diamond gemstones. 2.11 grams total weight.
May 23, 202410k gold pendant
$150

More Items in Necklaces & Pendants

View More
Art Deco Vaseline Uranium Glass Vintage Necklace: Really nice piece that glows beautifully under UV light. All the stones in this necklace are from uranium glass. Made in Czechoslovakia. Dimensions: Measures 17 1/2" including extender and clasp. Adju
May 25, 2024Art Deco Vaseline Uranium Glass Vintage Necklace
$180
YELLOW GOLD CURB LINK CONVERTIBLE SET: YELLOW GOLD CURB LINK CONVERTIBLE SET Consisting of a curb link necklace and matching bracelet. 14 karat yellow gold. Necklace: 15 1/2 inches long. Bracelet: 7 1/2 inches long, 3/4 inch wide. Stamp: 1
15 hrs LeftYELLOW GOLD CURB LINK CONVERTIBLE SET
$1,900
Elizabeth Locke 17" Hammered Link 19K Necklace: Elizabeth Locke 17" "Orvieto" Hammered Link 19K Yellow Gold Necklace. This necklace has a gold toggle and ring enclosure. Chain is marked, "19K." Measures 17" long X 0.24" wide. Total weight: 1.41 Tro
5 days LeftElizabeth Locke 17" Hammered Link 19K Necklace
$2,900
A VINTAGE KENNETH LANE MULTI STRAND TWIST NECKLACE TURQUOISE: THE STUNNING KENNETH LANE SIGNED, TWIST STYLE NECKLACE IS 17" LONG, WITH TURQUOISE AND GOLD TONE BEADS. WE PROVIDE IN-HOUSE/COMBINED SHIPPING FOR YOUR CONVENIENCE.
6 days LeftA VINTAGE KENNETH LANE MULTI STRAND TWIST NECKLACE TURQUOISE
$40
A VINTAGE SNAKE SERPENT NECKLACE RETICULATED: THE WELL MADE SILVER TONE NECKLACE IS RETICULATED AND MEASURES 16" TO 17" IN WEARABLE LENGTH, ADJUSTABLE WITH A MAGNETIC CLOSURE. WE PROVIDE IN-HOUSE/COMBINED SHIPPING FOR YOUR CONVENIENCE.
6 days LeftA VINTAGE SNAKE SERPENT NECKLACE RETICULATED
$40
Cartier 18K Gold Figaro Link Necklace: Cartier 18K Gold Figaro Link Necklace, featuring solid links graduating to a centered largest link, joined with box and tongue clasp, marked: "Cartier 750 3028" with Italian hallmarks. Measuring appro
6 days LeftCartier 18K Gold Figaro Link Necklace
$4,500
Retro 18k Gold Oval Link Necklace: DESCRIPTION: A 18k gold oval link necklace completed with a lobster clasp, stamped with indistinct hallmarks. Total Weight: 22.2 Grams (14.3 dwt) CIRCA: Late 20th Cent. ORIGIN: Continental DIMENSIONS:
16 hrs LeftRetro 18k Gold Oval Link Necklace
$1,000
Gumps 18K Cultured Pearl Necklace Gem Set Clasp: Gumps Multi Strand Cultured Pearl Necklace with an 18K Shell Carved Green Beryl Clasp. Size 16.25" L 1"D clasp; 74.26 dwts.; 7.5mm pearls.
May 21, 2024Gumps 18K Cultured Pearl Necklace Gem Set Clasp
$225
14K Beaded Coral Necklace: 14K 3-Strand Beaded Coral Necklace; 16" length.
May 21, 202414K Beaded Coral Necklace
$325
A FABULOUS VINTAGE MID CENTURY STATEMENT NECKLACE: THIS FABULOUS NECKLACE IS 17"LONG WITH A 6.5" LONG PENDANT. STANDS ARE FOR DISPLAY ONLY, NOT INCLUDED UNLESS OTHERWISE STATED. PROPERTY OF A FLORIDA COLLECTOR. WE COMBINE/PROVIDE IN-HOUSE SHIPPING.
6 days LeftA FABULOUS VINTAGE MID CENTURY STATEMENT NECKLACE
$30
A SUPERB SOUTHWESTERN VINTAGE NECKLACE ANIMAL FETISH ALASKA: THE SUPERB VINTAGE SOUTHWESTERN NECKLACE IS 27" LONG. VARIOUS CARVED NATURAL STONES. WE PROVIDE IN-HOUSE/ COMBINED SHIPPING FOR AN EASY CHECKOUT.
6 days LeftA SUPERB SOUTHWESTERN VINTAGE NECKLACE ANIMAL FETISH ALASKA
$55
A BEAUTIFUL SOUTHWESTERN VINTAGE NECKLACE ANIMAL FETISH: THE BEAUTIFUL VINTAGE SOUTHWESTERN NECKLACE IS 23" LONG. VARIOUS CARVED NATURAL STONES. WE PROVIDE IN-HOUSE/ COMBINED SHIPPING FOR AN EASY CHECKOUT.
6 days LeftA BEAUTIFUL SOUTHWESTERN VINTAGE NECKLACE ANIMAL FETISH
$55
A WONDERFUL MASSIVE MASHA ARCHER BIB COLLAR NECKLACE 20": THIS LOT FEATURES A FABULOUS 18 STRAND TWIST STYLE COLLAR OF GREY AND BLACK VINTAGE GLASS INTERLOCKING RONDELLES, ALSO CALLED "SNAKE BEADS" FROM GERMANY CIRCA THE 1920S WITH ONYX BEADS. THIS IS A VERY
6 days LeftA WONDERFUL MASSIVE MASHA ARCHER BIB COLLAR NECKLACE 20"
$525
CHICO'S MULTI STRAND FAUX PEARL NECKLACE PLUS EARRINGS: THE NECKLACE HAS AN ADJUSTABLE LENGTH UP TO 30". THERE ARE 12 STRANDS OF HIGH QUALITY GLASS FAUX PEARLS. THE PEARLS ARE WHITE, CHAMPAGNE AND PINK. WE INCLUDED A BEAUTIFUL PAIR OF TALBOTS EARRINGS. WE
6 days LeftCHICO'S MULTI STRAND FAUX PEARL NECKLACE PLUS EARRINGS
$15
A VINTAGE JOAN RIVERS NECKLACE RHINESTONES: THE BEAUTIFUL VINTAGE RHINESTONE NECKLACE IS SIGNED JOAN RIVERS. THE NECKLACE IS 20" LONG WITH EXTENSION. STANDS ARE FOR DISPLAY ONLY, NOT INCLUDED UNLESS OTHERWISE STATED. PROPERTY OF AFLORIDA COLLEC
6 days LeftA VINTAGE JOAN RIVERS NECKLACE RHINESTONES
$20
VINTAGE ANN KLEIN NECKLACE COSTUME JEWELRY: THE BEAUTIFUL NECKLACE BY ANN KLEIN, IN RICH GOLD TONE IS 17" LONG. STANDS ARE FOR DISPLAY ONLY, NOT INCLUDED UNLESS OTHERWISE STATED. PROPERTY OF A FLORIDA COLLECTOR. WE COMBINE/PROVIDE IN-HOUSE SHIP
6 days LeftVINTAGE ANN KLEIN NECKLACE COSTUME JEWELRY
$20

Recommended Jewelry

View More
18K Yellow Gold Aquamarine & Diamond Ring: 18K Yellow Gold Aquamarine & Diamond Ring Stone Type: Diamonds Other Gemstones Metal Type: 18K Metal Color: Yellow Appraisal Price: $11800 Comments: 18K Yellow Gold Aquamarine & Diamond Ring Weighing
16 hrs Left18K Yellow Gold Aquamarine & Diamond Ring
$610
Lot of Watches, Wrist and Pocket: This lot of watches would be used for parts. This lot of watches included a New Era Pocket Watch in an Alaska Metal case. The back is loose and the is a hairline in the porcelain, not running. There i
23 hrs LeftLot of Watches, Wrist and Pocket
$275
14k Art Deco Diamond Engagement Ring: An early 20th century Art Deco Period 14k White Gold and Diamond engagement ring. Domed filigree setting with milgrain detail and three round cut diamond approx. 0.31 cttw. Marked "14k". 2.3 grams tot
5 days Left14k Art Deco Diamond Engagement Ring
$300
PATEK-PHILIPPE GENEVE 18KT GOLD OPEN FACE POCKET WATCH: PATEK-PHILIPPE GENEVE 18KT YELLOW GOLD OPEN FACE POCKET WATCH, SERIAL #196374, 19/20TH C., DIAM. 43.18 MM, W. 51.6 DWT
5 days LeftPATEK-PHILIPPE GENEVE 18KT GOLD OPEN FACE POCKET WATCH
$2,400
Lock of Robert E. Lee's Hair & Archive: LARGE LOCK OF ROBERT E. LEE'S HAIR FROM HIS LEXINGTON, VIRGINIA DOCTOR, HOWARD T. BARTON. Large lock of General Robert E. Lee's hair, taken at death. [Lexington, Virginia], [1870]. Approx. length 6 in
2 days LeftLock of Robert E. Lee's Hair & Archive
$1,100
Rare Vintage Piaget 18k Gold and Diamond Bangle Watch: DESCRIPTION: A rare and unique Piaget ladies 18k yellow gold watch features a mechanical movement, pave diamond dial, attached to a textured intertwining bangle bracelet accented by inset diamonds. Th
16 hrs LeftRare Vintage Piaget 18k Gold and Diamond Bangle Watch
$8,500
VAN CLEEF & ARPELS, RUBY AND DIAMOND 'MYSTERY SET' FLOWER CLIP EARRINGS: VAN CLEEF & ARPELS, RUBY AND DIAMOND 'MYSTERY SET' FLOWER CLIP EARRINGS Centering two round brilliant cut diamonds weighing approximately 0.80 carat total, with mystery set ruby petals. Mounted in 18
15 hrs LeftVAN CLEEF & ARPELS, RUBY AND DIAMOND 'MYSTERY SET' FLOWER CLIP EARRINGS
$40,000
18K Sapphire & Diamond Ring: 18K Sapphire & Diamond Ring. Natural stone square faceted sapphire 6.5 cts. est.; diamond total est. 1.6cts.; ring size 5.5; weight 5.92 dwts.
May 21, 202418K Sapphire & Diamond Ring
$3,200
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
Cartier PANTHERE CLASSIQUE 18K Gold Estate Watch: Artist/Designer; Manufacturer: Cartier (France)Marking(s); notes: Cartier imprints, 18K, 750, 887968C, 005593, marking(s)Materials: 18K gold, sapphireDimensions (H, W, D)
5 days LeftCartier PANTHERE CLASSIQUE 18K Gold Estate Watch
$3,500
DIAMOND RING AND JACKETS: DIAMOND RING AND JACKETS Consisting of a platinum ring containing one round brilliant cut diamond weighing 6.44 carats and two tapered baguette cut diamonds, together with a white gold ring jacket con
15 hrs LeftDIAMOND RING AND JACKETS
$10,000
14k Yellow Gold Chanel Set Diamond Bangle Bracelet: 14k yellow gold bangle with chanel set diamonds, approx 1/2+ carat total weight (25 diamonds). Measure Inside circumference 6.5". Total weight 15.2 grams.
6 days Left14k Yellow Gold Chanel Set Diamond Bangle Bracelet
$525
Early Diamond Engagement Ring: 18K heavy band with center buttercup setting holding an Old Mine cut diamond, inner band inscribed "W.H.E. and M.L.B.", "1844", Old Mine cut diamond is approx. 0.60+ ct, chip on girdle, ring size 6-3/
5 days LeftEarly Diamond Engagement Ring
$425
14K Diamond & Emerald Ring: 14K White Gold & Emerald 7 cts. est Ring. Size 7; weight 6.51 dwts.
May 21, 202414K Diamond & Emerald Ring
$575
NW COAST "RAVEN" ENGRAVED/TOOLED STERLING CUFF BRACELET: RARE NORTHWEST COAST "RAVEN" ENGRAVED/TOOLED STERLING CUFF BRACELET SIGNED DANIEL, C. 1960, SIZE 5 3/4", 1.5 OZ.
5 days LeftNW COAST "RAVEN" ENGRAVED/TOOLED STERLING CUFF BRACELET
$140
14k White Gold Heart Shaped Diamond Solitaire Ring size 8: Natural diamond, SI-2 HI color. 1.26 carats. Total weight 1.9 grams.
6 days Left14k White Gold Heart Shaped Diamond Solitaire Ring size 8
$725
item-69752595=1
item-69752595=2
item-69752595=3
item-69752595=4
item-69752595=5
item-69752595=6
item-69752595=7
item-69752595=8
Lot of Three 10k Gold Rings and Pendant
Lot of Three 10k Gold Rings and Pendant
Item Details
Description
Three piece 10k gold lot. Two 10k yellow gold rings and 10k pendant. Multi precious gemstone ring marked 10k plumb, 3.5g size 5 and 10 1969 Lyons high ring, 3.7g size 5.5. Vintage OC Tanner Jewelry Co. 10k gold and diamond pendant, may have been fraternal jewelry circa 1940, hallmarked EMB CTO 1.8g. Approximately .5 x .65in. ALL CREDIT CARDS WILL BE MANUALLY VERIFIED PRIOR TO SHIPMENT.
Buyer's Premium
  • 25%

Lot of Three 10k Gold Rings and Pendant

Estimate $125 - $175
See Sold Price
Starting Price $100
Sell a Similar Item
4 bidders are watching this item.
Shipping & Pickup Options
Item located in Scotts Valley, CA, us
See Policy for Shipping
Payment
Accepts seamless payments through LiveAuctioneers
Clark's Auction Company

Clark's Auction Company

badge TOP RATED
Scotts Valley, CA, United States
377 Reviews
4,882 Followers

Related Searches

Price Results
Auctions in California
TOP