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Moissanite cross necklace 1 - cross, necklace,
$380.00
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1ct igi lab grown diamond - lab,
$854.00
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14k white gold round - 14k,
$849.00
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1ct natural diamond - 1ct, pendant
$522.00
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Vvs igi round lab - ct,
$629.99
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Igi vvs round lab - ct,
$629.99
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1ct solitaire lab - lab, diamond
$839.30
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1ct solitaire diamond - 1ct,
$459.99
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950 platinum igi - 1,
$979.30
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Round vvs lab created - lab,
$599.80
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4ct diamond round - 1/4ct, round-cut
$184.00
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Lab created diamond round - created,
$80.99
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Igi ct round lab - ct,
$622.96
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Stunning platinum 900 natural - platinum,
$799.00
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1ct round cut - 1ct,
$36.29
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1ct round lab created - 1ct,
$61.99
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Zales lab grown - zales, tw
$575.00
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Zales 1ct diamond - zales,
$800.00
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Ct t w natural - ct, t.w.
$1264.99
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14k yellow gold - 14k,
$2595.00
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14k solid gold - solid, solitaire
$1199.00
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Lab created diamond round - 1,
$80.99
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Diamond pendant necklace 00 - pendant, 1.00
$785.00
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New aprx 1ct - aprx.,
$499.99
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Round cut 1ct - round, diamond
$32.00
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Vvs pear lab created - 1, ct
$599.80
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Diamond fashion special - fashion,
$1170.00
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Diamond cross pendant - 1,
$781.99
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Lab created diamond round - lab,
$77.28
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1ct diamond necklace with - 1ct,
$140.00
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1ct round cut natural - gh/si,
$857.42
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Brilliant cut moissanite - 1,
$102.81
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1ct round cut - round, cz
$12.99
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Elegant 14k gold - 14k, necklace
$450.00
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Round diamond 4 prong - -, 4-prong
$470.35
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1ct floating diamond - floating,
$804.99
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14kt gold lab grown - 1,
$796.94
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Diamond seven stone - diamond,
$193.50
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Round vvs lab created - 1,
$599.80
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1ct round cut - round,
$68.54
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Princess vvs lab - ct,
$599.80
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Lapaix natural briolette - lapaix,
$395.00
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Lab grown brilliant cut - ct,
$115.00
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1ct princess sapphire - 1ct, &
$29.20
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Round lab created - ct, grown
$799.80
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14k yellow gold - yellow,
$40.00
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Round cut diamond 3 stone - 1,
$899.00
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Round cut blue - round, lab
$882.96
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1ct round cut - cut, diamond
$48.00
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Diamond necklace preowned - 1, ct
$899.00
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2ct diamond - 2ct,
$499.10
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Igi vvs turned asscher - f/vvs, ct
$778.96
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1ct circle diamond pendant - 1ct, tw
$248.40
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Round blue lab - round, created
$1018.80
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Pear lab created grown - 1, ct
$599.99
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925 sterling silver lab - 925,
$79.26
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Oval lab created - 1,
$674.96
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Jane seymour open - open, 14k
$2125.00
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Vvs round 14k white - e/vvs,
$649.80
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Igi emerald cut lab - f/vs, 1
$622.96
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1ct round diamond - round,
$40.00
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1ct round simulated diamond - 1ct,
$63.95
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Diamond necklace ct - diamond, necklace,
$634.23
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14k yellow gold - 1ct, cut
$1796.00
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1ct diamond stone pendant - 3-stone,
$574.99
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Victoria townsend 18k gold - victoria,
$92.00
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1ct round cut diamond - 1ct,
$37.04
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Igi cert vvs - igi, lab
$700.96
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Round blue lab created - blue,
$882.96
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Genuine diamond tw - ct, circle
$90.00
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1ct round cut diamond - cut,
$41.20
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1ct cushion cut - cut, lab
$109.99
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1ct round simulated diamond - 1ct,
$42.89
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1ct round lab crerated - 1ct,
$65.97
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Multi diamond tennis necklace - tennis,
$1300.00
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14k marquise diamond - 18",
$1299.00
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1ct natural round diamond - 1ct,
$999.00
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1ct diamond cross pendant - 1ct,
$12.98
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Ct t w blue - 2,
$299.99
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Igi vvs round lab - e/vvs, 1
$674.96
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Minimalist 1ct round cut - 1ct,
$939.74
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Lab grown diamond seven - ct,
$322.50
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Igi oval cut lab - f/vs,
$622.96
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1ct bright diamond - diamond, solitaire
$1095.00
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Igi certified lab grown - certified,
$868.87
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599 new victorian 18k - new,
$395.00
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Vvs heart lab created - ct, e/vvs
$599.80
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Vvs round lab - e/vvs,
$599.80
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1ct round cut diamond teardrop - diamond,
$28.30
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Vvs heart lab created - e/vvs,
$599.80
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Diamond pendant necklace - diamond,
$785.00
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1ct round cut diamond - round,
$39.20
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Silverbloom 925 1ct - 925,
$49.99
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1ct diamond pendant platinum
$599.00
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14k white gold - 14k,
$1079.00
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1ct lab created diamond - 1ct,
$76.23
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Looking for more 1ct diamond necklace?
Search eBay live — fresh results filtered for the best value, updated every hour.
Browse 96 1ct diamond necklace listings currently in our index. Prices range from $12.98 to $2595, with an average of $561.98. Whether you are hunting for a bargain or looking for a top-spec model, the selection below covers all price points — new, used and refurbished. More about 1ct diamond necklace →
Try this: tanzanite jewelry | necklaces 5 45 | virgin mary baby jesus | 26 14k gold cuban chain | chokers cables | silver disc 3 strand necklace | gorgeous charm | sterling silver necklaces | chain sterling silver nwt | pile curb
Whether you are looking for a brand-new or second-hand 1ct diamond necklace, eBay offers one of the largest selections available online. With 96 active listings at the time of this page's last update, you have plenty of choice across different conditions, sellers and price points. The cheapest option currently starts at $12.98, while premium listings can reach $2595 — giving you a wide budget spread to work with. The average price of $561.98 can serve as a useful benchmark: listings below this tend to be used or auction-style, while those above often include extra accessories, warranties, or are sold by professional sellers with high feedback scores. Always check the seller's feedback rating and return policy before committing to a purchase. If you need the item quickly, filter by "Buy It Now" to avoid the uncertainty of auctions. For used items, look closely at the condition description and photos — terms like "good", "very good" and "like new" can mean very different things depending on the seller.