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Certified ct natural - certified,
$64.99
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Igi certified lab - lab, grown
$59.99
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Round lab grown - round,
$59.77
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Loose radiant cut lab - radiant,
$108.99
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Natural white diamond - 1,
$27.50
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Natural royal blue - 1,
$24.48
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Natural white diamond - ct,
$21.50
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Carat scoop 5mm yellow - 1+carat, 1.5mm
$53.39
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Natural white diamond - 1,
$23.50
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1ct 5mm round portuguese cut - 6.5mm,
$38.50
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Natural white diamond - 1, ct
$22.46
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Natural white diamond - 3.50, ct
$48.00
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Certified ct natural - ct,
$128.57
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Certified radiant cut - certified, 10.04
$158.65
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Elegant oval cut certified - oval,
$120.00
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Lab grown moss diamond - ct,
$85.00
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Round d color vvs2 - 5.20,
$99.00
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Lab created diamond - 2.15,
$349.99
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Lab grown cvd diamond - lab-grown,
$32.59
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Lab grown cts emerald cut - lab,
$475.00
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Round cut igi - 1.01,
$199.00
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Natural white diamond - 1,
$35.50
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Genuine full cut round
$149.99
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Igi lab grown round brilliant - round,
$275.00
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Carats silver natural uncut - 1+,
$25.00
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Marquise cut igi - marquise,
$425.00
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Certified natural ct - 2.50,
$1148.00
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Natural white diamond - white,
$55.86
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Round cut natural - 2.00,
$291.00
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Certified natural ct - certified,
$249.99
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Natural white diamond - white,
$62.40
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Carat diamond studs - 1,
$200.00
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Raw diamond 01ct color - raw,
$18.00
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Igi certified ct - igi,
$76.98
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Lab grown 00ct cvd - lab-grown,
$15.59
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Natural white diamond - ct,
$23.50
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Natural white diamond - white,
$33.60
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Natural carat yellow diamond - natural,
$26.00
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Yellow color heart - yellow,
$84.00
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Premium pear cut - premium,
$42.40
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Vvs2 pear lab grown - pear,
$327.00
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Lab grown cvd - 2.50,
$45.99
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Igi certified ct - igi,
$104.99
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Cut natural bare - ex, 1
$948.10
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Natural color lab - color,
$129.12
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Carat vvs2 modified - 2.85,
$525.00
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Lab grown cts oval - 1.00, cut
$199.00
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Certified lab grown cvd - 3, ct
$89.94
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Carat vs1 igi certified - 0.50, g
$135.00
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Natural white diamond - natural,
$48.00
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Natural loose big - 31.60,
$150.00
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Premium 35ct oval cut - 6.35ct, lab
$323.86
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Certified carat natural - 4.15,
$219.99
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Natural green diamond - ct,
$26.95
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10ct rare radiant cut - 8.10ct,
$150.00
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Lab grown cvd - grown, diamond
$160.62
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200 pcs round - pcs,
$27.60
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Flawless natural white - flawless,
$37.20
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Lab grown carat diamond - lab,
$239.52
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4ct radiant cut lab - 4ct,
$63.00
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Cts asscher cut igi - cut,
$899.00
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Lab grown cvd diamond - lab-grown, 3.00
$59.29
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Round cut lab grown - lab,
$55.00
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Oval cut igi certified - ct,
$775.00
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Certified carat natural - certified,
$199.99
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200 piece 100 - 200, raw
$29.00
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Round cut lab grown - 3.00,
$80.00
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Lab grown cvd diamond ct - cvd, 1.00
$48.99
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Natural green diamond - natural,
$26.46
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Natural white diamond 5 - natural,
$25.48
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Natural yellow diamond - ct,
$33.60
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Loose lab grown - lab,
$32.49
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Carat natural diamond - 4.15,
$70.00
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Lab grown cts oval - grown,
$190.00
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Carat vs1 champagne round - 0.50,
$129.95
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50ct natural loose - 1.50ct,
$165.30
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Certified carat natural - certified,
$89.49
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Gia certified pear brilliant - pear,
$550.00
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Certified lab grown - 3, ct
$55.99
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Natural yellow diamond - 3,
$48.51
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Igi certified carat f - 3.00,
$1370.25
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Certified carat natural - certified,
$158.99
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Natural carat yellow diamond - 1,
$26.50
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Blue diamond loose faceted - blue,
$14.99
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White diamond - ct,
$32.57
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Lab grown cvd - diamond, e
$39.99
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Natural mined diamond carat - diamond, 1
$5953.32
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Certified elegant yellow - certified,
$57.89
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Igi certified ct - igi, 1.01
$210.00
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Certified oval cut - ct,
$114.48
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Oval cut igi - 11.60,
$2750.00
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Genuine full cut round
$149.99
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Premium pear cut - premium, 3.00
$77.96
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2mm champagne natural diamond
$14.99
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Color round cut lab - ct,
$50.00
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White lab grown - 11.00,
$127.19
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Looking for more 1 carat diamond?
Search eBay live — fresh results filtered for the best value, updated every hour.
Browse 96 1 carat diamond listings currently in our index. Prices range from $14.99 to $5953.32, with an average of $251.06. 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 1 carat diamond →
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Whether you are looking for a brand-new or second-hand 1 carat diamond, 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 $14.99, while premium listings can reach $5953.32 — giving you a wide budget spread to work with. The average price of $251.06 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.