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Synthetic diamonds

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Synthetic diamonds for sale on largest auction and classifieds sites

Home / Health Supplements / Synthetic diamonds refurbished & used for sale | For Sale UK
Carat synthetic diamonds - 1,

Carat synthetic diamonds - 1,

£6.45
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Lab rough synthetic white - lab,

Lab rough synthetic white - lab,

£21.87
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Lab grown certified - ct,

Lab grown certified - ct,

£369.48
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Lab grown certified - 35.50,

Lab grown certified - 35.50,

£517.79
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Gems gemology in review - &,

Gems gemology in review - &,

£52.70
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Unfoiled zircon stones - unfoiled,

Unfoiled zircon stones - unfoiled,

£4.69
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18ct gold synthetic - 18ct, yellow

18ct gold synthetic - 18ct, yellow

£623.80
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Gram synthetic diamonds - 1,

Gram synthetic diamonds - 1,

£18.32
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Synthetic diamond crystals - diamond,

Synthetic diamond crystals - diamond,

£30.00
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Pretty 18ct yellow gold pink - pretty,

Pretty 18ct yellow gold pink - pretty,

£995.00
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Glencarra cladagh pendant - glencarra,

Glencarra cladagh pendant - glencarra,

£10.80
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Synthetic diamonds gems - diamonds, &

Synthetic diamonds gems - diamonds, &

£47.16
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Synthetic moissanite diamond - synthetic,

Synthetic moissanite diamond - synthetic,

£25.16
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Lab grown certified - 7.80,

Lab grown certified - 7.80,

£159.78
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Certified cvd diamond lab - certified,

Certified cvd diamond lab - certified,

£26.63
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Loose cvd diamond 40ct - loose,

Loose cvd diamond 40ct - loose,

£443.08
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Vintage 10ct gold - 10ct, synthetic

Vintage 10ct gold - 10ct, synthetic

£275.00
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9ct gold ring with - , synthetic

9ct gold ring with - , synthetic

£83.90
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Moissanite vvs1 round cut - round,

Moissanite vvs1 round cut - round,

£25.92
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Diamond carat moissanite - diamond, 1

Diamond carat moissanite - diamond, 1

£26.91
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Gold ring 18ct yellow - gold,

Gold ring 18ct yellow - gold,

£750.00
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Beaverbrooks 9ct white gold - beaverbrooks,

Beaverbrooks 9ct white gold - beaverbrooks,

£210.00
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Diamond carat moissanite - 5,

Diamond carat moissanite - 5,

£49.89
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Single lab created aaa - lab, cz

Single lab created aaa - lab, cz

£5.99
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Gems and gemology review - gems, in

Gems and gemology review - gems, in

£51.78
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Platinum cluster ring - cluster,

Platinum cluster ring - cluster,

£638.83
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Trendy luxury zirconia gold - luxury,

Trendy luxury zirconia gold - luxury,

£4.91
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Starburst gold earrings - starburst,

Starburst gold earrings - starburst,

£67.33
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Aaa dark green - aaa,

Aaa dark green - aaa,

£39.05
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Moissanite round cut loose - round,

Moissanite round cut loose - round,

£59.06
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9ct yellow gold synthetic - yellow,

9ct yellow gold synthetic - yellow,

£195.00
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Synthetic black - 3.20,

Synthetic black - 3.20,

£13.79
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Moissanite vvs1 round - round, cut

Moissanite vvs1 round - round, cut

£29.53
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10k yellow gold clear - gold,

10k yellow gold clear - gold,

£355.06
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Size t synthetic - 9,

Size t synthetic - 9,

£4.99
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Vintage synthetic diamond - vintage,

Vintage synthetic diamond - vintage,

£14.99
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Geneva watch large - large, dial

Geneva watch large - large, dial

£17.63
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9ct gold synthetic ruby - ruby, &

9ct gold synthetic ruby - ruby, &

£168.00
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Igl carat raw lab - raw, cvd

Igl carat raw lab - raw, cvd

£71.01
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Lab grown certified - lab,

Lab grown certified - lab,

£39.94
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Emerald and diamond pendant - emerald,

Emerald and diamond pendant - emerald,

£250.00
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Luxury butterfly brooch 14k - luxury,

Luxury butterfly brooch 14k - luxury,

£16.15
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Vintage michelle albala - "michelle, albala"

Vintage michelle albala - "michelle, albala"

£24.62
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Beaded diamond synthetic - beaded,

Beaded diamond synthetic - beaded,

£4.38
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2026 are - (2397),

2026 are - (2397),

£4.48
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Color oval cvd - fl,

Color oval cvd - fl,

£166.53
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2026 are - -,

2026 are - -,

£3.36
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Synthetic emerald and diamond - synthetic,

Synthetic emerald and diamond - synthetic,

£300.00
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White color round - round, cut

White color round - round, cut

£85.32
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2026 are - (2397), 25-3-2026

2026 are - (2397), 25-3-2026

£3.92
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9ct gold ring solitaire - ring,

9ct gold ring solitaire - ring,

£288.00
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Synthetic sparkling diamond - synthetic,

Synthetic sparkling diamond - synthetic,

£23.57
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9ct yellow gold diamond - gold, and

9ct yellow gold diamond - gold, and

£265.00
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9ct 375 white gold synthetic - gold,

9ct 375 white gold synthetic - gold,

£335.00
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Art deco bulova - art, watch

Art deco bulova - art, watch

£309.69
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Tjc snake ring - ring, size

Tjc snake ring - ring, size

£17.00
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Purple small synthetic - small,

Purple small synthetic - small,

£3.31
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Baguette synthetic - baguette,

Baguette synthetic - baguette,

£561.78
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Carat moissanite pendant - carat,

Carat moissanite pendant - carat,

£54.00
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10k yellow gold - yellow,

10k yellow gold - yellow,

£380.80
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Stone set flower shiny - stone,

Stone set flower shiny - stone,

£18.82
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Aaa dark green moissanite - dark,

Aaa dark green moissanite - dark,

£37.74
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Granville diamond fully - granville,

Granville diamond fully - granville,

£36.99
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Lab grown greenish - grown, ct

Lab grown greenish - grown, ct

£21.75
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Single lab created aaa - lab,

Single lab created aaa - lab,

£5.76
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Synthetic sparkling diamond - sparkling,

Synthetic sparkling diamond - sparkling,

£23.57
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Certified synthetic moissanite - certified,

Certified synthetic moissanite - certified,

£21.43
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Glamorous synthetic diamond - glamorous, &

Glamorous synthetic diamond - glamorous, &

£11.33
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Lab created aaa necklace - aaa, cz

Lab created aaa necklace - aaa, cz

£11.44
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Ladies round cut synthetic - ladies,

Ladies round cut synthetic - ladies,

£12.94
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9ct yellow gold heart - yellow,

9ct yellow gold heart - yellow,

£307.50
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Aaa dark green moissanite - aaa,

Aaa dark green moissanite - aaa,

£41.02
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900 platinum natural - pt,

900 platinum natural - pt,

£343.30
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Windsor vintage choker - windsor,

Windsor vintage choker - windsor,

£17.71
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9ct yellow gold pendant set - pendant,

9ct yellow gold pendant set - pendant,

£159.31
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Silver diamonds ring women men - silver,

Silver diamonds ring women men - silver,

£5.40
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Titanium steel plating inlay - titanium,

Titanium steel plating inlay - titanium,

£33.73
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Baguette cut synthetic - baguette,

Baguette cut synthetic - baguette,

£17.21
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18ct gold synthetic emerald - emerald, &

18ct gold synthetic emerald - emerald, &

£423.58
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18ct yellow gold ring - yellow, set

18ct yellow gold ring - yellow, set

£1384.76
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William griffiths sons 1921 - &,

William griffiths sons 1921 - &,

£585.55
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80cts lab created synthetic - 3.80cts,

80cts lab created synthetic - 3.80cts,

£61.84
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9ct gold pear cut - pear, &

9ct gold pear cut - pear, &

£141.10
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Silver diamond heart - silver, pendant

Silver diamond heart - silver, pendant

£10.79
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Synthetic blue spinel ring - blue,

Synthetic blue spinel ring - blue,

£370.30
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14k gold ring diamonds - gold,

14k gold ring diamonds - gold,

£265.40
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Glencara 925 sterling - 925, silver

Glencara 925 sterling - 925, silver

£42.29
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Sterling silver wrap style

Sterling silver wrap style

£20.30
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9ct gold hallmarked - hallmarked, diamond

9ct gold hallmarked - hallmarked, diamond

£219.00
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Carat moissanite synthetic - carat,

Carat moissanite synthetic - carat,

£42.30
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Color diamond colorless - 5, ct

Color diamond colorless - 5, ct

£35.51
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Igl certified loose green - igl,

Igl certified loose green - igl,

£48.82
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Lab grown certified - lab,

Lab grown certified - lab,

£24.41
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Pink and clear - pink,

Pink and clear - pink,

£13.47
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Igl certified loose - igl, 10

Igl certified loose - igl, 10

£128.71
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Lab grown certified ct - lab,

Lab grown certified ct - lab,

£133.15
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Looking for more synthetic diamonds?

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📊96 listings · from £3.31 · avg £153.4
⚠️ These listings were last updated more than 17 days ago. Search for fresh listings

Browse 96 synthetic diamonds listings currently in our index. Prices range from £3.31 to £1384.76, with an average of £153.4. 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 synthetic diamonds →

Try this: tanita scale | tape worms | tds meter | tektite | tens unit | uncut gemstones | variscite | weigh scales | whey isolate | vintage ottoman

Shop by budget

< £25 £25 – £50 £50 – £100 £100 – £200 £200 – £500 > £500

Everything you need to know about synthetic diamonds

Whether you are looking for a brand-new or second-hand synthetic diamonds, 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 £3.31, while premium listings can reach £1384.76 — giving you a wide budget spread to work with. The average price of £153.4 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.

🔍 synthetic diamonds Search live on eBay