For Sale USA

Tridacna

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Natural giant clam - clam, shell

Natural giant clam - clam, shell

$450.00
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Tridacna gigas piece - gigas, 2

Tridacna gigas piece - gigas, 2

$29.88
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Derasa clam seashell white - seashell,

Derasa clam seashell white - seashell,

$35.99
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Art collectable beautifull - art,

Art collectable beautifull - art,

$45.00
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Tridacna squamosa fluted - tridacna,

Tridacna squamosa fluted - tridacna,

$38.00
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Vtg giant clam tridacna - vtg,

Vtg giant clam tridacna - vtg,

$67.00
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Giant half clam - shell, tridacna

Giant half clam - shell, tridacna

$78.95
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Lbs rare genuine - 85,

Lbs rare genuine - 85,

$750.00
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Tridacna squamosa super fluted - tridacna,

Tridacna squamosa super fluted - tridacna,

$42.00
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Ruffle clam seashell - seashell, half

Ruffle clam seashell - seashell, half

$23.95
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Large giant clam shell - large,

Large giant clam shell - large,

$150.00
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Natural tridacna ruffled - natural,

Natural tridacna ruffled - natural,

$33.62
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Tridacna clam shell natural - clam,

Tridacna clam shell natural - clam,

$29.00
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Tridacna squamosa fluted clam - tridacna,

Tridacna squamosa fluted clam - tridacna,

$79.99
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Huge tridacna gigas - tridacna,

Huge tridacna gigas - tridacna,

$659.00
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Derasa clam seashell - derasa, white

Derasa clam seashell - derasa, white

$24.99
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Tridacna giant clam half shell - tridacna,

Tridacna giant clam half shell - tridacna,

$15.00
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Extraordinary tridacna - extraordinary,

Extraordinary tridacna - extraordinary,

$499.99
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Tridacna squamosa super flute - squamosa,

Tridacna squamosa super flute - squamosa,

$42.00
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Collector fave tridacna - collector, fave...tridacna

Collector fave tridacna - collector, fave...tridacna

$38.99
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Giant clam shell - clam,

Giant clam shell - clam,

$200.00
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Natural giant clam shell - giant,

Natural giant clam shell - giant,

$69.99
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Large whole fluted - large,

Large whole fluted - large,

$115.00
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Large pair matched fluted - matched,

Large pair matched fluted - matched,

$45.00
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Tridacna squamosa fluted - squamosa,

Tridacna squamosa fluted - squamosa,

$34.98
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Tridacna squamosa super - tridacna,

Tridacna squamosa super - tridacna,

$42.00
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Giant tridacna squamosa - giant,

Giant tridacna squamosa - giant,

$90.05
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Giant clam half shell tridacna - giant,

Giant clam half shell tridacna - giant,

$64.00
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Fluted ruffled scaly - fluted,

Fluted ruffled scaly - fluted,

$49.99
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Huge tridacna gigas - huge,

Huge tridacna gigas - huge,

$659.00
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Natural giant clam shell - 10",

Natural giant clam shell - 10",

$222.22
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Natural giant clam shell - natural,

Natural giant clam shell - natural,

$34.99
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Small derasa clam seashell - derasa,

Small derasa clam seashell - derasa,

$24.99
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Tridacna squamosa super - tridacna,

Tridacna squamosa super - tridacna,

$42.00
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Tridacna gigas inches - gigas, 12

Tridacna gigas inches - gigas, 12

$125.00
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Natural clam seashell half - natural,

Natural clam seashell half - natural,

$24.94
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Natural giant clam shell - natural,

Natural giant clam shell - natural,

$350.00
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Almost matching tridacna gigas - almost,

Almost matching tridacna gigas - almost,

$69.00
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Natural giant clam - 8½",

Natural giant clam - 8½",

$222.22
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Large 14lb pounds - 14lb, genuine

Large 14lb pounds - 14lb, genuine

$229.95
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Tridacna gigas clam - gigas,

Tridacna gigas clam - gigas,

$39.99
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White fluted ruffled - white, clam

White fluted ruffled - white, clam

$25.00
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Vintage clam shell natural - vintage,

Vintage clam shell natural - vintage,

$100.00
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Tridacna gigas giant clam - giant,

Tridacna gigas giant clam - giant,

$34.99
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Giant clam shell tridacna - clam,

Giant clam shell tridacna - clam,

$295.00
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Huge specimen natural giant - huge,

Huge specimen natural giant - huge,

$145.00
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Large fluted squamosa tridacna - large,

Large fluted squamosa tridacna - large,

$40.00
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Large genuine ocean giant - genuine, clam

Large genuine ocean giant - genuine, clam

$79.99
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Natural giant clam shell - clam,

Natural giant clam shell - clam,

$63.74
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Giant clam sea - giant,

Giant clam sea - giant,

$60.00
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Matched one tridacna squamosa - one,

Matched one tridacna squamosa - one,

$15.18
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Large natural giant clam - large,

Large natural giant clam - large,

$79.90
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Tridacna giga clam - 2,

Tridacna giga clam - 2,

$50.00
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Large natural clam - natural,

Large natural clam - natural,

$66.00
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Sea shell tridacna 145mm - sea,

Sea shell tridacna 145mm - sea,

$100.51
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Vintage tridacna clam - , ruffle

Vintage tridacna clam - , ruffle

$39.99
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Indo pacific tridacna gigas - indo-pacific,

Indo pacific tridacna gigas - indo-pacific,

$48.88
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Beautiful tridacna squamosa - beautiful,

Beautiful tridacna squamosa - beautiful,

$24.00
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Tridacna crocea lamarck 1819 - tridacna,

Tridacna crocea lamarck 1819 - tridacna,

$19.99
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Fluted clam shell whole pc - clam,

Fluted clam shell whole pc - clam,

$45.00
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Fluted clam shell whole - fluted,

Fluted clam shell whole - fluted,

$53.10
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Large natural clam half shell - natural,

Large natural clam half shell - natural,

$67.50
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Vtg tridacna gigas - vtg, sea

Vtg tridacna gigas - vtg, sea

$149.99
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Tridacna gigas sea shell - tridacna,

Tridacna gigas sea shell - tridacna,

$115.00
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Vtg tridacna maxima giant - tridacna,

Vtg tridacna maxima giant - tridacna,

$66.00
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Giant white fluted - giant,

Giant white fluted - giant,

$35.00
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Natural giant clam shell - natural,

Natural giant clam shell - natural,

$98.77
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Tridacna pale yellow squamosa - pale,

Tridacna pale yellow squamosa - pale,

$43.00
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Large giant clam shell - giant,

Large giant clam shell - giant,

$299.00
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Tridacna gigas large giant - large,

Tridacna gigas large giant - large,

$79.95
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Natural tridacna clam - natural, shells

Natural tridacna clam - natural, shells

$59.40
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Derasa tridacna clam seashell - clam,

Derasa tridacna clam seashell - clam,

$33.95
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Clam shell tridacna sea - tridacna,

Clam shell tridacna sea - tridacna,

$25.00
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Large genuine ocean giant clam - genuine,

Large genuine ocean giant clam - genuine,

$37.50
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Giant clam shell half maxima - giant,

Giant clam shell half maxima - giant,

$49.99
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Ruffle clam seashell - clam, half

Ruffle clam seashell - clam, half

$16.95
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Vintage giant clam - vintage, half

Vintage giant clam - vintage, half

$18.00
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Tridacna ivory white squamosa - ivory,

Tridacna ivory white squamosa - ivory,

$42.00
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Ruffle clam seashell half - clam,

Ruffle clam seashell half - clam,

$24.00
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Tridacna squamosa super - tridacna, fluted

Tridacna squamosa super - tridacna, fluted

$42.00
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Tridacna gigas natural - gigas, clam

Tridacna gigas natural - gigas, clam

$89.00
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Natural tridacna gigas giant - natural,

Natural tridacna gigas giant - natural,

$16.00
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Tridacna gigas giant natural - tridacna,

Tridacna gigas giant natural - tridacna,

$65.00
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Large whole fluted clam - large, shell

Large whole fluted clam - large, shell

$115.00
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Tridacna squamosa super - tridacna,

Tridacna squamosa super - tridacna,

$46.00
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Clam shell pink resin 6x4 - resin,

Clam shell pink resin 6x4 - resin,

$5.99
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Natural tridacna gigas giant - natural,

Natural tridacna gigas giant - natural,

$35.00
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Tridacna derasa giant - tridacna,

Tridacna derasa giant - tridacna,

$34.99
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Derasa clam seashell - clam, half

Derasa clam seashell - clam, half

$49.95
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Natural whole complete - complete, giant

Natural whole complete - complete, giant

$100.00
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Vintage natural giant clam - vintage,

Vintage natural giant clam - vintage,

$34.98
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Tridacna squamosa fluted - squamosa,

Tridacna squamosa fluted - squamosa,

$79.99
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Vintage white purple - vintage,

Vintage white purple - vintage,

$21.00
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Clam shell tridacna - tridacna, gigas/

Clam shell tridacna - tridacna, gigas/

$18.75
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Pair rare giant tridacna - giant,

Pair rare giant tridacna - giant,

$100.00
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Huge natural giant clam - huge,

Huge natural giant clam - huge,

$74.99
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📊96 listings · from $5.99 · avg $98.59

Browse 96 tridacna listings currently in our index. Prices range from $5.99 to $750, with an average of $98.59. 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 tridacna →

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Everything you need to know about tridacna

Whether you are looking for a brand-new or second-hand tridacna, 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 $5.99, while premium listings can reach $750 — giving you a wide budget spread to work with. The average price of $98.59 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.

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