Coast Diamonds

Elegant and Sylish
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John Hardy

Discover John Hardy's powerful and inspiring collections
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DESIGN YOUR OWN WEDDING AND ETERNITY BAND
Let our talented craftsmen breathe life into your love story by designing a luxurious, bespoke wedding or eternity band. Tailored to your budget, relationship, and individual style.
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Jewelry Store In Sayville, NY.

We are a premier jewelry store in Sayville, NY.
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Loose Diamond Search

All loose diamonds we sell are GIA certified and laser inscribed as well as being verified with our state of the art diamond grading equipment.

  • Round
  • Cushion
  • Princess
  • Oval
  • Marquise
  • Pear
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Sayville's Home for Fine Jewelry
MICHELE WATCHES
Watches
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Sayville's Home for Fine Jewelry
Ring Builder
Create Your Own Engagement Ring
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Sayville's Home for Fine Jewelry
Jewelry Services
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Sayville's Home for Fine Jewelry
Special Financing
Flexible Financing Options available
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Sayville's Home for Fine Jewelry
Gold Buying
Bring it in and we'll pay cash
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Designer Collections

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