“New York Craft. Family Warmth.”

30+ years in the Diamond District—bridal, custom jewelry, and certified luxury timepieces.

30+ years in the Diamond District—bridal, custom jewelry, and certified

Sea Wave Diamonds is a family-owned NYC studio with 30+ years of crafting bridal and bespoke jewelry using clearly labeled GIA-graded diamonds.

Our sister brand, SWD Watches, offers authenticated new and pre-owned watch icons.

Our Story

Sea Wave Diamonds began as a family workshop in New York’s Diamond District more than 30 years ago. We built our name on bridal, engagement, and custom pieces crafted with care—and on treating clients like family. Today, our sister storefront, SWD Watches, curates new and pre-owned icons from Rolex, Patek, AP, and Cartier, each authenticated by certified watchmakers. Luxury here is warm, transparent, and designed to last a lifetime.

Our Beginning

Sea Wave Diamonds started as a family workshop in NYC’s Diamond District over 30 years ago—built on bridal, engagement, and custom pieces crafted with care.

How We Work

Clear specs, honest timelines, and GIA standards guide every piece. Luxury here is warm, transparent, and tailored to you.

SWD Watches

Our sister storefront curates new and pre-owned icons—Rolex, Patek Philippe, Audemars Piguet, Cartier—each authenticated by certified watchmakers.

Trust & Policies

nsured FedEx with signature, exchange-only returns, and a 1-year watch warranty (conditions apply). Reviews from Google & Yelp are linked on every page

Meet Our Team

Three decades of craft, one family-style studio.

Sea Wave Diamonds is a family-owned jeweler with 30+ years in New York’s Diamond District, known for bridal, engagement, and custom pieces crafted with care. We pair GIA-grad

Sea Wave Diamonds is a family-owned jeweler with 30

Sea Wave Diamonds is a family-owned jeweler with 30

Emmanuel

Sea Wave Diamonds is a family-owned jeweler with 30+ years in New York’s Diamond District, known for bridal, engagement, and custom pieces crafted with care. We pair GIA-grad

Sea Wave Diamonds is a family-owned jeweler with 30

Sea Wave Diamonds is a family-owned jeweler with 30

Emmanuel

Sea Wave Diamonds is a family-owned jeweler with 30+ years in New York’s Diamond District, known for bridal, engagement, and custom pieces crafted with care. We pair GIA-grad

Sea Wave Diamonds is a family-owned jeweler with 30

Sea Wave Diamonds is a family-owned jeweler with 30

Emmanuel

Sea Wave Diamonds is a family-owned jeweler with 30+ years in New York’s Diamond District, known for bridal, engagement, and custom pieces crafted with care. We pair GIA-grad

Sea Wave Diamonds is a family-owned jeweler with 30

Sea Wave Diamonds is a family-owned jeweler with 30

Emmanuel
Image

What Our Customers are saying

Image

Seamless from design to ‘yes’”

We brought a Pinterest board and a budget—left with a custom oval solitaire that looks twice the price. Clear timelines, GIA paperwork, and painless resizing.

Star 1 Star 2 Star 3 Star 4 Star 5

Brenda Langley

Jewellery Enthusiasts
Image

Seamless from design to ‘yes’”

We brought a Pinterest board and a budget—left with a custom oval solitaire that looks twice the price. Clear timelines, GIA paperwork, and painless resizing.

Star 1 Star 2 Star 3 Star 4 Star 5

Brenda Langley

Jewellery Enthusiasts
Image

Seamless from design to ‘yes’”

We brought a Pinterest board and a budget—left with a custom oval solitaire that looks twice the price. Clear timelines, GIA paperwork, and painless resizing.

Star 1 Star 2 Star 3 Star 4 Star 5

Brenda Langley

Jewellery Enthusiasts
Image

Seamless from design to ‘yes’”

We brought a Pinterest board and a budget—left with a custom oval solitaire that looks twice the price. Clear timelines, GIA paperwork, and painless resizing.

Star 1 Star 2 Star 3 Star 4 Star 5

Brenda Langley

Jewellery Enthusiasts
Image

Seamless from design to ‘yes’”

We brought a Pinterest board and a budget—left with a custom oval solitaire that looks twice the price. Clear timelines, GIA paperwork, and painless resizing.

Star 1 Star 2 Star 3 Star 4 Star 5

Brenda Langley

Jewellery Enthusiasts
Image

Seamless from design to ‘yes’”

We brought a Pinterest board and a budget—left with a custom oval solitaire that looks twice the price. Clear timelines, GIA paperwork, and painless resizing.

Star 1 Star 2 Star 3 Star 4 Star 5

Brenda Langley

Jewellery Enthusiasts