About Estate Diamond Jewelry
Estate Diamond Jewelry is a New York boutique specializing in antique and vintage engagement rings, rare estate jewelry, signed pieces, and exceptional gemstones. Since 1980, our experts have helped collectors and couples discover distinctive jewels selected for their beauty, craftsmanship, history, and condition. Customers can explore our collection online or meet with our team by appointment at our Fifth Avenue showroom.
OUR STORY
A New York Jewelry Story Since 1980
What began as a one-man operation grew through personal relationships, shared expertise, and a careful eye for jewelry with genuine history and character.
1980
FOUNDED IN NEW YORK CITY
More than four decades of experience with antique jewelry, rare gemstones, and period craftsmanship.
Estate Diamond Jewelry grew one relationship and one exceptional jewel at a time. The same principles that shaped the business in its earliest years continue to guide how we build our collection and work with customers today.
1980 · THE BEGINNING
Michael Khordipour Founds the Business
Michael began Estate Diamond Jewelry in New York City as a one-man operation. Through personal relationships, persistence, and a discerning eye, he gradually built a collection centered on distinctive design, fine craftsmanship, and rare antique pieces.
THE 1980s · A LASTING PARTNERSHIP
Afshin Shaddaie Joins Michael
Afshin brought his own passion for antique jewelry and period craftsmanship. Together, Michael and Afshin developed lasting relationships with collectors, dealers, and jewelry professionals while examining thousands of pieces and refining EDJ’s careful selection process.
TODAY · FIFTH AVENUE AND BEYOND
A Family-Run New York Boutique
Over the following decades, the business grew into a Fifth Avenue showroom and expanded online, allowing customers around the world to explore the collection. EDJ remains family-run, combining decades of experience with personal service, patient guidance, and a shared appreciation for jewelry with genuine history and character.
The business has grown, but the goal remains unchanged: find exceptional jewelry, understand it carefully, and help each customer make an informed decision without pressure.
What We Believe
Exceptional jewelry deserves careful evaluation, honest explanation, and respect for the history it carries. Three principles guide how we select jewelry and assist every Estate Diamond Jewelry customer.
HONEST EVALUATION
We describe each jewel as accurately as possible, considering its age, construction, gemstones, condition, and previous alterations. We also distinguish authentic period jewelry from antique gemstones placed in later or newly handcrafted settings.
EDUCATION WITHOUT PRESSURE
Our role is to provide clear information, answer questions, and help each customer understand the jewelry they are considering. We believe an important purchase should be made with confidence, never through pressure.
PRESERVING EXCEPTIONAL JEWELRY
Antique jewelry reflects the artistry, techniques, and character of another era. We select pieces worthy of preservation and help them continue their stories with a new generation of collectors and couples.
What We Specialize In
Our collection reflects more than four decades of experience with antique jewelry, period craftsmanship, important gemstones, and distinctive design. We focus on jewels that offer beauty, character, historical interest, and lasting appeal.
Antique and Vintage Jewelry
We specialize in jewelry from the Georgian, Victorian, Edwardian, Art Nouveau, Art Deco, Retro, and Mid-Century periods. Each era offers its own approach to design, materials, craftsmanship, and symbolism.
Vintage Engagement Rings
Vintage engagement rings remain at the heart of our collection. We seek rings with distinctive settings, beautiful proportions, fine handwork, and antique diamonds that give each piece an individual character.
Antique Diamonds
Our jewelry frequently features old mine cut, old European cut, and antique cushion cut diamonds. These stones were shaped by hand and are valued for their distinctive proportions, individual faceting, and softer patterns of light.
Signed Jewelry
We acquire signed jewelry from respected historic houses and designers, including rare and collectible pieces selected for their craftsmanship, authenticity, condition, and importance within the maker’s history.
Rare Gemstones
Our collection includes sapphires, emeralds, rubies, natural pearls, and other exceptional gemstones. We consider beauty, rarity, origin, treatment, documentation, and how effectively each stone complements the complete jewel.
Distinctive Estate Pieces
Not every important jewel fits neatly within a single era or category. We also select unusual estate pieces for their design, craftsmanship, wearability, provenance, and ability to stand apart from conventional jewelry.
Clear identification matters. Our collection includes authentic period jewelry as well as antique diamonds placed in later or newly handcrafted settings. We identify these distinctions so customers can understand the age and construction of the jewelry they are considering.
OUR CURATION PROCESS
How We Select Our Jewelry
Every piece is considered as a complete jewel. Its design, history, craftsmanship, gemstones, condition, and wearability all contribute to whether it belongs in the Estate Diamond Jewelry collection.
A certificate can describe a gemstone, but it cannot measure the beauty, character, or craftsmanship of the finished jewel.
01 · DISCOVERY
Finding Pieces with Distinction
Our relationships with collectors, dealers, and jewelry professionals provide access to pieces from many periods and places. We look for jewels with distinctive design, strong craftsmanship, historical interest, and enduring appeal.
02 · AUTHENTICATION
Examining Age and Construction
We examine construction methods, metalwork, stone settings, design details, signatures, and signs of previous alteration. These details help us understand when and how a jewel was made and whether all of its components are original to the same period.
03 · GEMSTONE REVIEW
Considering Every Gemstone
Diamonds and colored gemstones are considered for their beauty, cut, proportions, rarity, treatments, and relationship to the complete design. When appropriate, laboratory documentation provides additional information about important stones.
04 · CONDITION
Assessing Condition and Wearability
Antique jewelry naturally carries evidence of age. We consider previous repairs, metal loss, wear, stone security, structural integrity, and whether the piece can be worn and enjoyed as intended.
05 · CLEAR PRESENTATION
Describing the Jewel Honestly
Our goal is to present each piece clearly, including its known period, materials, gemstones, condition, and relevant documentation. If an antique stone has been placed in a later setting, that distinction should be explained rather than obscured.
MORE THAN FOUR DECADES OF EXPERIENCE
Meet the Experts
Estate Diamond Jewelry is guided by specialists who have spent decades examining antique jewelry, rare gemstones, period craftsmanship, and distinctive design. Our experts combine careful scholarship with personal, pressure-free guidance.
FOUNDER AND CURATOR
Michael Khordipour
Michael founded Estate Diamond Jewelry in 1980 and built the business through personal relationships, persistence, and a discerning eye for fine jewelry. He remains deeply involved in selecting pieces for their beauty, craftsmanship, rarity, and lasting appeal.
ANTIQUE JEWELRY EXPERT
Afshin Shaddaie
Afshin joined Michael during the 1980s and has devoted his career to studying rare antique jewelry and period craftsmanship. He evaluates hundreds of pieces, travels in search of exceptional jewels, and assists customers through patient, pressure-free appointments.
GEMOLOGIST | G.D., C.G.P.
Benjamin Khordipour
Benjamin joined Estate Diamond Jewelry in 2014 after advanced gemological training at the GIA in New York and Gübelin in Switzerland. He specializes in diamonds, colored gemstones, and antique jewelry while helping customers make informed and confident decisions.
PERSONAL SERVICE, WHEREVER YOU ARE
The Estate Diamond Jewelry Experience
Whether you visit our Fifth Avenue showroom or work with us from another part of the country, you receive direct access to knowledgeable specialists. We take the time to answer questions, present each piece clearly, and help you make an informed decision without pressure.
01 · PERSONAL APPOINTMENTS
See the Jewelry Up Close
Visit our Fifth Avenue showroom by appointment to examine pieces in person and compare their proportions, craftsmanship, and character. Customers who cannot travel to New York can schedule a personal video appointment.
02 · CLEAR INFORMATION
Understand What You Are Buying
We explain the known age, construction, gemstones, condition, documentation, and relevant alterations of each jewel. Customers are encouraged to ask detailed questions and take the time they need before making a decision.
03 · SECURE DELIVERY
Insured Overnight Shipping
Jewelry purchased through our website includes complimentary insured shipping within the United States. Every piece is carefully prepared and securely packaged before leaving our showroom.
04 · PURCHASE PROTECTION
Confidence After Your Purchase
Eligible purchases include a 14-day return period, complimentary initial ring sizing, and a one-year limited warranty.
Let Us Help You Find the Right Piece
Meet with us in New York or schedule a personal video appointment.
View the complete return policy, warranty, and upgrade program terms
INDEPENDENT RECOGNITION AND LASTING RELATIONSHIPS
Why Customers Trust Estate Diamond Jewelry
Fine jewelry is a deeply personal and significant purchase. Customers have trusted Estate Diamond Jewelry since 1980 for informed guidance, distinctive pieces, attentive service, and a purchasing experience that respects the importance of the occasion.
A CUSTOMER’S EXPERIENCE
“The entire experience with Benjamin and his team was delightful from start to finish. I couldn’t be more pleased.”
Anna Kathryn Word
Google customer review
A+
BBB RATING
BBB Accredited Business
Estate Diamond Jewelry has been BBB accredited since 2014 and currently holds the organization’s highest rating.
4.9
ETSY RATING
More Than 1,000 Etsy Reviews
Our Etsy shop has earned a 4.9 out of 5 average rating from more than one thousand customer reviews.
5.0
WEDDINGWIRE
Recommended by 99% of Couples
WeddingWire customers have awarded Estate Diamond Jewelry a 5.0 rating for service, responsiveness, professionalism, value, and flexibility.
TRUST BUILT ON EXPERIENCE AND KNOWLEDGE
Established in 1980
More than four decades serving jewelry collectors and couples from New York and around the world.
Advanced Gemological Training
Professional training from the GIA in New York and Gübelin in Switzerland supports our evaluation of diamonds and colored gemstones.
Recognized Jewelry Expertise
Expert commentary from our team has appeared in Forbes, CNBC, Brides, and Rapaport.
EXPERIENCE THE COLLECTION IN PERSON
Visit Our Fifth Avenue Showroom
A vintage jewel can reveal details in person that photographs cannot fully capture. Visit our New York City showroom to examine the craftsmanship, proportions, gemstones, and individual character of the pieces that interest you.
Your appointment will be personal and unhurried, with an experienced member of our team available to answer questions and help you compare your options. If you cannot visit New York, we also offer private video appointments.
SHOWROOM INFORMATION
Estate Diamond Jewelry
608 Fifth Avenue, Suite 503
New York, NY 10020
View Directions
Showroom Hours
Monday – Thursday: 10:00 AM – 5:30 PM
Friday: 9:30 AM – 1:30 PM
Viewing by appointment only
Speak With Our Team
(212) 265-3868
info@estatediamondjewelry.com