The Kantor Gems Collector’s Library

The Kantor Gems Collector’s Library

Welcome to the Kantor Gems Collector’s Library.

Whether you are purchasing your first estate ring, researching a family heirloom, building a fine jewelry collection, or simply fascinated by the artistry of antique jewelry, you've come to the right place.

Our Education Center was created to help collectors, buyers, and jewelry enthusiasts better understand the history, craftsmanship, gemstones, designers, and periods that make antique and estate jewelry so remarkable. Rather than providing short articles or quick definitions, we've built an expanding library of comprehensive guides designed to answer the questions collectors ask before making an important purchase.

Every guide is written to help you buy with greater confidence, recognize exceptional craftsmanship, understand what influences desirability, and appreciate the stories behind the jewelry itself.

At Kantor Gems, we believe beautiful jewelry deserves knowledgeable collectors.

Our goal is not simply to sell jewelry—it is to help preserve the history, artistry, and craftsmanship of extraordinary pieces while making that knowledge accessible to everyone.

Start Here

If you're new to antique and estate jewelry, begin with these foundational guides.

They explain the terminology, history, and buying considerations that will make every other guide easier to understand.

Antique Jewelry vs. Estate Jewelry vs. Vintage Jewelry

One of the most common questions in the jewelry world is the difference between antique, estate, and vintage jewelry. Although these terms are often used interchangeably, they describe different characteristics of a piece.

This guide explains:

  • What qualifies as antique jewelry

  • What estate jewelry actually means

  • How vintage jewelry is defined

  • Why these distinctions matter

  • How collectors use these terms

  • Common misconceptions

  • Buying considerations

Whether you're shopping for an engagement ring, a signed designer bracelet, or a family heirloom, understanding these categories is one of the first steps toward becoming a knowledgeable collector.

Estate Jewelry Buying Guide

Purchasing estate jewelry is different from buying newly manufactured jewelry.

Our buying guide explains how professionals evaluate:

  • Authenticity

  • Condition

  • Repairs

  • Restoration

  • Gemstone quality

  • Metal quality

  • Hallmarks

  • Value

  • Insurance

  • Appraisals

You'll also learn the questions every buyer should ask before making an important purchase.

Why Buy Estate Jewelry?

Estate jewelry offers far more than beauty.

Collectors appreciate estate jewelry because it combines craftsmanship, individuality, history, sustainability, and timeless design.

In this guide you'll learn why estate jewelry continues to attract collectors around the world and what makes exceptional pieces stand apart from mass-produced modern jewelry.

Explore Jewelry History

Understanding jewelry history helps explain why pieces from different periods look and feel so different.

Rather than following changing fashion trends alone, jewelry has evolved alongside technological advances, artistic movements, cultural influences, and historical events.

Our historical guides introduce the defining characteristics of each major design period and explain how craftsmanship evolved over time.

Antique Jewelry Eras Explained

Explore the major historical periods that continue to influence collectors today:

  • Georgian

  • Victorian

  • Edwardian

  • Art Nouveau

  • Art Deco

  • Retro

  • Mid-Century Modern

Each guide explains the period's history, defining design characteristics, gemstones, metals, craftsmanship, and how professionals identify authentic examples.

Learning these periods makes it much easier to recognize jewelry styles while shopping or researching older pieces.

Learn About Diamond Cuts

Diamonds have fascinated collectors for centuries, but not every diamond sparkles the same way.

Changes in technology, lighting, and cutting techniques created dramatically different diamond cuts throughout history.

Our diamond guides explain:

  • Rose Cut diamonds

  • Old Mine Cut diamonds

  • Old European Cut diamonds

  • Transitional Cut diamonds

  • Round Brilliant diamonds

  • Emerald Cut diamonds

  • Asscher Cut diamonds

  • Cushion Cut diamonds

You'll learn why antique diamonds have a distinctive appearance, how to identify each cut, and why collectors often seek older hand-cut diamonds for their individuality and historic charm.

Discover Colored Gemstones

From emeralds and rubies to pearls and opals, colored gemstones have been treasured for thousands of years.

Our gemstone guides explain:

  • Natural formation

  • Durability

  • Color

  • Treatments

  • Origins

  • Collectibility

  • Care

  • Buying considerations

Understanding gemstones allows buyers to appreciate each piece beyond its appearance and make more informed decisions when selecting fine jewelry.

Discover the World's Great Jewelry Houses

Some of history's most celebrated jewelry has been created by designers and maisons whose craftsmanship, innovation, and artistic vision continue to influence fine jewelry today.

Our designer guides explore the history, signatures, hallmarking practices, and collecting appeal of the world's most respected jewelry houses.

Signed Designer Jewelry Guide

Learn about renowned designers and jewelry houses, including:

  • Belperron

  • Boucheron

  • Buccellati

  • Cartier

  • Chaumet

  • David Webb

  • Harry Winston

  • JAR

  • Jean Schlumberger

  • Oscar Heyman

  • Raymond Yard

  • Seaman Schepps

  • Tiffany & Co.

  • Van Cleef & Arpels

  • Verdura

Each designer guide explores the history of the house, signature design characteristics, hallmarks, craftsmanship, notable creations, collecting considerations, and authentication tips.

Whether you're purchasing a signed brooch, bracelet, necklace, ring, or pair of earrings, understanding the maker behind the piece provides valuable insight into its artistry and historical significance.

Learn to Identify Fine Jewelry

Every piece of fine jewelry tells a story through its design, construction, materials, and markings.

Learning how professionals identify jewelry helps collectors understand authenticity, age, origin, and craftsmanship.

Jewelry Hallmarks & Maker's Marks

This guide explains:

  • Gold purity marks

  • Platinum marks

  • Silver marks

  • Maker's marks

  • Designer signatures

  • Assay office marks

  • Country hallmarks

  • Date letters

  • Where hallmarks are found

  • How professionals authenticate jewelry

You'll also learn why hallmarks are only one part of identifying fine jewelry and how experienced jewelers evaluate a piece using multiple characteristics.

Antique & Estate Engagement Rings

Engagement rings have evolved dramatically over the past two centuries.

From delicate Edwardian platinum settings to bold Art Deco geometry and elegant Mid-Century designs, antique and estate engagement rings offer craftsmanship and individuality that cannot be replicated through mass production.

Our engagement ring guide covers:

  • Historic engagement ring styles

  • Antique diamond cuts

  • Popular settings

  • Ring sizing

  • Durability

  • Daily wear

  • Buying considerations

  • Caring for antique engagement rings

Whether you're searching for a one-of-a-kind proposal ring or an heirloom-quality diamond, this guide will help you understand the qualities that distinguish exceptional antique and estate engagement rings.

Caring for Fine Jewelry

Proper care helps preserve the beauty and structural integrity of fine jewelry for future generations.

Our Jewelry Care & Restoration Guide explains:

  • Cleaning recommendations

  • Safe storage

  • Professional inspections

  • Prong maintenance

  • Clasp maintenance

  • Gemstone care

  • Pearl care

  • Restoration considerations

  • Insurance recommendations

Understanding how to care for your jewelry helps protect both its beauty and longevity.

Browse by Collection

Explore our curated collections of fine jewelry.

  • Antique Jewelry

  • Estate Jewelry

  • Vintage Jewelry

  • Engagement Rings

  • Rings

  • Earrings

  • Necklaces

  • Bracelets

  • Brooches

  • Diamond Jewelry

  • Emerald Jewelry

  • Ruby Jewelry

  • Sapphire Jewelry

  • Signed Designer Jewelry

Each collection has been carefully assembled to showcase exceptional craftsmanship, timeless design, and enduring quality.

Continue Your Education

Our Jewelry Education Center is continually expanding with new guides covering antique jewelry, gemstones, historic jewelry periods, designer houses, collecting advice, and identification resources.

Whether you're researching a family heirloom, comparing diamond cuts, learning about hallmarks, or searching for the perfect estate jewel, we invite you to continue exploring and deepen your understanding of fine jewelry.

Knowledge allows collectors to appreciate not only the beauty of a piece, but also the history, craftsmanship, and artistry that make it truly special.

About Kantor Gems

Kantor Gems specializes in antique, estate, vintage, and signed fine jewelry. Every piece is selected for its craftsmanship, authenticity, historical significance, and timeless beauty.

Our Jewelry Education Center reflects the same philosophy that guides our collection: informed buyers become confident collectors. By sharing reliable, experience-based information, we hope to help every visitor better understand the remarkable world of fine jewelry and discover pieces that can be appreciated for generations.

Begin Exploring

Whether you're just beginning your journey or have collected fine jewelry for years, we invite you to explore our educational guides and curated collections.

Learn the stories behind exceptional jewelry. Discover the craftsmanship that defines each era. Understand the qualities that distinguish extraordinary pieces. Then browse our collection to find jewelry that reflects your personal style and appreciation for history, artistry, and enduring design.