Skip to primary navigationSkip to main contentSkip to footer
  • Schedule an Appointment
  • AccountToggle My Account Menu
  • WishlistToggle My Wish List
  • Cart (0)Toggle My Shopping Cart
  • Apply for Financing
Cornell's Jewelers logo
  • Engagement & Wedding Rings
    Engagement Rings
    Shop all Engagement RingsClassicGemstoneHaloModernSide DiamondsSolitareThree StoneVintage
    Engagement By Designer
    Christopher DesignsFana JewelryJB StarJack KelegeMartin FlyerMemoireTacori
    Wedding Bands
    Men’s Wedding BandsWomen's Wedding Bands
    Shop By Metal
    PlatinumRose GoldWhite GoldYellow Gold
    Wedding Bands By Designer
    Christopher DesignsDianaFana JewelryFrederick GoldmanJB StarJack KelegeMartin FlyerMemoireTacoriTriton
    Diamonds
    Diamond Buying TipsDiamond CleaningLearn About Diamonds
    Financing
    Financing Options

    Explore All Engagement & Wedding Rings
  • Designers
    A. LinkArt-CraftArmentaAssoulineBeatriz BallChristopher DesignsCornell's Collection
    Dripping in GemsFanaGrand SeikoJack KelégeJB StarJohn HardyJonathan Adler
    Julie VosKwiatLAGOSMarco BicegoMarianiMartin FlyerMazza
    Meira T.MemoireNambeOlivia RiegelPenny PrevillePhillips HouseSethi Couture
    Sloane StreetSwarovskiTacori

    Designers
  • Jewelry & Gifts
    Bracelets
    Gemstone BraceletsGold BraceletsPearl BraceletsSilver BraceletsDiamond BraceletsBangle Bracelets
    ChainsCharms
    Earrings
    Clip On EarringsDangle EarringsDiamond EarringsGemstone EarringsGold EarringsHoop EarringsHuggie HoopsPearl EarringsSilver EarringsStud Earrings
    Engagement Rings
    Giftware
    BooksPicture FramesRing HoldersServeware
    Men's Jewelry
    Men's BraceletsMen's NecklacesMen's RingsCufflinks
    Necklaces
    Gemstone NecklacesGemstone Pendants & CharmsGold ChainsGold NecklacesGold Pendants & CharmsPearl NecklacesSilver ChainsSilver NecklacesSilver Pendants & Charms
    Pendants
    Rings
    Diamond RingsFashion RingsGemstone RingsGold RingsPearl RingsSilver Rings
    Sunglasses
    Watches
    Men's WatchesWomen's WatchesWatch Straps & BraceletsPreowned Timepieces
    Wedding Bands
    Men's Wedding BandsWomen's Wedding BandsDiamond Wedding BandsEternity BandsAnniversary Rings
    Diamond Essentials
    Diamond StudsDiamond Tennis BraceletsDiamond HoopsDiamond Necklaces
    Birthstone Jewelry
    GarnetAmethystAquamarineDiamondEmeraldPearlAlexandriteRubyPeriodtSapphireOpalTourmalineCitrineTopazBlue TopazTurquoise

    Jewelry & Gifts
  • Timepieces
    Shop Timepieces
    Pre-owned TimepiecesMen's TimepiecesTimepiece Straps & BraceletsWomen's Timepieces
    Shop By Brand
    Grand SeikoHamiltonLuminoxMichele WatchMondaineOMEGAOrisTissot

    Explore All Timepieces
  • Events
  • Our Store & Services
    All Services
    Battery Replacement Program
    Career Opportunities
    Community Involvement
    Custom Design
    Engraving
    Events
    Financing
    Insurance Replacement
    News
    Pearl Restringing
    Permanent Jewelry
    Product Cleaning
    Repair
    Returns
    Testimonials
    The CJ's Story
    Roc Report Magazine
    We Buy Gold & Diamonds

    Explore All Our Store & Services
  • Sale
Cornells Jewelers Rochester, NY

Natural Diamonds

The romance of a natural diamond cannot be matched: formed within volcanic tubes over billions of years of heat and pressure, diamonds are a gorgeous rarity that signify true love and affection. Diamonds are the only gems composed of a single element, carbon. Yet despite their homogenous chemical makeup, each diamond is as unique as a snowflake.

Cornells Jewelers Rochester, NY

Diamonds are a ten on the Mohs hardness scale, making them the hardest substance discovered. For rings and bracelets, diamonds are indispensable. They are much more resistant to scuffs and chips than other gemstones, which is one of the reasons they are a classic in engagement rings.

Natural diamonds are graded according to the 4 C’s — color, clarity, cut, and carat. They range from nearly clear to a subtle yellow color. Clarity refers to the amount of inclusions. Combined, color and clarity can help you determine how pure your diamond is. Cut tells you which shape the diamond is, and carat refers to the size (weight) of the diamond. Altogether, the 4 C’s can tell you how valuable your diamond is from a monetary point of view, but they pale in comparison to the sentimental and emotional value of a diamond.

At Cornell's Jewelers, we take finding the perfect diamond very seriously. Shop or collection in-store or online to find the diamonds you’ll wear forever.

Round Princess Emerald Asscher Radiant
Oval Marquise Pear Cushion Heart
Shop Natural Diamonds
Commonly Asked Questions We get a lot of questions about diamonds. Here are answers to the most commonly asked questions: Cornells Jewelers Rochester, NY

Commonly Asked Questions

We get a lot of questions about diamonds. Here are answers to the most commonly asked questions:

What are conflict-free diamonds?

Conflict-free diamonds are diamonds that comply with the Kimberley Process Certification System (KPCS). This process was co-founded by De Beers and international governments in 2003 to ensure that “rough” diamonds (also known as “conflict” diamonds) are not imported or exported to prevent de-stabilizing legitimate government entities.

Are natural diamonds worth the money?

Diamonds may seem pretty expensive, but keep in mind that they are a limited resource. It takes millions of years for diamonds to form and be pushed to the Earth’s crust. Ultimately, it’s up to you to decide, but we think that the rarity and durability of a diamond makes them worth every penny! Diamonds can also be passed down as heirlooms for generations upon generations and re-set to create modern jewelry for everyone.

Why do natural diamonds hold their value better than lab-grown diamonds?

Natural diamonds are formed over billions of years, and therefore there is a finite supply of natural diamonds available. Lab-grown diamonds, on the other hand, can be easily created as demand scales. While lab-grown diamonds can be less expensive, natural diamonds hold their value over time.

At Cornell's Jewelers, we believe that the jewelry-buying process should leave you confident in your purchase. Book a virtual appointment or visit our showroom today.

Visit Us
Cornell's Jewelers
3100 Monroe Avenue
Rochester, NY 14618
(585) 264-0100
Store Information

About Us
  • Contact Us
  • Testimonials
  • Privacy Policy
  • Terms and Conditions
  • Roc Report Magazine
Store Hours
Mon - Wed:10:00am - 5:30pm
Thursday:10:00am - 7:00pm
Friday:10:00am - 5:30pm
Saturday:10:00am - 5:00pm
Sunday:Closed
Follow Us

    With a legacy spanning over a century, Cornell's Jewelers has transformed from a modest showroom into a distinguished fine jewelry store in Rochester, NY. The iconic clock tower stands testament to three generations of the Cornell family's dedication. They have tirelessly curated a collection of diamonds, jewelry, and timepieces, meeting the highest professional standards and capturing the hearts of all who enter our store. This tower symbolizes our journey, from the early days of clock repairs to becoming a destination for custom designs, diamond selection, and unparalleled service. At Cornell's Jewelers, love lives, manifested in every crafted piece, and every moment celebrated with timeless elegance.

      © 2025 Cornell's Jewelers. All Rights Reserved. Website designed, maintained, and hosted by Punchmark. Accessibility Statement.

      Learn how we use cookies in our Privacy Policy or manage cookie preferences.