Skip to main contentSkip to footer
  • (770) 578-0598
  • Visit Our Showroom
  • Contact Us
  • Toggle Toolbar Search Menu
  • Toggle My Account Menu
    Login
    Forgot Password?

    Don’t have an account? Sign up now

  • Toggle My Wish List
  • Toggle Search Menu
  • Toggle My Wishlist
  • Toggle Shopping Cart Menu
testing meta info
  • Engagement
    Engagement Rings
    Customizable Engagement RingsSemi-Set Engagement Rings
    Pre-set Engagement Rings
    Diamond Engagement RingsLab Diamond Engagement RingsShop all Pre-Set Engagement Rings
    Shop By Style
    SolitaireClassicUnique HaloThree StoneVintage
    Shop By Shape
    RoundOvalEmeraldPearCushionMarquise
    Featured
    Hidden Halo Engagement RingsGabriel & Co
    Education
    Engagement Ring BenefitsJewelry FinancingLifetime WarrantyDesign Concierge
    Browse All Engagement
  • Wedding
    Women
    Classic BandsModern BandsAnniversary BandsCurved BandsLuxe Bands
    Men
    Classic BandsModern Metal BandsMixed Metal BandsPattern BandsStones & Inlays
    Men's By Metal
    PlatinumYellow GoldWhite GoldRose Gold
    Modern Metals
    Damascus SteelMeteoriteTantalumZirconium
    Designers
    Chris Ploof DesignsAmmara StoneHeavy Stone Rings
    Wedding Day Jewelry
    Diamond StudsDiamond PendantsTennis Bracelets
    Build Your Wedding Band
    Menu image
  • Diamonds
    Natural Diamonds
    RoundPrincessEmeraldAsscherRadiantCushionOvalPearMarquiseHeart
    Canadamark Diamonds
    Specialty Diamonds
    Lab-Grown Diamonds
    Search Lab Diamonds8x Lab DiamondsSustainably Rated Lab Diamonds
    Featured
    Salt & Pepper DiamondsPre-Set Engagement Rings
    Education
    Diamond FinancingLifetime Diamond UpgradeAbout Lab Grown Diamonds
    Shop Loose Diamonds
  • Custom
    DESIGN YOUR OWN
    Custom Design JewelryWhat to ExpectClient Stories
    CUSTOM JEWELRY
    Custom Design GalleryAward Winning DesignsOur DesignersOur Process
    ONE OF A KIND
    Handmade JewelryHand Engraved JewelryVisit Us In Marietta
    Menu image
  • Jewelry
    SEARCH JEWELRY
    RingsEarringsNecklacesBraceletsWatchesShop All Jewelry
    SHOP BY STYLE
    Diamond Stud EarringsCocktail RingsTennis BraceletsHoop EarringsMen’s JewelryEstate Jewelry
    SERVICES
    Jewelry RepairCustom JewelrySell Your JewelryAppraisalsEar PiercingView All Services
    FEATURED
    Gabriel & Co. FashionShinola WatchesHandmade JewelryreDesign Your RingDavid Douglas Rewards
    Menu image
  • About
    ABOUT US
    Our StoryResponsible SourcingIn Our CommunityAward Winning
    SERVICES
    Jewelry RepairCustom JewelrySell Your JewelryAppraisalsEar PiercingView All Services
    STAY CONNECTED
    Contact UsDavid Douglas Blog
    STAY SOCIAL
    InstagramFacebook
    QUICK LINKS
    Return PolicyEngagement Ring BenefitsLifetime WarrantyJewelry FinancingDavid Douglas Rewards
    Menu image
  • (770) 578-0598
  • Visit Our Showroom
  • Contact Us
  • Toggle Toolbar Search Menu
  • Toggle My Account Menu
    Login
    Forgot Password?

    Don’t have an account? Sign up now

  • Toggle My Wish List
testing meta info
Log In My Cart
  1. Home
  2. Blog
  3. 167-Carat 'Mackay Emerald' Was Prized Possession of Opera Star Anna Case

167-Carat 'Mackay Emerald' Was Prized Possession of Opera Star Anna Case

Published: May 3, 2022
167-Carat 'Mackay Emerald' Was Prized Possession of Opera Star Anna Case
Author: 
Howard Cohen

Here's the story about how an impoverished New Jersey youngster became a prima donna at the New York Metropolitan Opera, married a telecommunications executive and was gifted what was to become one of the most famous emeralds of all time.

Today, the 167-carat "Mackay Emerald" is the largest cut emerald in the Smithsonian National Gem Collection, but 91 years ago the magnificent stone was a wedding gift from ITT Corporation executive Clarence H. Mackay to Anna Case, a world renowned soprano.

The oval-shaped gem was the centerpiece of a Cartier-designed Art Deco pendant that dangled from an elaborate necklace adorned with 2,191 colorless diamonds and 35 smaller emeralds.

Case cherished the piece until her death in 1984 at the age of 96, at which time it was bequeathed to the Smithsonian, where it still resides in the Gem Hall at the National Museum of Natural History in Washington, DC.

Case could only dream of such luxury as she grew up in near-poverty in Clinton, NJ. She spoke about having just one dress and one pair of shoes per year. In her later years, she was known to half-joke that her family was so poor that her parents couldn't even afford to give her any affection.

As a youth, she sang with her church choir and borrowed money from a local grocer to take music lessons. By 1909, at the age of 25 and against all odds, she would make her debut at the Metropolitan Opera.

Case was such an accomplished singer that inventor Thomas Alva Edison employed her voice extensively in "tone tests" of whether a live audience could tell the difference between the actual singer and a recording.

The Mackay Emerald was mined in Muzo, Colombia, a region well known for producing some of the world's finest emeralds. These green gems were used by indigenous peoples for at least 1,000 years before the arrival of the Spanish conquistadores in the 16th century.

Although spurred primarily by their passion for gold and silver, the Spanish quickly recognized the potential of the exquisite green crystals and took control of the mines. Emeralds became popular among European royalty and were shipped from the New World by the boatload. The great richness of the Colombian mines led to a glut of emeralds in Europe, triggering a brisk trade of the gemstones to the Middle East and India.

As May's official birthstone, emerald is the most valuable variety of the beryl family and is known to display a wide variety of visible inclusions, which are referred to as “jardin” (French for “garden”). These imperfections do not detract from the stone’s beauty but, instead, give each stone a unique fingerprint and distinct character.

Colombia continues to be the world’s most prolific producer of fine emeralds, constituting more than half of the global production.

Credit: Mackay Emerald photos by Chip Clark / Smithsonian, digitally enhanced by SquareMoose. Photo of Anna Case by The Library of Congress, Public domain, via Wikimedia Commons.

Categories
Doug's Cool ThingsDavid Douglas Diamonds3
  • Previous Article
  • Next Article
Contact Us
Call Us 770.578.0598
Text Us 770.578.0598
Email Us Here

Visit Us
3605 Sandy Plains Road
Marietta, GA 30066

Tues-Fri: 10am - 6pm
Sat: 10am - 4pm
Sun: CLOSED
Mon: CLOSED

Quick Links
  • My Account
  • Returns
  • Our Services
  • Lifetime Warranty
  • Diamond Upgrade
  • Flexible Financing
  • David Douglas Rewards
Our Services
  • Jewelry Repair
  • Custom Jewelry
  • Sell Your Jewelry
  • Jewelry Appraisals
  • Ear Piercing
  • Permanent Jewelry
Shop Jewelry
  • All Jewelry
  • Rings
  • Earrings
  • Necklaces
  • Bracelets
  • Watches
About Us
  • Our Story
  • Responsible Sourcing
  • In Our Community
  • Our Designers
  • Client Stories
Follow Us
SITE MAP PRIVACY & SECURITY Lifetime Warranty RETURN POLICY

© 2025 David Douglas Diamonds & Jewelry. All Rights Reserved. Website designed, maintained, and hosted by Punchmark

  • Return Policy
  • Privacy Policy
  • Terms & Conditions
  • Accessibility Statement

© 2026 David Douglas Diamonds & Jewelry. All Rights Reserved.

Powered by: Punchmark

My Bag
Shopping cart contents
Loading

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