GIA Certified Cushion Brilliant Natural Unheated Ceylon, Sri Lanka Sapphire (6.43 carats)
Presenting an extraordinarily rare and unheated 6.43-carat natural Ceylon sapphire—a true gem of unmatched beauty and rarity, and the finest in our collection. Sourced from the illustrious mines of Sri Lanka, also known as Ceylon, this sapphire exemplifies the island’s legendary reputation for producing some of the world’s most treasured sapphires. Unheated and untouched by enhancements, this gemstone preserves its pure, natural state, making it a prized possession for the most discerning collectors.
Measuring a magical 11.11 x 9.05 x 7.09 mm, this sapphire’s dimensions lend it a unique allure. The classic cushion shape, combined with a modified brilliant cut on the crown, creates an extraordinary sparkle, while the step-cut pavilion adds an elegant depth, drawing the viewer into its captivating, deep blue hue. Its transparency and clarity allow light to illuminate its vivid color from every angle, showcasing the vibrant intensity of this sapphire’s natural blue.
Unheated Ceylon sapphires of this caliber are exceptionally rare, and few possess this enchanting shade and clarity. For those seeking the pinnacle of gemological excellence, this 6.43-carat sapphire is a once-in-a-lifetime acquisition—a magical piece of nature’s art that reflects the purity and heritage of one of the world’s most revered sapphire origins.
Processing + Shipping + Returns
In-stock items are processed and shipped within 3-5 business days.
Special Orders (made-to-order, special orders or back-ordered items) may take as little as 2 weeks and up to 2 months to fulfill depending on the product). If you have a strict deadline, please reach out to us before placing an order and we will do our best to accommodate.
Custom Designs may take 2 to 8 weeks (timing will vary by complexity) and will be processed and shipped within 3-5 business days of completion.
Questions? Email us at info@theclassicgem.com, call/text us at 312 291 1436 or schedule a visit here to view items available in-store.
Fully Insured Shipping
We fully insure each item for the final purchase price, from the time it is in transit until the time it arrives at its destination.
Orders of less than $10,000 will be shipped with full insurance via UPS or FedEx second-day air.Items above $10,000 will be shipped and insured via UPS or FedEx next-day air.
International Orders
All International orders are final. Prices and shipping fees do not include import and customs duties, Value Added Taxes (“VAT”), tariffs, and other fees that may be levied by the destination country, all of which are the responsibility of the purchaser.
Returns & Exchanges
We offer exchanges on in-stock items (or items purchased out of the showcase) within 10 days of purchase. For made-to-order, or custom-designed pieces, all sales are final. If you are unsure about a product, feel free to reach out to us and we will do our best to provide guidance and answer any questions you may have so that you can feel confident in your choice.