Antique 1920s Old Mine Cut Diamond Engagement Ring by The White Rose Jewelry Company

The Old Mine Cut diamond at the heart of this ring represents a pinnacle of early 20th-century gemstone artistry. This particular stone exemplifies the distinctive characteristics that make Old Mine Cut diamonds highly sought by collectors and jewelry enthusiasts—a cutting style that predates the modern Brilliant Cut and showcases a unique interplay of light and shadow. The faceting pattern creates a warm, romantic glow that distinguishes Old Mine Cut stones from their contemporary counterparts, making each piece a window into the gemological preferences and technical capabilities of the 1920s era. Set in 18-karat white gold by The White Rose Jewelry Mfg. Co., this diamond is complemented by the maker's signature deeply carved floral motifs—such as delicate pansies—that flow continuously around the band. The combination of the Old Mine Cut diamond's inherent character with the meticulous hand-finishing of the Art Deco setting creates a ring of exceptional historical and aesthetic significance. Marked authentically with "18K PATD WHITE ROSE," this piece offers both documented provenance and the timeless appeal of a gemstone that has captivated collectors for over a century.

Metal: 18K White Gold
Gem: Old Mine Cut Diamond .40 Carats, G in Color, SI2 in Clarity
Gem Measurements: 3.5 mm, Round
Ring Size: 5.50
Marks: "18K PATD WHITE ROSE" Stamped on the inside band

• We offer sizing on most of our rings.
• If the ring is an eternity band, has a continuous pattern, or if the ring has to change more than 3 sizes, please contact us so we can be sure it’s possible. 
• Upon checkout, please make note of the size you need your ring order to be.
• Sizing typically takes 2-3 weeks before the item is shipped. 
• Any rings over $1,000, we size for free.  If the ring is under $1,000, please contact us and we’re happy to quote you for the sizing, or we can invoice you after the purchase.

• If you receive an item and decide it’s not what you had in mind, you can return it for a full refund within 10 days.  The 10 day refund period begins the day you sign for the package. 
• We also offer a 30 day store credit/exchange policy for any item in the store.  
• Items purchased through our payment or layaway plans are eligible for store credit/exchange returns only.  Refunds will not be given for items purchased through layaway.

• Most items will be shipped using USPS Priority or Ground mail, with tracking, signature and insurance.  
• Fedex, UPS, or Express are available upon request and for an additional fee.
• Please allow us a 3-7 business day processing time after you complete your order.
• Custom orders take 2-3 weeks production time before shipment.
• After shipment, packages within the US should arrive within 1-3 business days.
• International shipments should arrive within 7-14 days.
• Please contact us directly if you require an order within a specific deadline and we will do our best to accommodate you.

• Select the "Purchase with Partial.ly" button to set up your layaway plan
• Layaway is available on all of the items we sell online.
• Typically layaway plans are four payments spread out over the course of four months. 0% fees, 0% interest and no credit checking. Just an easy way to pay off something you love!