This Square Old Mine Cushion Lab Diamond Halo Engagement Ring is made for those who appreciate heritage design, dimensional sparkle, and timeless romance. At its center is a square Old Mine cushion cut lab grown diamond, also referred to as an antique cushion diamond, vintage cushion cut, old European era cushion, or soft square Old Mine cut stone. It measures approximately 9.00 × 8.20 × 5.50 mm and weighs an estimated 3.00 CT. The center ethical diamond has a high crown, chunky facets, and an open culet, which creates the unique candlelight glow and romantic depth that Old Mine cut diamonds are known for. With EF color and VS clarity, this lab-created diamond offers balanced brilliance, subtle fire, and a refined vintage sparkle instead of a sharp modern flash.

Around the center stone is a carefully crafted round brilliant cut diamond halo, set in a micro pave prong setting to improve finger coverage, perceived size, and light performance. The design gets an upgrade from step cut trapezoid lab grown diamond side stones totaling 0.50 TCW, which add strong geometric symmetry and Art Deco influence to the shape. Fine round cut accent diamonds (0.15 TCW) finish the halo and shoulders, creating a seamless glow from every angle. This blend of Old Mine cushion, trapezoid side diamonds, and round brilliant halo stones defines the ring as a vintage halo engagement ring, antique inspired diamond cluster ring, heirloom cushion halo ring, and luxury Art Deco engagement ring.

The ring features a polished 1.70 mm band width and depth for a comfortable fit and everyday durability. It is available in 925 sterling silver, 10K, 14K, or 18K solid gold, and 950 platinum, with options for white gold, yellow gold, or rose gold tones. Customization options include ring size, metal purity, diamond proportions, halo spacing, band profile, and engraving. Made with ethical lab grown diamonds and accompanied by an Ouros Brand Authentic Jewelry Certificate, this Old Mine cushion halo engagement ring is perfect for engagements, proposals, anniversaries, Valentine’s Day gifts, bridal jewelry, and milestone celebrations. It is a statement piece that honors vintage beauty with modern craftsmanship and sustainable luxury.

Key Features:

Center Diamond: Featured a 3.00 CT Square Old Mine Cushion Cut lab grown diamond, also known as antique cushion or vintage soft square cut. It has a high crown and an open culet glow.
Diamond Quality: Used EF color, VS clarity lab created diamonds. These diamonds provide ethical, sustainable, and conflict free luxury with vintage brilliance.
Halo Style: Designed with a round brilliant cut micro pave halo. This design enhances finger coverage, sparkle, and the classic appeal of a cushion halo engagement ring.
Side Stone Design: Accented with step cut trapezoid diamonds and round cut diamonds. This creates an Art Deco cluster halo with an heirloom profile.
Band Style: Finished with a 1.70 mm polished comfort fit band. This band delivers balance, durability, and a refined cathedral inspired silhouette.
Royal Inspiration: Reflected a Princess Diana inspired vintage engagement ring style. It blends royal style with antique charm.
Customization & Trust: Offered full customization, including metal, size, engraving, and halo layout. It was backed by Ouros Brand (IGI) certification and expert service.