2.50-Carat Oval-Shaped Lab Diamond Engagement Ring — Hidden Halo | 14kt Yellow Gold

2.50-Carat Oval Lab Diamond Engagement Ring | Hidden Halo | 14kt Yellow Gold

The oval engagement ring is the most flattering diamond shape on the finger — elongating, brilliant, and unmistakably elegant. This ring features a 2.50 carat lab-created oval diamond in a hidden halo setting crafted in 14kt yellow gold, delivering exceptional brilliance with a clean, timeless silhouette. The hidden halo adds secret sparkle without interrupting the oval’s natural elegance. SKU: AJENG-0025. $2,375.

Ring at a Glance

• Center Stone: Lab-Created Oval Diamond — 2.50ct
• Metal: 14kt Yellow Gold (585 purity)
• Setting: Hidden Halo
• Style: Oval Shaped Engagement Ring
• SKU: AJENG-0025
• Price: $2,375

Why the Oval Is the Most Flattering Engagement Ring Shape

The oval diamond engagement ring has dominated fine jewelry for good reason — its elongated silhouette creates a finger-lengthening effect that no other fancy shape replicates as naturally. Oval diamonds, sometimes called oblong engagement rings for their elongated form, spread their carat weight across a larger surface area than a round diamond of equivalent weight, meaning a 2.50 carat oval appears significantly larger face-up than a 2.50 carat round. The oval cut combines the brilliance of a round diamond with the elongated visual impact of a pear or marquise, without the pointed tips that can be fragile in daily wear. The result is a shape that is simultaneously bold, classic, and deeply flattering on every finger width and length.

Stone Details — Lab-Created Oval Diamond

This ring features a 2.50 carat lab-created oval diamond — chemically, physically, and optically identical to a mined diamond, grown in a controlled environment and graded by the same standards for cut, color, and clarity. Lab-created diamonds offer the same brilliance, fire, and hardness as mined stones at a fraction of the cost, making this ring an exceptional value at $2,375. The oval cut’s 56 to 58 facets produce a vivid, crushed-ice sparkle across the entire face of the stone, with strong light return from all angles. In 14kt yellow gold, the warm setting creates a striking contrast against the brilliant white of the diamond, making the stone appear even more vivid and pure.

The Hidden Halo — Brilliance That Reveals Itself

The hidden halo on this ring is set beneath the girdle of the oval center stone — completely invisible from the top, revealing a ring of brilliant accent diamonds only when viewed from the side or below. This design choice preserves the clean oval silhouette at first glance, while adding an extra dimension of sparkle that a solitaire cannot achieve. From above, this ring looks like a refined solitaire. From any other angle, the hidden halo catches light and sends it in every direction. It is the kind of design detail that the wearer discovers and rediscovers — and that others notice only when they look closer.

✦ Why Shop With Treasured & Co.

• ✔ Lab-created diamond — same quality as mined, exceptional value
• ✔ 2.50 carats — significant face-up size on the finger
• ✔ Hidden halo — brilliance that rewards a second look
• ✔ Sizes 5–9 available — contact us for custom sizing
• ✔ Free shipping on all orders
• ✔ Financing available through Affirm
• ✔ In-store viewing: 30-06 Steinway St, Astoria, NY 11103
• ✔ Call us: (718) 956-0001

What Is an Oval Diamond?

The oval diamond is a modified brilliant cut — an elongated variation of the round brilliant — developed to combine maximum light return with a flattering elongated shape. It typically features 56 to 58 facets and produces strong brilliance and fire comparable to a round diamond. The oval’s length-to-width ratio typically falls between 1.30 and 1.50, with longer ratios producing a more dramatically elongated look and shorter ratios appearing closer to a round. Oval diamonds are sometimes referred to as oblong engagement rings due to their elongated silhouette, and have been among the most requested engagement ring shapes for the past decade. Their growing popularity is driven by the combination of finger-lengthening effect, face-up size advantage over rounds, and exceptional versatility with all setting styles.

Specifications

Center Stone:

Lab-Grown Diamond

Cut:

Oval

Treatment:

Lab-Grown

Metal:

14Kt Yellow Gold

Style:

Hidden Halo

About This Ring

Lab-grown diamonds offer the same physical and optical properties as natural — same hardness, same fire, same brilliance — at a price point that makes a larger center stone accessible.

The hidden halo sits below the center stone — invisible from above, but adding fire and a subtle luxury detail when the ring catches light from the side.

What's Included

• A Treasured & Co. certificate of authenticity
• Hand-finished presentation box
• Free insured 2-day FedEx or USPS Priority shipping (US domestic)
• Complimentary first resizing within 60 days of delivery
• 30-day return window — full refund, no restocking fee
• Lifetime craftsmanship guarantee

Browse more unique engagement rings in our collection, or contact our specialist for sizing, viewing, or custom design questions.