IGI Certified 1 Carat Marquise Lab Grown Blue Diamond Celtic Knot Engagement Ring

Product Description

Celebrate commitment with vivid color and meaningful detail in this 1 Carat Marquise Lab Grown Blue Diamond Knot Engagement Ring. The elongated Vivid Blue center diamond draws immediate attention, while Celtic-inspired knot motifs, vintage-looking engraving, and white lab grown diamond accents bring texture and contrast to the band. Designed for buyers seeking a distinctive blue diamond engagement ring, this IGI-certified design blends a marquise center with symbolic knot styling for proposals, anniversaries, milestone gifts, and personal celebrations.

1.09 Carat Marquise Lab Grown Blue Diamond Celtic Knot Engagement Ring

The center is an approximately 1.05 carat marquise lab grown blue diamond measuring about 5 x 10 mm. It has Vivid Blue color, VS1 clarity, brilliant cutting, a prong setting, and IGI certification. Two round brilliant lab grown diamonds add approximately 0.04 carat of E-F color and VS quality sparkle, bringing the combined diamond weight to about 1.09 carats. The confirmed design is crafted in 92.5 sterling silver and selected yellow or white gold options in 10K, 14K, and 18K with an approximate metal weight of 3.38 grams.

What Makes This Vintage Marquise Blue Diamond Ring Special

• Approximately 1.05 carat IGI-certified marquise lab grown blue diamond center.
• Center diamond measures approximately 5 x 10 mm.
• Vivid Blue color with VS1 clarity.
• Brilliant-cut marquise diamond secured in a prong setting.
• Celtic-inspired knot detailing beside the center stone.
• Vintage-looking engraved band design.
• Two round brilliant lab grown white diamond accents.
• Approximately 0.04 carat total accent diamond weight.
• E-F color and VS quality accent diamonds.
• Each round accent measures approximately 1.60 x 1.60 mm.
• Approximately 1.09 carats combined lab grown diamond weight.

The pointed marquise shape gives this lab grown blue diamond ring an elongated profile, while the knot shoulders frame the center without surrounding it like a halo. Small white diamonds add controlled sparkle and contrast against the blue center, making this marquise blue diamond engagement ring with Celtic knot band especially appealing to buyers who want color, decorative detailing, and a clearly defined center stone.

Meaning Behind the Celtic Knot Blue Diamond Engagement Ring

The interwoven knot design naturally suggests connection, continuity, and two lives becoming closely linked, giving the ring added relevance for engagement and commitment. Its vintage-inspired engraving adds visual depth, while the marquise blue diamond keeps the design distinctive and center-focused. For someone searching for a vintage Celtic knot engagement ring with blue diamond, the combination offers a meaningful alternative to a plain-band solitaire while remaining suitable for proposals, anniversaries, and lasting relationship milestones.

IGI Certified Lab Grown Blue Diamond Craftsmanship & Authenticity

The approximately 1.05 carat Vivid Blue VS1 marquise center diamond is accompanied by IGI certification. Rosec Jewels crafts this IGI certified blue diamond engagement ring with attention to center-stone alignment, secure prong settings, knot detailing, engraved finishing, and accent-diamond placement. Rosec Jewels also offers a Certificate of Authenticity with the jewelry. Each piece goes through stone inspection, setting security review, and finishing inspection before dispatch, with care guidance provided to support confident long-term ownership.

1 Carat Blue Diamond Knot Ring for Proposals & Bridal Wear

The approximately 5 x 10 mm marquise center creates noticeable length across the finger, while the decorative knot shoulders add character from the sides. This 1 carat marquise blue diamond engagement ring pairs naturally with understated diamond jewelry and suits proposals, anniversaries, milestone gifting, bridal occasions, and regular wear with appropriate care. The confirmed 92.5 sterling silver design is available in US sizes 3 through 13, including quarter-size increments, making it a distinctive choice for buyers seeking a vintage blue diamond engagement ring with knot detailing.