Vintage Marquise Diamond Engagement Ring — 0.50ct Center, Princess-Cut Accents | 14kt Yellow Gold

Vintage Marquise Diamond Engagement Ring | Three-Stone Design | 14kt Yellow Gold

A beautifully crafted vintage marquise diamond engagement ring featuring a 0.50 carat marquise-cut center diamond flanked by princess-cut diamond accents — 0.86 carats total weight — in G-H color and SI1-SI2 clarity. Set in 14kt yellow gold, this three-stone vintage design captures the romance and architectural elegance of classic fine jewelry. SKU: AJDR-0021. $2,379.

Ring at a Glance

• Center Stone: Marquise Diamond — 0.50ct
• Accent Stones: Princess-Cut Diamonds — 0.36ct
• Total Carat Weight: 0.86tcw
• Diamond Color: G-H
• Diamond Clarity: SI1-SI2
• Metal: 14kt Yellow Gold (585 purity)
• Style: Vintage Three-Stone Engagement Ring
• SKU: AJDR-0021
• Price: $2,379

The Vintage Marquise Design — Why This Ring Works

The marquise cut was born in the court of Versailles and has carried its aristocratic character ever since — pointed, elongating, and unmistakably distinctive. In a vintage setting, the marquise diamond finds its natural home: surrounded by the architectural details, yellow gold warmth, and careful craftsmanship that define classic fine jewelry design. This ring pairs a 0.50 carat marquise center with princess-cut diamond accents on each side, creating a true three-stone composition that adds width, symmetry, and additional brilliance to the primary stone. The contrast between the marquise’s curved sides and pointed ends and the geometric precision of the princess-cut squares creates a visual tension that is distinctly vintage in character — formal, intentional, and built to last.

Stone Details — G-H Color, SI1-SI2 Clarity

G-H color sits in the near-colorless range — the sweet spot for buyers who want a diamond that faces up white without paying premium pricing for a colorless grade. In 14kt yellow gold, G-H color diamonds appear especially bright: the warm gold setting absorbs any trace warmth in the stone, making it read as purely white from above. SI1-SI2 clarity means inclusions are visible under 10x magnification but not to the naked eye — the stone appears clean in all normal viewing conditions. The combination of G-H color and SI1-SI2 clarity represents the most popular quality range in fine diamond jewelry, offering excellent visual performance at a price that reflects genuine value rather than grading premiums. At 0.86 carats total weight, the marquise center’s elongated silhouette reads significantly larger than a round diamond of equivalent weight.

Three Stones, One Story

The three-stone engagement ring has carried symbolic meaning for generations — past, present, and future represented in three diamonds set side by side. This ring executes that tradition with the kind of compositional intelligence that vintage design demands: the marquise center provides drama and elongation, while the flanking princess-cut diamonds frame the center stone symmetrically without competing with it. The result is a ring where each element reinforces the others, and the overall silhouette — wide, low-profile, and richly detailed — is immediately identifiable as a piece with heritage and character. For buyers who want a vintage marquise diamond engagement ring that tells a story, this is that ring.

✦ Why Shop With Treasured & Co.

• ✔ Natural diamonds — G-H color, SI1-SI2 clarity
• ✔ Marquise center + princess-cut accents — true three-stone design
• ✔ Vintage style — timeless fine jewelry character
• ✔ 14kt yellow gold — 585 purity
• ✔ Sizes available — contact us for sizing
• ✔ Free shipping on all orders
• ✔ Financing from $149/mo through Affirm
• ✔ In-store viewing: 30-06 Steinway St, Astoria, NY 11103
• ✔ Call us: (718) 956-0001

What Is a Vintage Marquise Engagement Ring?

A vintage marquise engagement ring combines the marquise diamond cut — a pointed, elongated brilliant cut developed in 18th-century France — with design elements drawn from earlier eras of fine jewelry: yellow gold settings, architectural stone arrangements, and craftsmanship that prioritizes visual richness over minimalist simplicity. The marquise cut’s narrow, pointed profile gives it exceptional finger-lengthening qualities, making it one of the most flattering fancy shapes for engagement rings. In a vintage-style three-stone setting like this one, the marquise center diamond is elevated and framed by companion stones that honor the design traditions of Art Deco and Edwardian jewelry without reproducing them literally. The result is a ring that feels at home in any era and wears beautifully every day.

Specifications

Center Stone:

Natural Diamond

Carat Weight (Center):

0.50 ct

Total Carat Weight:

0.86 tcw

Cut:

Marquise

Color:

G-H

Clarity:

SI1-SI2

Treatment:

Natural

Side Stones:

Princess-Cut Accents

Metal:

14Kt Yellow Gold

Style:

Vintage

About This Ring

Each center stone is inspected by our in-house gemologist for color, clarity, and cut precision before the ring is finished and listed. Setting work and final polish are completed in our Astoria, NY atelier.

Vintage-style settings draw on craftsmanship traditions that pre-date mass production — milgrain, filigree, and hand-set details you don't see on factory-made rings.

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.