0.65 Ct. Ruby from Thailand

This marquise ruby from The Natural Ruby Company is a rare and intimate treasure, a single gemstone that carries the kind of presence reserved for collectors and discerning couples, a jewel as private as a promise, and as bold as a lifetime commitment. We present a transparent 0.65 carat ruby, shaped into an elegant marquise with dimensions of 8.28 x 3.55 x 2.57 mm, masterfully faceted in a mixed brilliant cut that balances scintillation with depth. The color reads as a pinkish red with vivid intensity, a hue that catches the light and the eye without shouting for attention. Clarity is graded very slightly included, evaluated at eye level, which means this stone reads as clean to the wearer, while the natural inclusions remain a proof of origin and authenticity rather than a flaw. The polish is excellent, every facet meeting with precision to mirror the flame of any setting, and the stone has been responsibly heat treated, a common and stable enhancement that refines color and clarity without altering the soul of the ruby. Origin is Thailand, a source known for producing gems with strong color and character, and because pieces like this are seldom available, owning it means joining a select group who appreciate genuine rarity.

As an engagement gemstone this marquise ruby is a striking alternative to more common choices, it communicates passion with nuance, it suggests devotion with individuality, and it flatters the hand in a way that few other shapes can. The marquise silhouette elongates the finger and creates an elegant profile when set vertically, and when mounted east west it reads as modern and confident. At 0.65 carat this stone holds enough presence to command attention, while remaining wearable and versatile for daily life. The mixed brilliant cut brings a lively interplay of light from both the table and crown facets, so the vivid pinkish red color pulses as the hand moves. For an engagement ring this creates a center that is intimate, luminous, and unmistakably personal, a jewel that reflects a relationship that is both bright and deep. Because each ruby is unique, this marquise becomes a symbol rather than a commodity, a singular center for a bespoke ring that can be designed around your partner, your story, and your vision of forever.

We select and present gemstones with the eye of a connoisseur, and this Thai ruby embodies that careful curation. The heat treatment applied to this stone is disclosed and standard in the trade, it enhances the inherent color while remaining permanent and stable under normal wear, and it is part of our transparent approach at The Natural Ruby Company. The very slightly included clarity means that at eye level the gem delivers clarity that feels pure and unclouded, while microscopic features confirm its natural origin. The dimensions and proportions of 8.28 x 3.55 x 2.57 mm allow jewelers to set the stone in a variety of styles, from a delicate solitaire that celebrates the marquise outline, to a halo that amplifies the vivid tone, to twin shoulder stones that frame the center like a story told in gemstones. Because marquise points can be vulnerable in everyday wear, we recommend settings that protect those tips, such as secure prongs or a partial bezel, and we are happy to advise on designs that balance beauty with durability. For clients seeking exclusivity, this ruby is offered as a single piece, an opportunity to design an engagement ring that will not be replicated, a custom creation for an individual and an occasion that matter more than anything else.

When you choose this marquise ruby from The Natural Ruby Company you are choosing more than a gemstone, you are choosing a collaborative experience with a company that values provenance, craftsmanship, and discretion. Our team can assist with mounting options, metal choices, and design sketches that honor the stone and the sentiment behind it, we can arrange independent certification or an appraisal upon request, and we can guide care and insurance recommendations to keep this precious piece safe for generations. We view every engagement as both a personal milestone and an opportunity to create an heirloom, and this ruby is the kind of center stone that will be passed down as a story, a memory and a legacy. If you wish to explore settings that emphasize the marquise line, or prefer a halo to intensify color, or desire a minimalist band that allows the ruby to speak on its own, our bench and design team stand ready to translate your vision into a ring that is as exclusive as your bond. This single marquise ruby is available now for a limited number of commissions, and owning it means belonging to a select circle who value rarity, beauty and authenticity. Contact The Natural Ruby Company to begin a private consultation, and let us help you create an engagement ring that is as unique and enduring as the promise it represents.