The Alx&Co. Boutique

Our online boutique features our vintage and antique engagement-style rings. All of these rings are also available for viewing and purchase at our Old Town, Alexandria showroom.

Because our larger jewelry inventory changes nearly daily, we do not maintain an updated online gallery of the rest of our jewelry. To see our complete collection of fine jewelry - including our amazing antique and contemporary necklaces, bracelets, earrings, and rings - please visit our showroom in Old Town, Alexandria.

If you are interested in a custom design, please email us at and we’ll get you started.

Alx&Co. Designed Marquis Diamond Ring (Sold Out)

Alx&Co. Designed Marquis Diamond Ring (Sold Out)


Contemporary Alx&Co. designed platinum ring featuring a marquis diamond set in a prong-style head.

Feature diamond is 1.63ct, clarity grade SI1; color grade I. The feature diamond is set in a discreet four-prong setting and is slightly raised from the shoulders.

The shoulders display a diamond leaf motif with an open windowpane accent. Delicate milgrain detailing runs down the shank, accented by hand engraved details across the entirety of the band.

Can be resized larger or smaller. Resizing is complementary with purchase, please include your ring size in your order details.

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All measurements and grades are professionally approximated and conducted without removing the gems from the setting.