C. 1990 Vintage Black Onyx and 1.91 ct. t.w. Diamond Ring in Platinum. Size 7.75

PLATINUM: A rare precious metal cherished for its longevity and strength. Platinum is naturally white, durable, dense, and resilient to discoloration. Most platinum in jewelry is at least 95% pure since it does not require alloys or plating.

TEXTURED: A unique and varying finish with a tactile surface applied through various techniques, both by hand and with machinery.

Diamond: The hardest and most brilliant of all gemstones, a diamond can make the heart race with its pure and fiery spark. An ancient symbol of love, a diamond is the preferred gemstone for tokens of affection, such as rings, earrings, necklaces and bracelets. Diamond is the birthstone for April.

MARQUISE: An elliptical shape that comes to a point at the top and bottom. Sometimes referred to as a "navette."

CLARITY SI1: Slightly Included. Inclusions are noticeable under 10x magnification.

OLD EUROPEAN CUT: An old-fashioned gemstone cut dating back to the 1800s. With a round shape and 58 facets, it is considered the precursor to the modern brilliant-cut. However, it has a greater depth and smaller table than the brilliant-cut of today.

Color Grade H-I: Near-colorless

CLARITY SI1-SI2: Slightly Included. Inclusions are noticeable under 10x magnification.

ONYX: A favorite of the ancient Greeks and Romans, this gemstone adds a sophisticated shine to rings, necklaces, bracelets and earrings. A dyed form of chalcedony, onyx is most popularly found in black although it can be green, white or red, as well.