C. 1920 Vintage Marcus & Co. 4.00 ct. t.w. Sapphire and 3.55 ct. t.w. Diamond Bar Pin in Platinum

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.

REVOLVER: A safety that conceals the point of a pin and keeps it in place with a revolving lever mechanism.

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.

BRILLIANT & SINGLE: A mix of both brilliant-cut and single-cut gemstones. Brilliant-cut gemstones usually have 58 facets, while single-cut typically have 18 facets.

Color Grade H-I: Near-colorless

Clarity VS2: Very slightly included. Inclusions are observed with effort under 10x magnification, but can be characterized as minor.

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

BRILLIANT: A gemstone cut to enhance brilliance without sacrificing much carat weight. Typically has 58 facets.

SAPPHIRE: A favorite gemstone of ancient priests and royalty, the sapphire radiates sophistication and grace. This prized gem comes in every hue of blue, plus the more unexpected shades of pink, yellow, green and orange, and is September's birthstone.

SQUARE: A symmetrical shape with four equal sides.