This appears to be traditional Ethiopian (Habesha) geometric art, strongly inspired by Ethiopian cross and interlaced knot motifs. Here’s a clear description:

Ethiopian/Eritrean traditional decorative art, commonly seen in manuscripts, church paintings, textiles, and borders.

Design Structure:

• A square frame made of intricate interwoven knot patterns, symbolizing eternity and unity.

• Repeating diamond and leaf-like shapes along the border, adding rhythm and balance.

• A central rosette/star motif, surrounded by symmetrical cross forms.

• Smaller cross-like motifs placed evenly inside the frame.

Color Symbolism:

• Red & Yellow: sacrifice, faith, divinity, and life

• Green: renewal and hope

• Black outlines: strength and definition
  These colors are traditionally significant in Ethiopian spiritual and cultural art.