Engagement ring and wedding band

Ladies diamond engagement ring, about size 5. I'm in Bismarck. Unique design: I designed it myself, and I'm not an expert but I've never seen another one like it! $3,500 OBO. Recent appraisal priced it at $4,200, not including the wedding band. See below for specs from the appraisal.

[Primary Diamond]

Type: Moissanite

Weight: Approx. 2.00ctw

Shape: Emerald Cut

Diameter: 8mm x 6mm

Color: DEF

Clarity: VS1

Girdle: Medium

Polish: Very Good

Symmetry: Very Good

[Secondary Items]

Type: Diamonds

Quantity: 2

Shape: Round

Weight: Approx. .42ctw

Average Clarity: SI1

Average Color: GH

[Metal]

Metal: Gold

Purity: 14KT

Color: Yellow

Finish: Polished