18K yellow gold diamond ring with a romantic heart and knot-style design, hallmarked 750 and set with 10 small diamonds with a stated total diamond weight of 0.08 ct. The ring has a total weight of 1.87 g and an inner diameter of 16.1 mm. Based on the inner diameter, the approximate inner circumference is 50.58 mm, calculated as 16.1 × π = 50.58 mm. This corresponds approximately to EU ring size 51, depending on exact fit, ring width, and sizing standard. The design is the main visual feature of the ring. The front is shaped as an open heart motif combined with an interlaced knot or infinity-style form, giving the ring a symbolic and decorative character. The yellow gold band flows into a split-shoulder structure that frames the heart-shaped centerpiece, while the white metal diamond-set sections create contrast against the warm yellow gold. The result is a delicate but expressive two-tone ring with a romantic appearance, suitable as a love ring, promise ring, anniversary ring, gift ring, heart ring, or symbolic diamond ring. The 10 diamonds are set as small accent stones across the white metal sections of the heart and knot design. With a stated total diamond weight of 0.08 ct, the diamonds provide subtle sparkle rather than a dominant diamond appearance. This makes the ring suitable for buyers who prefer refined decorative brilliance, classic gold jewelry, and wearable diamond accents. The small diamonds add texture, light reflection, and contrast to the curved heart motif, enhancing the ring’s decorative front while keeping the piece elegant and practical for regular wear. The 750 hallmark indicates 18K gold, adding important search value for buyers specifically looking for 18K yellow gold rings, hallmarked gold rings, 750 gold jewelry, and genuine gold diamond rings. The combination of yellow gold, white metal detail, diamond accents, and a heart-shaped knot design gives the piece strong appeal for collectors of vintage-style jewelry, romantic jewelry, symbolic rings, estate jewelry, and fine gold rings with diamonds. The ring’s 1.87 g total weight gives it a light and comfortable profile, while the 16.1 mm inner diameter makes it a smaller ring size. The split-shoulder construction and openwork heart design help the ring feel visually detailed without being heavy. This makes the piece suitable for everyday wear, gifting, collector inventory, resale, or buyers looking for a delicate 18K gold diamond ring with a distinctive design. A hallmarked 18K yellow gold heart and knot diamond ring set with 10 diamonds with a stated total diamond weight of 0.08 ct, total weight 1.87 g, inner diameter 16.1 mm, and approximate inner circumference 50.58 mm. A suitable piece for fine jewelry collectors, vintage jewelry buyers, gold ring collectors, diamond jewelry buyers, and anyone seeking a romantic gold ring with a heart-shaped diamond accent design. Strong SEO keyphrases for this item include 18K gold diamond ring, 750 gold diamond ring, yellow gold heart ring, heart diamond ring, knot ring, infinity heart ring, romantic gold ring, love knot ring, diamond heart ring, 10 diamond ring, 0.08 ct diamond ring, gold ring with diamonds, two tone diamond ring, yellow gold and white gold ring, vintage heart ring, estate diamond ring, hallmarked gold ring, 750 hallmarked ring, delicate diamond ring, small diamond accent ring, promise ring, anniversary ring, romantic jewelry, fine gold jewelry, women’s diamond ring, ring with 16.1 mm diameter, 50.58 mm ring circumference, EU size 51 ring, and collectible 18K gold diamond jewelry.