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Padlock Couple Rings – Heart Lock Matching Set
Padlock Couple Rings – His & Hers Heart Lock Matching Band Set (3D CAD Jewelry File)
*** All Files Types Include
This listing features a romantic matching jewelry set designed for couples: a men's signet-style padlock ring paired with a women's slender band accented by a dangling heart-shaped padlock charm. The men's ring showcases a bold, faceted signet silhouette with a dimensional padlock motif set into the face, its shackle rendered in high relief for a masculine, sculptural look. The padlock's body is accented with a small pavé heart made up of three round stones nestled among decorative bead detailing, echoing traditional lock hardware. The women's counterpart is a delicate band featuring a heart-shaped bail that holds a fully articulated, dangling padlock pendant — also set with the same three-stone pavé heart — allowing it to swing freely for natural movement and light play. Together, the pieces symbolize commitment and connection, making the set well suited for engagement gifts, anniversary rings, promise rings, or custom couple's jewelry lines. The design has been rendered in multiple finishes including yellow gold, white gold, rose gold, and a dark titanium/black rhodium finish, demonstrating its versatility across metal types and market segments.
The 3D model was constructed using professional jewelry CAD software with precise, manufacture-ready geometry. Full dimensional call-outs are included and verified: the men's ring head measures 9.00mm wide by 12.00mm long with a 4.00mm shank width, while the women's padlock charm measures 5.50mm wide with a 2.50mm band width and a total hanging depth of 10.50mm. The padlock shackle, body taper, and heart bail have all been individually dimensioned (ranging from 2.00mm to 5.00mm across key features) to ensure accuracy at production scale. Gemstone placement was set using a round diamond-melee layout, with a gem reporter analysis confirming 6 round stones at 1.20 x 1.20mm each, totaling 0.039 total carat weight per padlock heart motif. Metal weight simulations are included across a full range of alloys — 9K, 10K, 14K, and 18K white gold, sterling silver, silver continuum, and 10K rose gold — with gram, DWT, and specific gravity values calculated for each, giving buyers immediate cost-estimation data before casting.
This file is fully prepared for real-world jewelry manufacturing. It is compatible with casting workflows including lost-wax casting and direct metal 3D printing, and is suitable for production in gold, platinum, silver, and titanium alloys. The clean, watertight mesh and solid geometry make it appropriate for resin 3D printing (SLA/DLP) for wax or master pattern creation, as well as direct CNC or additive manufacturing paths. The included stone settings are pre-modeled to standard gemstone tolerances, allowing setters to seat melee diamonds or cubic zirconia accurately without rework. The file structure separates ring shanks, padlock heads, and gem cavities into clean, moveable components, supporting easy resizing, finish changes, and metal-type substitution for production runs.
Buyers on 3D marketplaces will receive native and universal file formats suitable for a wide range of software and hardware pipelines, including 3DM, OBJ, STL, and other standard exchange formats, making the design accessible to jewelers, CAD designers, 3D printing services, and manufacturing houses alike. This set is ideal for jewelry brands seeking ready-to-produce couple's ring designs, for print-on-demand jewelry services, or for designers wanting a customizable base file to adapt into personalized collections. With its scalable dimensions, verified gem and metal data, and multi-metal finish options already demonstrated, this file offers strong commercial value for both small-batch custom orders and larger production runs, and is well suited for online jewelry stores, Etsy-style personalization shops, and B2B manufacturing catalogs.
