{"product_id":"round-4-prong-double-gallery-earring-mountings-positive-lock-14k-18k-platinum-4-8mm","title":"14K, 18K \u0026 Platinum Round 4 Prong Double Gallery Positive Locking Guardian Post \u0026 Back Sets","description":"\u003cp\u003eClassic round 4-prong double-gallery earring mountings with Positive Locking Guardian posts and nuts for securely setting round faceted gemstones. A clean, balanced profile lets the stone take center stage. Available in 14K yellow, 14K white, 18K yellow, 18K white, and platinum across a broad stone-size range, these mountings are well-suited for professional jewelry mounting and repair work.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e4-prong double-gallery construction designed for round faceted stones\u003c\/li\u003e\n\u003cli\u003ePositive Locking Guardian posts and nuts for added wearing security\u003c\/li\u003e\n\u003cli\u003eAvailable in 14K yellow, 14K white, 18K yellow, 18K white, and platinum\u003c\/li\u003e\n\u003cli\u003eCovers a stone-size range of 4.0–8.0 mm (.25–2.0 ct) for matched design flexibility\u003c\/li\u003e\n\u003cli\u003eManufactured in the USA\u003c\/li\u003e\n\u003cli\u003eSuitable for professional jewelry mounting and repair work\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eStone Shape\u003c\/th\u003e\n\u003ctd\u003eRound\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eStone Type\u003c\/th\u003e\n\u003ctd\u003eRound faceted gemstone\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSetting Style\u003c\/th\u003e\n\u003ctd\u003e4-prong double-gallery earring mounting\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eStone Size Range\u003c\/th\u003e\n\u003ctd\u003e4.0–8.0 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eApprox. Diamond Size Range\u003c\/th\u003e\n\u003ctd\u003e.25–2.0 ct per single round stone\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePost \u0026amp; Back Type\u003c\/th\u003e\n\u003ctd\u003ePositive Locking Guardian post and nut\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSold By\u003c\/th\u003e\n\u003ctd\u003ePiece\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eManufactured In\u003c\/th\u003e\n\u003ctd\u003eUSA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch3\u003eAvailable Options\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003ePart #\u003c\/th\u003e\n\u003cth\u003eMetal Type\u003c\/th\u003e\n\u003cth\u003eStone Size\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e200-334\u003c\/td\u003e\n\u003ctd\u003e14K Yellow\u003c\/td\u003e\n\u003ctd\u003e4.0 mm (.25 ct)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e200-336\u003c\/td\u003e\n\u003ctd\u003e14K Yellow\u003c\/td\u003e\n\u003ctd\u003e5.0 mm (.50 ct)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e200-338\u003c\/td\u003e\n\u003ctd\u003e14K Yellow\u003c\/td\u003e\n\u003ctd\u003e6.0 mm (.75 ct)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e200-339\u003c\/td\u003e\n\u003ctd\u003e14K Yellow\u003c\/td\u003e\n\u003ctd\u003e6.5 mm (1.0 ct)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e200-340\u003c\/td\u003e\n\u003ctd\u003e14K Yellow\u003c\/td\u003e\n\u003ctd\u003e7.0 mm (1.25 ct)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e200-341\u003c\/td\u003e\n\u003ctd\u003e14K Yellow\u003c\/td\u003e\n\u003ctd\u003e7.5 mm (1.50 ct)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e200-342\u003c\/td\u003e\n\u003ctd\u003e14K Yellow\u003c\/td\u003e\n\u003ctd\u003e8.0 mm (2.0 ct)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e201-334\u003c\/td\u003e\n\u003ctd\u003e14K White\u003c\/td\u003e\n\u003ctd\u003e4.0 mm (.25 ct)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e201-336\u003c\/td\u003e\n\u003ctd\u003e14K White\u003c\/td\u003e\n\u003ctd\u003e5.0 mm (.50 ct)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e201-338\u003c\/td\u003e\n\u003ctd\u003e14K White\u003c\/td\u003e\n\u003ctd\u003e6.0 mm (.75 ct)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e201-339\u003c\/td\u003e\n\u003ctd\u003e14K White\u003c\/td\u003e\n\u003ctd\u003e6.5 mm (1.0 ct)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e201-340\u003c\/td\u003e\n\u003ctd\u003e14K White\u003c\/td\u003e\n\u003ctd\u003e7.0 mm (1.25 ct)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e201-341\u003c\/td\u003e\n\u003ctd\u003e14K White\u003c\/td\u003e\n\u003ctd\u003e7.5 mm (1.50 ct)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e201-342\u003c\/td\u003e\n\u003ctd\u003e14K White\u003c\/td\u003e\n\u003ctd\u003e8.0 mm (2.0 ct)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e20B-334\u003c\/td\u003e\n\u003ctd\u003ePlatinum\u003c\/td\u003e\n\u003ctd\u003e4.0 mm (.25 ct)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e20B-336\u003c\/td\u003e\n\u003ctd\u003ePlatinum\u003c\/td\u003e\n\u003ctd\u003e5.0 mm (.50 ct)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e20B-338\u003c\/td\u003e\n\u003ctd\u003ePlatinum\u003c\/td\u003e\n\u003ctd\u003e6.0 mm (.75 ct)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e20B-339\u003c\/td\u003e\n\u003ctd\u003ePlatinum\u003c\/td\u003e\n\u003ctd\u003e6.5 mm (1.0 ct)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e20B-340\u003c\/td\u003e\n\u003ctd\u003ePlatinum\u003c\/td\u003e\n\u003ctd\u003e7.0 mm (1.25 ct)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e20B-341\u003c\/td\u003e\n\u003ctd\u003ePlatinum\u003c\/td\u003e\n\u003ctd\u003e7.5 mm (1.50 ct)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e20B-342\u003c\/td\u003e\n\u003ctd\u003ePlatinum\u003c\/td\u003e\n\u003ctd\u003e8.0 mm (2.0 ct)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e20C-334\u003c\/td\u003e\n\u003ctd\u003e18K Yellow\u003c\/td\u003e\n\u003ctd\u003e4.0 mm (.25 ct)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e20C-336\u003c\/td\u003e\n\u003ctd\u003e18K Yellow\u003c\/td\u003e\n\u003ctd\u003e5.0 mm (.50 ct)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e20C-338\u003c\/td\u003e\n\u003ctd\u003e18K Yellow\u003c\/td\u003e\n\u003ctd\u003e6.0 mm (.75 ct)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e20C-339\u003c\/td\u003e\n\u003ctd\u003e18K Yellow\u003c\/td\u003e\n\u003ctd\u003e6.5 mm (1.0 ct)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e20C-340\u003c\/td\u003e\n\u003ctd\u003e18K Yellow\u003c\/td\u003e\n\u003ctd\u003e7.0 mm (1.25 ct)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e20C-341\u003c\/td\u003e\n\u003ctd\u003e18K Yellow\u003c\/td\u003e\n\u003ctd\u003e7.5 mm (1.50 ct)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e20C-342\u003c\/td\u003e\n\u003ctd\u003e18K Yellow\u003c\/td\u003e\n\u003ctd\u003e8.0 mm (2.0 ct)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e20D-334\u003c\/td\u003e\n\u003ctd\u003e18K White\u003c\/td\u003e\n\u003ctd\u003e4.0 mm (.25 ct)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e20D-336\u003c\/td\u003e\n\u003ctd\u003e18K White\u003c\/td\u003e\n\u003ctd\u003e5.0 mm (.50 ct)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e20D-338\u003c\/td\u003e\n\u003ctd\u003e18K White\u003c\/td\u003e\n\u003ctd\u003e6.0 mm (.75 ct)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e20D-339\u003c\/td\u003e\n\u003ctd\u003e18K White\u003c\/td\u003e\n\u003ctd\u003e6.5 mm (1.0 ct)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e20D-340\u003c\/td\u003e\n\u003ctd\u003e18K White\u003c\/td\u003e\n\u003ctd\u003e7.0 mm (1.25 ct)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e20D-341\u003c\/td\u003e\n\u003ctd\u003e18K White\u003c\/td\u003e\n\u003ctd\u003e7.5 mm (1.50 ct)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e20D-342\u003c\/td\u003e\n\u003ctd\u003e18K White\u003c\/td\u003e\n\u003ctd\u003e8.0 mm (2.0 ct)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e20E-334\u003c\/td\u003e\n\u003ctd\u003e18K White\u003c\/td\u003e\n\u003ctd\u003e4.0 mm (.25 ct)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e20E-336\u003c\/td\u003e\n\u003ctd\u003e18K White\u003c\/td\u003e\n\u003ctd\u003e5.0 mm (.50 ct)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e20E-338\u003c\/td\u003e\n\u003ctd\u003e18K White\u003c\/td\u003e\n\u003ctd\u003e6.0 mm (.75 ct)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e20E-339\u003c\/td\u003e\n\u003ctd\u003e18K White\u003c\/td\u003e\n\u003ctd\u003e6.5 mm (1.0 ct)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e20E-340\u003c\/td\u003e\n\u003ctd\u003e18K White\u003c\/td\u003e\n\u003ctd\u003e7.0 mm (1.25 ct)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e20E-341\u003c\/td\u003e\n\u003ctd\u003e18K White\u003c\/td\u003e\n\u003ctd\u003e7.5 mm (1.50 ct)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e20E-342\u003c\/td\u003e\n\u003ctd\u003e18K White\u003c\/td\u003e\n\u003ctd\u003e8.0 mm (2.0 ct)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch3\u003eNotes\u003c\/h3\u003e\n\u003cp\u003eSold by the piece. Order 2 pieces for a pair. The carat weight shown is the approximate diamond equivalent for one round stone; the mm size indicates the stone diameter the mounting is designed to fit.\u003c\/p\u003e","brand":"Otto Frei","offers":[{"title":"14K Yellow \/ 4.0mm (.25ct)","offer_id":47551374786774,"sku":"200-334","price":96.05,"currency_code":"USD","in_stock":true},{"title":"18K Yellow \/ 6.0mm (.75ct)","offer_id":47807230607574,"sku":"20C-338","price":201.2,"currency_code":"USD","in_stock":false},{"title":"Platinum \/ 6.0mm (.75ct)","offer_id":47807230640342,"sku":"20B-338","price":259.77,"currency_code":"USD","in_stock":true},{"title":"14K Yellow \/ 5.0mm (.50ct)","offer_id":47807230673110,"sku":"200-336","price":124.49,"currency_code":"USD","in_stock":true},{"title":"14K Yellow \/ 6.0mm (.75ct)","offer_id":47807230705878,"sku":"200-338","price":138.49,"currency_code":"USD","in_stock":true},{"title":"14K Yellow \/ 6.5mm 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