{"product_id":"madduckjewels-18k-gold-ring-cz-moissanite-lab-grown-rg1530-y18","title":"MadDuckJewels 18K Yellow Gold (75%) Engagement \u0026 Wedding Ring – CZ \/ Moissanite \/ Lab-Grown Diamond – Nickel-Free – RG1530-Y18","description":"\u003cp\u003eDetail:  The charming ring setting center with 0.50 Carat diamond and 1 rows petite diamonds for each side.\u003c\/p\u003e\n\u003cp\u003eFOR: This model is suitable for lovers who are looking for engagement rings, wedding rings, present, pre-wedding photo shoot or other special occasions.\u003c\/p\u003e\n\u003cp\u003e⏳ \u003cstrong\u003eMade to Order (Pre-order)\u003c\/strong\u003e\u003cbr\u003eProduction takes 10 business days after purchase.\u003cbr\u003eOur team will message you within 24 hours to confirm your ring size — confirm early to join the earliest casting round.\u003c\/p\u003e\n\u003cp\u003eMaterials: Solid 18K Yellow Gold (75% gold) — the color is the gold itself, it never fades or peels. Nickel-Free.\u003cbr\u003eNote: 18K gold (75%) is slightly lighter in tone than Thai 96.5% ornament gold — the international standard for diamond and engagement rings worldwide.\u003c\/p\u003e\n\u003cp\u003e✨ \u003cstrong\u003eAny design, 4 gold options\u003c\/strong\u003e — every Madduck design can be made in 9K White Gold · 18K Yellow Gold · 18K Rose Gold · 9K Rose Gold. Message us for a quote in the gold you love.\u003c\/p\u003e\n\u003cp\u003eChoose from 3 stone options:\u003c\/p\u003e\n\u003cp\u003e◆ CZ (Cubic Zirconia)\u003cbr\u003e⭐ Best Value\u003cbr\u003eA popular synthetic stone, precision-cut for maximum sparkle at an accessible price.\u003c\/p\u003e\n\u003cp\u003e◆ Moissanite\u003cbr\u003e⭐ Most Popular\u003cbr\u003eExtraordinary brilliance and fire with near-diamond hardness; a premium lab-created gemstone.\u003c\/p\u003e\n\u003cp\u003e◆ Lab-Grown Diamond\u003cbr\u003e⭐ Premium Choice\u003cbr\u003eA real diamond grown in a lab, optically and chemically identical to a mined diamond, ethically sourced.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePRODUCT DETAILS\u003c\/strong\u003e\u003cbr\u003eCode: RG1530-Y18\u003cbr\u003eMetal: 18K Yellow Gold (75%)\u003cbr\u003eFinish: Unplated solid gold\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRing Size Conversion (US – Thai Gold Size)\u003c\/strong\u003e\u003c\/p\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eUS 3.0\u003c\/td\u003e\n\u003ctd\u003eGold Size 43.4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUS 3.5\u003c\/td\u003e\n\u003ctd\u003eGold Size 44.9\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUS 4.0\u003c\/td\u003e\n\u003ctd\u003eGold Size 46.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUS 4.5\u003c\/td\u003e\n\u003ctd\u003eGold Size 47.8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUS 5.0\u003c\/td\u003e\n\u003ctd\u003eGold Size 49.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUS 5.5\u003c\/td\u003e\n\u003ctd\u003eGold Size 50.3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUS 6.0\u003c\/td\u003e\n\u003ctd\u003eGold Size 51.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUS 6.5\u003c\/td\u003e\n\u003ctd\u003eGold Size 52.8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUS 7.0\u003c\/td\u003e\n\u003ctd\u003eGold Size 54.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUS 7.5\u003c\/td\u003e\n\u003ctd\u003eGold Size 55.3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUS 8.0\u003c\/td\u003e\n\u003ctd\u003eGold Size 56.6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUS 8.5\u003c\/td\u003e\n\u003ctd\u003eGold Size 57.8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUS 9.0\u003c\/td\u003e\n\u003ctd\u003eGold Size 59.1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUS 9.5\u003c\/td\u003e\n\u003ctd\u003eGold Size 60.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUS 10.0\u003c\/td\u003e\n\u003ctd\u003eGold Size 62.2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUS 10.5\u003c\/td\u003e\n\u003ctd\u003eGold Size 63.1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUS 11.0\u003c\/td\u003e\n\u003ctd\u003eGold Size 64.3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUS 11.5\u003c\/td\u003e\n\u003ctd\u003eGold Size 65.7\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUS 12.0\u003c\/td\u003e\n\u003ctd\u003eGold Size 66.9\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUS 12.5\u003c\/td\u003e\n\u003ctd\u003eGold Size 68.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUS 13.0\u003c\/td\u003e\n\u003ctd\u003eGold Size 70.1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cstrong\u003eHow to find your size (most to least accurate):\u003c\/strong\u003e\u003cbr\u003e1. Get measured at a jewelry store\u003cbr\u003e2. Measure the inner diameter of a ring you already own\u003cbr\u003e3. Measure the circumference of your finger\u003cbr\u003e** MADDUCKJEWELS uses the same standard sizing as gold \u0026amp; jewelry shops.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWarranty (Solid 18K Gold):\u003c\/strong\u003e\u003cbr\u003e- Every ring is hallmarked inside the band with our duck logo — CZ = 18K · Moissanite = 18K M · Lab-Grown Diamond = 18K L — verify your stone type for life\u003cbr\u003e- The warranty card states the gold karat, stone type, and your ring's actual weighed total weight (Lab-Grown Diamond rings include total carat weight, ctw)\u003cbr\u003e- Lifetime stone-setting warranty — loose stones re-tightened free · if a stone is lost, setting labor is free and you pay only the stone cost\u003cbr\u003e- Free re-polishing — once\u003cbr\u003e- Free ring cleaning, anytime\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRing Resizing (Solid 18K Gold):\u003c\/strong\u003e\u003cbr\u003e💍 Doesn't fit? One free resize (labor \u0026amp; re-polishing) — notify us and send the ring back within 7 days of delivery.\u003cbr\u003e- Sizing up: added gold is charged at cost (added weight × 18K gold price on the day)\u003cbr\u003e- Sizing down: free of charge, no refund for the gold weight difference\u003cbr\u003e- Takes 3–5 business days \/ return shipping 55 THB\u003cbr\u003e- After 7 days, or subsequent resizes: 250 THB labor + 350 THB polishing (+ 18K gold cost when sizing up)\u003cbr\u003e- Engraved rings: re-engraving the original text is free\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e💎 Madduck Upgrade Program — Real Gold, Trade In Anytime\u003c\/strong\u003e\u003cbr\u003eTurn your old gold ring into credit 💰\u003cbr\u003eTrade in your original Madduck ring for instant credit toward a new one.\u003cbr\u003e🥇 Setting value = total ring weight × gold buy-back price on trade-in day\u003cbr\u003e• 9K gold → × 30%\u003cbr\u003e• 14K gold → × 50%\u003cbr\u003e• 18K gold → × 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