{"title":"Lab-Grown Round Diamond Engagement Rings","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eExplore our collection of lab-grown round diamond engagement rings from Not Mined, handcrafted in 18ct hallmarked gold and made to order in the UK. The round brilliant cut is the most popular diamond shape in the world — loved for its unmatched sparkle and timeless symmetry. Every ring in this collection features an Ideal cut, D colour, VVS+ clarity lab-grown diamond, individually handpicked by our founder and accompanied by an IGI or GIA certificate.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eThe round brilliant is the benchmark against which all other diamond shapes are measured. Its 57 or 58 precisely angled facets are engineered to return the maximum amount of light to the eye, delivering a level of fire, brilliance and scintillation that no other shape can match. It is the most versatile cut — equally at home in classic and contemporary settings — and the most forgiving, hiding inclusions and colour more effectively than any other shape at the same grade.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eA round diamond works beautifully across every setting style. Whether you are drawn to a classic solitaire for its clean simplicity, a halo setting for extra brilliance, or a three stone design that adds meaning and presence, the round cut brings each one to life. You will also find bezel set and vintage-inspired designs for those who want something with a quieter confidence.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eYour experience with Not Mined is as considered as the ring itself. Our founder personally handpicks a selection of diamonds for you to choose from, so every stone is judged on its real-world sparkle and quality — not just a certificate. If you want to go further, you can bespoke design your ring from scratch through a relaxed, non-pushy consultation where we guide you to the right choice without the pressure. From purchase to delivery we keep you updated at every stage — confirmation your diamond has been secured, CAD designs shared during crafting if needed, hallmarking updates, and dispatch notification. We target three to four weeks from order to your door.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eChoosing a round diamond engagement ring from Not Mined means choosing the world's most brilliant shape backed by the highest standards. 18ct hallmarked gold, top-grade certified diamonds, fully traceable origins, and pricing that lets you invest in quality and craftsmanship rather than an inflated industry markup.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eFind your perfect round diamond engagement ring below, or book a free consultation if you would like personal guidance from our team.\u003c\/p\u003e","products":[{"product_id":"round-solitaire-4-prong","title":"Classic Round Cut Solitaire","description":"\u003cp\u003e\u003cstrong\u003eRound Solitaire 4-Prong\u003c\/strong\u003e — The definitive engagement ring — a hand-picked, certified lab grown round brilliant diamond in a clean four-prong setting. Nothing more, nothing less.\u003c\/p\u003e\u003cp\u003eThe round brilliant cut has 57 facets engineered for maximum light performance, making it the most sparkly diamond shape available. The four-prong setting exposes more of the stone to light, amplifying its fire and brilliance while keeping the design minimal and timeless.\u003c\/p\u003e\u003cp\u003eEvery centre diamond is hand-picked to our exacting standard: Ideal cut, D colour and VVS clarity or higher — selected not just for certification, but for maximum sparkle and fire with the optimum dimensions. The round brilliant is the benchmark against which all other diamond cuts are measured. Each is selected to our D colour, VVS clarity standard with particular attention to cut quality — because in a round brilliant, the precision of the cut is the single biggest factor in sparkle.\u003c\/p\u003e\u003cp\u003eQuality and collaboration are at the heart of everything we do. We only use 18k gold for its superior durability and richness of colour — available in yellow gold, white gold or rose gold. Platinum is available on request through our bespoke service. We are happy to hand-pick the perfect diamond for you, or if you prefer more involvement, let us know in advance and we will share a curated selection for you to choose from. For those who want complete control, our bespoke service lets you create your engagement ring from start to finish.\u003c\/p\u003e\u003cp\u003eFor the most iconic engagement ring silhouette — hand-picked to our standard, or create a fully bespoke version.\u003c\/p\u003e\u003cp\u003eAvailable with lab grown diamond options from 1.0ct to 3.0ct. Normally ready within 3–4 weeks with free insured UK shipping and 30-day returns on every order.\u003c\/p\u003e","brand":"Not Mined","offers":[{"title":"18k Yellow Gold \/ 1.0ct","offer_id":54008327209301,"sku":"NM-ER-B1-34-ROUNDSOLITAIRE4PRO-10CT-YG","price":1795.0,"currency_code":"GBP","in_stock":true},{"title":"18k White Gold \/ 1.0ct","offer_id":54008327242069,"sku":"NM-ER-B1-34-ROUNDSOLITAIRE4PRO-10CT-WG","price":1795.0,"currency_code":"GBP","in_stock":true},{"title":"18k Rose Gold \/ 1.0ct","offer_id":54008327274837,"sku":"NM-ER-B1-34-ROUNDSOLITAIRE4PRO-10CT-RG","price":1795.0,"currency_code":"GBP","in_stock":true},{"title":"18k Yellow Gold \/ 1.5ct","offer_id":54008327307605,"sku":"NM-ER-B1-34-ROUNDSOLITAIRE4PRO-15CT-YG","price":2250.0,"currency_code":"GBP","in_stock":true},{"title":"18k White Gold \/ 1.5ct","offer_id":54008327340373,"sku":"NM-ER-B1-34-ROUNDSOLITAIRE4PRO-15CT-WG","price":2250.0,"currency_code":"GBP","in_stock":true},{"title":"18k Rose Gold \/ 1.5ct","offer_id":54008327373141,"sku":"NM-ER-B1-34-ROUNDSOLITAIRE4PRO-15CT-RG","price":2250.0,"currency_code":"GBP","in_stock":true},{"title":"18k Yellow Gold \/ 2.0ct","offer_id":54008327405909,"sku":"NM-ER-B1-34-ROUNDSOLITAIRE4PRO-20CT-YG","price":2995.0,"currency_code":"GBP","in_stock":true},{"title":"18k White Gold \/ 2.0ct","offer_id":54008327438677,"sku":"NM-ER-B1-34-ROUNDSOLITAIRE4PRO-20CT-WG","price":2995.0,"currency_code":"GBP","in_stock":true},{"title":"18k Rose Gold \/ 2.0ct","offer_id":54008327471445,"sku":"NM-ER-B1-34-ROUNDSOLITAIRE4PRO-20CT-RG","price":2995.0,"currency_code":"GBP","in_stock":true},{"title":"18k Yellow Gold \/ 2.5ct","offer_id":54008327504213,"sku":"NM-ER-B1-34-ROUNDSOLITAIRE4PRO-25CT-YG","price":3750.0,"currency_code":"GBP","in_stock":true},{"title":"18k White Gold \/ 2.5ct","offer_id":54008327536981,"sku":"NM-ER-B1-34-ROUNDSOLITAIRE4PRO-25CT-WG","price":3750.0,"currency_code":"GBP","in_stock":true},{"title":"18k Rose Gold \/ 2.5ct","offer_id":54008327569749,"sku":"NM-ER-B1-34-ROUNDSOLITAIRE4PRO-25CT-RG","price":3750.0,"currency_code":"GBP","in_stock":true},{"title":"18k Yellow Gold \/ 3.0ct","offer_id":54008327602517,"sku":"NM-ER-B1-34-ROUNDSOLITAIRE4PRO-30CT-YG","price":4495.0,"currency_code":"GBP","in_stock":true},{"title":"18k White Gold \/ 3.0ct","offer_id":54008327635285,"sku":"NM-ER-B1-34-ROUNDSOLITAIRE4PRO-30CT-WG","price":4495.0,"currency_code":"GBP","in_stock":true},{"title":"18k Rose Gold \/ 3.0ct","offer_id":54008327668053,"sku":"NM-ER-B1-34-ROUNDSOLITAIRE4PRO-30CT-RG","price":4495.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0935\/3756\/7061\/files\/ChatGPT_Image_Feb_12_2026_09_25_05_AM.png?v=1779791137"},{"product_id":"round-solitaire-6-prong","title":"Round Solitaire 6-Prong","description":"\u003cp\u003e\u003cstrong\u003eRound Solitaire 6-Prong\u003c\/strong\u003e — The iconic six-prong round brilliant solitaire — featuring a hand-picked, certified lab grown diamond in the setting that defined engagement rings for over a century.\u003c\/p\u003e\u003cp\u003eSix evenly spaced prongs hold the round brilliant diamond securely while allowing maximum light entry from every angle. The six-prong configuration gives the diamond a slightly more structured, crown-like appearance compared to four prongs and is the most secure setting for round stones.\u003c\/p\u003e\u003cp\u003eEvery centre diamond is hand-picked to our exacting standard: Ideal cut, D colour and VVS clarity or higher — selected not just for certification, but for maximum sparkle and fire with the optimum dimensions. Each round brilliant is selected to our D colour, VVS clarity standard with particular attention to cut quality and symmetry — because in this iconic setting, the diamond has nowhere to hide.\u003c\/p\u003e\u003cp\u003eQuality and collaboration are at the heart of everything we do. We only use 18k gold for its superior durability and richness of colour — available in yellow gold, white gold or rose gold. Platinum is available on request through our bespoke service. We are happy to hand-pick the perfect diamond for you, or if you prefer more involvement, let us know in advance and we will share a curated selection for you to choose from. For those who want complete control, our bespoke service lets you create your engagement ring from start to finish.\u003c\/p\u003e\u003cp\u003eChoose the six-prong for the most classic engagement ring setting — hand-picked to our standard, or work with us on a fully bespoke creation.\u003c\/p\u003e\u003cp\u003eAvailable with lab grown diamond options from 1.0ct to 3.0ct. Normally ready within 3–4 weeks with free insured UK shipping and 30-day returns on every order.\u003c\/p\u003e","brand":"Not Mined","offers":[{"title":"18k Yellow Gold \/ 1.0ct","offer_id":54008328028501,"sku":"NM-ER-B1-35-ROUNDSOLITAIRE6PRO-10CT-YG","price":1795.0,"currency_code":"GBP","in_stock":true},{"title":"18k White Gold \/ 1.0ct","offer_id":54008328061269,"sku":"NM-ER-B1-35-ROUNDSOLITAIRE6PRO-10CT-WG","price":1795.0,"currency_code":"GBP","in_stock":true},{"title":"18k Rose Gold \/ 1.0ct","offer_id":54008328094037,"sku":"NM-ER-B1-35-ROUNDSOLITAIRE6PRO-10CT-RG","price":1795.0,"currency_code":"GBP","in_stock":true},{"title":"18k Yellow Gold \/ 1.5ct","offer_id":54008328126805,"sku":"NM-ER-B1-35-ROUNDSOLITAIRE6PRO-15CT-YG","price":2250.0,"currency_code":"GBP","in_stock":true},{"title":"18k White Gold \/ 1.5ct","offer_id":54008328159573,"sku":"NM-ER-B1-35-ROUNDSOLITAIRE6PRO-15CT-WG","price":2250.0,"currency_code":"GBP","in_stock":true},{"title":"18k Rose Gold \/ 1.5ct","offer_id":54008328192341,"sku":"NM-ER-B1-35-ROUNDSOLITAIRE6PRO-15CT-RG","price":2250.0,"currency_code":"GBP","in_stock":true},{"title":"18k Yellow Gold \/ 2.0ct","offer_id":54008328225109,"sku":"NM-ER-B1-35-ROUNDSOLITAIRE6PRO-20CT-YG","price":2995.0,"currency_code":"GBP","in_stock":true},{"title":"18k White Gold \/ 2.0ct","offer_id":54008328257877,"sku":"NM-ER-B1-35-ROUNDSOLITAIRE6PRO-20CT-WG","price":2995.0,"currency_code":"GBP","in_stock":true},{"title":"18k Rose Gold \/ 2.0ct","offer_id":54008328290645,"sku":"NM-ER-B1-35-ROUNDSOLITAIRE6PRO-20CT-RG","price":2995.0,"currency_code":"GBP","in_stock":true},{"title":"18k Yellow Gold \/ 2.5ct","offer_id":54008328323413,"sku":"NM-ER-B1-35-ROUNDSOLITAIRE6PRO-25CT-YG","price":3750.0,"currency_code":"GBP","in_stock":true},{"title":"18k White Gold \/ 2.5ct","offer_id":54008328356181,"sku":"NM-ER-B1-35-ROUNDSOLITAIRE6PRO-25CT-WG","price":3750.0,"currency_code":"GBP","in_stock":true},{"title":"18k Rose Gold \/ 2.5ct","offer_id":54008328388949,"sku":"NM-ER-B1-35-ROUNDSOLITAIRE6PRO-25CT-RG","price":3750.0,"currency_code":"GBP","in_stock":true},{"title":"18k Yellow Gold \/ 3.0ct","offer_id":54008328421717,"sku":"NM-ER-B1-35-ROUNDSOLITAIRE6PRO-30CT-YG","price":4495.0,"currency_code":"GBP","in_stock":true},{"title":"18k White Gold \/ 3.0ct","offer_id":54008328454485,"sku":"NM-ER-B1-35-ROUNDSOLITAIRE6PRO-30CT-WG","price":4495.0,"currency_code":"GBP","in_stock":true},{"title":"18k Rose Gold \/ 3.0ct","offer_id":54008328487253,"sku":"NM-ER-B1-35-ROUNDSOLITAIRE6PRO-30CT-RG","price":4495.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0935\/3756\/7061\/files\/ChatGPT_Image_Feb_14_2026_10_06_26_AM.png?v=1779788790"},{"product_id":"round-solitaire-6-prong-with-diamond-band","title":"Round Solitaire with Diamond Band","description":"\u003cp\u003e\u003cstrong\u003eRound Solitaire with Diamond Band\u003c\/strong\u003e — A hand-picked, certified lab grown round brilliant in the classic four-prong setting, elevated by a sparkling pavé diamond band for added glamour.\u003c\/p\u003e\n\u003cp\u003eThe secure four-prong setting showcases the round brilliant centre stone while a line of micro-set diamonds traces the band, adding continuous sparkle. This ring bridges the gap between a traditional solitaire and a more contemporary diamond-set design.\u003c\/p\u003e\n\u003cp\u003eEvery centre diamond is hand-picked to our exacting standard: Ideal cut, D colour and VVS clarity or higher — selected not just for certification, but for maximum sparkle and fire with the optimum dimensions. The centre stone is selected to our D colour, VVS clarity standard with exceptional cut quality, ensuring it stands out beautifully above the sparkling pavé band.\u003c\/p\u003e\n\u003cp\u003eQuality and collaboration are at the heart of everything we do. We only use 18k gold for its superior durability and richness of colour — available in yellow gold, white gold or rose gold. Platinum is available on request through our bespoke service. We are happy to hand-pick the perfect diamond for you, or if you prefer more involvement, let us know in advance and we will share a curated selection for you to choose from. For those who want complete control, our bespoke service lets you create your engagement ring from start to finish.\u003c\/p\u003e\n\u003cp\u003eIdeal for the classic round solitaire with extra pavé brilliance — hand-picked to our standard, or choose from a curated selection of centre stones.\u003c\/p\u003e\n\u003cp\u003eAvailable with lab grown diamond options from 1.0ct to 3.0ct. The total diamond weight will vary by your chosen carat size, with additional brilliance from the surrounding stones. Normally ready within 3–4 weeks with free insured UK shipping and 30-day returns on every order.\u003c\/p\u003e","brand":"Not Mined","offers":[{"title":"18k Yellow Gold \/ 1.0ct","offer_id":54008328552789,"sku":"NM-ER-B1-36-ROUNDSOLITAIRE6PRO-10CT-YG","price":1995.0,"currency_code":"GBP","in_stock":true},{"title":"18k White Gold \/ 1.0ct","offer_id":54008328585557,"sku":"NM-ER-B1-36-ROUNDSOLITAIRE6PRO-10CT-WG","price":1995.0,"currency_code":"GBP","in_stock":true},{"title":"18k Rose Gold \/ 1.0ct","offer_id":54008328618325,"sku":"NM-ER-B1-36-ROUNDSOLITAIRE6PRO-10CT-RG","price":1995.0,"currency_code":"GBP","in_stock":true},{"title":"18k Yellow Gold \/ 1.5ct","offer_id":54008328651093,"sku":"NM-ER-B1-36-ROUNDSOLITAIRE6PRO-15CT-YG","price":2495.0,"currency_code":"GBP","in_stock":true},{"title":"18k White Gold \/ 1.5ct","offer_id":54008328683861,"sku":"NM-ER-B1-36-ROUNDSOLITAIRE6PRO-15CT-WG","price":2495.0,"currency_code":"GBP","in_stock":true},{"title":"18k Rose Gold \/ 1.5ct","offer_id":54008328716629,"sku":"NM-ER-B1-36-ROUNDSOLITAIRE6PRO-15CT-RG","price":2495.0,"currency_code":"GBP","in_stock":true},{"title":"18k Yellow Gold \/ 2.0ct","offer_id":54008328749397,"sku":"NM-ER-B1-36-ROUNDSOLITAIRE6PRO-20CT-YG","price":3495.0,"currency_code":"GBP","in_stock":true},{"title":"18k White Gold \/ 2.0ct","offer_id":54008328782165,"sku":"NM-ER-B1-36-ROUNDSOLITAIRE6PRO-20CT-WG","price":3495.0,"currency_code":"GBP","in_stock":true},{"title":"18k Rose Gold \/ 2.0ct","offer_id":54008328814933,"sku":"NM-ER-B1-36-ROUNDSOLITAIRE6PRO-20CT-RG","price":3495.0,"currency_code":"GBP","in_stock":true},{"title":"18k Yellow Gold \/ 2.5ct","offer_id":54008328847701,"sku":"NM-ER-B1-36-ROUNDSOLITAIRE6PRO-25CT-YG","price":3950.0,"currency_code":"GBP","in_stock":true},{"title":"18k White Gold \/ 2.5ct","offer_id":54008328880469,"sku":"NM-ER-B1-36-ROUNDSOLITAIRE6PRO-25CT-WG","price":3950.0,"currency_code":"GBP","in_stock":true},{"title":"18k Rose Gold \/ 2.5ct","offer_id":54008328913237,"sku":"NM-ER-B1-36-ROUNDSOLITAIRE6PRO-25CT-RG","price":3950.0,"currency_code":"GBP","in_stock":true},{"title":"18k Yellow Gold \/ 3.0ct","offer_id":54008328946005,"sku":"NM-ER-B1-36-ROUNDSOLITAIRE6PRO-30CT-YG","price":4950.0,"currency_code":"GBP","in_stock":true},{"title":"18k White Gold \/ 3.0ct","offer_id":54008328978773,"sku":"NM-ER-B1-36-ROUNDSOLITAIRE6PRO-30CT-WG","price":4950.0,"currency_code":"GBP","in_stock":true},{"title":"18k Rose Gold \/ 3.0ct","offer_id":54008329011541,"sku":"NM-ER-B1-36-ROUNDSOLITAIRE6PRO-30CT-RG","price":4950.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0935\/3756\/7061\/files\/ChatGPT_Image_Feb_12_2026_06_47_16_PM.png?v=1779789102"}],"url":"https:\/\/www.notmined.co.uk\/collections\/round-engagement-rings.oembed","provider":"Not Mined","version":"1.0","type":"link"}