{"product_id":"fairest-herkimer-diamond-black-onyx-ring-set-black-ruthenium","title":"Fairest Herkimer Diamond \u0026 Black Onyx Engagement Ring Set in Black Ruthenium","description":"\u003cstyle\u003e\n.product-rich-content { font-family: inherit; color: #2a2a2a; line-height: 1.65; max-width: 720px; margin: 0 auto; }\n.product-rich-content h2 { font-size: 1.35em; font-weight: 600; color: #1a1a1a; margin-top: 2em; margin-bottom: 0.5em; padding-bottom: 0.4em; border-bottom: 1px solid #d8cfe0; letter-spacing: -0.01em; }\n.product-rich-content h2:first-child { margin-top: 0; }\n.product-rich-content p { margin: 0.8em 0; }\n.product-rich-content ul { padding-left: 1.4em; margin: 0.8em 0; }\n.product-rich-content li { margin-bottom: 0.4em; }\n.product-rich-content .lead-paragraph { font-size: 1.05em; color: #1a1a1a; padding: 1em 1.2em; background: #f4eef9; border-left: 3px solid #5a3d6e; border-radius: 4px; margin-bottom: 1.5em; }\n.product-rich-content .feature-pills { display: flex; flex-wrap: wrap; gap: 0.5em; margin: 1.2em 0; }\n.product-rich-content .feature-pills .pill { background: #f4eef9; color: #5a3d6e; padding: 0.4em 0.9em; border-radius: 100px; font-size: 0.88em; font-weight: 500; border: 1px solid #d8cfe0; }\n.product-rich-content .ring-callout { display: grid; grid-template-columns: 1fr 1fr; gap: 1em; margin: 1.2em 0; }\n.product-rich-content .ring-callout .ring-card { padding: 1em 1.2em; background: #fafafa; border: 1px solid #ececec; border-radius: 6px; }\n.product-rich-content .ring-callout .ring-card h3 { font-size: 0.95em; font-weight: 600; margin: 0 0 0.4em 0; color: #5a3d6e; letter-spacing: 0.04em; text-transform: uppercase; }\n.product-rich-content .ring-callout .ring-card p { margin: 0.4em 0; font-size: 0.92em; }\n.product-rich-content .spec-card { background: #fafafa; border: 1px solid #ececec; border-radius: 6px; padding: 1.2em 1.5em; margin: 1em 0; }\n.product-rich-content .spec-card ul { margin: 0; }\n.product-rich-content .spec-card li { list-style: none; padding: 0.35em 0; border-bottom: 1px dashed #e8e8e8; }\n.product-rich-content .spec-card li:last-child { border-bottom: none; }\n.product-rich-content .spec-card strong { display: inline-block; min-width: 140px; color: #1a1a1a; }\n.product-rich-content .product-faq { margin-top: 2.5em; }\n.product-rich-content .product-faq h2 { margin-bottom: 1em; }\n.product-rich-content .faq-item { border: 1px solid #e8e8e8; border-radius: 6px; margin-bottom: 0.6em; background: #fff; transition: border-color 0.2s ease; }\n.product-rich-content .faq-item:hover { border-color: #5a3d6e; }\n.product-rich-content .faq-item summary { cursor: pointer; padding: 0.9em 1.1em; font-weight: 500; list-style: none; color: #1a1a1a; position: relative; padding-right: 2.5em; }\n.product-rich-content .faq-item summary::-webkit-details-marker { display: none; }\n.product-rich-content .faq-item summary::after { content: \"+\"; position: absolute; right: 1.1em; top: 50%; transform: translateY(-50%); font-size: 1.3em; color: #5a3d6e; font-weight: 300; transition: transform 0.2s ease; }\n.product-rich-content .faq-item[open] summary::after { content: \"−\"; }\n.product-rich-content .faq-item[open] summary { border-bottom: 1px solid #d8cfe0; }\n.product-rich-content .faq-item p { padding: 0 1.2em 1em; margin: 0.6em 0 0; color: #4a4a4a; }\n@media (max-width: 600px) {\n.product-rich-content .ring-callout { grid-template-columns: 1fr; }\n.product-rich-content .spec-card strong { display: block; min-width: auto; margin-bottom: 0.2em; }\n}\n\u003c\/style\u003e\n\u003cdiv class=\"product-rich-content\"\u003e\n\u003cp class=\"lead-paragraph\"\u003eA two-piece engagement ring set in black. A 5 × 7 mm pear natural Herkimer diamond sits on a black onyx pavé band, and a second band carries an open, pear-shaped halo of onyx that frames it like a hand mirror, with a single onyx marquise at the top where the handle would be. Solid 925 sterling silver with a black ruthenium finish. \u003cstrong\u003eEvery Herkimer carries its own inclusions, so no two centers look alike.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv class=\"feature-pills\"\u003e\n\u003cspan class=\"pill\"\u003eNatural Herkimer Diamond\u003c\/span\u003e\n\u003cspan class=\"pill\"\u003ePear Cut, 5 × 7 mm\u003c\/span\u003e\n\u003cspan class=\"pill\"\u003eBlack Onyx Pavé\u003c\/span\u003e\n\u003cspan class=\"pill\"\u003eOpen Mirror Halo\u003c\/span\u003e\n\u003cspan class=\"pill\"\u003eTwo-Piece Nesting Set\u003c\/span\u003e\n\u003cspan class=\"pill\"\u003eBlack Ruthenium Finish\u003c\/span\u003e\n\u003cspan class=\"pill\"\u003eSizes 4–11\u003c\/span\u003e\n\u003c\/div\u003e\n\u003ch2\u003eTwo Rings, One Mirror\u003c\/h2\u003e\n\u003cdiv class=\"ring-callout\"\u003e\n\u003cdiv class=\"ring-card\"\u003e\n\u003ch3\u003ePear Solitaire\u003c\/h3\u003e\n\u003cp\u003eA four-prong 5 × 7 mm pear Herkimer, point up, on a slim band set with a line of black onyx pavé along each shoulder.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ring-card\"\u003e\n\u003ch3\u003eMirror Halo Band\u003c\/h3\u003e\n\u003cp\u003eA matching onyx pavé band that rises into an open pear frame, topped with one onyx marquise. The frame sits over the center stone so the Herkimer appears to float inside it.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003eWorn together the two rings read as a single dark halo ring with a clear stone at its heart. Worn apart, the solitaire is a clean onyx pavé pear and the mirror band is an open frame ring that works over any slim stacker. The design belongs to the dark-romance lane we cover in \u003ca href=\"https:\/\/aquamarise.com\/blogs\/journal\/gothic-wedding-rings-dark-romance-styles-for-your-big-day\"\u003egothic wedding rings\u003c\/a\u003e and \u003ca href=\"https:\/\/aquamarise.com\/blogs\/journal\/black-rings-for-women-meaning-styles-and-how-to-choose\"\u003eblack rings for women\u003c\/a\u003e; for the wider field, \u003ca href=\"https:\/\/aquamarise.com\/blogs\/journal\/fairy-engagement-rings-guide\"\u003efairy engagement rings\u003c\/a\u003e and \u003ca href=\"https:\/\/aquamarise.com\/blogs\/journal\/non-traditional-engagement-rings-a-complete-buyer-s-guide\"\u003enon-traditional engagement rings\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch2\u003eThe Herkimer Diamond\u003c\/h2\u003e\n\u003cp\u003eThe center is a natural Herkimer diamond: a water-clear quartz crystal from Herkimer County, New York, named for its diamond-like brightness rather than its chemistry. This one is faceted as a 5 × 7 mm pear with the point toward the fingertip. Herkimers are prized for what is inside them, and each stone holds its own scatter of tiny inclusions, so the one you receive will share the cut and setting of the photo but not the exact pattern.\u003c\/p\u003e\n\u003cp\u003eOur \u003ca href=\"https:\/\/aquamarise.com\/blogs\/journal\/what-is-a-herkimer-diamond-origin-meaning-value-complete-guide\"\u003ewhat is a Herkimer diamond\u003c\/a\u003e guide covers where the crystals come from and what they are worth, \u003ca href=\"https:\/\/aquamarise.com\/blogs\/journal\/herkimer-diamond-rings-are-they-durable\"\u003eare Herkimer diamond rings durable\u003c\/a\u003e covers daily wear, and \u003ca href=\"https:\/\/aquamarise.com\/blogs\/journal\/herkimer-diamond-vs-salt-and-pepper-diamond-which-is-right-for-your-ring\"\u003eHerkimer vs salt and pepper diamond\u003c\/a\u003e sets it against the other included stone.\u003c\/p\u003e\n\u003ch2\u003eMetal and Stones\u003c\/h2\u003e\n\u003cp\u003eBoth rings are solid 925 sterling silver with a \u003ca href=\"https:\/\/aquamarise.com\/blogs\/journal\/what-is-black-ruthenium\"\u003eblack ruthenium\u003c\/a\u003e finish, a platinum-group metal that settles to a deep gunmetal rather than a flat black. The onyx pavé nearly disappears into it, which leaves the clear Herkimer as the one bright point in the set.\u003c\/p\u003e\n\u003cp\u003eThe center pear is \u003cstrong\u003enatural Herkimer diamond quartz\u003c\/strong\u003e. Every small round stone and the marquise at the top of the frame are \u003cstrong\u003enatural black onyx\u003c\/strong\u003e; our \u003ca href=\"https:\/\/aquamarise.com\/blogs\/journal\/black-onyx-meaning\"\u003eblack onyx meaning\u003c\/a\u003e post covers the stone's history.\u003c\/p\u003e\n\u003cp\u003ePart of our \u003ca href=\"https:\/\/aquamarise.com\/collections\/herkimer-diamond-engagement-rings\"\u003eHerkimer diamond engagement rings\u003c\/a\u003e, \u003ca href=\"https:\/\/aquamarise.com\/collections\/black-onyx-engagement-rings\"\u003eblack onyx engagement rings\u003c\/a\u003e, \u003ca href=\"https:\/\/aquamarise.com\/collections\/halo-engagement-rings\"\u003ehalo engagement rings\u003c\/a\u003e and \u003ca href=\"https:\/\/aquamarise.com\/collections\/pear-shaped-engagement-rings\"\u003epear shaped engagement rings\u003c\/a\u003e collections, alongside the rest of our \u003ca href=\"https:\/\/aquamarise.com\/collections\/black-ruthenium-jewelry\"\u003eblack ruthenium jewelry\u003c\/a\u003e and \u003ca href=\"https:\/\/aquamarise.com\/collections\/gothic-engagement-rings\"\u003egothic engagement rings\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cdiv class=\"spec-card\"\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSet includes:\u003c\/strong\u003e Pear solitaire and open halo mirror band — two rings\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCenter stone:\u003c\/strong\u003e Natural Herkimer diamond (quartz), pear cut, 5 × 7 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccent stones:\u003c\/strong\u003e Natural black onyx rounds, pavé-set on both rings; one black onyx marquise at the top of the frame\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMetal:\u003c\/strong\u003e Solid 925 sterling silver, black ruthenium finish\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSetting:\u003c\/strong\u003e Four-prong pear center; raised open halo band\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHardness:\u003c\/strong\u003e Quartz 7, onyx 6.5 to 7 on the Mohs scale\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSizes:\u003c\/strong\u003e 4 to 11, including half sizes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEngraving:\u003c\/strong\u003e Available, up to 16 characters\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePresentation:\u003c\/strong\u003e Free luxury velvet jewelry box\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003ch2\u003eCare\u003c\/h2\u003e\n\u003cp\u003eQuartz is 7 and onyx 6.5 to 7 on the Mohs scale, both suited to regular wear. Clean with warm water, mild soap and a soft brush, working the brush along the pavé where lotion collects, then dry before storing. Onyx is slightly porous, so keep the set away from bleach and solvents. No silver polishing cloths or abrasive compounds, which thin the black ruthenium finish; avoid ultrasonic cleaners and household chemicals for the same reason. Take the set off for the gym, gardening and heavy cleaning. Our \u003ca href=\"https:\/\/aquamarise.com\/blogs\/journal\/how-to-care-for-your-engagement-ring\"\u003eengagement ring care guide\u003c\/a\u003e and \u003ca href=\"https:\/\/aquamarise.com\/blogs\/journal\/how-to-clean-jewelry-at-home\"\u003ehow to clean jewelry at home\u003c\/a\u003e cover the rest.\u003c\/p\u003e\n\u003cdiv class=\"product-faq\"\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdetails class=\"faq-item\"\u003e\u003csummary\u003eIs the Herkimer diamond a real diamond?\u003c\/summary\u003e\u003cp\u003eNo. A Herkimer diamond is a naturally double-terminated quartz crystal from Herkimer County, New York, named for its diamond-like clarity and shape. It is natural quartz, not diamond. The black stones on both rings are natural black onyx.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails class=\"faq-item\"\u003e\u003csummary\u003eWill mine look exactly like the photo?\u003c\/summary\u003e\u003cp\u003eNo, and we would rather say so plainly. Every Herkimer carries its own inclusions, so the pear you receive will share the size, cut and setting but not the exact pattern inside the stone.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails class=\"faq-item\"\u003e\u003csummary\u003eHow many rings come in the set?\u003c\/summary\u003e\u003cp\u003eTwo. The pear solitaire and an open halo band shaped like a hand mirror that frames it. Both ship together in one box.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails class=\"faq-item\"\u003e\u003csummary\u003eHow big is the center stone?\u003c\/summary\u003e\u003cp\u003e5 × 7 mm, pear cut, held in four prongs with the point toward the fingertip.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails class=\"faq-item\"\u003e\u003csummary\u003eIs Herkimer quartz hard enough for everyday wear?\u003c\/summary\u003e\u003cp\u003eYes, with ordinary care. Quartz is 7 on the Mohs scale and onyx is 6.5 to 7, both fine for daily wear. The black ruthenium finish, not the stones, is the part to protect.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails class=\"faq-item\"\u003e\u003csummary\u003eHow dark is the black ruthenium finish?\u003c\/summary\u003e\u003cp\u003eRuthenium settles to a deep gunmetal rather than a flat jet black. Against it the onyx pavé reads almost seamless and the clear Herkimer reads brighter.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails class=\"faq-item\"\u003e\u003csummary\u003eWhat are the rings made of?\u003c\/summary\u003e\u003cp\u003eSolid 925 sterling silver with a black ruthenium finish. No brass or base metal.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails class=\"faq-item\"\u003e\u003csummary\u003eCan I wear the rings separately?\u003c\/summary\u003e\u003cp\u003eYes. The pear solitaire stands on its own as an onyx pavé ring, and the mirror band wears alone as an open halo ring with nothing inside it.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails class=\"faq-item\"\u003e\u003csummary\u003eDo the two rings sit flush?\u003c\/summary\u003e\u003cp\u003eYes. The halo band is raised so its frame sits over the center stone, and the two pavé shanks stack together without a gap.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails class=\"faq-item\"\u003e\u003csummary\u003eWhat sizes are available?\u003c\/summary\u003e\u003cp\u003eSizes 4 through 11, including every half size. Both rings are made to the same size.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails class=\"faq-item\"\u003e\u003csummary\u003eCan I have them engraved?\u003c\/summary\u003e\u003cp\u003eYes. Engraving is available on the inner band, up to 16 characters, and can be added as an option at checkout.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails class=\"faq-item\"\u003e\u003csummary\u003eAre the stones ethically sourced?\u003c\/summary\u003e\u003cp\u003eYes. All Aquamarise stones are conflict-free and responsibly sourced, and every order arrives in a free luxury velvet jewelry box.\u003c\/p\u003e\u003c\/details\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"FAQPage\",\n  \"mainEntity\": [\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Is the Herkimer diamond a real diamond?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"No. A Herkimer diamond is a naturally double-terminated quartz crystal from Herkimer County, New York, named for its diamond-like clarity and shape. It is natural quartz, not diamond. The black stones on both rings are natural black onyx.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Will mine look exactly like the photo?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"No, and we would rather say so plainly. Every Herkimer carries its own inclusions, so the pear you receive will share the size, cut and setting but not the exact pattern inside the stone.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"How many rings come in the set?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Two. The pear solitaire and an open halo band shaped like a hand mirror that frames it. Both ship together in one box.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"How big is the center stone?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"5 × 7 mm, pear cut, held in four prongs with the point toward the fingertip.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Is Herkimer quartz hard enough for everyday wear?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes, with ordinary care. Quartz is 7 on the Mohs scale and onyx is 6.5 to 7, both fine for daily wear. The black ruthenium finish, not the stones, is the part to protect.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"How dark is the black ruthenium finish?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Ruthenium settles to a deep gunmetal rather than a flat jet black. Against it the onyx pavé reads almost seamless and the clear Herkimer reads brighter.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What are the rings made of?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Solid 925 sterling silver with a black ruthenium finish. No brass or base metal.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Can I wear the rings separately?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes. The pear solitaire stands on its own as an onyx pavé ring, and the mirror band wears alone as an open halo ring with nothing inside it.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Do the two rings sit flush?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes. 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All Aquamarise stones are conflict-free and responsibly sourced, and every order arrives in a free luxury velvet jewelry box.\"\n      }\n    }\n  ]\n}\n\u003c\/script\u003e\n\u003c\/div\u003e","brand":"Aquamarise","offers":[{"title":"4","offer_id":53326454587703,"sku":"BOX #871-4","price":185.0,"currency_code":"USD","in_stock":true},{"title":"4.5","offer_id":53326454620471,"sku":"BOX #871-4.5","price":185.0,"currency_code":"USD","in_stock":true},{"title":"5","offer_id":53326454653239,"sku":"BOX #871-5","price":185.0,"currency_code":"USD","in_stock":true},{"title":"5.5","offer_id":53326454686007,"sku":"BOX #871-5.5","price":185.0,"currency_code":"USD","in_stock":true},{"title":"6","offer_id":53326454718775,"sku":"BOX #871-6","price":185.0,"currency_code":"USD","in_stock":true},{"title":"6.5","offer_id":53326454751543,"sku":"BOX #871-6.5","price":185.0,"currency_code":"USD","in_stock":true},{"title":"7","offer_id":53326454784311,"sku":"BOX #871-7","price":185.0,"currency_code":"USD","in_stock":true},{"title":"7.5","offer_id":53326454817079,"sku":"BOX #871-7.5","price":185.0,"currency_code":"USD","in_stock":true},{"title":"8","offer_id":53326454849847,"sku":"BOX #871-8","price":185.0,"currency_code":"USD","in_stock":true},{"title":"8.5","offer_id":53326454882615,"sku":"BOX #871-8.5","price":185.0,"currency_code":"USD","in_stock":true},{"title":"9","offer_id":53326454915383,"sku":"BOX #871-9","price":185.0,"currency_code":"USD","in_stock":true},{"title":"9.5","offer_id":53326454948151,"sku":"BOX #871-9.5","price":185.0,"currency_code":"USD","in_stock":true},{"title":"10","offer_id":53326454980919,"sku":"BOX #871-10","price":185.0,"currency_code":"USD","in_stock":true},{"title":"10.5","offer_id":53326455013687,"sku":"BOX #871-10.5","price":185.0,"currency_code":"USD","in_stock":true},{"title":"11","offer_id":53326455046455,"sku":"BOX #871-11","price":185.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0537\/0586\/7444\/files\/Fairest_Herkimer_Diamond_and_Black_Onyx_Engagement_Ring_Set_in_Black_Ruthenium.jpg?v=1792018966","url":"https:\/\/aquamarise.com\/products\/fairest-herkimer-diamond-black-onyx-ring-set-black-ruthenium","provider":"Aquamarise","version":"1.0","type":"link"}