{"product_id":"antique-victorian-10-carat-rose-gold-onyx-monogram-d-signet-ring-patented-by-william-leidig-1890","title":"Antique Victorian 10 Carat Rose Gold Onyx Monogram ‘D’ Signet Ring – Patented By William Leidig, 1890","description":"\u003cstyle\u003e\n\/* ========== LUXURY PRODUCT PAGE STYLES ========== *\/\n\n\/* Hero Product Introduction *\/\n.luxury-product-intro {\n  background: linear-gradient(135deg, #f3dde3 0%, #ffffff 100%) !important;\n  border: 1px solid #d1afb5 !important;\n  padding: 30px !important;\n  margin: 20px 0 !important;\n  border-radius: 2px !important;\n}\n\n.luxury-product-intro h3 {\n  font-family: serif !important;\n  font-size: 20px !important;\n  font-weight: 400 !important;\n  color: #a4465a !important;\n  margin: 0 0 15px 0 !important;\n  letter-spacing: 0.5px !important;\n}\n\n.luxury-product-intro p {\n  font-size: 15px !important;\n  line-height: 1.8 !important;\n  color: #1c1c1c !important;\n  margin: 0 !important;\n}\n\n\/* Historical Context 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!important;\n  font-weight: 400 !important;\n  color: #a4465a !important;\n  margin: 0 0 15px 0 !important;\n  letter-spacing: 0.5px !important;\n}\n\n.luxury-provenance p {\n  font-size: 14px !important;\n  line-height: 1.8 !important;\n  color: #1c1c1c !important;\n  margin: 0 0 12px 0 !important;\n}\n\n.luxury-provenance p:last-child {\n  margin: 0 !important;\n}\n\n\/* Care Instructions *\/\n.luxury-care-box {\n  background: #f8f7f5 !important;\n  border: 1px solid #d1afb5 !important;\n  padding: 25px !important;\n  margin: 25px 0 !important;\n  border-radius: 2px !important;\n}\n\n.luxury-care-box h4 {\n  font-family: serif !important;\n  font-size: 16px !important;\n  font-weight: 400 !important;\n  color: #1c1c1c !important;\n  margin: 0 0 15px 0 !important;\n  letter-spacing: 0.5px !important;\n}\n\n.luxury-care-box ul {\n  margin: 0 !important;\n  padding-left: 20px !important;\n}\n\n.luxury-care-box li {\n  font-size: 13px !important;\n  line-height: 1.8 !important;\n  color: #666 !important;\n  margin-bottom: 8px !important;\n}\n\n\/* Specifications Table *\/\n.luxury-specs {\n  width: 100% !important;\n  border-collapse: collapse !important;\n  margin: 25px 0 !important;\n}\n\n.luxury-specs tr {\n  border-bottom: 1px solid #e5e3df !important;\n}\n\n.luxury-specs td {\n  padding: 12px 0 !important;\n  font-size: 14px !important;\n  line-height: 1.6 !important;\n}\n\n.luxury-specs td:first-child {\n  font-weight: 600 !important;\n  color: #1c1c1c !important;\n  width: 40% !important;\n}\n\n.luxury-specs td:last-child {\n  color: #666 !important;\n}\n\n\/* Divider *\/\n.luxury-product-divider {\n  width: 80px !important;\n  height: 1px !important;\n  background: linear-gradient(to right, transparent, #d1afb5, transparent) !important;\n  margin: 30px auto !important;\n  border: none !important;\n}\n\n\/* Trust Badge Section *\/\n.luxury-trust-badges {\n  display: flex !important;\n  justify-content: center !important;\n  gap: 30px !important;\n  margin: 30px 0 !important;\n  flex-wrap: wrap !important;\n}\n\n.luxury-trust-badge {\n  text-align: center !important;\n  max-width: 150px !important;\n}\n\n.luxury-trust-badge-icon {\n  font-size: 32px !important;\n  color: #a4465a !important;\n  margin-bottom: 10px !important;\n}\n\n.luxury-trust-badge p {\n  font-size: 12px !important;\n  color: #666 !important;\n  line-height: 1.5 !important;\n  margin: 0 !important;\n}\n\n\/* Related Collection CTA *\/\n.luxury-collection-cta {\n  background: linear-gradient(135deg, #f3dde3 0%, #ffffff 100%) !important;\n  border: 1px solid #d1afb5 !important;\n  padding: 30px !important;\n  margin: 30px 0 !important;\n  text-align: center !important;\n  border-radius: 2px !important;\n}\n\n.luxury-collection-cta h4 {\n  font-family: serif !important;\n  font-size: 18px !important;\n  font-weight: 400 !important;\n  color: #1c1c1c !important;\n  margin: 0 0 15px 0 !important;\n  letter-spacing: 0.5px !important;\n}\n\n.luxury-collection-cta p {\n  font-size: 14px !important;\n  color: #666 !important;\n  margin: 0 0 20px 0 !important;\n}\n\n.luxury-collection-link,\n.luxury-collection-link:link,\n.luxury-collection-link:visited,\n.luxury-collection-link:active,\n.luxury-collection-link:focus {\n  display: inline-block !important;\n  background-color: #e8c8d3 !important;\n  color: #000000 !important;\n  padding: 12px 30px !important;\n  text-decoration: none !important;\n  font-size: 12px !important;\n  letter-spacing: 1px !important;\n  text-transform: uppercase !important;\n  transition: all 0.3s ease !important;\n  border: 0 !important;\n  border-top: 1px solid #e8c8d3 !important;\n  border-left: 1px solid #e8c8d3 !important;\n  border-right: 1px solid #e8c8d3 !important;\n  border-bottom: 1px solid #e8c8d3 !important;\n  box-shadow: none !important;\n  outline: none !important;\n  background-image: none !important;\n}\n\n.luxury-collection-link:hover {\n  background-color: #a4465a !important;\n  border-top: 1px solid #a4465a !important;\n  border-left: 1px solid #a4465a !important;\n  border-right: 1px solid #a4465a !important;\n  border-bottom: 1px solid #a4465a !important;\n  color: #ffffff !important;\n}\n\u003c\/style\u003e\n\u003c!-- ========== EXAMPLE LUXURY PRODUCT PAGE ========== --\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c!-- Hero Introduction --\u003e\n\u003cdiv class=\"luxury-product-intro\"\u003eA remarkable example of late Victorian ingenuity and craftsmanship, this exceptional antique signet ring was crafted in the United States and features the innovative ‘Princess’ interchangeable initial system, patented by William Leidig of Newark, New Jersey, on 26 August 1890 (U.S. Patent No. 435,068).\u003c\/div\u003e\n\u003c!-- Historical Context --\u003e\u003c!-- Gemstone\/Material Details Grid --\u003e\u003chr class=\"luxury-product-divider\"\u003e\u003c!-- Specifications Table --\u003e\n\u003cp\u003eBeautifully crafted in warm 10 carat rose gold, the ring showcases a polished rectangular plaque of black Onyx measuring 17.4 x 12.3mm, surmounted by an elegant openwork old English initial ‘D’ in gold.  Unlike traditional signet rings where the monogram is engraved directly into the stone, this ingenious Victorian design features the initial mounted onto a finely engineered gold plaque, preserving the polished onyx beneath while creating wonderful depth and dimension.\u003c\/p\u003e\n\u003cp\u003eOne of the most fascinating aspects of this ring lies hidden within its construction. The decorative initial is secured by an ingenious pivoting locking screw mechanism concealed beneath the ring. Patented by William Leidig, the miniature screw pivots into position before tightening into the setting, firmly securing both the onyx and monogram in place. \u003cbr\u003e\u003cbr\u003eThis clever mechanical system allowed the initial to be removed and replaced with another, enabling the ring to be personalised without altering or re-engraving the stone itself—a remarkable innovation for the Victorian era and a wonderful example of 19th-century jewellery engineering.\u003c\/p\u003e\n\u003cp\u003eThe shoulders are beautifully decorated with finely engraved scrollwork that complements the elegant proportions of the ring, while the polished rose gold band provides a comfortable fit and timeless appeal. More than 130 years after its patent was granted, this is not only a beautiful antique signet ring but also a rare piece of jewellery history that perfectly showcases the Victorian fascination with innovation, craftsmanship and mechanical design.  A beautifully solid ring weighing 5.99 grams, it sits low rise to the finger, measuring 4.25mm, while maintaining an impressive presence on the finger. \u003c\/p\u003e\n\u003cp\u003eThe ring remains clearly stamped ‘Princess’ together with ‘PAT-AUG-26-90’, commemorating the original patent date and confirming its connection to this celebrated Victorian invention.\u003cbr\u003e\u003cbr\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0267\/6097\/0275\/files\/IMG_5453.jpg?v=1785390643\" alt=\"\" width=\"185\" height=\"277\"\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ctable class=\"luxury-specs\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eStones\u003c\/td\u003e\n\u003ctd\u003ex1 Polished black Onyx \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMeasurements\u003c\/td\u003e\n\u003ctd\u003e1.74 cm x 1.23mm \u003cbr\u003eRise- 4.25 mm\u003cbr\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e5.99 grams \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMarks\u003c\/td\u003e\n\u003ctd\u003eXRF tested for 10ct\u003cbr\u003e\u003cbr\u003eHallmarked with;\u003cbr\u003e‘Princess’\u003cbr\u003ePAT-AUG-26-90 (William Leidig of Newark, New Jersey, on 26 August 1890)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFingers Size\u003c\/td\u003e\n\u003ctd\u003eP or 17.99mm diameter or US7 3\/4.  \u003cbr\u003eCan be resized up 2-3 down 2 with any competent jeweller.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003chr class=\"luxury-product-divider\"\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003c!-- Provenance\/Story --\u003e\n\u003cdiv class=\"luxury-provenance\"\u003e\n\u003cp\u003e\u003cstrong\u003eCondition\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eVery good to excellent vintage condition.  No chips or damage to Onyx plaque; applied ‘D’ monogram sits flat and secures perfectly due to the mechanical ‘screw’ back to the verso. The gold is lovely, very solid and substantial, with no thinning or loss to detail.  The shank is very strong, thick and only shows subtle irregularity to the shape under very close observation, only noted for accuracy and minor superficial marks to rear of shank, a jeweller could polish this as desired. Stamps inside shank are clear and legible.  Wonderful, rare to find ring!\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"luxury-collection-cta\"\u003e\n\u003ch4\u003eExplore Our Collection\u003c\/h4\u003e\n\u003cp\u003eDiscover our curated collection, each piece with its own distinctive character and exceptional craftsmanship.\u003c\/p\u003e\n\u003ca class=\"luxury-collection-link\" href=\"\/collections\/available-pieces?filter.p.tag=Victorian\"\u003eView The Collection\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/IDfcphL8SO4?si=j9QT5_1zNXsjln0v\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e","brand":"Graisons Fine Jewellery","offers":[{"title":"Default Title","offer_id":43464632598563,"sku":null,"price":1450.0,"currency_code":"AUD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0267\/6097\/0275\/files\/A3F71535-1211-40F7-A0F0-49E1006D7DC2_1.png?v=1785391033","url":"https:\/\/graisonsfinejewellery.com\/products\/antique-victorian-10-carat-rose-gold-onyx-monogram-d-signet-ring-patented-by-william-leidig-1890","provider":"Graisons Fine Jewellery","version":"1.0","type":"link"}