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The historical origin of the old European cut engagement ring
12.27.2024 | yuxinhejewelry | Blog

The birth and development of the ancient cutting method, tracing the origin of the old European cut
The old European cut, that is, the old European cut, is a diamond cutting method that carries a deep historical heritage. Tracing back to the long river of history, as early as the mid-to-late 14th century, people began to polish diamonds, but at that time they simply polished the surface of the rough diamonds smooth, and there was no concept of "faceting".
As time went by, after the 15th century, the diamond cutting process continued to develop, and table-shaped cuts, rose cuts, old European cuts, etc. gradually appeared. There were more and more "facets" cut on diamonds, and the old European cut, that is, the old European cut, gradually became one of the more common and popular styles at the time. In that era without advanced machinery and equipment, craftsmen used the candlelight in the room to find the refraction of light and cut diamonds by hand. Every diamond processed by the old European cutting process embodies the craftsmen's efforts and exquisite skills. They are not just decorations, but more like unique works of art, witnessing people's pursuit of beauty and exploration of diamond processing in that era.
The diamonds of the old European cutting have distinct characteristics, with a small table and a high and wide crown. This unique form gives it a different charm. It does not pursue the ultimate shine like some later cutting methods, but has a simple and restrained temperament, as if quietly telling the story of the past years. Moreover, this cutting method has inspired many contemporary designers to create many retro jewelry works, so that the charm of the old European cutting can still be continued in modern society, and many people who pursue individuality and retro style favor it.
Why was the change in the late nineteenth century replaced by other cutting methods?
In the late nineteenth century, the traditional cutting method of the old European cutting ushered in a major change and was gradually replaced by other more faceted cutting methods. At that time, the entire diamond cutting industry began to move in the direction of "brilliant cut".


There are many reasons for this. On the one hand, the fire performance of old European cut diamonds is relatively not as dazzling as the "brilliant cut" that appeared later. In the context of people's increasing requirements for the brilliance of jewelry, those cutting methods that can show stronger luster, more refractive surfaces, and more shining light are naturally more popular in the market. For example, "brilliant cut" can make diamonds have almost perfect proportions, thereby releasing the brilliance of diamonds to the greatest extent, and can become the focus of attention in various occasions, satisfying people's psychological needs to show gorgeousness and nobility by wearing diamond jewelry.
On the other hand, with the progress of the times and the continuous development of science and technology, the technology and tools for cutting diamonds have made a qualitative leap, which enables craftsmen to create diamond cuts with more faces more accurately and efficiently, and can ensure mass production to meet the growing market demand. However, the traditional cutting method of old European cut, which is relatively more dependent on manual work, takes a long time, and has limited output, has gradually lost its advantages under the impact of the wave of industrialization.
However, although the Old European cut was replaced by other cutting methods at that time, it did not disappear from the stage of history. On the contrary, in today's era of retro fashion, it has returned to people's vision with its unique historical charm and simple style, becoming an alternative choice for many people when choosing engagement rings, and starting its "revival journey."

const TAG = "spz-custom-announcement"; const DISPLAY_TYPE = { ANNOUNCEMENT: "PTT_BANNER" // 公告栏 }; const API = { LIST: `/api/storefront/promotion/placement/list`, // 获取公告栏列表 REPORT: `/api/storefront/promotion/placement/data/report` // 上报数据 }; const DISPLAY_DEVICE = { PC_AND_MOBILE: "PD_PC_MOBILE", // PC和移动端 PC: "PD_PC", // PC MOBILE: "PD_MOBILE" // 移动端 }; const REPORT_EVENT = { CLICK: "PE_CLICK", // 点击事件 IMPRESSION: "PE_IMPRESSION" // 曝光事件 }; const POSITION = { TOP: "PP_TOP", // 顶部 BOTTOM: "PP_BOTTOM" // 底部 } const MODE = { FIXED: "PM_FIXED", // 固定 NORMAL: "PM_SCROLLING" // 滚动 } const THEME_NAME = window.SHOPLAZZA.theme.merchant_theme_name; class SpzCustomAnnouncement extends SPZ.BaseElement { constructor(element) { super(element); this.announcementList_ = []; // 公告栏数据 } static deferredMount() { return false; } buildCallback() { this.action_ = SPZServices.actionServiceForDoc(this.element); this.templates_ = SPZServices.templatesForDoc(this.element); this.xhr_ = SPZServices.xhrFor(this.win); this.setupAction_(); this.viewport_ = this.getViewport(); } mountCallback() { this.fetchData_(); this.createAnnouncementDom_(); this.listenCartChange_(); } fetchData_(type = '') { const id = window.SHOPLAZZA.meta.page.template_type === 51 ? window.SHOPLAZZA.meta.page.resource_id : 0; return this.xhr_.fetchJson(API.LIST, { method: 'POST', body: { page_id: window.SHOPLAZZA.meta.page.template_type, placement_type: DISPLAY_TYPE.ANNOUNCEMENT, discount_id: id } }).then((res) => { this.announcementList_ = res.list || []; if (this.announcementList_.length > 0) { this.announcementList_.forEach((item) => { item.config = JSON.parse(item.config); }); } if(type === 'cartChange') { this.announcementList_.forEach((item) => { this.updateText_(item); }); } else { this.doRender_(this.announcementList_); } }).catch((error) => { console.error(error); }) } doRender_(data) { return this.templates_ .findAndRenderTemplate(this.element, { list: this.announcementList_ }) .then((el) => { const children = this.element.querySelector('*:not(template)'); children && SPZCore.Dom.removeElement(children); this.element.appendChild(el); }) .then(() => { this.announcementList_.forEach((item) => { this.showAnnouncement_(item); }); }).then(() => { this.handleThemeCompatibility_(); }); } // 更新文案 updateText_(item) { const announcement = document.querySelector(`#announcement-${item.id}`); const announcementText = announcement.querySelectorAll('.announcement_text'); const textArr = item.config.text_discount.replace_texts; const textDom = textArr.map((text) => { return `${text}`; }).join(','); announcementText.forEach((text) => { text.innerHTML = textDom; }); } // 创建公告栏dom createAnnouncementDom_() { const isHero = /Hero/.test(THEME_NAME); const isEva = /Eva/.test(THEME_NAME); const headerEl = document.querySelector('[data-section-type="header"]'); const headerSticky = headerEl && SPZCore.Dom.computedStyle(this.win, headerEl).position === 'sticky'; // 创建滚动的底部公告栏 const announcementBottomContainer = document.createElement('div'); announcementBottomContainer.className = 'announcement__container_bottom bootstrap'; document.body.appendChild(announcementBottomContainer); // 创建固定的底部公告栏 const announcementBottomSticky = document.createElement('ljs-sticky'); announcementBottomSticky.className = 'announcement__container_bottom-sticky'; announcementBottomSticky.setAttribute('layout', 'container'); announcementBottomSticky.setAttribute('position', 'bottom'); announcementBottomSticky.style.position = 'fixed'; announcementBottomSticky.style.bottom = '0'; announcementBottomSticky.style.left = '0'; announcementBottomSticky.style.right = '0'; announcementBottomSticky.style.zIndex = '1030'; document.body.appendChild(announcementBottomSticky); const announcementTopContainer = document.createElement('div'); announcementTopContainer.classList.add('announcement__container_top'); if (isHero) { announcementTopContainer.classList.add('announcement__container_top_zIndex_1030'); } announcementTopContainer.classList.add('bootstrap'); document.body.insertBefore(announcementTopContainer, document.body.children[0]); const announcementTopFixedContainer = document.createElement('div'); announcementTopFixedContainer.classList.add('announcement__container_top-fixed'); if (isHero) { announcementTopFixedContainer.classList.add('announcement__container_top_zIndex_1030'); } announcementTopFixedContainer.classList.add('bootstrap'); const insertBeforeElement = headerSticky ? headerEl : document.body; insertBeforeElement.insertBefore(announcementTopFixedContainer, insertBeforeElement.children[0]); if (isEva) { const evaHeader = document.querySelector('header.header'); const isEvaMaskHeader = evaHeader && SPZCore.Dom.computedStyle(this.win, evaHeader).position === 'absolute'; let fixedBannerTopContainer = document.querySelector('.announcement__container_top-fixed'); if (isEvaMaskHeader) { if (fixedBannerTopContainer) { fixedBannerTopContainer.remove(); } const newBanner = document.createElement('div'); newBanner.className = 'announcement__container_top-fixed bootstrap'; document.body.insertBefore(newBanner, document.body.firstChild); fixedBannerTopContainer = newBanner; } else { if (!headerEl) return; const observer = new MutationObserver(() => { const isSticky = SPZCore.Dom.computedStyle(this.win, headerEl).position === 'sticky'; if (!isSticky) return; const isTopFixedAnnouncementInHeader = headerEl.querySelector('.announcement__container_top-fixed'); if (isTopFixedAnnouncementInHeader) return; const announcementTopFixedContainer = document.querySelector('.announcement__container_top-fixed'); if (announcementTopFixedContainer) { announcementTopFixedContainer.remove(); headerEl.insertBefore(announcementTopFixedContainer, headerEl.children[0]); observer.disconnect(); } }); observer.observe(headerEl, { attributes: true, attributeFilter: ['style', 'class'] }); } if (headerSticky && !isEvaMaskHeader && fixedBannerTopContainer) { fixedBannerTopContainer.style.position = 'relative'; fixedBannerTopContainer.style.zIndex = '29'; } } } // 展示公告栏 showAnnouncement_(item) { const announcement = document.querySelector(`#announcement-${item.id}`); const announcementBottomContainer = document.querySelector('.announcement__container_bottom'); const announcementBottomSticky = document.querySelector('.announcement__container_bottom-sticky'); const announcementTopContainer = document.querySelector('.announcement__container_top'); const announcementTopFixedContainer = document.querySelector('.announcement__container_top-fixed'); const isPC = this.viewport_.getWidth() >= 960; const isMobile = this.viewport_.getWidth() < 960; const isMatchPCDevice = item.device === DISPLAY_DEVICE.PC_AND_MOBILE || item.device === DISPLAY_DEVICE.PC; const isMatchMobileDevice = item.device == DISPLAY_DEVICE.PC_AND_MOBILE || item.device === DISPLAY_DEVICE.MOBILE; if((isPC && isMatchPCDevice) || (isMobile && isMatchMobileDevice)) { if (item.position === POSITION.BOTTOM) { if(item.mode === MODE.FIXED) { announcementBottomSticky && announcementBottomSticky.appendChild(announcement); } else { announcementBottomContainer && announcementBottomContainer.appendChild(announcement); } } else { if (item.mode === MODE.FIXED) { announcementTopFixedContainer && announcementTopFixedContainer.appendChild(announcement); } else { announcementTopContainer && announcementTopContainer.appendChild(announcement); } } this.reportData({ placement_id: item.id, event: REPORT_EVENT.IMPRESSION }); } } // 处理主题兼容 handleThemeCompatibility_() { try { const isBoost = /Boost/.test(THEME_NAME); const isHyde = /Hyde/.test(THEME_NAME); const isEva = /Eva/.test(THEME_NAME); const boostHeader = document.querySelector('.boost-header'); const fixedBannerTopContainer = document.querySelector('.announcement__container_top-fixed'); const notFixedBannerTopContainer = document.querySelector('.announcement__container_top'); const headerEl = document.querySelector('[data-section-type="header"]'); const headerSticky = headerEl && SPZCore.Dom.computedStyle(this.win, headerEl).position === 'sticky'; const header = document.querySelector('.header__fixed') || document.querySelector('.header__wrapper'); const headerFixed = header && SPZCore.Dom.computedStyle(this.win, header).position === 'fixed'; const handleScroll = SPZCore.Types.throttle(this.win, () => { if (isHyde) { if (header && headerSticky) { header.style.marginTop = `${fixedBannerTopContainer.offsetHeight}px`; } else { notFixedBannerTopContainer.style.marginTop = `${fixedBannerTopContainer.offsetHeight}px`; } } if (isEva) { const evaHeader = document.querySelector('header.header'); const isEvaMaskHeader = evaHeader && SPZCore.Dom.computedStyle(this.win, evaHeader).position === 'absolute'; if (!isEvaMaskHeader) return; if (evaHeader.classList.contains('header__fixed')) { evaHeader.style.marginTop = `${fixedBannerTopContainer.offsetHeight}px`; } else { notFixedBannerTopContainer.style.marginTop = `${fixedBannerTopContainer.offsetHeight}px`; } if(document.documentElement.scrollTop === 0) { evaHeader.style.marginTop = '0'; } } if (headerSticky) return; if (headerFixed) { header.style.marginTop = `${fixedBannerTopContainer.offsetHeight}px`; } else { const observer = new MutationObserver((mutationsList, observer) => { for (const mutation of mutationsList) { if (mutation.type === 'childList' && fixedBannerTopContainer.childElementCount > 0) { notFixedBannerTopContainer.style.marginTop = `${fixedBannerTopContainer.offsetHeight}px`; observer.disconnect(); // 停止观察 break; } } }); // 开始观察 fixedBannerTopContainer 的子节点变化 observer.observe(fixedBannerTopContainer, { childList: true, subtree: true }); // 初始检查 if (fixedBannerTopContainer.childElementCount > 0) { notFixedBannerTopContainer.style.marginTop = `${fixedBannerTopContainer.offsetHeight}px`; } if(header) { header.style.marginTop = '0'; } } if (isBoost) { fixedBannerTopContainer.style.zIndex = '1031'; if (boostHeader && boostHeader.classList.contains('header__fixed')) { boostHeader.style.marginTop = `${fixedBannerTopContainer.offsetHeight}px`; } else { notFixedBannerTopContainer.style.marginTop = `${fixedBannerTopContainer.offsetHeight}px`; } } }, 16); window.addEventListener('scroll', handleScroll); window.dispatchEvent(new Event('scroll')); } catch (error) { console.error('error', error); } } // 上报数据 async reportData(data) { // 如果是主题编辑器则不用处理 if(window.top !== window.self) { return; } this.xhr_.fetchJson(API.REPORT, { method: "POST", body: { placement_id: data.placement_id, event: data.event } }); } // 监听购物车变化事件dj.cartChange listenCartChange_() { SPZUtils.Event.listen(document, 'dj.cartChange', (event) => { this.fetchData_('cartChange'); }); } setupAction_() { this.registerAction('handleClose', (invocation) => { const data = invocation.args; const id = data.id; const announcement = document.querySelector(`#announcement-${id}`); announcement && SPZCore.Dom.removeElement(announcement); window.dispatchEvent(new Event('scroll')); }); this.registerAction('handleJumpLink', (invocation) => { const data = invocation.args; if(!data.show_url) return; data.url && window.open(data.url, data.open_new_window ? '_blank' : '_self'); this.reportData({ placement_id: data.id, event: REPORT_EVENT.CLICK }); }); } triggerEvent_(name, data) { const event = SPZUtils.Event.create(this.win, `${ TAG }.${ name }`, data || {}); this.action_.trigger(this.element, name, event); } isLayoutSupported(layout) { return layout == SPZCore.Layout.CONTAINER; } } SPZ.defineElement(TAG, SpzCustomAnnouncement);