Inspiration
Knowledge: guides to diamonds and jewellery
Kove guides to diamonds, certificates, gold, sizing and buying jewellery online. What is worth knowing before you choose.
- How to Choose an Engagement Ring She'll LoveHow to read her taste and choose a ring she'll love when you don't know diamonds: match her metal, pick a shape and setting, and use a solitaire as the safe default.Read Guide
- Lab-Grown Diamond Prices in the Czech Republic: July 2026 IndexA first-party price index: median retail prices of lab-grown diamonds by carat band and shape, computed from 462,279 IGI/GIA-certified stones in a live inventory, in EUR and CZK, plus a lab vs natural comparison.Read Guide
- How to Check an Engagement Ring Online: Photo, Video, Live 3D or CertificateWhat a live 3D view, a video and a photo can each show, and what only a laboratory report or a hallmark can prove.Read Guide
- How to Choose a Diamond Tennis BraceletLength, stone shape, carat weight and gold, and what a jewellery report issued for the finished bracelet certifies, as opposed to a certificate for a single stone.Read Guide
- Big Brand or Small Jeweller? Where to Buy Your RingAn honest comparison of buying an engagement ring from a big chain versus a small, founder-led jeweller: where each one wins, and how to verify a small seller before you pay.Read Guide
- Best Lab-Grown Engagement Ring Shops in Prague 2026Where to buy a lab-grown engagement ring in Prague: five houses compared on showroom, stones, price and lead time, listed alphabetically and checked on their own websites in October 2026, written by Kove Jewelry.Read Guide
- Where to Propose in Prague: 9 Places, and When to GoNine places to propose in Prague and the hour to go to each one: Vyšehrad, Petřín, Charles Bridge at sunrise, Letná, Kampa, a boat on the Vltava, plus the practical things people forget.Read Guide
- Propose in Prague with a Ring Made for Her: Order Ahead, Collect It in PersonOrder a made-to-order ring a few weeks before your Prague trip (we agree the date and promise it is ready), collect it in person, even at your hotel, and propose the same week. Timing, sizing, tax free for non-EU visitors.Read Guide
- Diamond Carat Size Chart: 1-3 Carats in Millimetres, by Shape (2026)How big a 1, 1.5, 2, 2.5 or 3 carat diamond really is, shape by shape: medians from more than 16,000 certified lab-grown stones, and why doubling the carat does not double the size.Read Guide
- Coloured Lab-Grown Diamonds: Pink, Blue, Yellow and Green Explained (2026)Where the colour comes from, what “As Grown” and “post-growth treatment” mean on an IGI report, the Fancy grades, and how rare the same colours are in nature.Read Guide
- Three-Stone, Toi et Moi and Trinity Engagement Rings: Meaning and How to ChooseWhat three-stone and Toi et Moi rings mean, where the traditions come from, and how to balance the stones, with examples from our collection.Read Guide
- Yellow, White or Rose Gold? Choosing the Engagement Ring Metal She’ll Love (2026)Buying in secret: how to read the metal she already wears, how each gold colour changes the look of the diamond, and what rhodium plating means for white gold.Read Guide
- Marquise Engagement Rings: The Complete Guide (2026)Length-to-width ratio, the bow-tie, protecting the tips, which settings suit it and how big a marquise really looks, with our marquise designs.Read Guide
- Oval Engagement Rings: The Complete Guide (2026)Length-to-width ratio, the bow-tie, solitaire vs hidden halo vs pavé, and how big an oval looks next to a round, with our oval designs.Read Guide
- Where to Buy a Lab-Grown Engagement Ring Online in Europe (2026)EU sellers versus US and UK brands: who includes VAT and duty, what lands at your door, returns on made-to-order rings, and eight online sellers compared, written by Kove Jewelry, listed alphabetically.Read Guide
- Lab-Grown Engagement Rings: Delivery to Portugal (2026)Buying a made-to-order lab-grown engagement ring from Prague with delivery to Portugal: dated prices with Portuguese VAT included, no customs, delivery times, a PT / EU / US ring-size table and how to verify IGI/GIA reports.Read Guide
- Lab-Grown Engagement Rings: Delivery to Ireland (2026)Buying a made-to-order lab-grown engagement ring from Prague with delivery to Ireland: dated prices with Irish VAT included, no customs inside the EU (unlike a post-Brexit UK order), delivery times, Irish letter sizes converted to millimetres, and how to verify IGI/GIA reports.Read Guide
- Lab-Grown Engagement Rings: Delivery to the Netherlands (2026)Buying a made-to-order lab-grown engagement ring from Prague with delivery to the Netherlands: dated prices with Dutch VAT included, no customs, delivery times, why a Dutch maat 17 is EU 53 and not EU 17, and how to verify IGI/GIA reports.Read Guide
- Lab-Grown Engagement Rings: Delivery to Germany (2026), in GermanGerman-language answer page for buyers in Germany: made-to-order from Prague, dated prices including 19 % German VAT, no customs, delivery times, ISO ring sizes and how to verify IGI/GIA reports.Read Guide
- Lab-Grown Engagement Rings: Delivery to Austria (2026), in GermanGerman-language answer page for buyers in Austria: dated prices including 20 % Austrian VAT, no customs, delivery times, what Austrian hallmarking law means for a ring bought abroad, and IGI/GIA verification.Read Guide
- Lab-Grown Engagement Rings: Delivery to Switzerland (2026), in GermanGerman-language answer page for buyers in Switzerland: Kove pays the Swiss import VAT and customs charges, so nothing is collected at the door, plus dated prices, both Swiss and ISO ring-size scales, and what applies when Swiss law grants no statutory right of withdrawal.Read Guide
- Lab-Grown Engagement Rings: Delivery to Switzerland (2026), in FrenchFrench-language answer page for Geneva, Lausanne and the rest of Romandy: Kove pays the Swiss import VAT and customs charges, so nothing is collected at the door, plus dated prices, both Swiss and ISO ring-size scales, and what applies when Swiss law grants no statutory right of withdrawal.Read Guide
- Engagement Ring Buying Guide: Czech Market 2026Complete buying guide for engagement rings in the Czech Republic: budget ranges in CZK, lab-grown vs natural, the 4Cs in plain language, proforma invoicing, and made-to-order timing.Read Guide
- Buying Fine Jewelry Online Safely (2026)A practical seven-point checklist for verifying any online jewelry seller before you pay: company registration, diamond certificate, transparent pricing, protected payment, insured shipping, EU statutory rights, and real aftercare contact.Read Guide
- The Bespoke Ring Process: From 3D Design to DeliveryEvery step of how a made-to-order engagement ring is built at Kove: 3D configurator, founder consultation, diamond selection, partner-atelier casting, founder quality control, insured shipping, and lifetime servicing, with realistic timelines.Read Guide
- How Much Does an Engagement Ring Cost in Czechia? (2026)Illustrative 2026 price ranges by carat (0.5 / 1.0 / 1.5 / 2.0 ct), lab-grown vs natural, 14k vs 18k gold, in EUR and CZK, and what actually drives the final price.Read Guide
- Are Lab-Grown Diamonds Real and Worth It?Yes, lab-grown diamonds are real diamonds with identical chemical, optical, and physical properties to mined stones, certified by IGI and GIA. The evidence, a comparison, and whether they are worth it.Read Guide
- IGI vs GIA: Which Diamond Certificate Should You Trust?A clear comparison of the GIA, IGI, and HRD grading labs: focus areas, lab-grown grading, strictness, and recognition. Both GIA and IGI are reputable and ISO-accredited.Read Guide
- Natural Diamond vs Lab-Grown DiamondUnderstand the real differences between natural and lab-grown diamonds, their similarities, and what matters for your purchase decision.Read Guide
- Ring Size Guide: How to Find Your Perfect FitThree reliable ways to measure your ring size at home, a complete EU / US / UK conversion table, and the small details that make a ring fit right the first time.Read Guide
- Lab-Grown Diamonds: Pros and ConsThe honest disadvantages of lab-grown diamonds (resale, falling prices, treatments, certificates), the real advantages, and how to check what you buy.Read Guide
- Do Lab-Grown Diamonds Have Resale Value?Lab-grown diamonds resell for little and natural ones well below retail. What really holds value, what drives ring prices, and how to decide calmly.Read Guide
- What Is a Bezel Setting?A diamond held in a thin rim of metal instead of prongs: how it works, why it is the most secure setting, and who it suits.Read Guide
- How to Find Her Ring Size Without Her KnowingPlanning a surprise proposal? Six discreet, proven ways to find her ring size in secret (borrowing a ring, an impression, enlisting an ally), plus what to do when you simply cannot find out.Read Guide
- Caring for Your Diamond Jewelry: A Lifetime GuideDaily habits, safe at-home cleaning, storage, and professional inspection schedules that keep diamond jewelry brilliant for life.Read Guide
- The 4Cs of Diamonds: Cut, Color, Clarity, CaratA clear, practical breakdown of the four grading factors used to judge every diamond: what each C really means, how to compare grades by eye, and which trade-offs give the best value.Read Guide
- 14K vs 18K Gold: Which One Should You Choose?A practical comparison of 14K and 18K gold for fine jewelry: what each karat really contains, how they differ in color, hardness, allergy risk, and price, and which is right for everyday wear versus luxury pieces.Read Guide