Fine Jewellery Guides & Inspiration | Jacob Mercari
Diamond Tennis Necklace vs Solitaire Pendant: Which Should You Choose?
A tennis necklace creates a line of sparkle, while a solitaire pendant draws attention to one diamond. Compare their look, fit and buying considerations to choose the necklace you will love wearing.
The Most Expensive Natural Fancy Colour Diamonds and What Makes Them So Valuable
Natural fancy colour diamonds combine the rarity of a diamond with a colour formed by nature. The most remarkable examples have sold for tens of millions of dollars at auction. Their prices reflect more than carat weight: colour, rarity, clarity, cut, provenance and the strength of collector demand all contribute.
How Fancy Coloured Diamonds Are Graded: Natural and Lab-Grown
A fancy coloured diamond is valued for the colour it shows face-up. Whether it is natural or laboratory-grown, a gemmological laboratory examines the diamond and documents its colour and identifying characteristics. The grading process helps you understand what you are shopping for, how the colour is described, and whether the diamond’s colour is natural, treated, or associated with laboratory growth.
What Does CTW Mean in Diamond Jewellery? A Simple Guide to Carat Total Weight
CTW means carat total weight the combined weight of all diamonds in a piece or pair. Learn how to compare CTW in diamond studs, tennis bracelets and pendants.
Design Your Own Engagement Ring Online in Canada
An engagement ring should feel personal. With the Jacob Mercari Engagement Ring Builder, you can explore settings, choose a centre stone and see how your choices shape the finished ring all from home.
You can take your time comparing designs and prices online. If you would like a second opinion, our Toronto team is available to help in person or virtually.
How Much Does a Custom Engagement Ring Cost in Toronto?
A custom engagement ring in Toronto can range from a few thousand dollars to significantly more depending on the centre stone, setting, metal and design. Learn what affects the price and how to create a beautiful ring within your budget.
Cathedral vs. Non-Cathedral Engagement Rings: Which Setting Is Right for You?
Cathedral and non-cathedral engagement rings can look similar from above but feel very different from the side. Learn how each setting affects height, comfort, wedding-band fit, diamond presence and everyday wear.
How to Choose a 1 Carat Lab-Grown Diamond Pendant Necklace
One carat, six beautiful shapes. Discover how diamond shape, bezel setting and gold colour can help you choose the perfect lab-grown diamond pendant.
How to Choose Diamond Hoop Earrings: Size, Carat Weight, Setting and Style
Diamond hoops can be subtle enough for every day or bold enough for a special occasion. This guide explains how diameter, total carat weight, setting, closure and metal affect the way a pair looks, feels and wears.
How to Buy an Engagement Ring Online in Canada: What to Look for Before You Order
At Jacob Mercari, we help couples across Canada create engagement rings online while still providing the guidance and expertise of a personal jeweller.
Here are the most important things to consider before buying an engagement ring online.
5 Fine Jewellery Essentials You’ll Wear for Years
Instead of filling your jewellery box with pieces you only wear once in a while, think of fine jewellery the way you might think about a great wardrobe: start with a few beautiful essentials, choose pieces that work together, and invest in designs you will genuinely enjoy wearing.
1 Carat vs 1.5 Carat vs 2 Carat Engagement Rings: Which Size Is Right for You?
Trying to choose between a 1, 1.5 and 2 carat engagement ring? Compare how each size looks, how shape and setting affect its appearance, and which option best suits your style, lifestyle and budget.












