Ring Guide
Evergreen guides on prices, choosing, the 4Cs, sizing and budget for engagement and wedding rings.

The Complete Guide to Engagement Rings | Price, How to Choose, the 4Cs, Sizing & Timeline
The whole picture of choosing an engagement ring in one place. Price and budget, the diamond 4Cs, design and brand, sizing, and the purchase timeline, with links to each detailed guide.
Read![How Much Does an Engagement Ring Cost? Setting Your Budget and Price Breakdown [2026 Edition]](/assets/img/brand/prima-porta/prima_ai_yoko_1.webp)
How Much Does an Engagement Ring Cost? Setting Your Budget and Price Breakdown [2026 Edition]
The average price range for an engagement ring setting is mostly between ¥130,000 and ¥200,000 (median around ¥185,000). We break down pricing by center diamond, explain how to set your budget, and share tips for keeping costs down.
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What Are the Diamond 4Cs? Choosing the Diamond for an Engagement Ring
A clear explanation of the 4Cs (Carat, Color, Clarity, Cut) — the standard for choosing an engagement ring's diamond — along with tips for allocating your budget.
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The Complete Guide to Wedding Rings | How to Choose, Materials, Sizing, Budget & Timeline
The whole picture of choosing a wedding ring in one place. Material (metal), design and comfort, sizing, budget, and the purchase timeline, with links to each detailed guide.
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The Complete Wedding Ring Selection Guide | 5 Steps for No Regrets
How to choose a wedding ring in 5 steps: material, width, design, lifestyle, and stacking, with points to confirm when trying on.
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The Difference Between Platinum and Gold | Choosing the Metal
Comparing the metals for wedding and engagement rings (platinum vs. gold) by color, durability, price, and how they flatter the skin, with points for choosing.
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The Complete Guide to Choosing a Brand | Find Yours by Taste, Budget & Comparison
Choosing a bridal ring brand explained along three axes: taste, budget, and stores. How to narrow down using taste categories, budget, and the comparison chart, with links to each detailed guide.
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Bridal Rings by Budget | A Quick Brand Chart by Price Range
A quick brand chart by price range for choosing engagement and wedding rings by budget. Organized from under 100,000 to 200,000 yen and up, based on the lowest listed prices.
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Bridal Rings by Taste | A Brand Guide from Your Preferences
Cute, elegant, natural, Japanese-modern, Hawaiian and more — bridal ring brands organized by taste, so you can find your destined ring from your preferences.
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How to Measure Ring Size (Japanese "Go") | Checking at Home
Learn how to measure your finger's circumference with a paper strip to estimate your ring size. We also cover changes due to swelling or seasons, points to watch for with thicker knuckles, and useful resizing tips for choosing a wedding ring.
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Engagement & Wedding Rings: Purchase Steps and Schedule
The flow from choosing a ring to receiving it, and a guide to how long each stage takes, including a count-back schedule to be ready for a proposal or wedding.
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