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Ring Size Guide

Find your perfect fit with our easy, step-by-step methods.

How should a ring fit?

A ring that fits appropriately will slide over your knuckle with minimal friction and sit snugly on your finger without feeling too tight.

You should feel slight resistance but not need to apply too much force to take it on and off.

What to Do if You're in Between Ring Sizes

If you're in between ring sizes, we suggest sizing up rather than sizing down. Finger size can fluctuate throughout the day, and a ring that is too tight may not come over the knuckle easily — which can be painful. Additionally, there are simple, at-home ways to make a slightly loose ring feel tighter, but you'll need to consult a professional to size it up. Remember, if a half size doesn't feel quite right, contact us and we can craft a design in a quarter size to help you find the perfect fit. 

Let our Experts Help you

Let us take the guesswork out of sizing. For the most precise fit, we invite you to visit our studio for a personal ring fitting—an experience as thoughtful as the love it represents.To ensure the perfect moment, we often recommend sizing slightly up, as fingers naturally expand when warm or excited. And if the fit isn’t just right after she says “yes,” rest assured—every engagement ring from Cherish & Co comes with a complimentary resize within one year. Because love, like a ring, should feel just right.

Ring sizer

Ring Size Tips

  • Our dominant hands are generally slightly larger – measure the hand you plan to wear the ring on.    

 

  • Consider the design of your ring. Rings with wider bands will fit tighter. Plan to size up by at least a half size for chunky bands (>4mm) and size down accordingly for very thin designs (<1.3mm). Note that ring sizes are generally measured in millimeters (mm) and are not sized by inch.   

 

  • Ensure your body temperature is normal – fingers tend to shrink when cold and expand when hot.   

 

  • Fingers change size throughout the day based on the water we drink and the food we eat – the best time to measure is towards the middle or end of the day.  

 

  • If your knuckle is pronounced, you may want to measure both the knuckle and the base of the finger. Then, choose a size in between those measurements as rings need to fit over the knuckle but not be too loose or tight to wear comfortably.   

How to Measure an Existing Ring Size

Ring Size Conversion Chart

What you'll need:   

 

  • Printer & paper    

  • String, yarn, floss, or a thin strip of paper    

  • Pen or marker    

  • Ruler  

 

Steps:   

 

1. Cut a piece of string, yarn, floss, or thin strip of paper to at least three inches long.   

 

2. Wrap one end of the string around the base of the intended finger.

 

3. Using a pen or marker, mark where the end of the string overlaps with the rest.

 

4. Lay the string flat and use a ruler to measure the length between the end and your mark in millimeters.

 

5. Use the Ring Size Conversion Chart to match the millimeter length to the corresponding ring size.

Ring Size Chart

All of our rings are crafted in standard US sizes. View the chart below to see how US sizes map to finger circumference and convert to international sizes.

Engagement rings, wedding bands, and fashion rings all follow the same size format.

Ring Size Chart
  • How much does one usually spend on an engagement ring?
    There’s truly no one-size-fits-all answer—every couple is different, and so is every love story. While tradition often points to the “three months’ salary” guideline, the truth is that the right amount is what feels comfortable and meaningful to you. Some couples prioritise a statement piece, while others focus on sentiment, sustainability, or savings for their future. At Cherish & Co Diamonds, we believe your ring should reflect your values—not a price tag. Whether you’re working with a modest budget or ready to create something lavish, we’ll guide you in crafting a piece that’s as personal as your proposal.
  • What is the difference between an engagement ring and a wedding ring?
    An engagement ring is typically given during a proposal or when a couple decides to marry, while a wedding ring is exchanged during the ceremony itself, marking the formal union. Both are timeless symbols of love, promise, and lifelong commitment.
  • Do both partners wear engagement rings?
    Traditionally, women wear engagement rings, while whether men do so often depends on cultural customs, such as in some Indian communities —or personal preference.
  • How do I choose an engagement ring?
    The journey looks different for every couple, guided by your budget, lifestyle, and personal story. It begins with selecting the ring setting, size, metal, and diamond. You may also customise it further with meaningful engravings or add a touch of colour through gemstones. We invite you to seek inspiration, explore timeless or bold styles, or simply allow our experts to guide you through a thoughtful discovery phase—where your vision takes form, and your love story begins to sparkle.
  • How do I find my ring size?
    You may refer to our Ring Size Guide for simple tips and printable tools to measure your ring size at home.
  • How long will the resizing process take?
    Resizing typically takes approximately 3–4 weeks (excluding season periods). We'll keep you updated every step of the way. Once your ring is ready, we’ll reach out to schedule a collection appointment at our showroom.
  • What if I order the wrong ring size?
    At Cherish & Co Diamonds, we understand that sizing a ring (especially for a surprise) isn’t always easy. That’s why we offer unlimited complimentary resizing within ±2 sizes for one full year from the date of purchase, for all our bespoke rings. Kindly note that cue to the intricate nature of eternity bands, open bands, or alternative metals,engravings and other design restictions ; resizing may not always be possible. In such cases, we’ll explore the most suitable options with you. Your love story deserves nothing less than a perfect fit. Let us help you get it just right. You may book a ring resizing appointment here. Alternatively, if you have any questions, feel free to reach out to us here.
  • Does Cherish & Co offer half ring sizes?
    Yes! You can always order half-size rings to ensure you find the perfect fit. You can also request a design in a quarter size by contacting us via phone or email.
  • What happens when my ring is resized?
    To resize your ring to the perfect fit, our jewelers will add or remove a small strip of metal from the back of the band and solder it back together – you won't be able to tell it's been resized.
  • What is the average ring size for women?
    The average ring size for women is between size 5 and 7, though this can vary greatly.
  • What is the average ring size for men?
    The average ring size for men is between 8 and 10, though this can vary greatly.
  • Can your ring size change?
    Yes! Your finger size can change for a whole range of different reasons. For example, your finger size may change when you are pregnant. Weight gain or loss, certain health conditions, and even changes in climate can all contribute to a change in finger size.
  • How do you secretly get ring size?
    When it comes to crafting something as intimate as a bespoke ring, every detail matters—including the fit. We don’t recommend guessing or defaulting to standard sizes. Instead, observe and measure thoughtfully. Try discreetly measuring a ring they already wear on their ring finger, or gently enlist the help of a close friend or family member who may already know their size. You can also bring a ring they wear to us in person—we’ll help estimate the size as accurately as possible. If you're unsure, we always suggest erring slightly larger, just enough to slip on during the proposal moment. And if it’s not quite perfect? Don’t worry—we offer unlimited complimentary resizing within ±2 sizes for one year after your bespoke ring is complete. In the world of love and detail, even sizing is an act of intention. Let us help you get it just right.
  • When you shouldn't resize a ring that is too big?
    It’s natural for ring size to fluctuate. Understanding these changes can help you decide whether you need a temporary fix or permanent resizing. You shouldn’t permanently resize a ring for these circumstances: Weather and temperature fluctuations significantly affect finger size. Cold temperatures cause fingers to shrink as blood vessels constrict, while heat causes them to expand. This is why your ring might feel tighter in the afternoon but looser in the morning or during winter months. Time of day variations occur naturally. Fingers are typically smaller in the morning and gradually swell throughout the day due to fluid accumulation. A ring that fits perfectly in the afternoon might be loose when you wake up. Water retention/bloating happens due to sodium intake, hormone changes, or even air travel. These temporary changes can make your ring feel tighter or looser depending on your body's current state. Hormonal changes during menstruation, pregnancy, or due to medication can cause fingers to swell or shrink temporarily. This is why some women notice their rings fitting differently at certain times of the month. Weight fluctuations, even minor ones, can quickly affect finger size. Even losing or gaining just a few pounds can change how your ring fits, especially if your hands tend to show weight changes quickly. High sodium meals cause temporary water retention that makes fingers swell. After eating salty foods, you might notice your ring feels tighter than usual, but this effect typically resolves within a day. Medications can sometimes cause fluid retention as a side effect, temporarily changing your finger size. Consult your doctor if you notice persistent changes related to new medications.
  • What is the maximum a ring can be resized?
    Generally, rings can be sized up or down by about two sizes. Beyond that range, the ring's structure and design may be compromised. For significant size changes, it may be better to have the ring remade entirely to ensure structural integrity and design preservation.
  • Can all metals be resized?
    Most common metals used in rings like gold, silver, and platinum can be easily resized. Other metals, such as tungsten, cobalt, and titanium, can also be resized but require more advanced techniques and tools. However, some metals may not be able to be fully resized due to their hardness or strength.
  • How often can a ring be resized?
    Most rings can be resized several times throughout their lifetime. However, frequent resizing can weaken the metal over time, potentially affecting the ring's structural integrity. It's best to get the size right the first time and only resize when absolutely necessary.
  • Does resizing weaken a ring?
    Resizing a ring, when done professionally, should not weaken the ring if the correct techniques and tools are used: Soldering: The ring is carefully soldered back together, and the joint is reinforced to ensure durability. Metal Integrity: A skilled jeweler will take care to maintain the ring’s structural integrity during the resizing process. It’s important to note that frequent resizing or poorly executed work can weaken the ring over time.
  • How much does professional resizing cost?
    The cost of resizing a ring can vary widely depending on several factors: Materials: Rings made from softer metals like gold can be less expensive to resize than harder metals like platinum. Complexity of Design: Rings with intricate designs, multiple stones, or engravings may require more work, increasing the cost. Location: The cost can also vary depending on your location and the jeweler’s expertise. On average, resizing a ring can cost anywhere from $50 to $200. However, more complex cases can cost significantly more. At Cherish & Co Diamonds, however, we believe the perfect fit should come at no extra cost—especially for something this meaningful. That’s why we offer unlimited complimentary resizing within ±2 sizes for 1 year from the time you receive your bespoke piece. (read more in our T&Cs)
  • How tight should a ring be?
    A well-fitted ring should slide over your knuckle with slight resistance and feel snug (but not uncomfortable) on your finger. It shouldn’t spin freely, nor should it require force to remove.
  • Can jewelers tell the difference between natural and lab created diamonds?
    Most jewelers cannot tell the difference between lab created and natural diamonds without specialized tools. Gemologists use advanced equipment, like UV light and high-magnification microscopes, to detect growth characteristics unique to lab diamonds.
  • What are lab grown diamonds made of?
    Lab grown diamonds are composed almost entirely of carbon, arranged in a crystalline structure identical to that of natural diamonds. This structure gives diamonds their signature hardness, brilliance, and light-reflecting properties.
  • Can you tell if a diamond is lab grown?
    No — to the naked eye, lab-grown and natural diamonds share the same physical, chemical, and optical properties. Only trained gemologists using specialized equipment, can identify subtle differences. Under magnification, they examine growth patterns, internal features, or fluorescence unique to lab-grown diamonds created through CVD or HPHT methods. Many lab-created diamonds are also laser-inscribed to indicate their origin, though this isn’t always visible without proper tools.
  • Are lab grown diamonds as hard as natural diamonds?
    Yes, lab grown diamonds are as hard as natural diamonds, with a rating of 10 on the Mohs hardness scale. This hardness makes both lab grown and natural diamonds highly resistant to scratching and ideal for long-lasting jewelry.
  • Are lab grown diamonds as good as real diamonds?
    Lab grown diamonds match natural diamonds in brilliance, durability, and quality. Created in carefully controlled environments, they offer remarkable consistency with fewer impurities. This makes them an excellent option for those seeking a genuine, high quality diamond at a more accessible price.
  • How do you authenticate lab grown diamonds?
    Lab grown diamonds are authenticated through certification and advanced testing techniques, exactly the same as it's natural counterparts. Gemological laboratories like GIA and IGI use specialized equipment to analyze the diamond's physical, chemical, and optical properties. They also identify growth patterns, and any treatments applied during manufacturing. Certification reports from these laboratories confirm the diamond's authenticity and quality.
  • Which of the 4 C's is the most important in diamonds?
    Cut is generally considered the most important of the 4 C's because it has the greatest impact on a diamond's brilliance and overall appearance. However, the "most important" C is ultimately a matter of personal preference.
  • What is the best combination of the 4 C's of diamonds?
    There's no single "best" combination, as it depends on individual preferences and budget. However, for maximum visual appeal, many experts recommend prioritizing excellent cut, color in the D-E range, clarity in the VVS1-VS2 range, and the highest carat weight your budget allows. This combination typically yields a diamond that appears colorless to the naked eye, has no visible inclusions, displays excellent brilliance, and maximizes size.
  • What is a certified diamond?
    Certified diamonds are diamonds certified by independent institutions such as the Gemological Institute of America (GIA), the International Gemological Institute (IGI), HRD Antwerp, and the Gem Certification & Assurance Lab (GCAL), American Gem Society (AGS) and European Gemological Laboratories (EGL). To grade a diamond, professionals use equipment to assess cut, color, clarity, and carat. They may also plot a diagram of its clarity characteristics and a graphic representation of its proportions.
  • What is a diamond?
    A diamond is crystallized carbon formed under extreme pressure and temperature in a lab or deep within the Earth over billions of years. It ranks as the hardest known substance and valued for its exceptional hardness (10 on the Mohs scale), brilliance, and fire.
  • What makes a diamond sparkle?
    A diamond's sparkle results from three optical effects: Brilliance: The white light reflected from the interior and exterior of the diamond Fire: The rainbow flashes produced when light is dispersed into its spectral colors Scintillation: The pattern of light and dark areas and the flashes of light when the diamond, light source, or observer moves These effects depend primarily on the diamond's cut quality. A well-cut diamond has precise angles and proportions that maximize light return through the crown (top) of the diamond. When light enters the diamond, it bounces off the internal facets and returns through the top, creating the characteristic sparkle. A poor cut allows light to escape through the bottom or sides, reducing sparkle significantly.
  • What do diamonds represent?
    Diamonds are said to symbolize strength, love, and health in ancient lore. These representations have made diamonds meaningful gemstones for significant life moments and celebrations.
  • How hard are diamonds?
    Diamonds are the hardest known substance found on Earth. They are so hard that they rank at the highest hardness level (a 10) on the Mohs scale. Therefore, diamonds are ideal for everyday wear, making them perfect as center gems in jewelry as well as engagement rings.
  • How much does a diamond cost?
    The price of a diamond is shaped by its rarity and quality — including its cut, colour, clarity, and carat weight. Stones with exceptional grades or larger sizes are rarer, and naturally command a higher price. Lab grown diamonds offer the same stunning beauty and brilliance as mined ones, but with greater accessibility and value, thanks to the controlled environments in which they are created.
  • What are the diamond grades?
    Diamonds are graded on a scale developed by the Gemological Institute of America (GIA) that analyzes cut, color, clarity, and carat. These 4 C's are universally acknowledged as the accepted standard in describing and determining the quality of any diamond: Cut: Excellent, Very Good, Good, Fair, Poor (or Ideal, Very Good, Fair, Poor if you have an IGI certificate) Color: D-Z, with D being colorless and Z showing noticeable yellow or brown tint Clarity: FL (Flawless), IF (Internally Flawless), VVS1-VVS2 (Very, Very Slightly Included), VS1-VS2 (Very Slightly Included), SI1-SI2 (Slightly Included), I1-I3 (Included) Carat: Measured by weight, where 1 carat = 0.2 grams
  • What is an enhanced diamond?
    Enhanced diamonds are those that have undergone specific treatment to improve either their clarity or their color. Cherish & Co. Diamonds do not carry enhanced diamonds.
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Singapore 178905

+65 8925 3512

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