Jewelry Guide

Understanding Carat Size

What to Know Before You Buy

When shopping for fine jewelry, especially diamond or gemstone pieces, carat size is one of the most important factors to consider. But what does "carat" really mean, and how does it affect the look, value, and wearability of your jewelry? Let’s break it down.

What is a Carat?

A carat (ct) is a unit of weight used to measure diamonds and gemstones. One carat is equal to 0.2 grams (200 milligrams). The term originates from the carob seed, which was historically used as a standard for weighing precious stones.

Carat Weight vs. Size

Many buyers assume that a higher carat weight always means a bigger-looking stone, but that’s not entirely true. The visual size of a gemstone is also affected by:

  • Cut: A well-cut diamond or gemstone reflects more light, making it appear larger than a poorly cut stone of the same weight.
  • Shape: Certain shapes (like oval, marquise, and pear) create the illusion of a larger stone compared to round or cushion cuts of the same carat weight.
  • Setting: A halo or bezel setting can enhance the perceived size of a gemstone.

Carat Size Guide

Here’s a general guide to how different carat weights translate to diameter in millimeters for round diamonds (other shapes may vary):

Carat Weight

Approx. Diameter (mm)

0.25 ct. – 4.1 mm
0.50 ct. – 5.1 mm
0.75 ct. – 5.8 mm
1.00 ct. – 6.4 mm
1.50 ct. – 7.4 mm
2.00 ct. – 8.1 mm
3.00 ct. – 9.4 mm

Note: The actual appearance can vary depending on cut and shape.

Bigger Isn’t Always Better

While a higher carat weight often increases the value of a gemstone, bigger doesn’t always mean better. A well-cut, high-quality stone of a lower carat weight can outshine a larger, poorly cut stone. Consider your budget, lifestyle, and personal preferences when choosing the right carat size.

Choosing the Right Carat Size for You

  • If you want maximum sparkle, focus on cut quality over carat weight.
  • If you prefer a larger look on a budget, consider shapes like oval, pear, or marquise, which appear bigger for their weight.

If you're looking for an everyday piece, a lower-carat option may be more practical for durability and comfort.

Final Thoughts

At Corielle, we believe jewelry should reflect your unique style and story. Whether you’re looking for a delicate, everyday piece or a bold statement ring, understanding carat size can help you choose a piece that’s just right for you.

Need help selecting the perfect carat size? Contact our jewelry experts for personalized guidance.

Understanding Necklace Size

Choosing the Right Necklace Length

Selecting the right necklace length can enhance your look, complement your outfit, and ensure a comfortable fit. Whether you're shopping for an everyday piece or a statement necklace, understanding different lengths can help you make the best choice.

Standard Necklace Lengths and How They Fit

Necklaces come in a variety of lengths, each sitting differently on the neckline. Here’s a breakdown of the most common lengths and how they wear:

Collar necklaces (14 inches) sit tightly around the neck and are best suited for open-neck or off-shoulder outfits. A choker (16 inches) rests just at the base of the neck, making it a timeless and versatile option. The princess length (18 inches) falls just below the collarbone and is one of the most common and flattering choices.

For a slightly longer option, the matinee length (20-24 inches) reaches the chest area, making it perfect for layering and work attire. A more dramatic choice, the opera length (28-36 inches) falls below the bust and can be worn as a single strand or doubled for a layered effect. Finally, the rope length (36 inches and longer) extends past the waist and is often wrapped multiple times to create a stylish, multi-layered look.

How to Choose the Right Length

1. Consider Your Neckline: Different necklaces pair well with different outfits. For example:

  • V-neck tops look best with a Princess (18”) or Matinee (20-24”) necklace.
  • Crew necks work well with a Choker (16”) or a longer Opera (28-36”) necklace.
  • Off-shoulder styles are beautifully complemented by Collar (14”) or Choker (16”) necklaces.

2. Face Shape Matters:

  • Round faces benefit from longer necklaces (20”+) to elongate the appearance.
  • Heart-shaped faces are balanced by shorter chokers (16”) to soften the chin area.

3. Body Type & Proportion:

  • A petite frame is flattered by shorter lengths (16-18”).
  • Taller or fuller figures can pull off longer lengths (20”+).

4. Layering for Style:

  • Mix shorter and longer lengths for a trendy, stacked effect.
  • Use varied textures and pendant sizes to create depth.

Find Your Perfect Necklace at Corielle

At Corielle, we offer handcrafted fine jewelry in various lengths to suit every occasion and style. Need help choosing the right fit? Contact our team for expert guidance.

Understanding Ring Sizes

Finding Your Perfect Ring Size

Choosing the right ring size is essential for comfort and style. Whether you're buying a ring for yourself or as a gift, understanding ring sizing can help ensure the perfect fit.

How Ring Sizing Works

Ring sizes are measured in millimeters based on the inner circumference of the ring. In the U.S. and Canada, sizes typically range from size 3 (14.1mm diameter) to size 13 (22.2mm diameter), with half and quarter sizes available for a more precise fit.

Ring Sizes

Size 3 – 14.1mm diameter
Size 4 – 14.9mm diameter
Size 5 – 15.7mm diameter
Size 6 – 16.5mm diameter
Size 7 – 17.3mm diameter
Size 8 – 18.1mm diameter
Size 9 – 19.0mm diameter
Size 10 – 19.8mm diameter
Size 11 – 20.6mm diameter
Size 12 – 21.4mm diameter
Size 13 – 22.2mm diameter

How to Measure Your Ring Size at Home

1. Use a Ring You Already Own

  • Take a well-fitting ring and measure the inside diameter with a ruler.
  • Compare the measurement to the size chart above.

2. Use a Piece of String or Paper

  • Wrap a thin strip of paper or string around your finger.
  • Mark where the ends meet and measure the length in millimeters.
  • Use the chart to find your corresponding ring size.

3. Consider a Printable Ring Sizer

  • Some jewelers provide a printable ring sizer with measured circles for easy matching.

Tips for Getting the Most Accurate Size

  • Measure your finger at the end of the day when it's slightly larger.
  • Avoid measuring when your hands are cold, as fingers shrink in lower temperatures.
  • If you're between sizes, opt for the larger size for comfort, especially for wider rings.
  • Rings with thicker bands tend to fit snugger, so consider sizing up slightly.

Resizing & Finding the Perfect Fit

If your ring doesn’t fit perfectly, Corielle offers resizing options for select styles. Not sure about your size? Our team is happy to assist you with expert guidance.

Downloads

Carat Size Chart

Download

Necklace Size Chart

Download

Ring Size Chart

Download

Jewelry Care

At Corielle, we design jewelry to last a lifetime and beyond. Proper care ensures your treasured pieces maintain their beauty and integrity. Follow this guide to keep your jewelry in pristine condition.

General Care Tips

Store Safely:

Use a soft pouch, individual jewelry box, or a designated section in your jewelry organizer to prevent scratches and tangling.

Keep pieces separate to avoid metal or gemstone abrasion.

Avoid Chemicals:

Remove jewelry before swimming, bathing, or cleaning, as chlorine, saltwater, and household chemicals can dull or damage the metal and gemstones.

Apply cosmetics, lotions, and perfumes before putting on your jewelry.

Wear with Care:

Remove jewelry during activities like exercise, gardening, or heavy lifting to avoid scratches, dents, or breakage.

Avoid wearing delicate pieces while sleeping to prevent stress on prongs and chains.

Metal Care

Gold (Yellow, White, and Rose):

Clean gently with warm water and mild dish soap. Use a soft-bristle toothbrush for crevices, then pat dry with a lint-free cloth.

Sterling Silver:

Polish regularly with a silver cloth to remove tarnish. Store in an anti-tarnish pouch or airtight container. Avoid prolonged exposure to air and moisture.

Platinum:

Though durable, platinum can scratch over time. Polish periodically and clean with warm soapy water.

Gemstone Care

Diamonds:

Clean diamonds with warm soapy water and a soft brush. Avoid harsh chemicals that could weaken the settings.Clean diamonds with warm soapy water and a soft brush. Avoid harsh chemicals that could weaken the settings.

Gemstones (Emeralds, Sapphires, Rubies, etc.):

Gently clean with a damp cloth and mild soap. Avoid ultrasonic cleaners, especially for porous or treated stones.

Pearls:

Wipe with a soft cloth after each wear to remove oils and moisture. Store in a breathable pouch or lined box, away from hard surfaces and other jewelry.

Opals and Other Soft Stones:

Avoid exposure to extreme temperatures or direct sunlight. Clean with a damp cloth—no soaking.

Chain and Clasp Care

Diamonds:

Regularly inspect chains and clasps for signs of wear or weakness.

Gemstones (Emeralds, Sapphires, Rubies, etc.):

If a chain becomes kinked, do not force it straight; have it professionally repaired.

Cleaning at Home

DIY Solution:

Mix warm water with a few drops of mild dish soap. Soak your jewelry for a few minutes, then gently brush with a soft toothbrush. Rinse and pat dry.

Avoid Abrasives:

Never use abrasive cleaners, scouring pads, or toothpaste on your jewelry—they can scratch metals and gemstones.

When to Seek Professional Care

Polishing & Maintenance:

Visit a jeweler annually for a professional cleaning and inspection of prongs, clasps, and settings.

Repairs:

If you notice a loose stone, broken clasp, or other issues, stop wearing the piece and contact us for repair services.

Special Tips for Heirloom Jewelry

Handle with extra care, as older pieces may have fragile settings.

Consider professional restoration or resetting to preserve its legacy.