Sapphire Tennis Bracelet 4mm

$99 $69

Sapphire Tennis Bracelet 4mm

$99 $69
Size:
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The Sapphire Tennis Bracelet 4mm is a sapphire tennis bracelet for men: one unbroken line of deep navy-blue cubic zirconia, round brilliant-cut and set stone by stone in silver-tone rhodium-plated prongs, closing with a box clasp and a double safety latch. It has the color of sapphire, but it is not sapphire: the stones are lab-created CZ in sapphire blue.

Sapphire blue is the deep, saturated blue that royalty and the church favored for centuries, darker than royal blue and richer than navy. As a sapphire blue bracelet set in bright silver tone, it reads cool and serious, the darkest and most formal blue in the line, and unlike a pale stone it looks right in every season. On a man's wrist it sits beside a navy suit, grey, white, and denim, and next to a steel watch with a blue dial.

No guessing on size. Many shops sell tennis bracelets by chain length and leave the math to you; Caligio sizes are wrist sizes with the fit already built in. Small fits wrists up to 6.8 inches, Medium up to 7.2, Large up to 8. Medium fits most men, which also makes it an easy gift.

Care for it like fine jewelry: off before the shower, the pool, and the gym, on after perfume, lotion, and sunscreen, and the blue stays deep and the finish bright. Nickel-free and lead-free, gift-boxed, designed in Los Angeles. It also comes in gold and on a black band. The clear-stone version is the Ice Tennis Bracelet 4mm, and the full line lives in the Tennis Bracelet collection.

Check more in: NEW 2026 Collection

The Sapphire Tennis Bracelet 4mm is a sapphire tennis bracelet for men: one unbroken line of deep navy-blue cubic zirconia, round brilliant-cut and set stone by stone in silver-tone rhodium-plated prongs, closing with a box clasp and a double safety latch. It has the color of sapphire, but it is not sapphire: the stones are lab-created CZ in sapphire blue.

Sapphire blue is the deep, saturated blue that royalty and the church favored for centuries, darker than royal blue and richer than navy. As a sapphire blue bracelet set in bright silver tone, it reads cool and serious, the darkest and most formal blue in the line, and unlike a pale stone it looks right in every season. On a man's wrist it sits beside a navy suit, grey, white, and denim, and next to a steel watch with a blue dial.

No guessing on size. Many shops sell tennis bracelets by chain length and leave the math to you; Caligio sizes are wrist sizes with the fit already built in. Small fits wrists up to 6.8 inches, Medium up to 7.2, Large up to 8. Medium fits most men, which also makes it an easy gift.

Care for it like fine jewelry: off before the shower, the pool, and the gym, on after perfume, lotion, and sunscreen, and the blue stays deep and the finish bright. Nickel-free and lead-free, gift-boxed, designed in Los Angeles. It also comes in gold and on a black band. The clear-stone version is the Ice Tennis Bracelet 4mm, and the full line lives in the Tennis Bracelet collection.

Sapphire color, not sapphire stone

The stones are cubic zirconia in sapphire blue, lab-created and cut with round brilliant facets. Sapphire names the color here, not the material. A line of natural blue sapphires costs many times more, and natural stones vary from inky to pale within one bracelet; lab-made stones hold the same deep, even blue from one end of the line to the other.

Why deep blue works on a man's wrist

Deep blue is the color men already trust most: the navy suit, the dark denim, the blue dial. On the wrist it reads as serious rather than decorative, and it is a colored stone that looks at home with a tailored jacket. Against silver-tone rhodium the blue turns crisp and cool, the most formal piece in the colored line.

The clasp is the security

A tennis bracelet has nothing to catch it if the closure fails: no safety chain, no elastic, no cord. This one closes with a box clasp and a double safety latch. The tongue clicks into the box, then two side levers fold down over the join and lock it a second time. It opens only with a deliberate press on the levers.

Where it sits in your rotation

Every season, with navy, grey, white, and dark denim, and with a steel watch on a blue dial or a blue strap. If your watch is gold, the Sapphire Tennis Bracelet 4mm Gold sets the same stones in warm metal; for a darker frame, the Sapphire Tennis Bracelet 4mm Black. The full line lives in the Tennis Bracelet collection.

Designed in Los Angeles since 2020. Ships gift-boxed.

ProductSapphire Tennis Bracelet 4mm - sapphire tennis bracelet for men
TypeTennis bracelet, one continuous line of stones with no centerpiece
StonesDeep navy-blue round brilliant-cut cubic zirconia, one per setting
Not a gemstoneSapphire is the color. The stones are lab-created CZ, not natural sapphire
Also calledSapphire blue, navy blue, deep blue
SettingRhodium-plated prong setting, each stone in its own link so the line flexes and lies flat
MetalBrass base with rhodium plating, the silver-tone finish used on white gold jewelry
Skin-friendlyNickel-free and lead-free
Width4mm, the classic men's tennis bracelet width
ClaspBox clasp with a double safety latch. Two side levers lock over the join
SizesSmall, wrists up to 6.8 in. Medium, up to 7.2 in. Large, up to 8 in
No guessingSizes are by wrist, not bracelet length. Measure the wrist and choose, nothing to add
Best-fitting sizeMedium fits most men. Small fits most women
Everyday careTake it off before the shower, the pool, and the gym to keep the finish bright
Wears withNavy, grey, white, dark denim, a steel watch with a blue dial
BirthstoneSapphire blue is the color of September
Also inGold and black
CollectionTennis Bracelets
Designed inLos Angeles, California
PackagingGift box with Caligio pouch bag

Care for it like fine jewelry

The band is brass finished with rhodium, the bright white plating used on white gold rings and watches. Plating stays brightest when it stays dry, so the one habit worth building is simple: take the bracelet off before the shower, the pool, and the gym, and put it on after perfume, lotion, and sunscreen. Two seconds a day keep the finish bright and the blue deep.

Keeping the blue deep

Dark stones hide a light film better than pale ones, but skin oil and lotion under the settings still dull their sparkle over time. Wipe the stones and the back of the line with a dry, lint-free cloth after a long day, and the sapphire blue catches the light again.

The clasp

The box clasp and its two side levers are the only moving parts. Press the tongue in until you feel the click, then fold both levers down flat. To open, lift the levers and release the tongue instead of pulling on the stone line.

Care

  • Take it off before the shower, the pool, the gym, and the beach.
  • Put it on last, after perfume, lotion, and sunscreen.
  • Wipe with a dry, soft, lint-free cloth. No polishing pastes or silver dips, which can strip the plating.
  • If it gets wet, pat it dry right away.
  • Avoid ultrasonic cleaners, which can loosen a prong.
  • Close the clasp before storing, and keep it in the Caligio pouch bag, away from other pieces.

Skin

The bracelet is nickel-free and lead-free, the two metals most often behind jewelry reactions. Keeping it dry also keeps the plating intact over the brass base, which is what keeps it comfortable on the skin.

What is a sapphire tennis bracelet?

A tennis bracelet set with one continuous line of deep blue stones. This one uses round brilliant-cut sapphire-blue cubic zirconia in rhodium-plated prongs on a 4mm band, so it gives the look of a sapphire line without natural sapphires.

Is it real sapphire?

No. Sapphire is the color; the stones are lab-created cubic zirconia, not natural sapphire. The upside is consistency: every stone in the line carries the same deep, even blue, where natural sapphires vary from inky to pale.

Is it silver or white gold?

Neither, honestly: it is silver-tone. The band is brass finished with rhodium, the same bright white plating used on white gold jewelry, so it has the look of a silver or white gold sapphire bracelet. It is not sterling silver and not white gold.

What color is sapphire blue?

A deep, saturated blue, darker than royal blue and richer than navy, with no green or purple in it. People also call it navy blue or deep blue. It is the darkest blue in Caligio's tennis line.

Sapphire or aquamarine: what is the difference?

Depth of color. Sapphire is a deep navy blue that looks formal and works all year; aquamarine is a pale sea blue that looks fresh and suits summer. Both come on the same 4mm band with the same clasp, in silver, gold, and black.

Can men wear a sapphire bracelet?

Yes, and deep blue is one of the easiest colored stones for a man to wear. It belongs to the same family as the navy suit and the blue watch dial, so on the wrist it reads as considered rather than flashy, and at 4mm the line keeps a masculine proportion.

Silver, gold, or black?

Silver is the crisp version: deep blue stones in bright rhodium plating, for a steel watch. Gold warms the blue for a gold watch and reads more regal. Black sets the same stones on a dark band for the most understated look. Same 4mm width, same clasp.

What size tennis bracelet should I get?

Choose by wrist, not by bracelet length. Caligio sizes already include the fit: Small is for wrists up to 6.8 inches, Medium up to 7.2, Large up to 8. There is nothing to add or guess. Medium fits most men, Small fits most women.

Will a tennis bracelet fall off?

A tennis bracelet has no safety chain, so the clasp does all the work, and this one locks twice. The tongue clicks into a box clasp, then two side levers fold over the join as a double safety latch. It opens only with a deliberate press.

Can I wear it in the shower?

Better not. Like most fine plated jewelry, it keeps its finish longest when it stays dry, so take it off before the shower, the pool, the ocean, and the gym. It is a two-second habit that keeps the rhodium bright for years.

Will it turn my wrist green?

Not while the plating is intact. Green marks come from bare brass or copper touching skin, and here the brass is sealed under a rhodium layer. The bracelet is also nickel-free and lead-free. Keeping it dry and off lotion is what keeps that layer intact.

What does sapphire symbolize?

Loyalty, wisdom, and trust. For centuries sapphire blue was the color of royal and church jewelry. It is also the birthstone for September and the traditional stone for a 45th anniversary, which makes the color a natural gift for both.

Is it a good gift?

Yes, especially for a September birthday or for a man who already wears navy and blue. The sizes are by wrist, so a rough idea of the wrist is enough, Medium fits most men and Small most women, and it arrives in a Caligio gift box ready to hand over.

To define the correct sizing of your wrist, we highly recommend using a tape measure and measuring the circumference of your wrist just above the hand. However, if you do not have a special measure, use a small piece of tape or a cord. Wrap it around your wrist and measure the length against a ruler.


Bracelet size
Wrist size inch / cm
SMALL

6.3 - 6.7 inch / 16-17 cm

MEDIUM
6.7 - 7.1 inch / 17-18 cm
LARGE

7.3 - 8 inch / 18 cm - 20.5 cm

 

Need XL? Check our XL Collection

Plenty of Caligio’s Cuff bracelets are adjustable and comfortably fit most of the standard wrist sizes. Slip-on cuff bracelets sizes are easily increased and decreased with bare hands. Keep in mind that the wrist size is not the same as the length of a bracelet. Still, need help? Email us at: support@caligio.com.

Calligio provides a FREE Standard Shipping delivery for all US orders above $50. International customers from countries/regions including Canada, United Kingdom, Europe and Australia get a free delivery starting from $150 orders.

Your orders are picked, packed, and shipped the same day from Los Angeles, California. The products ordered after 2PM PST are shipped the very next working day. The shipping department is on duty Monday through Saturday, excluding holidays.

Once your order has been processed, you will receive an email with your tracking number that allows you to check the order’s location. You have up to 2 hours after placing an order to request editing or canceling the order by writing to email support@caligio.com

Make sure to pick up your order in time to avoid any negative carry-outs after the product is delivered, as Caligio doesn’t take any responsibilities for orders after the status changes to Delivered. However, if you are worried about your orders getting wrongly delivered or stolen - opt for Standard Delivery + Priority Processing & Shipping Insurance for just $9.99 US only to secure a free replacement for all unreceived products.

Please note that the below-mentioned delivery timings are taken from the official websites of the delivery providers and may vary depending on the carriers delivery speed. International orders may be applicable for local taxes on top of the delivery costs.



US - USPS Standard Delivery
$5.99 3-5 Business Days

US - USPS Priority Mail
$9.99 1-3 Business Days



US -USPS Standard Delivery + Priority Processing & Shipping Insurance.


$9.99
3-5 Business Days
Canada - Standard Delivery  $19.99 7-18 Business Days
Europe - Standard Delivery $19.99 7-18 Business Days
UK & Ireland - Standard Delivery $19.99 7-18 Business Days
Australia - Standard Delivery $19.99 7-18 Business Days

 

Please note, sometimes delivery providers may come up with a shipment delay due to the restrictions issued by countries' governments in these challenging times. Therefore, there may be cases when the package arrives several days after you receive a delivery notification.

If you ordered the wrong size, color, or simply would like to return the product, you can do so within 30 days from the delivery date. To be eligible, the item must be unworn and in its original packaging, free from any odors (deodorant, perfume), stains, or signs of wear. The original gift box and velvet pouch must be included - returns without original packaging will not be accepted. Please note that a $9.99 shipping and handling fee applies to all domestic returns and will be deducted from the amount refunded.

Once your return is approved, please send the item(s) back within 7 days. 

For exchanges within the US, your first exchange is completely free and will be dispatched within 5 business days after we receive and inspect the item. Subsequent exchanges are at the customer's expense.

For international customers, returns and exchanges are handled on a case-by-case basis. Due to the complexity of international shipping, please contact us at support@caligio.com and our team will guide you through the process and find the best solution for you.

We do not process returns or refunds for final sale(special price) items, bundles, Buy 2 Get 1 Free offers, or promotional deals with discounts of 20% or more.

For any questions, contact us at support@caligio.com.

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