Skip to product information
Signature 5 Carat Lab Grown Diamond Tennis Bracelet in 18K Gold
$7,200 AUD
Signature brilliance in its most iconic form.
This timeless 5 Carat Lab Grown Diamond Tennis Bracelet is crafted in solid 18K gold, yellow or white and set with round brilliant lab grown diamonds in a classic tennis setting.
The slightly bolder profile creates a confident presence while maintaining the clean, refined proportions that define Bellari's aesthetic. Every diamond is carefully matched for consistency, allowing the bracelet to move beautifully with light.
Finished with a butterfly clasp and double safety latch, it's designed to be worn often and appreciated for years to come.
This is the piece you return to, time and time again.
This is a made-to-order piece, made with intention and care. Please allow a crafting time of 10 business days before shipping.
details
Care
To keep your piece shining:
- Remove before swimming, showering, or applying lotions
- Clean gently with warm water and a soft brush, avoid harsh chemicals
- Ensure the piece is fully dry after cleaning. Dry with a soft cloth and a cool air setting (such as a hair dryer) can be used to assist drying
- Store it in your Bellari pouch when not worn
Warranty
All Bellari lab-grown diamonds are covered by the Bellari Lifetime Diamond Warranty on the stone itself, along with a one-year warranty covering manufacturing and precious materials.
CRAFTING & SHIPPING
If your selected piece is in stock, it ships within 1–2 business days. For made-to-order items, please allow up to 10 business days before dispatch.
NEED HELP CHOOSING?
We answer every email personally within 24 hours.
If you’re unsure about sizing, stone size, or gifting, reach out at hello@bellari.com.au or fill out a form here.
We’d love to hear from you.
Complete the Look
Reviews
Complimentary Gift Wrap
Every Bellari piece arrives in our signature velvet box, finished with ribbon and ready to gift.
Frequently asked questions
The Diamond:
What is a lab-grown diamond?
What is a lab-grown diamond?
A lab-grown diamond is a real diamond. Chemically, physically, and optically it is identical to a mined diamond.
It is created in a controlled laboratory environment that replicates the natural conditions under which diamonds form underground. The result is pure carbon in crystalline form the same composition, the same 10 Mohs hardness, the same refractive index, and the same sparkle as an earth-mined stone.
The only difference between a lab-grown diamond and a mined diamond is origin. One formed beneath the earth over billions of years. The other was grown above ground in weeks under precisely engineered conditions. The stone itself is indistinguishable.
Bellari lab-grown diamond tennis bracelet is crafted in 18K solid gold, yellow or white gold with round brilliant cut diamonds in D-E colour and VVS-VS clarity.
What does D-E colour and VVS-VS clarity mean?
What does D-E colour and VVS-VS clarity mean?
These are the grading criteria used to assess diamond quality, established by the International Gemological Institute.
Colour D-E:
The diamond colour scale runs from D (completely colourless) through Z (visibly yellow or brown). D and E are the two highest grades, both classified as colourless. At D-E, no colour is visible to the naked eye or under standard magnification. The diamonds face up bright white, with no warmth or tint.
Clarity VVS-VS:
VVS (Very Very Slightly Included) and VS (Very Slightly Included) describe stones with inclusions that are either invisible or visible only under 10x magnification by a trained gemologist. At VVS-VS clarity, every stone in the bracelet appears completely clean to the naked eye.
Bellari's D-E colour and VVS-VS clarity specification represents the upper range of diamond grading stones that face up colourless and eye-clean in all normal conditions.
What is the difference between a lab-grown diamond and a mined diamond?
What is the difference between a lab-grown diamond and a mined diamond?
The difference is origin and environmental impact. Not quality, composition, or appearance.
What is the same:
- Chemical composition: both are pure carbon in crystalline form
- Hardness: 10 Mohs the hardest known material
- Refractive index and optical properties
- Grading criteria: both assessed on cut, colour, clarity, and carat weight
- Durability: permanent, will not scratch, cloud, or lose brilliance
What is different:
- Origin: mined diamonds formed underground over billions of years; lab-grown diamonds are grown in weeks under engineered conditions
- Environmental footprint: lab-grown diamonds require no mining, no excavation, no land disruption
- Traceability: lab-grown diamonds have a clear, documentable origin
Two diamonds side by side, one mined, one lab-grown are visually indistinguishable. Gemological laboratory testing is required to identify origin.
Certification and Warranty:
What is the Bellari Lifetime Diamond Warranty?
What is the Bellari Lifetime Diamond Warranty?
Every lab-grown diamond in a Bellari tennis bracelet is covered by two warranties.
Stone Lifetime Warranty:
Every lab-grown diamond stone is covered for life. This warranty confirms the stone's identity and optical character will not change, colour, clarity, and brilliance will not fade or cloud over time. The Stone Lifetime Warranty has no time limit and applies for as long as you own the piece.
The Stone Lifetime Warranty does not cover chips, breaks, bending, loss, or theft.
Manufacturing and Precious Materials: One Year Warranty:
From the date of purchase, Bellari offers a one-year warranty covering manufacturing and material defects present at the time of delivery. This includes structural faults in craftsmanship, faults in settings, clasps or closures, and defects in the precious metal itself. It does not cover surface wear from normal daily use.
What is not covered by either warranty:
Accidental damage or impact, improper use or handling, modifications or repairs by third parties, general wear and tear, tarnishing or surface wear from exposure, damage caused by chemicals or harsh environments, and lost or stolen items.
Full warranty terms at Warranty
What is IGI certification and which Bellari products include it?
What is IGI certification and which Bellari products include it?
IGI (International Gemological Institute) is one of the world's largest independent diamond grading laboratories, founded in Antwerp in 1975. IGI pioneered the grading of lab-grown diamonds in 2005.
An IGI certificate independently documents a diamond's cut, colour, clarity, and carat weight, graded by a laboratory with no commercial stake in the sale. Each certificate includes a unique report number laser-inscribed on the diamond's girdle, verifiable at igi.org.
Bellari offers IGI certification on some diaond jewellery and individual diamonds of 0.5ct per stone or above. The Lab-Grown Diamond Solitaire Necklaces available in round, oval, pear, and emerald cut each include an IGI certificate with the piece.
For the diamond tennis bracelet collection, every bracelet is covered by the Bellari Lifetime Diamond Warranty on every stone, with the quality specification clearly documented.
What certification do Bellari's lab-grown diamond tennis bracelets come with?
What certification do Bellari's lab-grown diamond tennis bracelets come with?
Every Bellari lab-grown diamond tennis bracelet is covered by the Bellari Lifetime Diamond Warranty, which covers every individual stone in the bracelet.
On certification: for individual stones of 0.5ct or above per stone, Bellari offers IGI (International Gemological Institute) certification. The diamonds in the tennis bracelet are smaller individual stones set in a continuous line, standard industry practice is to certify the bracelet's overall quality specification rather than issue individual stone certificates at this size.
The quality specification of the diamonds in Bellari's tennis bracelets are D-E colour, VVS-VS clarity, round brilliant cut is clearly documented and backed by the Bellari Lifetime Diamond Warranty.
If you are looking for individual IGI-certified stones in Bellari's diamond collection, the Lab-Grown Diamond Solitaire Necklaces feature individual stones from 0.5ct per stone, each with an IGI certificate included.
The Design:
How does the length affect the carat weight?
How does the length affect the carat weight?
The total carat weight of the bracelet increases with the length because longer bracelets contain more diamonds.
Classic 2 Carat:
- 6.0" and 6.5" lengths: approximately 2.0ct total
- 7.0" and 7.5" lengths: approximately 2.3ct total
Signature 5 Carat:
- 6.0" and 6.5" lengths: approximately 5.0ct total
- 7.0" and 7.5" lengths: approximately 5.5ct total
This is consistent across all diamond tennis bracelets, the more diamonds required to complete the length, the higher the total stone weight. The individual stone size and quality remain the same across all lengths.
Should I choose yellow gold or white gold?
Should I choose yellow gold or white gold?
Both are 18K solid gold. The choice is purely aesthetic.
Yellow gold: The alloy creates the warm, classic gold tone the metal is recognised for. Yellow gold is the more traditional setting for a diamond tennis bracelet, the warmth of the metal creates a contrast against the colourless stones. It pairs naturally with yellow gold rings, earrings, and other warm-toned jewellery.
White gold: In its natural state, white gold carries a slightly warm or off-white tone, a reflection of gold's inherent colour in the alloy. Rhodium plating is applied over the surface to correct this, giving the metal its characteristic bright, cool white finish. The result is a clean, consistent colour that allows the diamonds to sit against a matching white-silver metal, creating a unified aesthetic where the stones appear to float without a strong colour contrast from the setting. Pairs closely with white gold rings, platinum pieces, and silver-toned jewellery.
If uncertain, consider which metal you wear most consistently in existing jewellery.
Why does Bellari use 18K gold for the diamond tennis bracelet?
Why does Bellari use 18K gold for the diamond tennis bracelet?
At 18K, the gold content is high enough to deliver a rich, genuine colour, a deeper yellow in yellow gold, a cleaner white in white gold while retaining the structural properties needed for a well-made setting.
For a diamond tennis bracelet, the setting exists to showcase the stones and hold them securely over decades of wear. 18K is the specification used by the fine jewellery industry for pieces at this level, and it is what Bellari uses for the diamond collection.
What is the difference between the 2 carat and 5 carat tennis bracelet?
What is the difference between the 2 carat and 5 carat tennis bracelet?
The difference is in total stone weight, which affects the overall presence and visual weight of the piece on the wrist.
Classic 2 Carat:
2.0ct to 2.3ct total carat weight depending on bracelet length. A refined, continuous line of diamonds, balanced in scale, appropriate for daily wear and formal occasions equally. The 2mm profile sits cleanly on the wrist without being emphatic. This is the understated choice: present, considered, worn without announcement.
Signature 5 Carat:
5.0ct to 5.5ct total carat weight depending on bracelet length. A more prominent profile, the 3mm stone size creates clear presence across the wrist. More light return, more noticeable sparkle from a distance. This is the statement choice: worn when the piece is intended to be seen.
Both use the same D-E colour and VVS-VS clarity diamonds in a four-prong setting. Both are crafted in 18K solid gold. The choice is one of scale and intention.
Sizing and Fit:
Can the bracelet be resized?
Can the bracelet be resized?
Tennis bracelets cannot be resized in the traditional sense. The length is determined by the number of individually linked diamond settings, shortening or lengthening the piece would require removing or adding stones and their settings.
For this reason, selecting the correct length at the point of purchase is important. If you are uncertain between two lengths, the longer size is generally more comfortable for daily wear.
Contact hello@bellari.com.au before ordering if you need help on sizing.
Which length should I choose?
Which length should I choose?
The bracelet should rest at the wrist, not climbing up the forearm, and not slipping over the hand.
For a classic fit: add 0.5 - 1cm to your wrist measurement.
For a slightly looser drape: add 1.5cm.
If you are purchasing as a gift and do not know the recipient's wrist measurement,
A Bellari Gift Card is also available if you prefer the recipient to choose their own length.
For guidance, Bellari's size guide is available at Size Guide
How should a diamond tennis bracelet fit?
How should a diamond tennis bracelet fit?
A tennis bracelet should sit comfortably on the wrist with a small amount of movement, not so loose that it slides down toward the hand, and not so snug that it sits tightly against the skin.
A general guide: measure your wrist and add approximately 1 to 1.5cm. This gives a comfortable drape with room for natural movement.
Bellari's bracelet is available in 6.0", 6.5", 7.0", and 7.5" lengths.
- 6.0" (~15.2cm) suits wrists approximately 14.5 to 15cm
- 6.5" (~16.5cm) suits wrists approximately 15 to 15.5cm
- 7.0" (~17.8cm) suits wrists approximately 15.5 to 17cm
- 7.5" (~19cm) suits wrists approximately 17 to 18cm
For the most accurate measurement, measure your wrist with a soft tape measure just below the wrist bone. If between sizes, the larger length provides more comfort for daily wear. Size Guide
Occasions and Gifting:
Is a lab-grown diamond tennis bracelet a good gift?
Is a lab-grown diamond tennis bracelet a good gift?
A diamond tennis bracelet is among the most significant jewellery gifts, a piece designed to be worn for decades rather than reserved for particular occasions.
The continuous line of diamonds creates immediate presence. The 18K solid gold setting ensures the piece holds its quality over time. And the Bellari Lifetime Diamond Warranty, which covers every stone, gives the recipient lasting assurance in the piece.
Both the Classic 2 Carat and Signature 5 Carat arrive in Bellari's signature velvet box with ribbon ready to present.
For major occasions, milestone anniversaries, significant birthdays, engagements, a diamond tennis bracelet carries appropriate weight as a gift. If you are uncertain about the recipient's wrist size or preferred metal, the Bellari Gift Card is available.
Can a lab-grown diamond tennis bracelet be worn every day?
Can a lab-grown diamond tennis bracelet be worn every day?
Yes. The bracelet is designed for consistent wear, not reserved for occasions.
Lab-grown diamonds rate 10 on the Mohs hardness scale, the hardest known material. The stones will not scratch, chip, or lose brilliance from daily wear. The 18K solid gold setting holds each stone securely in a four-prong basket designed for longevity.
The butterfly clasp with double safety latch ensures the bracelet stays secured during normal daily activity.
General care: remove before swimming, showering, or contact with harsh chemicals. Clean periodically with warm water, mild soap, and a soft brush. More care detail at The Sparkle Guide.
What is the difference between gifting the 2 carat and 5 carat?
What is the difference between gifting the 2 carat and 5 carat?
Both are significant gifts. The choice is one of intended presence.
The Classic 2 Carat is a refined, daily-wear piece, a bracelet that integrates into the everyday rather than announcing itself as a special-occasion piece. For a recipient who tends toward understated elegance, or who will wear the bracelet consistently across all contexts, the 2 carat is the considered choice.
The Signature 5 Carat is a more prominent statement. The 3mm stone profile creates clear, noticeable presence at the wrist, a piece that is seen from across a room. For milestone occasions where the gift is intended to reflect the significance of the event, the 5 carat carries that weight.
How long does it take to receive a Bellari diamond tennis bracelet?
How long does it take to receive a Bellari diamond tennis bracelet?
Each piece is made to order. Please allow 10 business days of crafting time before dispatch.
After dispatch:
- Australia standard: 4 to 5 business days
- Australia express: 1 to 2 business days
- International standard: 10 to 15 business days
Tracking details are sent via email once dispatched.
If you have a specific date in mind, an anniversary, birthday, or event, contact hello@bellari.com.au with any deadline and we will confirm availability.
Is a diamond tennis bracelet appropriate for a wedding or anniversary gift?
Is a diamond tennis bracelet appropriate for a wedding or anniversary gift?
Yes. The diamond tennis bracelet has long been associated with significant celebrations, its continuous, uninterrupted line of stones carries an inherent sense of permanence.
For anniversaries, it marks lasting commitment with a piece built to last equally long. For weddings, it complements bridal styling and transitions into an everyday piece after the occasion. For significant birthdays 30th, 40th, 50th it is a gift that reflects the importance of the milestone.
Both the Classic 2 Carat and Signature 5 Carat in 18K solid gold are appropriate for any of these occasions.
Where It Began.
Bellari was founded in Sydney, Australia by Kay and Dino, inspired by a single tennis bracelet that became a symbol of timeless style.