Ethically Sourced Natural and Lab-Grown Diamonds

Experience handpicked, luxurious diamonds and gems crafted with care for sustainable, custom engagement rings and jewellery.


Ethically Sourced Natural and Lab-Grown Diamonds

Experience handpicked, luxurious diamonds and gems crafted with care for sustainable, custom engagement rings and jewellery.


Ethically Sourced Natural and Lab-Grown Diamonds

Experience handpicked, luxurious diamonds and gems crafted with care for sustainable, custom engagement rings and jewellery.


Ethically Sourced Natural and Lab-Grown Diamonds

Experience handpicked, luxurious diamonds and gems crafted with care for sustainable, custom engagement rings and jewellery.


"Price is what you pay.
Cost is what you spend.
Value is what you get." - Warren Buffet.
Enjoy the exclusive lowest prices on our high-value jewellery.

Why Choose Twinkle Diamonds?

Twinkle Diamonds Values:
We conduct our business with transparency, fairness, and honesty. Your personal 100% satisfaction is our main priority. We hand-pick excellent, certified diamonds and gems in every proportion. Our diamonds are meticulously handpicked and certified, ensuring they meet the highest standards of cut, clarity, colour, and carat weight. https://4cs.gia.edu.

Twinkle Diamonds Creativity:
Not only will your engagement ring, wedding ring and jewellery have a great first impression. It will never be a second-tier piece. It will have everlasting and noticeable results.

Twinkle Diamonds Pricing:
Our prices are competitive and fair. Your shopping is risk-free. Work with us, and you can get everything. If you are not 100% satisfied, please don't hesitate to contact us, and we will do our best to help you.

Twinkle Diamonds Return Policy:
With our easy return policy, you can have peace of mind. We will stand behind your purchase, ensuring you find the perfect piece. Read the 30-day return policy.


Ethically Sourced
Diamonds

Fairly Priced

Custom-made Jewellery

30 Days Money Back
Guarantee

Top Sellers

Thank You for being our happy customer. Your support and trust in us are much appreciated.
I heard about Twinkle Diamonds through one of the people that work there, Devansh (Dave). To provide background, I was in need of a pair of wedding rings and Dave made the process as smooth and uncomplicated as possible. I am going to speak with Twinkle Diamonds again around my soon-to-be wife's birthday to get her another ring as a gift.
β€” Edward Hunt
I have recently dealt with Sunjay regarding an online purchase from SA. His communication, service and delivery on what he said the product was has been exceptional. I am extremely happy with my new 80cm pearls.
β€” Jayne McLaren
Went to Sunjay to design an engagement ring he was really helpful from beginning to end. The quality and look and the ring is stunning.
β€” Joachim Jenni
Sunjay was incredibly helpful when I came into custom design my wife’s engagement ring and offered an amazing price for the high-quality ring he created. Naturally, we came back to organise our wedding bands and of course he was equally amazing as the first time. I would highly recommend Twinkle Diamonds if you want top quality, professional service and excellent value.
β€” Nat Peerenboom
My fiancΓ© and I came all the way from Melbourne to pick up my engagement ring because we couldn't find a trustworthy diamond dealer who could provide us with a clean diamond. Thankfully Sunjay in Sydney was able to provide us with a flawless diamond and he was able to design my dream ring. I couldn't be happier and I can't stop looking at my beautiful ring. If you are looking for a diamond ring I can assure you that twinkle diamonds will not only provide you with the best diamond but he will give you the best price.
We thank you dearly Sunjay and we will see you in the near future to design my wedding band.

Apostolis & Irene
β€” Irene Antonopoulos
Never have I had a better experience than dealing with Sunjay. The flawless finish of the diamond ring and quality of the cut surpasses all comparable vendors. It is without a doubt that if you want a piece of jewellery that makes a statement and lasts an eternity there is only one place. Will be going back for all future items of jewellery.
β€” Matthew Freestone
Excellent service and prices. Sunjay was amazing to work with. He teaches you everything you need to know about the diamonds, the ring, and the crafting process. He is clear about pricing upfront and delivers a premium finish. Bought both the engagement ring and wedding ring from him.
β€” Daniel Hingston
I have to thank Sam for putting up with me while helping me pick out just the right diamond for an engagement ring. He provides excellent service and he made sure I knew everything I needed to know before I went ahead with the purchase. Many thanks.
β€” Michael Hillier
My FiancΓ© bought my ring from Twinkle Diamonds. They not only helped him choose the perfect diamonds but assisted in the design of the ring. B all accounts they were extremely helpful and I am absolutely blown away by my ring!

Thank you very much!
β€” Emmah T
There was an excellent selection of diamonds available and I was able to select one at a very good price.
β€” Gabby Gladys
Diamond Tennis Bracelets
Diamond Rings

GIA Certified Diamonds

Certified Diamonds: Our diamonds are certified, and we ensure they meet the highest standards of cut, clarity, colour, and carat weight.

We conduct our business with transparency, fairness, and honesty. Your personal 100% satisfaction is our main priority. We hand-pick excellent to perfect (the very best) certified diamonds in every proportion.

Hassle-Free Returns: With our easy return policy, you can have peace of mind. We will stand behind your purchase, ensuring you find the perfect piece. Our diamonds are meticulously handpicked for their exceptional cut, clarity, and ideal proportions.

OUR ACCREDITATIONS

Discover Hand-Made and Crafted Natural and Lab-Grown Diamond Jewellery.

Handcrafted that combines luxury, ethics, and affordability.


Visit Our Store


4 Floor, Suite 403
250 Pitt Street, Sydney
NSW 2000, Australia

Mon - Fri, 10.00 am - 6.00 pm
Saturday, 10.00 am - 3.00 pm (By appointments)

All other times by appointments. (T: 02 9261 5005)



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51January-20-2025
1.91 ct Diamond Halo Stud Earrings Redefine elegance with these stunning diamond halo stud earrings, Featuring a brilliant combination of lab-grown and round-cut diamonds. Perfect for any occasion, they add a dazzling touch of sophistication to your style πŸ’Ž Don't miss out on this great opportunity!! ✨🎁 https://www.twinklediamonds.com.au/products/lab-grown-and-natural-diamond-halo-stud-earrings-1-91-carat-d-f-vvs-vs2 If you have any further queries or questions, feel free to contact us here: ☎️(02) 9261 5005 πŸ“©sales@twinklediamonds.com.au #twinklediamonds
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20January-16-2025
Diamond Halo Engagement Ring A glamorous 1.82-carat diamond halo engagement ring that combines the brilliance of a halo lab-grown diamond with the natural beauty of surrounding smaller diamonds that enhance its extraordinary shine. The meticulously crafted band is adorned with intricate detailing, making it a perfect symbol of love and commitment πŸ’ŽπŸŽ Don't miss out on this golden opportunity!! https://www.twinklediamonds.com.au/products/1-82-ct-halo-lab-grown-and-natural-diamond-engagement-ring If you have any further queries or questions feel free to contact us here: ☎️ (02) 9261 5005 πŸ“© sales@twinklediamonds.com.au #twinklediamonds
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20January-15-2025
Natural Diamonds Halo Enhancer Stud Earrings 2.16 ct Finer elegance with our 2.16-carat lab-grown and natural diamonds halo enhancer stud earrings, designed to take your style to a whole new level with a beautiful brilliant round center stone encircled by a sparkling halo of diamonds - adding luxury and a must-have for your jewelry collection πŸ’Ž Don't miss out on this golden opportunity!! 🎁 https://www.twinklediamonds.com.au/products/lab-grown-and-natural-diamond-halo-enhancer-stud-earrings-2-16-carat-d-vvs2?_pos=1&_psq=lab+grown+and+natural+diamonds+halo+enhancer&_ss=e&_v=1.0 If you have any further queries or questions contact us here: ☎️ (02) 9261 5005 πŸ“© sales@twinklediamonds.com.au #twinklediamonds #custommadejewelry #diamondstudearrings
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20January-07-2025
Elevate your style with our lab-grown diamond stud earrings, featuring brilliant-cut diamonds that add a touch of elegance and glamour, perfect for those special moments and everyday wear as well Diamond Stud Earrings 2.96 carat 🎁 Please find out more here on our website: https://www.twinklediamonds.com.au/products/lab-grown-diamond-stud-earrings-six-claws-2-96-carat-d-vvs2 If you have further queries or questions contact us here: ☎️ (02) 9261 5005 πŸ“© sales@twinklediamonds.com.au #twinklediamonds #custommadejewelry #diamondstudearrings
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30December-30-2024
Start the new year off right in 2025 with this piece that redefines luxury with its radiant, high quality crafted diamonds. A bold yet classic diamond tennis bracelet, perfect for making memories and celebrating special occasions every day πŸŽ† 8.18 ct Elegant-Lab grown Diamond Tennis Bracelet 🎁 Find out more here on our website: https://www.twinklediamonds.com.au/products/8-18-ct-elegant-lab-grown-diamond-tennis-bracelet If you have further queries or questions contact us here ☎️ (02) 9261 5005 πŸ“© sales@twinklediamonds.com.au #twinklediamonds #tennisbracelets #customdiamondjewelry
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30December-16-2024
The gift of sparkle, celebrate this Christmas season with this diamond tennis bracelet that offers modern luxury with a shine turning everyday moments into extraordinary onesπŸ’Ž 7.73 ct Elegant Lab-grown Diamond Tennis Bracelet 🎁 Find out more on our website: https://www.twinklediamonds.com.au/products/7-73-ct-elegant-lab-grown-diamond-tennis-bracelet If you have further queries or questions contact us here ☎️ (02) 9261 5005 πŸ“© sales@twinklediamonds.com.au #twinklediamonds #tennisbracelets #customdiamondjewlery
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91December-13-2023
Give her something to cherish this Christmas β™₯️ 1.80 CT Natural Ruby with Half Halo Set Diamonds Dress Ring 18K White Gold $2,280 + GST Metal: white gold Diamond specs: 0.38 carat, F-G colour / VS1 - VS2 clarity, round brilliant and oval shapes Ruby specs: 1.42 carat, purpleish red colour, eye clean clarity, oval shape SKU: TWD/RBDRRNG01655/W #twinklediamonds #diamondring #diamonddressring #rubyring #rubyjewelry #christmasjewelry #christmasgifts #diamondjewelry #cocktailring #customjewelry #sydneyjeweller #conflictfreediamonds #giacertified #rubydiamondring #onecarat #haloring #christmasring #diamondgift #diamondanniversary #rubyanniversary
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164December-13-2023
#SHESAIDYES πŸ’ Congratulations to Isabelle & Raphael, wishing you a life of all the love, happiness and togetherness. Welcome to the TD family β™₯️ #twinklediamonds #engaged #proposal #shesaidyes #wesaidyes #sydneyjeweller #engagementring #diamondengagementring #solitaireengagementring #customengagementring #conflictfreediamonds #giacertified
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304January-23-2023
EMERALD vs RADIANT πŸ’Ž Similarities ✨ both cuts can look similar in that they are both a long rectangular shape with parallel sides ✨ both have beveled, or cut corners which will make them more durable and less prone to chipping ✨ both are fancy shape diamonds that have their own unique faceting style which is also the major reason why they look so different Differences πŸ’Ž Emerald Cut diamonds ✨ classified as being a step cut, meaning the facets are arranged in a parallel fashion ✨ has a large open table so when you look straight in to the diamond, you can clearly see through the stone ✨ does not have additional brilliant facets (which almost all other shape diamonds have) that will hide any natural inclusions ✨ because of this faceting style there is less sparkle and concentration of color in these diamonds so you are able to get away with a lower color grade (I-J) that will still appear colorless face-up ✨ less fiery than a brilliant cut stone but they give off dramatic flashes of light and have a very elegant appeal. TWINKLE TIP: consider purchasing a stone that has a higher clarity grade (VS2 +) πŸ’Ž Radiant Cut diamonds ✨ a lot more sparkle and the triangular facets are arranged in a brilliant cut style so you can expect the same fire and brilliance of a Round Brilliant diamond but in a square or rectangle shape with cut corners ✨ shows more concentration of color while making most inclusions, quite the opposite when compared to the emerald cut diamonds ✨ shape is suited for someone who prefers a more linear shape while maintaining the wow factor of a brilliant cut diamond #twinklediamonds #diamondeducation #radiantcut #emeraldcut
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351January-17-2023
Which cut looks the BIGGEST? πŸ€©πŸ’Žβœ¨ Let’s answer the question we get asked most often! While the obvious answer is elongated shapes (emerald, radiant, oval, pear, elongated cushion) the answer is not as straight forward… The truth is that the biggest bang for your buck comes from RATIO! For example, an oval diamond with a larger spread and ratio of 1 : 1.3 will appear bigger than an elongated oval with a ratio of 1 : 1.7 What cut do you think appears the biggest? Drop in the comments below πŸ‘‡πŸ» #twinklediamonds #diamondeducation #sydneyjeweller
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161January-17-2023
Options are endless when you shop wholesale ✨ πŸ’Ž consultation with expert jewellers πŸ’Ž locally made with Sydney-based workshop πŸ’Ž custom design and remodelling services πŸ’Ž best price GUARANTEED πŸ’Ž outstanding 1-2-1 customer service πŸ’Ž free follow-up cleaning πŸ’Ž proudly family owned and operated We are open Mon-Fri and on Saturday’s by appointment only. To book an appointment or visit our show room: ☎️ (02) 9261 5005 πŸ“§ sales@twinklediamonds.com.au #twinklediamonds #customdiamondjewelry #sydneyjeweller
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272January-16-2023
#SHESAIDYES πŸ’πŸ’•βœ¨ Congratulations to the lovely @hannie_rin @jakk_walker Wishing you a lifetime of love and togetherness! Welcome to the TD family πŸ’Ž #twinklediamonds #willyoumarryme #anotherhappyclient
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153January-16-2023
Kicking off the new year with our brand new packaging just in time for Valentine’s Day 🎁πŸ₯°πŸ’• #twinklediamonds #sydneyjeweller #customdiamondjewelry
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301November-22-2022
Cushion cut diamond engagement ring with RBC halo and pavΓ© WHY CHOOSE A CUSHION CUT? πŸ’ πŸ’Ž if you’re looking for something unique then cushion cut is a great choice with its variances in cutting styles, no two cushion cuts are the same πŸ’Ž with its straight sides and rounded corners, cushion cut is a perfect mix of classic appeal with a modern twist πŸ’Ž cushion cuts have a high level of brilliance and fire meaning it is forgiving with a tint of colour in its grading compared to other cuts πŸ’Ž the styling choices with cushion cuts are endless When opting for a cushion cut, always consider the width:length ratio and what it is you prefer ✨ #twinklediamonds #cushioncutengagementring #diamondeducation
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231November-21-2022
Give her something as unique as she is πŸ’ When looking to customise, it’s essential you go with a trusted jeweller specializing in quality craftsmanship and diamond sourcing. Twinkle Diamonds have been creating custom diamond jewellery since 1986 for generations of clients. Pictured: πŸ’Ž three-row pavΓ© band πŸ’Ž diamond encrusted four-claw setting πŸ’Ž works seamlessly with any shape for your centre stone #twinklediamonds #customengagementring #sydneyjeweller
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112November-14-2022
R is for radiant… Diamond initials are the perfect gift whether it be for a birthday, graduation, anniversary or push present. 🎁 There is plenty of time to put in your Christmas orders but do not delay. Get creative and gift her an initial of a special someone πŸ˜‰ #twinklediamonds #diamondpendant #diamondinitial
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92November-12-2022
For the striking and dramatic… Split shank engagement ring with double halo πŸ’ #twinklediamonds #doublehalo #splitshankengagementring
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174November-11-2022
Keeping its simple… but significant Book your ring consultation with us today πŸ“§ info@twinklediamonds.com.au ☎️ (02) 9261 5005 We are open Monday-Friday Saturdays by appointment only #twinklediamonds #sydneyjeweller #customengagementring
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141November-07-2022
We have a new highlights section! When it comes to picking the shape of your engagement ring’s centre stone, we have all the pro’s and con’s for each shape
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202November-07-2022
Oval engagement ring in a split shank setting πŸ’ Add character to your engagement ring with two slender shanks stemming from the center stone. What is a Split Shank Engagement Ring? ✨ In an engagement ring, the shank refers to the band or part of the ring that encircles your finger. A split shank is a ring in which the shank splits into two, creating two separate metal pieces that stem from the center stone. Why Choose a Split Shank Engagement Ring? ✨ A split shank setting offers something… EXTRA. With its unique design, and symmetry, the two shanks leading up to the diamond add character making the diamond the central focus. Split shank settings can be crafted for any Diamond Shape because of their secure design. The beauty of two shanks often compliments a range of styles, from Round Brilliant to Princess Cut rings. TWINKLE TIP: split shank style is best suited to rings with a halo and pavΓ© detailing Pros and Cons of a Split Shank Setting ✨ Pros πŸ’Ž Features additional surface area for side stones and sparkle. πŸ’Ž Offers a unique, attention-grabbing appearance, stunning for various diamond shapes and setting colors. πŸ’Ž Leads the eye toward the center stone, making the diamond more noticeable and prominent. πŸ’Ž Can be designed in either a classic or modern look. Cons πŸ’Ž Requires more cleaning than simpler settings. πŸ’Ž May not be as practical for those who do frequent work with their hands. πŸ’Ž Take into consideration what wedding band you plan to pair with a split shank engagement ring, we recommend you try them on together. #twinklediamonds #splitshanksetting #splitshankengagementring