Same Diamond,

Just Better

Not a cubic zirconia. Not a moissanite. Not a crystal.

Lab grown diamonds consist of pure carbon in the same crystalline form as mined diamonds.

But Just Better.

100% Diamond

100% GIA/IGI Certified

100% Ethical

Media Talk About Us

Customers Love Us







shaun ang
Both Iris and Agnes have been really great and helpful from the start till the end of our ring hunting journey. Recommended to all budding couples who are looking to settle on a ring soon! Will add the photo of the ring once the proposal is done!
Deepti Krishnan
Can’t thank Iris and Sharon enough for my lovely ring. We had a great experience right from our first meeting in their tastefully done studio, where Iris took us through all the details, with a lot of patience. Not once did we feel pressured, which added to the trust. They were also very supportive in helping accommodate our tight timeline. My first ever solitaire and I couldn’t have asked for anything better! Thanks for making our 10th anniversary so special 💕
Zhiwei Liu
Great experience with Sharon and Iris!
Chang Choon Fah
Ring was stunning, team was patient and friendly, service was impeccable. Thank you Authica team!
Xian Wang Seow
Had a wonderful experience at Authica with Iris and Sharon! They were extremely helpful with my requests and really paid great attention to delivering the diamond and design that we wanted. All in all, would recommend them to all my friends who are looking for ethically sourced, lab-grown excellent quality diamonds!
J Chung
A big thank you to Sharon, Agnes and the entire team behind Authica for helping to craft the perfect ring for my fiancee! I was blown away by the team's professionalism and attention to detail throughout the entire process, from the initial consultation, all the way to the final collection of the ring. They were also very accommodating as they helped to rush the production of my ring within a very short amount of time, while still maintaining a high level of attention to detail! Once again, thank you to the team and I'd highly recommend Authica to anyone looking to create their perfect ring!
Jaiya Mutharasu
I’ve been engaged for a few months and I have to say that I’m still in love with my engagement ring. My fiancé and I went ring shopping to understand my preference/liking better. Sharon and Iris were very welcoming, informative and patient throughout the process. My fiancé decided to go with them because I only wanted lab-grown diamonds. On the other hand, I wanted to surprise my fiancé with an engagement band too so I explored some options with Sharon and Iris. After a few conversations, we settled on a sleek hammered ring (which I really like!). We are happy that both our rings are from Authica J. P.S This is long overdue but I still want to thank you both for making our engagement ring experience a delightful one!
Nicholas Chua
Went to multiple Jewellery shops for Engagement Ring, ultimately chose AJ because of their ulticut quality, detailed presentations, explanations and live display. There was also close follow up on the ring collection. Thanks to Iris, Sharon and the AJ Team.
Had a very pleasant experience with Authica J. Firstly, they provide a good range of ring design and are very patient to provide their experienced advice. Secondly, they go out of the way to help customers. Iris and team helped me to get my proposal ring as soon as possible. Thirdly, they ensure the quality of their products. They perform rigorous checks to ensure that their diamond is of good quality! Definitely worth the price. Thanks Team Authica!
Joshua Yeo
Great place to choose an engagement ring. The team were very professional throughout the whole process!

Appreciation of diamonds’ beauty do not have to make huge holes in our Earth and pockets.

We are here to change this for Mother Earth, our generation and our future.

The Authica Difference

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Stringent Quality Check of Diamonds with Best Cut Grade

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Diamonds with Excellent Hearts & Arrows Cut and Light Performance

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Leading Seller with Ready GIA/IGI Certified Diamonds

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Hassle Free Customisation Journey

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Complimentary Annual Cleaning, Polishing and Prong Tightening

Our Pricing

Grown vs Mined

0.5 carat 

Colour: D , Clarity: VS1

Mined: from SGD 2,161

Authica Lab Grown: from SGD 800

0.70 carat

Colour: D , Clarity: VS1

Mined: from SGD 4,088

Authica Lab Grown: from SGD 1,500

1 carat

Colour: D , Clarity: VS1

Mined: from SGD 11,000

Authica Lab Grown: from SGD 2,160

*Stated diamond prices are for reference only, as all diamond prices are subjected to daily fluctuations in the global market. They do not act as a singular benchmark for all diamonds of similar 4Cs specs, as each diamond is unique with their distinctive qualities.

Know Your Diamond First


A truly beautiful diamond is one beyond the common 4Cs. Let Team AJ share and guide you on Authica’s standards of excellence. You will be blindsided, no more.

Choose Your Ring Next


Authica’s Ready Collection offers more than 60 timeless to modern designs that will be so well-loved by your beloved. The hassle-free way to customise your dream ring. Or, send us a picture of your dream design and we will create it with you.


The Limelight

Worthy inspo for the smart diamond lover. Follow @authica.j