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Nature Inspired
64 items
Solitaire
108 items
Halo
115 items
Three Stone
54 items
Pavé
211 items
Vintage
27 items
Kind, not mined.™
Same Composition
Chemically, physically, optically identical to mined diamonds.
Better Price
Get 30-50% more diamond for the same budget.
Better Quality
IGI certified, flawless, and precision-cut craftsmanship.
Better Ethics
100% conflict free, with no mining impact.
Better Sustainability
85% less water & energy use, zero land displacement.
Better Choice
Lab grown diamonds are the future, luxury with responsibility.
Your Perfect Ring, Made to Order.
From stone to setting, we craft every ring by hand, just for you. Choose your design, personalise every detail, and see it come to life.



Trusted by 27k+ Customers Worldwide
Shop Rings by Shape
Proudly Crafted in Diamond City
90% of the world’s diamonds are cut and polished in Surat (India).
Handmade with Love
Designed in-house, no mass production, ensuring exclusivity.
AU & NZ Shipping
Securely shipped from our Australian owned boutique. Average 3-4 week turnaround.
Easy 30 Day Returns
Enjoy hassle-free returns & exchanges.
Our Signature Collections
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Every Order Over $1500 Comes with a Complimentary Gift.
Made from sterling silver, choose a pendant or earrings. Beautifully packaged and ready to gift (or keep for yourself).
Loved by Customers
Hear from those who’ve experienced our craftsmanship firsthand.

Wendy V, Newcastle, NSW
Couldn't be happier!!
The team at Diamondrensu were so helpful, thorough and kept us informed every step of the way when my son asked them to create the perfect ring for his fiance to be. The quality is exceptional and pricing very fair. The stone came Certified and was cut exactly to our specifications. She said "yes!!" Loved the ring to bits and doesn't want to change one thing about it! They will be back for wedding bands for sure!
Read LessThe team at Diamondrensu were so helpful, thorough and kept us informed every step of the way when my son asked them to create the perfect ring for his fiance to be. The quality is exceptional and pricing very fair. The stone came Certified and was cut exactly to our specifications. She said "yes!!" Loved the ring to bits and doesn't want to change one thing about it! They will be back for wedding bands for sure!
Read Less
Louise, Sydney
So in love with my ring
Thank you so much for all the help in designing my ring. It is stunning and I get so many compliments.
Special thanks to Trina who I saw about 4-5 times in store.
Everyone was so lovely, patient, helpful. I will definitely recommend Diamondrensu to any friends who need jewellery or an engagement ring.
Thank you so much for all the help in designing my ring. It is stunning and I get so many compliments.
Special thanks to Trina who I saw about 4-5 times in store.
Everyone was so lovely, patient, helpful. I will definitely recommend Diamondrensu to any friends who need jewellery or an engagement ring.

Jillian, Christchurch, New Zealand
Absolutely stunning! To say the very least
This very beautiful ring arrived this morning 😊 I have been really looking forward to receiving it for a little while. It's a Showstopper 😍 and I am very happy with the size of the setting. The Alexandrite was a great choice for the centre stone. I couldn't have afforded this ring/setting if it wasn't for Lab created diamonds. I have a substantial and expensive collection of rings. But, it's nice to have 2 rings from Diamondrensu with flawless Lab created diamonds 🙂 A big Thankyou to Dhara 😊 who I have dealt with for the Moissanite and this incredible Alexandrite
Read LessThis very beautiful ring arrived this morning 😊 I have been really looking forward to receiving it for a little while. It's a Showstopper 😍 and I am very happy with the size of the setting. The Alexandrite was a great choice for the centre stone. I couldn't have afforded this ring/setting if it wasn't for Lab created diamonds. I have a substantial and expensive collection of rings. But, it's nice to have 2 rings from Diamondrensu with flawless Lab created diamonds 🙂 A big Thankyou to Dhara 😊 who I have dealt with for the Moissanite and this incredible Alexandrite
Read Less
Proudly Crafted in Surat, India, the diamond capital of the world,
- 90% of the world’s diamonds are cut and polished in Surat.
- Our artisans bring generations of expertise to handcraft every piece with precision and care.
- Lab-grown diamonds from Surat are among the best in the world, with India producing over 3 million carats annually.
Get Personalised Guidance from Our Experts
Whether you're designing a custom ring or need help choosing the perfect piece, schedule a 1-on-1 consultation and let us assist you.
Lab-Grown Diamonds
VS
Mined Diamonds
Depending on the size, can take 4-10 weeks to form.
Method
Diamonds are mined from the earth via giant, open-pit or underground mines
Well controlled conditions, FAR less impact on the environment.
Conditions
Industry reputation for unethical labor practices.
Results in affordable & sustainable diamonds.
Price results
Results in expensive & unsustainable diamonds.
How to buy lab grown diamonds?
Lab-grown or lab-created diamonds are grown from a diamond seed in a laboratory, using advanced techniques that replicate the natural diamond formation process. They possess the same chemical, physical, and optical characteristics as mined diamonds. The two main methods are High Pressure, High Temperature (HPHT) and Chemical Vapor Deposition (CVD). These diamonds offer an ethical and environmentally friendly alternative to traditional mining, avoiding the associated conflicts and ecological impacts.
We have a 30-day return and exchange policy. For full details see https://diamondrensu.com.au/policies/refund-policy
Yes, we offer IGI certification for lab-grown diamond rings that are over 1 carat. For diamonds below 1 carat, certification is available for an additional fee of AUD 135. We provide these certificates to ensure transparency and authenticity, which can also be used for jewellery appraisal purposes.
Moissanite may appear dull if dirt accumulates on or under the stone. However, once cleaned, it will return to its original, sparkling appearance.
Our rings are exclusively crafted from real, solid gold, silver, and platinum. We do not use plated metals for ring making. Each ring features a purity stamp inside the band to indicate the metal's authenticity.
At Diamondrensu Australia, love and craftsmanship come together to create extraordinary jewellery. As innovators in lab-grown diamonds and moissanite jewellery, we take pride in designing pieces that captivate the eye while telling a story of sustainability and modern elegance. Each jewel at Diamondrensu fuses art and science. Our lab-grown diamonds and moissanite stones aren’t just eco-friendly alternatives – they’re symbols of environmental stewardship. Carefully crafted, these stones deliver the brilliance and quality of mined diamonds while reflecting a commitment to a greener future.
Our skilled artisans pour their expertise and passion into every creation, transforming ethically sourced stones into timeless masterpieces. From radiant engagement rings to refined necklaces, each piece is perfectly handcrafted with precision and care. Their designs resonate with your values and milestones.
Choosing Diamondrensu means embracing a vision where luxury and responsibility coexist. It's more than adorning yourself with exquisite jewelry – it's about making a conscious choice to support ethical craftsmanship and sustainable practices.Join us in celebrating a future shaped by love, innovation, and artistry. Discover the timeless beauty of Diamondrensu – where every piece tells a story of love for you and the world around us.
Did you know that lab-grown diamonds are created in controlled environments using advanced technology that replicates the natural diamond-growing process? These diamonds are made from pure carbon atoms arranged in the exact same crystal structure as mined diamonds, giving them the same brilliance, sparkle, and durability.
Lab-grown diamonds also score a perfect 10 on the Mohs scale, just like mined diamonds. The only real difference is how they’re formed — not what they are.
Both lab-grown and natural diamonds go through the same steps after creation, including cutting, polishing, and grading, and they’re available in a wide range of colors and clarity grades.
The main difference between lab-grown and natural diamonds is their origin:
- Natural diamonds form deep within the Earth over billions of years under intense heat and pressure, and are then mined.
- Lab-grown diamonds are created in a laboratory using CVD (Chemical Vapor Deposition), which replicates the conditions under which diamonds naturally grow.
Because they’re physically, chemically, and optically identical to mined diamonds, lab-grown diamonds are a popular choice for shoppers who want a more affordable option and a lower environmental impact compared to traditional mining.
































