Shop by Diamond Shape
Why The Carat Lounge
- Smarter luxury: Because paying for chandeliers and marble floors never made a ring sparkle more.
- Transparent pricing: We show you how choices affect cost. So you control the value.
- Everyday to heirloom: From signature studs to once-in-a-lifetime rings, designed for real life.
How It Works

Share your vision
Tell us what you love. Tyles, stones, or budget through our design form or on WhatsApp.

Choose your materials
Natural diamonds, select gemstones, and your preferred metal and karat.

Approve your design
We craft 3D designs and visuals You refine the details until it’s perfect.

Craft & deliver
Expertly made with premium finishing, beautifully packaged, and delivered to your door.
Heritage craftsmanship, Singapore innovation
Rooted in fine-jewellery tradition, Carat Lounge brings Singapore’s modern design to responsibly sourced natural diamonds.
FAQ
What makes The Carat Lounge different?
We give you real freedom of choice with clear guidance at every step. Choose natural or lab grown diamonds, pick your metal and karat, customise a design or select one you love from our collection. We pair top grade stones with meticulous craftsmanship, then tailor everything to your budget and timeline.
Do you only work with certain types of diamonds?
We work with both natural and lab grown diamonds. In every case we curate top quality stones that meet strict standards for cut, colour, clarity and brilliance. If it is not exceptional, it does not go into a Carat Lounge piece.
Can you really match my budget without compromising the look?
Yes. We start with the look you want, then recommend smart trade offs that keep the beauty intact. For example, choosing a lab grown centre stone, selecting a different karat of gold, or adjusting colour and clarity within an ideal range can unlock savings while keeping the sparkle and proportions you love.
Diamonds
Natural vs lab grown. What should I know?
Both are real diamonds with the same chemistry and sparkle. Natural diamonds are formed in the earth over time. Lab grown diamonds are created in a controlled environment. Natural stones often carry higher rarity value. Lab grown stones can offer more size or higher specs at a given budget. We stock and source the best of both so you can choose what fits your priorities.
How do you ensure diamond quality?
We handpick stones from trusted partners, insist on excellent or ideal cuts where available, and recommend reputable grading like GIA and IGI. You will see the grading report and specs before you decide.
Can you help me choose the best diamond for my ring?
Absolutely. Tell us your budget and preferred look. We will shortlist options and explain the trade offs in plain language, including why one stone may face up brighter or look larger than another with the same carat weight.
Metals and Karats
7. What metals can I choose from?
You can choose platinum, gold in 18k, 14k or 9k, and silver with heavy gold plating also called vermeil. We are happy to guide you if you are unsure which to pick.
What is the difference between 18k, 14k and 9k gold?
All are real gold alloys. 18k has a richer gold tone and higher gold content. 14k balances durability and warmth. 9k offers strong durability and a lighter price point. The look can be matched closely across karats with the right finish.
When should I choose platinum?
Platinum is naturally white, hypoallergenic and very durable. It has a premium feel and weight. It pairs beautifully with white diamonds and is a great choice for engagement rings or pieces worn every day.
What is vermeil and when does it make sense?
Vermeil is sterling silver plated with a thick layer of gold. It is a smart option for fashion pieces or larger designs where you want the gold look at a friendlier price. We plate to a high thickness for longer wear and can refresh it over time.
Design and Customisation
Can you recreate a design I found online or on social media?
Yes. Share a photo or link. We will translate it into a detailed drawing, confirm the proportions, and quote options for metals and diamonds. We can also suggest tweaks to improve comfort, durability and sparkle.
I have an idea but no drawing. Can you help?
Definitely. We can start with your mood board or a few references. Our team will sketch, build a 3D model and show realistic renders before production, so you can visualise your piece clearly.
Can I combine elements from different designs on your website?
Of course. Mix the band from one ring with the setting from another or change the prong style, pavé coverage, or band width. It is your piece and it should feel like you.
Do you offer engraving or special details?
Yes. We offer inside ring engravings, hidden gems, special gallery details, and matched wedding bands. Ask us about dates, initials or a tiny birthstone.
Quality and Craft
What level of craftsmanship can I expect?
Every piece is crafted to high standards with clean setting work, secure prongs, smooth finishing and proper polishing. Stones are matched for size and colour and we check every setting under magnification. If something is not perfect, we fix it before you ever see it.
Are your diamonds really top grade?
We only select high performing stones, natural or lab grown. Expect consistent brilliance and honest grading. If there is a choice that saves money without affecting beauty, we will tell you. If a stone will not meet our standard, we will not recommend it.
Ordering and Process
How do I start?
Send us a message with what you have in mind. You can choose a design from our site, share a photo, or let us design from scratch. We will give you a clear quote with options for diamonds and metal.
What does the timeline look like?
Typical timelines are:
- Ready made styles in stock: immediate or within a few days
- Made to order from our collection: around 2 to 4 weeks
- Full custom design: around 4 to 6 weeks depending on complexity
If you have a date in mind, tell us and we will plan accordingly.
Can I preview my custom piece before it is made?
Yes. We share CAD renders and can provide a 3D printed model for fit and proportion checks when helpful.
What if I need help choosing between options?
We will prepare a side by side comparison with pricing and visuals. You will see how different diamond specs or metals affect the look and cost, so you can decide with confidence.
Budget and Value
How can I maximise sparkle within my budget?
A few ideas that often work well:
- Prioritise cut quality. It drives brightness and fire.
- Consider lab grown for larger size at the same budget.
- In natural diamonds, look for a well cut stone with balanced colour and clarity rather than chasing the highest grades.
- Choose 14k over 18k if you want the same look with a cost saving.
- Use a slim halo or brilliant side stones to enhance the centre visually.
Do you price match?
Share any comparable quote with the same specs and we will do our best to match or explain any differences in quality or craftsmanship.
Care and Sizing
Do you offer resizing and aftercare?
Yes. We provide complimentary sizing on new rings where possible and offer professional cleaning, prong checks and replating for white gold and vermeil.
How should I care for my jewellery?
Clean gently with warm water, mild soap and a soft brush. Store pieces separately, remove them for heavy workouts and apply lotions or perfume before putting jewellery on. We can share a simple care card with your order.
Sourcing and Transparency
Are your diamonds and metals responsibly sourced?
We work with trusted suppliers who follow recognised standards and provide documented traceability where available. We are happy to share the details on your specific piece, including grading reports and metal specs.
Can I see the diamond certificate before buying?
Yes. You will receive the grading report number and a copy of the certificate for review. For custom pieces we lock in the stone only after you approve it.
Packaging and Gifting
What does the packaging look like?
A refined, modern box with a soft velvet interior and a clean gold logo. It feels special the moment it opens and photographs beautifully for proposals and gifting.
Policies
What is your warranty?
We stand behind our workmanship. If a manufacturing issue appears within the warranty period, we will repair it at no cost. Normal wear and tear or accidental damage can be repaired for a fair fee.
What is your return or exchange policy?
Ready made items can be returned or exchanged within the stated window in original condition. Custom pieces are final once approved, but if something is not right, talk to us and we will make it right where possible.
Do you ship internationally?
Yes. We ship securely with insurance and tracking. Delivery times and duties depend on your location and we will advise you upfront.
Getting Started
I am ready. What are the next steps?
Tell us your design idea, preferred diamond type natural or lab grown, metal choice and budget. We will send you curated diamond options, a design outline, an exact quote and a timeline. From there, we refine the design together and begin crafting.
If you would like, share your target budget and a photo of the look you want. We will recommend the best diamond and metal choices to achieve it without compromising on the beauty you have in mind.

































































































































































































































































































































































































































































































































































































































































































































































































