Natural Diamond Engagement Rings

Natural diamond engagement rings at The Colored Stone Co. start from LKR 565,000 for a 0.5ct stone in 18K gold. Every stone carries independent GIA certification, and every ring is made to order in our Colombo workshop — the natural diamond itself is sourced to your specification, not held as pre-cut stock.

Choose natural for geological rarity, resale value, and the tradition of a stone formed over billions of years. Want the same diamond at a fraction of the price instead? See our lab-grown diamond engagement rings, or design a custom diamond ring. Browse the collection below.

Full pricing guide & FAQs+

How Buying Works

1

Message us with your budget and stone preference

Tell us what you're looking for over WhatsApp — no form, no account.

2

Confirm your design and ring size

We agree on the setting, metal, and size before we ask for a deposit.

3

Deposit

Sourcing a specific stone takes real time and effort, so we ask for a deposit before searching begins — it secures your order and starts the sourcing process. If we're unable to source a stone that matches your requirement, the deposit is refunded in full.

4

We source the stone and send certificate details

We share graded stone options with full GIA certificate details — cut, colour, clarity, and carat — that fit your brief before anything is confirmed.

5

Production

Once the stone and design are confirmed, production begins in our Colombo workshop — allow 2–4 weeks.

6

Collect or ship

Collect in person in Colombo, or we arrange tracked, insured shipping if you're overseas.

We respond within hours.

If we're unable to source a stone that matches your requirement, your deposit is refunded in full.

Natural diamond engagement ring prices in Sri Lanka

Stone Size Finished Ring (LKR)
0.5ct 565,000 – 780,000
1ct 1,735,000 – 1,895,000
1.5ct 2,535,000 – 2,970,000
2ct+ From 9,135,000

Natural diamond prices rise sharply above 2ct — this reflects genuine geological rarity, not a pricing error. If budget matters more than natural origin, our lab-grown diamond engagement rings give you the same stone, chemically, from LKR 240,000.

Frequently asked questions

How much does a natural diamond engagement ring cost in Sri Lanka?

Natural diamond rings start from LKR 565,000 for a 0.5ct stone and rise to LKR 2,500,000+ at 1.5ct, with a sharp increase above 2ct as genuinely rare, larger stones become harder to source. Exact pricing depends on cut, colour, and clarity.

What certification do natural diamonds carry?

Every natural diamond centre stone is independently certified by GIA (Gemological Institute of America), confirming the 4Cs — cut, colour, clarity, and carat — and that the stone is natural, not treated or lab-grown.

Should I choose natural or lab-grown?

If resale value and geological rarity matter to you, choose natural. If you want maximum size and quality for your budget and plan to wear the ring rather than sell it, lab-grown is the more rational choice at current prices.

Do you offer lab-grown diamonds as well?

Yes — see our lab-grown diamond engagement rings collection, starting from LKR 240,000 for a 0.5ct stone — the same diamond, chemically, at a fraction of the price.

Need help choosing? Read our engagement ring guide, our diamond buying guide, or our full price guide. New to the decision entirely? Start with our jewellery buying guide.

Have questions about a specific stone or setting? We're happy to help.

💬 Chat with Us on WhatsApp
Natural Diamond Engagement Rings
1 2