Lab-grown diamond rings in Sri Lanka

A lab-grown diamond ring in Sri Lanka starts from LKR 215,000 at The Colored Stone Co. — a certified 0.5ct round solitaire in 18K gold, made to order in Colombo in 2–4 weeks. Lab-grown diamonds are chemically identical to mined ones (Mohs 10), typically cost 40–70% less, and come with an IGI or GIA certificate.

A lab-grown diamond is the same stone as a mined diamond — same chemical composition, same optical properties, same hardness (Mohs 10). The only difference is origin. For buyers in Sri Lanka, that difference translates into something concrete: a certified 0.5ct lab-grown diamond solitaire in 18K gold from LKR 215,000, where the nearest natural diamond equivalent starts at LKR 565,000+.

Every ring is made to order in our Colombo workshop. Every stone is IGI or GIA certified. Browse the options below or WhatsApp us to discuss a custom design at your budget.

Lab-grown diamond ring prices in Sri Lanka (2026)

All rings are made to order in 18K gold — white, yellow, or rose. Prices below are indicative; the exact figure depends on stone grade and setting complexity. See the full engagement ring price guide for a complete breakdown across all stone types.

Certified stones, every time

Every lab-grown diamond we use is certified by an internationally recognised gemological authority — IGI (International Gemological Institute) or GIA (Gemological Institute of America). The certificate grades cut, colour, clarity, and carat weight, and explicitly confirms the stone is lab-grown.

The quality difference between a D/VVS1 and an I/SI2 stone is meaningful — optically and in price. When you order from us, you know exactly what grade you’re getting before the ring is made. The certificate ships with every finished piece.

This kind of transparency is part of a broader commitment — see why customers choose us, or read what they say.

Ring styles

Lab-grown diamonds suit every classic engagement ring style. We make the following in 18K gold:

• Round solitaire — one center stone in a prong or bezel setting. The most timeless option and the most accessible entry point. A well-cut 0.5ct stone in a clean solitaire delivers more visual impact than a larger, poorly cut stone in a busier setting.
• Oval halo — an oval lab-grown diamond surrounded by a ring of smaller diamonds. Visually larger than the carat weight suggests. One of the most popular designs for buyers who want maximum presence at a controlled price.
• Pavé band — a center solitaire with small diamonds set into the band on both sides. Adds sparkle across the full ring, not only at the center. Works equally well in white, yellow, or rose gold.
• Three-stone — a center diamond flanked by two smaller stones. Traditionally represents past, present, and future. Creates a substantial, layered look that photographs exceptionally well.
• Custom design — have a specific style in mind? Send us a reference image on WhatsApp. We’ll quote the design, confirm materials, and build exactly what you’re envisioning. No design is off the table.

All styles are available in 18K white gold, yellow gold, or rose gold. Yellow and rose gold are priced the same; white gold costs about LKR 15,000–35,000 more, depending on the design, because of the palladium alloy used to achieve its white colour.

Lab-grown vs natural diamond: the honest difference

The difference is origin — and, at current prices, a significant cost gap. A lab-grown diamond is created in a controlled environment using the same carbon-based process that forms natural diamonds underground over millions of years. The end result is chemically, physically, and optically identical. A gemologist examining both under a microscope cannot distinguish them without specialist detection equipment.

Lab-grown diamonds typically cost 40–70% less than equivalent natural stones. That gap has been widening as production efficiency improves. For a buyer who wants the diamond aesthetic — the brilliance, the hardness, the cultural weight — at a sensible price, lab-grown is the rational choice in 2026.

The one real trade-off: lab-grown diamonds have declining resale value as production costs fall. If you plan to wear the ring for a lifetime rather than resell it, this matters less than it sounds. Our lab-grown vs natural diamond guide covers the full comparison — including resale, certification, and the environmental angle.

How to order your ring

Every lab-grown diamond ring is made to order. The process from first message to finished ring:

1. WhatsApp us — tell us your budget, preferred style, and ring size (or we’ll send a ring-size guide if you’re unsure). We’ll send certified stone options within your range.
2. Choose your stone and design — we’ll share graded options with certificate details. Once you confirm the stone and setting, we lock in the design and provide a production timeline.
3. Production — most rings are ready in 2–4 weeks from design confirmation. Complex settings can take up to 5 weeks. We give you an exact date upfront.
4. Delivery — free shipping across Sri Lanka, with international shipping available. The ring arrives with its gemological certificate and packaging.

Frequently asked questions