There is one question every Indian diamond buyer asks before anything else: how much does it cost?
This guide gives you real 2026 price ranges for lab-grown diamond jewellery in India — broken down by carat weight, shape, colour, clarity, and metal — based on actual IGI-certified lab-grown diamond prices at Inasha Diamonds, Gurgaon. No vague ranges. Real numbers.
Why Lab-Grown Diamond Prices Differ from Natural Diamond Prices
Lab-grown diamonds are chemically, physically, and optically identical to mined diamonds. The only difference is origin — and that difference accounts for a 60-75% price gap in favour of lab-grown. A 1 carat F/VS1 Excellent cut IGI-certified mined diamond ring in 18K gold costs approximately Rs. 3,00,000-Rs. 5,00,000 at Indian retail. The same specification in a lab-grown diamond at Inasha Diamonds costs Rs. 85,000-Rs. 1,20,000. Same IGI certificate, same BIS Hallmark gold, same brilliance. Lab-grown diamond prices have also been declining as CVD production technology improves. 2026 prices are approximately 15-20% lower than 2023 levels, making now an excellent time to buy.
What Drives the Price of a Lab-Grown Diamond in India?
Cut is the most important factor — it determines brilliance, fire, and sparkle. An Excellent cut smaller diamond always outperforms a larger diamond of Good cut. Always prioritise Excellent cut. Colour is graded D (colourless) to Z (warm yellow). D-F is most premium; G-H is near-colourless with no visible difference to the naked eye in a ring setting, at 20-30% less cost. Clarity grades from FL (Flawless) to I3. VS1-VS2 offers the best balance — inclusions visible only under magnification, never to the naked eye. Carat weight drives price exponentially, not linearly — a 2 carat diamond costs 3-4x a 1 carat, not 2x, because larger stones are rarer even in lab-grown production.
Price Guide by Carat Weight — Inasha Diamonds 2026
0.30-0.50 Carat: Rs. 11,000-Rs. 45,000 finished in 14K or 18K BIS Hallmark gold including IGI certificate. Best for stud earrings, everyday pendants, gifting under Rs. 25,000.
0.50-0.75 Carat: Rs. 34,000-Rs. 80,000 in 18K gold or 950 platinum including IGI certificate. Best for engagement rings, solitaire pendants, anniversary gifts.
1 Carat — India's most searched size: Rs. 85,000-Rs. 1,40,000 in 18K BIS Hallmark white gold including IGI certificate. A mined equivalent costs Rs. 3,00,000-Rs. 5,00,000 — a saving of up to Rs. 3,50,000. Best value combination: F-G colour, VS1-VS2 clarity, Excellent cut. Best for engagement rings, solitaire earrings, statement pendants.
1.50-2 Carat: Rs. 1,40,000-Rs. 3,00,000 in 18K gold or 950 platinum including IGI certificate. A 2 carat mined equivalent costs Rs. 8,00,000-Rs. 12,00,000. Best for luxury engagement and wedding rings, statement earrings, anniversary upgrades.
3 Carat and above: Rs. 2,80,000-Rs. 5,50,000 in 18K gold or 950 platinum including IGI certificate. Premium D-F/VVS examples can reach Rs. 6,50,000. A natural 3 carat equivalent costs Rs. 25,00,000-Rs. 50,00,000. The saving at this tier is the most dramatic of any carat weight. Best for luxury bridal sets, heirloom pieces, high-net-worth gifting.
Price by Diamond Shape
Round Brilliant — most expensive per carat, maximum brilliance, most popular globally. Oval Cut — 10-20% less than round, appears larger than its carat weight, the fastest-growing shape in India in 2026. Emerald Cut — 15-20% less than round, architectural and minimal, very on-trend for 2026. Cushion Cut — approximately 15% less than round, soft and romantic. Pear Cut — 10-15% less, excellent for pendants and east-west settings. Princess Cut — 10-15% less, excellent for solitaires and men's jewellery.
Price by Metal Type
14K BIS Hallmark Gold — 58.5% pure, most affordable, most popular in the USA, excellent durability. 18K BIS Hallmark Gold — 75% pure, the Indian fine jewellery standard, richer colour. Most Inasha Diamonds pieces are set in 18K gold. 950 Platinum — 95% pure, most premium, never needs replating, adds approximately Rs. 8,000-Rs. 25,000 versus an equivalent gold setting.
How to Verify Your Diamond Price Is Fair
Every Inasha Diamonds diamond comes with an IGI certificate with a report number laser-inscribed on the diamond's girdle. Visit report.igi.org and enter the number to verify the exact Cut, Colour, Clarity, and Carat weight of your specific diamond — free, from anywhere in the world. Always compare diamonds on identical IGI grades, not just price and carat weight.
Get a Custom Price Quote
Contact Inasha Diamonds for a quote on your specific requirements within 24 hours. Email: help@inashadiamonds.com | WhatsApp: +91 6003557006 | Website: inashadiamonds.com. We ship IGI-certified lab-grown diamond jewellery across India in 3-5 business days, and internationally to USA, UK, UAE, Singapore, Canada and Australia via fully insured DHL/FedEx.
