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| Weight (Ct) | Low (Commercial) | Mid (Standard) | High (Premium) |
|---|---|---|---|
| 1 Carat | ₹54,120 | ₹61,500 | ₹75,030 |
| 0.75 Carat | ₹40,590 | ₹46,125 | ₹56,273 |
| 0.5 Carat | ₹27,060 | ₹30,750 | ₹37,515 |
| 0.25 Carat | ₹13,530 | ₹15,375 | ₹18,758 |
| 0.1 Carat | ₹5,412 | ₹6,150 | ₹7,503 |
| Month | Average Rate | Price Change |
|---|---|---|
| 01 Jan 26 | ₹61,500 | + ₹2,000 |
| 01 Dec 25 | ₹59,500 | - ₹1,000 |
| 01 Nov 25 | ₹60,500 | + ₹1,000 |
| 01 Oct 25 | ₹59,500 | - ₹1,000 |
| 01 Sep 25 | ₹60,500 | -- |
| 01 Aug 25 | ₹60,500 | - ₹1,000 |
| 01 Jul 25 | ₹61,500 | + ₹1,000 |
| 01 Jun 25 | ₹60,500 | - ₹1,000 |
| 01 May 25 | ₹61,500 | - ₹3,000 |
| 01 May 24 | ₹64,500 | + ₹2,000 |
| 01 Apr 24 | ₹62,500 | + ₹2,000 |
| 01 Mar 24 | ₹60,500 | - ₹1,000 |
Kolkata is one of India’s oldest and most culturally rich jewellery markets. The city blends heritage craftsmanship with evolving modern diamond trends. Buyers in Kolkata value design elegance, purity, and long-term value. This guide explains how diamond prices are determined in Kolkata, how taxes affect final pricing, and how availability varies across the city and major districts of West Bengal.
Diamond pricing in Kolkata follows national and international quality benchmarks. Local jewellers adjust prices based on consumer demand, craftsmanship costs, and market trends.
Diamonds sold in Kolkata are evaluated using four universally accepted quality factors.
Even small variations in these characteristics can significantly change diamond prices.
Kolkata jewellers reference global diamond pricing while adjusting for local demand patterns. The city’s strong preference for handcrafted jewellery influences pricing, especially for intricate designs.
Demand increases during wedding seasons, Durga Puja, and festive months. Bridal diamond jewellery sees higher sales during these periods.
Natural diamonds dominate Kolkata’s traditional and bridal jewellery market. These stones are valued for heritage and long-term ownership.
Lab-grown diamonds are gaining popularity among younger buyers. They offer modern appeal and lower price points while maintaining visual brilliance.
Diamond prices in Kolkata vary based on quality, certification, and carat weight. The following table provides approximate price ranges for loose diamonds commonly available in the city.
| Carat Weight | Approx Price Range (₹) |
|---|---|
| 1 Carat | ₹53,000 – ₹63,000 |
| 0.75 Carat | ₹39,500 – ₹47,000 |
| 0.5 Carat | ₹26,500 – ₹32,000 |
| 0.25 Carat | ₹13,500 – ₹16,200 |
| 0.1 Carat | ₹5,300 – ₹6,300 |
Final jewellery prices increase when gold weight, design complexity, and making charges are added.
Understanding taxes helps buyers estimate the final purchase cost accurately.
GST applies to finished diamond jewellery in Kolkata. The tax is calculated on the combined value of the diamond and making charges. Loose diamonds generally involve minimal tax impact.
Making charges depend on design intricacy and craftsmanship. Traditional Bengali designs often involve fine detailing, which can increase costs.
Buyers should always request a detailed invoice before finalizing the purchase.
Kolkata does not have active diamond mines. Diamonds reach the city through national and international supply networks. Rough stones are processed in Indian cutting centers before distribution to retail markets.
This structured supply chain ensures consistent availability of diamonds across different quality grades.
Kolkata offers strong availability of diamonds across all categories. Buyers can find loose stones, bridal jewellery, engagement rings, and contemporary designs.
Many jewellers provide customization services, allowing buyers to select specific diamonds and designs.
The city has several well-known jewellery shopping districts.
These markets cater to a wide range of budgets and design preferences.
Diamond pricing across West Bengal remains fairly consistent, with slight variations based on local demand.
Kolkata acts as the primary pricing reference for the entire state.
Kolkata offers a rich and diverse diamond jewellery market supported by skilled craftsmanship and reliable supply chains. Buyers benefit from competitive pricing, certified diamonds, and a wide variety of traditional and modern designs. Understanding pricing methods, taxes, and local market dynamics helps ensure a confident and informed diamond purchase in West Bengal’s capital city.