Understanding the credentials behind every diamond and jewellery piece you purchase. Transparency is the foundation of our trust.
At Jhunjhunwala Diamonds, certification is not optional—it is the standard. All solitaire diamonds are certified by internationally recognised independent laboratories: GIA, IGI, and HRD. Every single piece is additionally checked and verified by our in-house gemologists before it reaches you.
We take pride in guaranteeing 100% genuine and verified diamond and gold jewelry. Each certificate contains verified QR code scans directly linked to official laboratory servers.
A diamond's value is determined by its 4Cs: Cut, Colour, Clarity, and Carat weight. Since no two diamonds are identical, the grading of these characteristics can vary from one observer to the next. An independent, third-party certificate removes all subjectivity and provides you with an authoritative, verifiable assessment of exactly what you are purchasing.
Without a certificate from a trusted laboratory, there is no reliable way to know whether a diamond's stated grade is accurate, leaving buyers entirely at the mercy of a seller's assessment. A reputable grading report is your guarantee of quality and your reference point for future valuations, insurance, and resale.
Expert Perspective: While many independent laboratories exist, not all command equal respect for consistency and rigor. The most internationally recognised and trusted labs are GIA, IGI, SGL, and HRD. At Jhunjhunwala Diamonds, we certify exclusively through these four institutions.
We certify our products exclusively through standard-setting authorities to assure genuine specifications.
The GIA is the world's foremost authority on diamonds, coloured stones, and pearls. It invented the 4Cs grading standard that the entire industry follows today. As a non-profit institution with no commercial diamond interests, its reports are the ultimate benchmark for objectivity.
The IGI is the world's largest independent diamond and jewelry grading organization. It stands out by offering comprehensive scientific grading for mounted jewelry as well as loose diamonds, making it highly accessible and widely trusted across the Indian retail market.
Solitaire Gemological Laboratories (SGL) is one of India's most prominent independent grading labs with roots deeply embedded in the Indian jewellery trade. Well-regarded for mounted diamond jewellery certification, they operate extensively across domestic hubs.
HRD Antwerp is directly linked to the Antwerp World Diamond Centre (AWDC), representing the historic Belgian diamond capital heritage. It issues diamond reports fully compliant with international rules (IDC), carrying standard-setting European prestige.
Government of India Mandated Purity Mark
The Bureau of Indian Standards (BIS) Hallmark is the Government of India's mandated purity mark for gold jewellery, serving as the definitive assurance that the metal in every piece meets the exact purity standard it bears.
All gold mounts and diamond jewellery pieces at Jhunjhunwala Diamonds carry mandatory BIS Hallmarking, in full compliance with the Government of India's hallmarking regulations.
Our Standard: Jhunjhunwala Diamonds offers fine jewellery across multiple gold purity tiers (14K, 18K, 22K)—each piece fully BIS Hallmarked, ensuring the exact gold content is independently verified, laser etched, and guaranteed.
A grading report is a detailed scientific analysis of your diamond. Here is what each element means and why it matters to you as a buyer.
| Certificate Element | What it Measures | JJD Recommendations / Industry Sweet Spots |
|---|---|---|
| Cut Grade | Brilliance, fire, and scintillation. | Excellent or Ideal cuts are highly recommended for the best sparkle and light performance. |
| Colour Grade | Presence of natural yellowish tint (D to Z). | G–H represents the 'sweet spot'—practically colourless to the naked eye while offering a much more accessible price than D–F. |
| Clarity Grade | Internal inclusions or surface blemishes. | VS2 and SI1 are eye-clean (inclusions invisible without a 10x loop), representing outstanding value. |
| Carat Weight | The physical weight of the diamond (1ct = 0.2g). | Measured precisely to the hundredth of a carat (0.01ct), preventing rounding errors. |
| Fluorescence | Reactivity and blue glow under UV light. | None or Faint fluorescence is ideal. Medium to Strong fluorescence can occasionally haze colourless diamonds in bright sunlight. |
| Polish & Symmetry | Facet surface smoothness and alignment. | Excellent in both contributes to the maximum light refraction and symmetry of the stone. |
A certificate is not merely a document, it is the written promise that what you see is exactly what you get. At Jhunjhunwala Diamonds, we believe every customer deserves that certainty.
Jhunjhunwala Diamonds · Our Philosophy
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