Certified quality
Every piece we sell is independently certified. Here's what that means for you, and how to verify it.
All gold jewellery sold by Kalv Jewels carries the Bureau of Indian Standards (BIS) hallmark under the BIS Care Act. The hallmark confirms the purity (karat) of the gold, the jeweller's ID, and the year of hallmarking. You will find the mark stamped on every piece.
The International Gemological Institute (IGI) is the world's largest independent gem certification body. Every lab-grown and natural diamond we sell above 0.30 ct is individually graded by IGI for the 4Cs: Cut, Clarity, Colour, and Carat. The certificate number is laser-inscribed on the stone's girdle.
For natural diamonds above 0.50 ct, we also offer GIA-certified stones on request. The Gemological Institute of America (GIA) invented the 4C grading system and is widely considered the global gold standard for natural diamond grading.
Every order comes with a detailed invoice stating the metal purity, stone weight, and certificate number, plus a Kalv Jewels warranty card covering manufacturing defects for one year. Both documents are required for any warranty claim or insurance valuation.
IGI and GIA grade diamonds on Colour and Clarity scales. Here's what the grades mean in plain language.
| Grade | Name | What it means |
|---|---|---|
| D–F | Colourless | Exceptionally rare. No detectable colour. |
| G–I | Near colourless | Colour difficult to detect. Excellent value. |
| J–K | Faint | Slight warmth visible when viewed face-down. |
| FL–IF | Flawless / Internally Flawless | No inclusions visible at 10×. |
| VVS1–VVS2 | Very Very Slightly Included | Minute inclusions, hard to see at 10×. |
| VS1–VS2 | Very Slightly Included | Minor inclusions, not visible to naked eye. |
| SI1–SI2 | Slightly Included | Noticeable at 10×, usually eye-clean at SI1. |
We recommend VS1–VS2 clarity and G–H colour as the best balance of quality and value for lab-grown diamonds.
BIS Hallmarked Gold
All gold jewellery carries the Bureau of Indian Standards hallmark.
IGI / GIA Certified
Every diamond and moissanite comes with a recognised grading certificate.
Conflict-Free Stones
Natural and lab-grown diamonds sourced responsibly through verified channels.
30-Day Returns
Not right? Return or resize within 30 days — no questions asked.