Sir,
Chapter 71 of CETA, 1985 stipulates as follows: -
| 711319 | -- | Of other precious metal, whether or not plated or clad with precious metal: | | | |
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| 71131910 | --- | Of gold, unstudded | kg. | 12.5% | |
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| 71131920 | --- | Of gold, set with pearls | kg. | 12.5% | |
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| 71131930 | --- | Of gold, set with diamonds | kg. | 12.5% | |
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| 71131940 | --- | Of gold, set with other precious and semi- precious stones | kg. | 12.5% | |
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| 71131950 | --- | Of platinum, unstudded | kg. | 12.5% | |
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| 71131960 | --- | Parts | kg. | 12.5% | |
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| 71131990 | --- | Other | kg. | 12.5% | |
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| 71132000 | - | Of base metal clad with precious metal | kg. | 12.5% |
As per Note 13 of Chapter 71 for the purposes of heading 7113 and 7114, the processes of affixing or embossing trade name or brand name on articles of jewellery or on articles of goldsmiths' or silversmiths' wares of precious metal or of metal clad with precious metal, shall amount to 'manufacture' Therefore you can credit of 12.5% duty paid by the manufacturer of unbranded gold jewellery and after branding you can use that credit for payment of duty when you sell the branded jewellery or export it under rule 18.
Similarly clading precious/ semi precious stones on the jewellery will also attract 12.5% duty under sub-heading No.71131940.