Diamond and Precious Stone Studding HSN 7102/7103 Reconciliation for Jewellers

A national jewellery chain’s controller is reviewing the diamond-studded ring category for the quarter ending 30 June 2026. The category ran ₹412 crore of stone-embedded jewellery invoices across 411 stores — roughly 47,000 studded pieces at an average consideration of ₹87,700 per invoice. The output tax rows in the consolidated GSTR-1 read 3% on ₹268 crore, 5% on ₹31 crore, 0.25% on ₹109 crore, and 18% on ₹4 crore. On paper the split looks disciplined — the 0.25% row aggregates roughly to what the certification-linked stone-value schedule would predict. But a store-level extract from three tier-2 outlets shows something else. Diamond centre stones on 217 invoices carry HSN 7113 (3%) instead of HSN 7102 (0.25%), a mis-classification that over-collects GST from the customer by 2.75% on the centre-stone value and inflates the 3% GSTR-1 row against the underlying reality. Total exposure across the three stores works out to roughly ₹18.7 lakh of over-collection that requires Section 34 credit notes within the November-following-FY window. This is diamond precious stone HSN 7102 7103 GST jewellery reconciliation at production scale — the discipline that separates a clean GSTR-1 filing from a customer-facing credit-note cascade at year-end.

Quick reference

The reconciliation in one paragraph

A studded gold jewellery invoice is not one supply — it is three or four distinct supplies bundled onto a single bill. The diamond centre stone and the diamond or coloured side stones are goods classified under HSN 7102 (diamonds) or HSN 7103 (precious and semi-precious stones), both sitting in Schedule VI of Notification 1/2017-Central Tax (Rate) at 0.25% CGST + SGST combined. The gold setting is an article of jewellery under HSN 7113 (Schedule V) at 3%. The making charges billed by the karigar are job-work services under SAC 9988 (Notification 11/2017-CTR Entry 26) at 5%. The presentation box, safety plate, or security clasp is a general good under HSN 4819 (paper packaging) or HSN 7326 (steel articles) or similar codes at 18%. Section 15 of the CGST Act requires each line to be taxed at its own rate — the retailer issues an invoice with four distinct tax-rate lines, the GSTR-1 filing aggregates the lines into four tax-rate rows, and the GL recognises revenue by HSN with a per-invoice audit trail linking every stone value back to a certification report or a periodic valuation source.

What the studded jewellery invoice looks like in India — safe illustrative brands

Walk into a large Tanishq showroom in a Bangalore mall on a Sunday afternoon. A customer is buying an engagement ring in the wedding collection — a 22-carat gold shank with a certified 0.85-carat solitaire diamond centre stone (IGI-graded H-VS1) and eight side stones aggregating to 0.24 carat. The store attendant pulls up the piece on the point-of-sale terminal, and the invoice builds line by line. The gold shank weight (5.6 grams of 22-carat) is multiplied by the day’s gold rate to yield the metal value. The IGI certification report for the centre stone specifies a valuation of ₹4.1 lakh at the prevailing per-carat rate for H-VS1 solitaires. The side stones aggregate to ₹68,000 based on the retailer’s periodic price list for VVS-grade melees. Making charges are calculated at 14% of the gold value — reflecting the higher labour intensity of setting-work compared to plain jewellery. A hard-shell velvet-lined presentation box is included at no separate charge. A safety plate is not applicable on this design.

The invoice the customer receives is a four-line document with the box treated as a naturally-bundled composite element. Line 1: gold shank value at HSN 7113 · 3% GST. Line 2: centre stone value at HSN 7102 · 0.25% GST. Line 3: side stones value at HSN 7102 · 0.25% GST. Line 4: making charges at SAC 9988 · 5% GST. The customer sees four rate lines on a single bill; the total invoice carries GST split across three tax-rate rows (0.25%, 3%, and 5%) because the box did not require its own 18% line under the composite framing.

The same invoice pattern repeats across every jewellery retailer that carries studded inventory — Tanishq, Kalyan Jewellers, Malabar Gold & Diamonds, Senco Gold, Joyalukkas, Reliance Jewels, and the regional and family-run stores that dominate tier-2 and tier-3 markets. What varies is the depth of certification and the granularity of the item master. A national chain with an integrated ERP tags every centre stone above a defined carat threshold (typically 0.20 carat and above) to an IGI or GIA certification report captured in the item master, and every certification report ID surfaces on the customer invoice as a traceability reference. A regional retailer without an ERP may rely on an internal valuation sheet with the store manager’s initials as the audit trail — technically valid under Section 15 but far weaker under audit scrutiny.

Coloured precious stones — ruby, emerald, sapphire, and to a lesser extent tanzanite, tourmaline, and topaz — sit in HSN 7103 rather than HSN 7102 (which is diamond-specific), but at the same 0.25% GST rate. A traditional wedding necklace with polki uncut diamonds set alongside kundan-mounted emerald and ruby beads therefore carries three stone lines on the invoice — HSN 7102 for the polki diamonds, HSN 7103 for the emerald component, HSN 7103 for the ruby component — plus the HSN 7113 gold line and the SAC 9988 making-charges line. The proliferation of tax-rate lines on a high-value bridal invoice is a category-specific reconciliation surface that plain gold retailers do not encounter.

The regulatory overlay — Section 393 + legacy 194x

The certification chain around diamond and precious-stone invoicing pulls in TDS obligations that plain gold jewellery does not carry. When a retailer sends a stone to IGI (International Gemological Institute), GIA (Gemological Institute of America), HRD (Hoge Raad voor Diamant), or IIGJ (Indian Institute of Gemmology and Jewellery) for grading and certification, the laboratory issues an invoice for the certification fee. The fee is a professional service — grading against the 4C framework (carat, colour, clarity, cut) per BIS IS 15766:2007 or the equivalent international standard — and is billed with 18% GST under the general services rate.

On the income-tax side, the certification fee falls under Section 393(1) Sl. 15 of the Income-tax Act 2025 — the successor to legacy Section 194J. The applicable payment code in the new TRACES taxonomy is 1005 (fees for professional or technical services) at 10% TDS on the pre-GST fee value, subject to the ₹30,000 aggregate threshold per deductee PAN per financial year. Retailers who route a high volume of stones through a single lab cross the threshold in the first quarter of the FY and thereafter deduct TDS at 10% on every certification payment. The lab reports the receipt in its GSTR-1 under 18% and takes the TDS credit in Form 26AS, and the retailer reconciles the credit at PAN level.

Separately, the karigar workshop that sets the stones into the gold piece is billed for setting labour (not stone value — the retailer supplies the stone to the karigar on job-work basis and receives the completed piece back). The setting labour is taxed at 5% under SAC 9988, and the retailer deducts TDS on the labour payment under Section 393(1) Sl. 4 (legacy 194C) at code 1001 (1% for individual/HUF karigar) or code 1023 (2% for other job-workers). The karigar workshop labour TDS article walks the mechanics in detail.

A worked example — an illustrative studded ring invoice at a national retailer

An illustrative national jewellery chain issues an invoice for a diamond-studded 22-carat gold engagement ring at a metro flagship store. The consideration is ₹8.5 lakh — mid-point of the metro engagement-ring band in the mid-2026 gold-rate environment. The invoice format is representative of Tanishq, Kalyan Jewellers, and Malabar Gold & Diamonds retail practice.

Illustrative — public disclosures do not reveal individual store invoice detail; the figures below are representative of the operating pattern, not actual retailer data. Cross-verify against your own POS export or GSTR-1 tax-rate row before action.

The invoice breaks down as follows.

The customer pays ₹9,05,497 against a rounded consideration of ₹9,05,500, with the residual ₹3 handled as a rounding-off discount under Section 15(3).

The GSTR-1 tax-rate row aggregation for this single invoice reads:

• 0.25% row: taxable value ₹6,16,000 · CGST ₹770 · SGST ₹770 (aggregate of centre + side stones)
• 3% row: taxable value ₹2,39,704 · CGST ₹3,596 · SGST ₹3,596
• 5% row: taxable value ₹33,600 · CGST ₹840 · SGST ₹840
• 18% row: taxable value ₹4,900 · CGST ₹441 · SGST ₹441

Note that the presentation box has been billed separately at 18% because the customer specifically requested a premium box upgrade — a customer-selected item is not naturally bundled under the composite-supply framing of Section 2(30) and must be billed as an independent supply at its own HSN 4819 rate. Had the box been the standard included box, the line would have disappeared into the 3% principal supply and the 18% row would have been absent.

Now scale to a national chain doing ₹412 crore of studded jewellery invoices across 411 stores in a quarter — roughly 47,000 studded pieces at an average consideration of ₹87,700 per invoice. The GSTR-1 filing for the network aggregates approximately 200,000 invoice lines into four tax-rate rows monthly, with every diamond and precious-stone line traceable back to a certification report ID or a retailer periodic price list entry. The GL revenue splits into HSN 7113 (gold), HSN 7102 (diamond), HSN 7103 (coloured stone), SAC 9988 (making), and HSN 4819/7326 (ancillary components) — five distinct revenue accounts that must reconcile to the trial balance monthly.

Three reconciliation findings surface from the network-level monthly run for the quarter. First, 217 invoices at three tier-2 stores classified centre-stone value at HSN 7113 (3%) instead of HSN 7102 (0.25%) — a mis-configured item master at store level that flagged the diamond stones under the gold-setting rate class. Over-collection totals ₹18.7 lakh, requiring Section 34 credit notes within the November-following-FY window. Second, IGI certification lab payments crossed the ₹30,000 aggregate PAN threshold on the second month of the quarter, and Section 393(1) Sl. 15 TDS at 10% was correctly applied thereafter — but two stores had continued paying without deduction for a further 11 days, creating a ₹47,000 short-deduction that requires the retailer to deposit the shortfall with interest under Section 201(1A). Third, an illustrative retailer moved 47,000 studded invoices through the reconciliation and surfaced 1,124 exceptions requiring controller review — a 2.4% exception rate that is typical for a well-configured multi-store network. The mixed-rate jewellery invoice reconciliation article covers the broader multi-rate framework; this article’s stone-specific angle is the certification traceability and the HSN 7102/7103 classification discipline.

Common reconciliation breakages

• Diamond value mis-classified at HSN 7113 (3%) instead of HSN 7102 (0.25%). The single largest over-collection pattern in studded jewellery — a mis-configured item master flags the diamond stone under the gold-setting rate class. Retailer over-collects 2.75% from the customer on centre-stone value; correction requires Section 34 credit notes and GSTR-1 amendment within the November-following-FY window.

• Coloured precious stones (ruby, emerald, sapphire) classified at HSN 7102 instead of HSN 7103. Both codes sit at 0.25% GST so the tax outcome is identical, but the GSTR-1 HSN summary (Table 12) and the GST audit HSN-wise turnover disclosure become inaccurate. The correction is a GSTR-1 HSN summary amendment; no tax impact but audit-trail impact.

• Certification report ID not captured on the invoice line. The stone value is invoiced at HSN 7102 at 0.25% correctly, but the audit trail from invoice line back to IGI, GIA, or HRD certification report is missing. Under Section 65 or Section 66 audit, the retailer cannot substantiate the stone value under Section 15 valuation rules, exposing the whole line to re-assessment.

• Section 393(1) Sl. 15 TDS not deducted on IGI/GIA certification lab payments. Retailers who cross the ₹30,000 aggregate PAN threshold in the first quarter of the FY continue paying without deduction, creating a short-deduction liability with interest under Section 201(1A). Reconciliation control is a per-PAN accumulated-payment tracker that flips the deduction flag when the threshold is crossed.

• Composite versus mixed classification error on the presentation box. A retailer treating a customer-selected premium box as naturally bundled with the ring principal supply under-collects the 18% on the box value. A retailer treating a standard included box as an independent supply over-collects 18% on a bundled item. The invoice-level determination under Section 2(30) versus Section 2(74) drives the classification.

• Rough versus cut and polished diamond confusion at import. Import invoices show HSN 7102 sub-classifications (7102 10 unsorted, 7102 21/29 industrial, 7102 31/39 non-industrial). All sub-codes are 0.25% under GST, but customs valuation and the diamond dollar account operational rules under RBI treat rough and polished differently — a retailer treating imported rough diamonds under the polished sub-code may create RBI reporting mismatches even where the GST outcome is unchanged.

How a reconciliation platform handles this

Terra Insight’s reconciliation platform (TransactIG) treats every studded jewellery invoice as a multi-HSN source event and applies a rate-classifier stage that assigns each line to its HSN- or SAC-anchored rate class before aggregation. The multi-pass matching engine cross-references the invoice-level extract against the GSTR-1 tax-rate rows, the GL revenue by HSN (7113 / 7102 / 7103 / 9988 / 4819), the certification report register, the karigar setting-labour invoices, the certifying-laboratory GST invoices, and the Form 26AS TDS credits for the retailer’s PAN — surfacing exception invoices at store level for controller review before the return is filed. Retailers running the platform typically move from 51% first-pass match to 88% first-pass match on the invoice-to-GSTR-1 reconciliation, with the residual routed to audit workflow rather than to a Section 34 credit-note cascade at year-end. The commercial pillar for the category is jewellery reconciliation software India, and the broader reconciliation software India hub anchors the cross-category architecture.

For retailers building out the full jewellery reconciliation surface, the gold at 3% vs making charges at 5% article covers the base HSN 7113 versus SAC 9988 classification; the bullion vs retail GST supply classification article covers the wholesale-versus-retail treatment overlay; the export jewellery partial 70% realisation article covers the FEMA and EEFC-account interaction for studded jewellery exports; the franchise royalty reconciliation article covers the Section 393(1) Sl. 15 mechanics on the retail side; the wedding purchase invoice vs cash audit article covers the high-value bridal invoice audit-defensibility angle; and the 18 audit-defensible scenarios article rolls the full jewellery reconciliation catalogue into one operating framework. For the GST-side interactions on the ITC accumulation from 18% certification lab inputs against 0.25% stone output supplies, see the broader GSTR-2B reconciliation discipline that surfaces the ITC availability before the Section 54(3) inverted-duty refund working.

The five FAQs below address the operational questions Indian jewellery retailers ask most often when implementing structured HSN 7102/7103 diamond and precious-stone reconciliation.

Terra Insight Editorial Team Reconciliation Infrastructure

Content authored by practitioners with experience at Amazon India, Intuit QuickBooks, and the Tata Group. Meet the team →

Published 1 July 2026

Domain expertise

TDS Reconciliation GST Input Credit Platform Settlements NACH Batch Matching Bank Reconciliation Form 26AS Matching ERP Integrations Enterprise Finance Ops

Reviewed by

NK

Navin Krishnan

Managing Director & Founder — Terra Insight

Ex Amazon India · Intuit QuickBooks · Tata nexarc

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