AI Tool for Polki Diamond Jewellery Design — Foil-Backed Glow, Not Sparkle

Polki is not "cheap diamond". Polki is the raw, uncut, natural diamond in its original crystal form — the diamond variety in circulation before modern brilliant-cut faceting was invented. Every Polki stone is set on a silver-leaf foil that produces the characteristic soft milky glow. Rendering Polki correctly is the hardest job in Indian jewellery visualisation, and generic AI tools fail it consistently.

Why Polki renders are hard

The visual signature of Polki is diffuse glow, not sparkle. Modern brilliant-cut diamond has 57-58 facets that split incoming light into narrow rainbow beams — you see sharp, discrete flashes. Polki has irregular natural crystal faces plus a silver foil backing that reflects light back through the stone — you see a soft, milky luminance across the entire stone surface.

Generic image models render every diamond as brilliant-cut sparkle because that's what dominates their Western-jewellery training data. Facetra explicitly distinguishes the two — describe a stone as "Polki" and you get diffuse glow, describe it as "round brilliant" and you get faceted sparkle.

The Polki + Kundan combination

In Indian bridal jewellery, Polki is almost always Kundan-set — the goldsmith uses hand pressure (not heat) to press a foil of 24kt pure gold around the base of the stone, forming a raised scalloped border. A single piece can therefore be:

• Jadau-crafted (technique)
• Kundan-set (setting method)
• Polki-studded (stone variety)
• Meenakari-finished (enamel on reverse)

Facetra renders all four techniques in a single piece from a one-sentence prompt. See Difference between Jadau, Kundan and Polki for the craft explainer.

Sample prompts

• "Bridal Polki Rani Haar, 18 uncut Polki chatons, silver-foil backing, Kundan-set scalloped edges, 22kt gold, green meenakari reverse"
• "Polki Chandbali earring pair, crescent frame, seven Polki chatons, pearl drops, ghungroo tassels, macro studio shot"
• "Polki choker, seven-panel construction, oval Polki centres, jaali shoulders, matte 22kt gold, dramatic side lighting"

The Polki workflow

1. Upload the paper sketch or reference photo.
2. Prompt with explicit Polki vocabulary — foil backing, Kundan-set, chaton count, shape (round / oval / pear / heart).
3. Render arrives with correct diffuse Polki glow — not faceted sparkle.
4. Lasso-refine to swap stone shapes (round → pear centre), adjust chaton size or add ruby / emerald drops.
5. Generate the multi-view sheet + bare-metal CAD-ready + BOM + 3D mesh.
6. BOM reads the carat weight from the stone dimensions and returns a live-rate cost.
7. Export the CAD kit — done in under 10 minutes total.

How the BOM handles Polki pricing

Polki carries a scarcity premium — a 2ct Polki centrepiece often costs more than a 2ct equivalent-clarity brilliant-cut diamond because Polki cannot be lab-grown and the foil-backing labour adds cost. Facetra's BOM lets you enter a per-carat rate directly (or take the default range) and returns the material cost for the entire piece plus karigar labour hours.

Modern diamond alongside Polki

Indo-Western designs often mix Polki centres with modern-cut side stones. Facetra renders the mix correctly — Polki centres show diffuse glow, brilliant sides show sharp sparkle. See our companion article on AI diamond jewellery design for the modern-cut vocabulary.

Getting started

Try Facetra with 10 free credits at facetra.studio/signup. The full Polki pillar page with FAQs and workflow: AI Tool for Polki Diamond Jewellery Design.