LMG Jewellery

Pricing Calculator

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Tanzanite earrings Pricing Calculator
V1.240626
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Diamond Price Calculator — Rounds

Brilliant cut · Rapaport-based pricing with uplift and clarity adjustment

Price Per Carat
Uplift Applied
Total Price (USD)
Total After Discount (–20%)
Trade Price (£)
Retail Price (to nearest £5)
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Diamond Price Calculator — Fancys

Fancy cut · Pear, Oval, Cushion, Princess & more

Price Per Carat
Uplift Applied
Total Price (USD)
Total After Discount (–20%)
Trade Price (£)
Retail Price (to nearest £5)
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Coloured Gemstone Price Calculator

84 stone varieties · 10 quality grades

Price Per Carat (USD)
Total Price (USD)
Trade Price (£)
Retail Price (Rounded Up to Nearest £5)
Coloured Gemstone — Retailer Quality Guide
Grade Retailers
1–2 F Hinds, H Samuel, Argos, Very, QVC, TJC, Rocks & Co (some better ranges = 4–6)
2–3 Ernest Jones (some better ranges = 4)
3–4 Goldsmiths, Beaverbrooks, Fraser Hart
5–6 Mappin & Webb
7–10 Boodles, Cartier, Tiffany
8–10 Graff, David Morris, Moussaieff
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Standard Gold Items

Weight-banded pricing · 9ct

Reg Price (£)
Fancy Price (£)

All prices based on 9ct product in any single or combination of colours.

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Plain Wedding Rings

Per-gram pricing by metal type

Price (£)

Plain product. Fancy designs incur a surcharge of 15–100%.

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Gold Items — Non Weight-Banded

Fixed rate per gram by item and metal type

Price (£)
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Bespoke Bracelets / Chains

Albion pricing per gram

Price (£)
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Weight Conversion Chart

Multiply the known weight by the conversion factor

From \ ToPlat22ct18ct14ct9ctSilver
Plat10.830.750.600.520.48
22ct1.2110.910.730.630.58
18ct1.331.1010.800.690.64
14ct1.651.371.1910.860.79
9ct1.921.591.451.1610.92
Silver2.091.731.571.261.091