The Hayek Cut for Gemstones
The Hayek cut is great for light to medium-colored gem rough that’s blocky but not square enough for an emerald cut. Learn how to facet this lively design.
In rough with light to medium colors, the Hayek cut will have outstanding optical performance. However, I would caution against using this design for darker rough material.
This is a fairly simple design to facet. Now that you have it in your repertoire, you should find multiple occasions to cut it for your customers.
Hayek Cut Instructions
- Angles for R.I. = 1.56
- 45 facets + 4 facets on girdle = 49
- 96 index
- L/W = 1.500 T/W = 1.066 T/L = 0.710
- P/W = 0.807 C/W = 0.110
- H/W = (P+C)/W+0.02 = 0.937
- P/H = 0.862 C/H = 0.117
- Vol./W^3 = 0.628
|1||43º||96-06-12-18-24-30-36-4248-54-60-66-72-78-84-90||Cut to temp center point (TCP)|
|2||90º||44-92||Meet with step 3 at edge from step 1|
|3||90º||24-72||See step 2|
|4||75.5º||24-72||Meet at 1-2-3|
|5||75.5º||44-92||Meet at 1-2-3|
|6||42º||09-57||Add the mains last|
|a||42º||04-52||Steps a to f meet at corners|
|T||0º||Table||Meet h-d-e-g and g-f-c-h|
Carl R. Downey
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