Blue Topaz Gemstones - Concave Cut
Premium-grade Sky Blue Topaz gemstones with a concave cut. This type of cut uses long, curved facets that scatter more light towards the centre of the stone.
Gemstones cut in this way tend to be lighter because a considerable amount of material is lost. Cutting concave facets is time-consuming and requires skill, but the end result makes it worthwhile.
Topaz can be challenging to cut because of its perfect cleavage, which allows it to split easily along specific planes if pressure is applied in the wrong direction. This makes it prone to cracking or breaking while being cut and polished.
Cutters must handle topaz carefully, avoiding stress along cleavage planes. This demands exceptional skill and precision, especially when creating intricate designs like a concave cut.
Furthermore, despite its hardness, topaz is also prone to chipping.
Please check the weight and size carefully before confirming your purchase. Some stones have a deeper cut than others.
A 'deeper cut' describes how tall the gemstone is when viewed from the side. It generally means there's more material below the girdle (the widest part of the stone) down to the culet (the pointed bottom).
Details
1. 2 g (10 carats) 1.5 x 1.2 x 0.6 cm £41
2. 2.1 g (10.5 carats) 1.6 x 1.2 x 0.6 cm £43
3. 2.2 g (11 carats) 1.6 x 1.2 x 0.7 cm £44.40
4. 2.3 g (11.5 carats) 1.6 x 1.2 x 0.7 cm £45.90
5. 2.4 g (12 carats) 1.8 x 1.3 x 0.6 cm £47.30
6. 2.4 g (12 carats) 1.5 x 1.2 x 0.8 cm £47.30
7. 2.5 g (12.5 carats) 1.6 x 1.2 x 0.7 cm £48.80
8. 2.6 g (13 carats) 1.6 x 1.2 x 0.7 cm £50.20
9. 3.4 g (17 carats) 1.8 x 1.3 x 0.8 cm £61.70
10. 3.5 g (17.5 carats) 1.8 x 1.3 x 0.9 cm £63.20
