Tsavorite and diamond cluster ring

Yellow gold cluster (entourage) ring set with 12 brilliant cut diamonds and a intens green Tsavorite
The 12 brilliant cut diamonds are Top Wesselton in colour and have a VS-SI clarity. 
Total diamond weight 0.43 ct.
The 0.73 ct Tsavorite has a beautiful vivid/deep green colour and measures 7 x 5 mm.
The ring is currently size 17¼, Us size 7 mm (cross section) , 54½ mm (circumference), US   size 7¼, GB O½ size  resizing included. 
The diamonds used in this ring are guaranteed to be conflict free diamonds.
The Tsavorite comes with a ALGT Antwerp cert stating the following:

ALGT COLORED STONE IDENTIFICATION REPORT
IDENTIFICATION
Species ................................................................................ Natural Garnet
Variety ....................................................................... Grossular, Tsavorite
DESCRIPTION
Shape & Cutting Style ............................................... Oval, Mixed Cut
Measurements ................................................. 7.13 x 5.11 x 2.62 mm
Carat Weight ............................................................................. 0.73 Carat
Color ............................................................................... Vivid/Deep Green
Transparency ......................................................................... Transparent
ADDITIONAL GRADING CHARACTERISTICS
Color Quality Grade ..................................... Extra Fine Color Quality
COMMENTS
No indication of treatment.
MAIN PROPERTIES OF TSAVORITE
Chemical Composition ................................................. Ca3Al2(SiO4)3
Crystal System ............................................................................... Cubic
Mohs Hardness ........................................................................ 7.0 - 7.5
Specific Gravity ..................................................... 3.55 - 3.73 g/cm3
Optical Character ................................................................... Isotropic
Refractive Index ............................................................ 1.732 - 1.743