Stone Size Guide

SIZE GUIDE

At Fenton & co. we have five stone sizes for each style - Original, Big, Bigger, Biggest and Grand. 

We have chosen to focus on mm rather than carat weight as gemstones can vary hugely in their proportions and depth so providing the size using mm gives a more consistent depiction of surface area and value.

All gemstones to 0.3mm of the stated sizes unless otherwise specified. Carat weights are approximate. 

ORIGINAL
BIG
BIGGER
BIGGEST
GRAND
The Solitaire, The Trilogy and The Vintage
Original Big Bigger Biggest Grand
Round 6 mm 7 mm 8 mm 9 mm 10 mm
Sapphire and Ruby 1.05cts 1.6cts 2.25cts 3.4cts 4.5cts
Emerald and Aquamarine 0.8cts 1.7cts 2.5cts 4.3cts 6.1cts
Cushion 6x6 mm 7x7 mm 8x8 mm 9x9 mm 10x10 mm
Oval 8x6 mm 9x7 mm 10x8 mm 11x9 mm 12x10 mm
Sapphire and Ruby 1.55cts 2.2cts 3.15cts 3.8cts 6cts
Emerald and Aquamarine 1cts 1.6cts 2.25cts 3.75cts 5cts
Emerald 8x6 mm 9x7 mm 10x8 mm 11x9 mm 12x10 mm
Sapphire and Ruby 1.75cts 2.3cts 2.75cts 4cts 6.25cts
Emerald and Aquamarine 1.8cts 2.3cts 3.15cts 4.5cts 5.25cts
The Halo
Original Big Bigger Biggest Grand
Round 4 mm 5 mm 6 mm 7 mm 8 mm
Sapphire and Ruby 0.34cts 0.65cts 1.05cts 1.6cts 2.25cts
Emerald and Aquamarine 0.27cts 0.48cts 0.8cts 1.7cts 2.5cts
Cushion 4x4 mm 5x5 mm 6x6 mm 7x7 mm 8x8 mm
Oval 4x6 mm 5x7 mm 6x8 mm 7x9 mm 10x8 mm
Sapphire and Ruby 0.6cts 1cts 1.55cts 2.2cts 3.15cts
Emerald and Aquamarine 0.52cts 0.85cts 1cts 1.6cts 2.25cts
Emerald 4x6 mm 5x7 mm 6x8 mm 7x9 mm 10x8 mm
Sapphire and Ruby 0.75cts 1.15cts 1.75cts 2.3cts 2.75cts
Emerald and Aquamarine 0.6cts 0.9cts 1.8cts 2.31cts 3.15cts
The Garland
Round Cushion Oval Emerald
3 mm 3x3 mm 3x5 mm 3x5 mm
Sapphire and Ruby
0.25 cts
Sapphire and Ruby
0.25 cts
Sapphire and Ruby
0.25 cts
Emerald and Aquamarine
0.20cts
Emerald and Aquamarine
0.20cts
Emerald and Aquamarine
0.20cts