Image 1 of 12
Image 2 of 12
Image 3 of 12
Image 4 of 12
Image 5 of 12
Image 6 of 12
Image 7 of 12
Image 8 of 12
Image 9 of 12
Image 10 of 12
Image 11 of 12
Image 12 of 12
Art Deco Style Platinum Square Cut Sapphire and Diamond Quatrefoil Ring
Art Deco style platinum ring, the square cut sapphire of 1.05 ct set within a diamond quatrefoil plaque.
The centre stone is square cut rather than oval, which is the harder choice: a square table shows every inclusion and leaves the corners exposed, so it is only used where the stone will carry it. It is rub over set in a plain platinum collet at the centre of a quatrefoil plaque, the four lobes pave set with diamonds and outlined in milgrain, with further diamonds at the shoulders.
Dimensions -
Ring size: UK L / US 5¾ / EU 51
Weight: 4.16 g
Specifications -
Metal: Platinum, PT 950
Certificate: Geneve Gemslab no. GGLG26008Q6972
Certificate date: 30 January 2026
Sapphires -
Cut: Square cut
Colour: Blue
Origin: Sri Lanka
Treatment: Heat
Total carat weight: 1.05 ct
Diamonds -
Cut: Round brilliant cut
Total carat weight: 0.43 ct
Condition :
New, in mint condition, with its laboratory certificate.
Art Deco style platinum ring, the square cut sapphire of 1.05 ct set within a diamond quatrefoil plaque.
The centre stone is square cut rather than oval, which is the harder choice: a square table shows every inclusion and leaves the corners exposed, so it is only used where the stone will carry it. It is rub over set in a plain platinum collet at the centre of a quatrefoil plaque, the four lobes pave set with diamonds and outlined in milgrain, with further diamonds at the shoulders.
Dimensions -
Ring size: UK L / US 5¾ / EU 51
Weight: 4.16 g
Specifications -
Metal: Platinum, PT 950
Certificate: Geneve Gemslab no. GGLG26008Q6972
Certificate date: 30 January 2026
Sapphires -
Cut: Square cut
Colour: Blue
Origin: Sri Lanka
Treatment: Heat
Total carat weight: 1.05 ct
Diamonds -
Cut: Round brilliant cut
Total carat weight: 0.43 ct
Condition :
New, in mint condition, with its laboratory certificate.