No-Oil Emerald Ring
Colombian No-Oil Emerald 20.32 CT
No oil treatment
Over 20 carats · An uncommon scale in Japan
The Story
Emeralds have been treasured since antiquity; Cleopatra is famously associated with their allure. The distinction of this emerald lies in its weight of 20.32 carats without oil treatment.
Oiling is a common clarity-enhancement method for emeralds. Those that have not undergone this treatment are often described as no-oil emeralds.
Colombian origin, no oil treatment and a weight exceeding 20 carats: together, these characteristics make it an uncommon large emerald in the Japanese market.
No-Oil Emerald
No-Oil Emerald
20.32 carats
This Colombian emerald weighs 20.32 carats and is presented at the centre of the ring without oil treatment. Its no-oil status and substantial size are the defining qualities of the jewel.
Ring craftsmanship
Platinum setting
Surrounded by diamonds
Diamonds totalling 3.87 carats surround the central octagonal emerald in Pt900 platinum. Side and back views show the setting, shank and the way the centre stone is secured.
Worn
20.32 carats, shown worn
The emerald and diamond surround create a distinctive outline on the hand. Photographs of the actual ring give a clear sense of the centre stone’s size and the proportions of the complete ring face.
GRS
GRS Gemstone Report
The GRS report identifies a natural emerald of Colombian origin, with CE(O): None in the oil-treatment field. It also records the 20.32-carat weight, octagonal cut and colour description.
THE PARTICULARS
Jewel Details
No-Oil Emerald Ring
- Centre stone
- Natural emerald, 20.32 ct
- Origin
- Colombia (GRS)
- Shape
- Octagonal
- Colour
- Intense to vivid green (GRS)
- Oil treatment
- None — CE(O): None (GRS)
- Laboratory
- GRS
- Accompanying stones
- Diamonds, 3.87 ct total
- Metal
- Pt900 platinum