The Madison - Edwardian No Heat Sapphire Old Cut Diamonds 18k Gold Ring GIA Report Included

Antique Sapphire Diamond Ring - Gemstone Engagement Ring - GIA Graded No Heat Natural Sapphire - Accent Old Mine and Mazarin Cut Diamonds - Gemstone Engagement or Fashion - September Sapphire Birthstone

A striking genuine antique Sapphire Diamond ring in a beautiful silvetop yellow gold mounting.  In the center we can see a sapphire and old cut diamonds are set around halo style.  This ring was sent for grading the the prestigious GIA Gemological laboratory and comes with a sapphire gemological report indicating that this is a natural untreated sapphire which is quite rare. The sapphire is surrounded but some very old cut diamonds old mine cut and some mazarin cuts.  on the sides of the shank we can see some lovely engraving work.  We estimate the time of production of this stunning piece to the early 1900's.  This beautiful ring can be worn as a lovely fashion ring or will make a beautiful gemstone engagement piece

Gemstones:

One oval cut sapphire 1.55 carat by formula, GIA Grading Shape - Oval; Cutting Style: Crown - Brilliant Cut, Pavillion - Step Cut; Transparency - Transparent; Color Dark Blue, Species - Natural Corundum; Variety - Natural Sapphire, Treatment - no indications of heating.  Under light the stone shows bright blues, when not under direct light stone is dark blue, please refer to the on hand photographs attached.  GIA report number 2205172643

Accent Stones - ten very old cut diamonds mostly old european cut with a few mazarin cut,  we estimate total diamond weight to be around 0.85ct, this is a rough estimate calculated by formula due to the older rustic cuts

Metals: hallmarked 18k gold with silvertop

Ring Size: 6.75

Total Weight: 4.0g

Measurements: 13.7x13mm ring top, base of the shank 2mm

Hallmarks: 18k

Time of production: early 1900s

Items included: GIA report, a lovely new ring box

SKU: JA3385