1.75 ct Natural Unheated Teal Sapphire – Cushion Cut | GIA Sapphire Report 1246017790

A natural sapphire of 1.75 carats, documented on GIA Sapphire Report 1246017790, dated August 03, 2026. The report prints Shape: Cushion and Cutting Style: Modified Brilliant Cut as one field each, and it prints Color: Greenish Blue. In GIA’s notation the final word of a colour is the dominant hue and the -ish word is the modifier, so Greenish Blue describes a blue stone with a green modifier. Teal is Crescent Gems’ own trade name for that colour and is not a GIA field value; we use it because it is the word buyers search for, and we print GIA’s Greenish Blue beside it so the two are never confused.

What GIA Report 1246017790 Records

These are the values printed on the report, reproduced exactly as they appear on it:

• Item Description: One loose stone
• Weight: 1.75 carats
• Measurements: 6.81 x 5.80 x 4.80 mm
• Shape: Cushion
• Color: Greenish Blue
• Transparency: Transparent
• Cutting Style: Modified Brilliant Cut
• Species: Natural Corundum
• Variety: Natural Sapphire
• Geographic Origin: Not Requested
• Additional Results: No Indications of Heating
• Comments: None

The report also carries a Characteristics panel. That panel describes the material, not this particular stone: it prints Mineral: Corundum and Mohs Hardness: 9, which are constants of the corundum species rather than measurements taken from this gem. The panel prints Birthstone: September, and September is the birthstone of sapphire, the variety — the panel sits beside Mineral: Corundum, and corundum also covers ruby, whose month is July.

GIA Report 1246017790 issues no clarity grade, no cut, polish or symmetry grade, and no colour qualifier, intensity, tone or saturation. Its Comments field reads None. We report nothing beyond what those fields say. The report travels with the stone, and it is the document to read.

Our Sourcing Record

GIA Report 1246017790 prints Geographic Origin: Not Requested. That means GIA was not asked to form an opinion on where the stone came from. It is not a finding, it is not an absence of origin, and it is not a doubt about origin — the question was simply not put to the laboratory.

Crescent Gems’ own sourcing record for this stone is that it was mined in Madagascar and bought by us as Madagascar material. That is our record of our own purchase, kept by us. It is not a laboratory determination, GIA has not examined the question, and we do not present it as anything GIA states. The report’s own Geographic Origin field reads Not Requested, and that is what the paper says on the subject.

What Crescent Gems Describes

• Colour — our name for it. We call this stone teal, which is a trade word of ours and not a GIA field value, because GIA’s printed Color reads Greenish Blue — blue-dominant, with a green modifier.
• Treatment — our shorthand. We call the stone unheated. That is our shorthand for GIA’s printed Additional Results: No Indications of Heating, which is scoped to heating and to nothing else.
• Clarity — our assessment. Under 10× magnification we see inclusions. GIA colored-stone reports carry no clarity grade, so this is our eye on the stone and our wording, not a graded result.

The photograph on the report settles structure only: a cushion outline with rounded corners and a brilliant-style facet pattern across the crown. GIA prints Image is not to scale. Color is approximate. beneath it, so the photograph cannot settle the colour, and the printed Color field governs. The photograph is not a clarity statement either.

Features

• GIA Report Item Description: One loose stone
• GIA Report Weight: 1.75 carats
• GIA Report Measurements: 6.81 x 5.80 x 4.80 mm
• GIA Report Shape: Cushion
• GIA Report Cutting Style: Modified Brilliant Cut
• GIA Report Color: Greenish Blue
• GIA Report Transparency: Transparent
• GIA Report Species: Natural Corundum
• GIA Report Variety: Natural Sapphire
• GIA Report Geographic Origin: Not Requested
• GIA Report Additional Results: No Indications of Heating
• GIA Report Comments: None
• GIA Laboratory Report: GIA Sapphire Report 1246017790, dated August 03, 2026
• Corundum Species Mineral: Corundum
• Corundum Species Mohs Hardness: 9
• Sapphire Birthstone Month: September
• Crescent Gems Colour Name: Teal — GIA Report Color: Greenish Blue
• Crescent Gems Treatment Description: Unheated
• Crescent Gems Clarity Assessment: Inclusions visible under 10× magnification
• Crescent Gems Sourcing Record: Mined and bought as Madagascar material

Buying Guidance

• Cleaning. GIA publishes its own cleaning guidance for sapphire and attaches its own conditions to it. We prefer warm water, a mild soap and a soft brush, because we cannot see how your stone will be held once it is set, and a loose or damaged setting is what turns a safe method into a risky one. That preference is ours, not a GIA instruction.
• Setting. We would mount a cushion of this footprint so the corners are covered rather than left proud. That is our recommendation as a seller; GIA publishes nothing about settings for sapphire and this is not drawn from the report.
• Storage. Keep the stone apart from other gems when it is not being worn, so nothing harder is sitting against it in the same compartment.
• Keep the paperwork. GIA Report 1246017790 travels with the stone. Its number can be checked against GIA’s own report-check service, and a reader who checks will see Color: Greenish Blue, Geographic Origin: Not Requested, Additional Results: No Indications of Heating and Comments: None.
• Comparison shopping. If you are weighing this stone against another, read the other stone’s report rather than its listing, and check which laboratory issued it and which fields it actually fills in.
• Ask to see more of it. If you would like more images or a video of this stone before you decide, ask us and we will send them. That offer is ours, and it is not something the report provides.

Learn More About This Gemstone

• Teal Sapphire Buyer’s Guide
• Unheated Sapphire Guide
• GIA Guide
• Cushion Cut Sapphire Guide
• Sapphire Buying Guide

Suggested Uses

• Centre stone for a ring
• Pendant in white or rose gold
• Centre stone in a three-stone design
• A contemporary design of your own

This stone is sold loose, as GIA Report 1246017790 records under Item Description: One loose stone. No setting or mounting is included.