1.16 ct Natural Heat-Treated Yellow Sapphire – Emerald Cut | GIA Report | Sri Lanka (Ceylon)

A natural 1.16 ct yellow sapphire, documented by GIA Sapphire Origin Report 6247032058. The report gives the colour as Yellow, the shape as Octagonal, the cutting style as Step Cut, and the geographic origin as Sri Lanka — origin as an expert opinion, with a printed disclaimer to that effect. Under Additional Results it records Heated, and nothing further: the report does not say what the heating achieved, and we draw no conclusion from it. The trade calls the pairing of an octagonal outline with step facets an emerald cut; that is the trade's name, not a field of the report.

The report also carries a second comment: "This stone passed GIA's color stability test." That matters more on a yellow sapphire than on most colours. Yellow in corundum can come from colour centres, and some of those are light-sensitive, so GIA exposes the stone to strong light and re-reads the colour; the colour printed on the report is the colour after that exposure. This is a dated laboratory result, not a promise about the future, and it is not a statement about any treatment other than the one the report records.

What the Report States, and What We Add

Field by field, here is what the document carries and what is ours:

• Origin — Sri Lanka: The report gives the geographic origin as Sri Lanka, and prints alongside it that any statement on geographic origin is an expert opinion based on a collection of observations and analytical data. The older trade name for stones from the island is Ceylon; the report does not use it.
• Shape and Cutting Style — two separate fields: The report prints the shape as Octagonal and the cutting style as Step Cut. Those are two different fields and we keep them apart. Step facets are large, flat and parallel, and they present the stone as broad planes rather than as small points of light.
• What the Report Establishes: Species, variety, weight, measurements, shape, colour, transparency and cutting style are findings. Geographic origin is given as an expert opinion, not a finding. The treatment entry reads Heated, with no statement of what the heating did.
• Clarity — our assessment, not a grade: We call this stone loupe clean, meaning we find no inclusions under 10x magnification. That is our own observation. GIA's coloured-stone reports carry no clarity grade, so this figure appears on no document and should be checked against the stone.
• Colour Stability: The report's comments record that this stone passed GIA's colour stability test. The colour GIA printed is the colour the stone showed after that test.

Buying Guidance

A few practical points to consider before purchasing this stone:

• Verify the report: The physical document is headed "Sapphire Origin Report" above the report number — that is the line to check this page against the paper. Confirm the measurements (6.59 x 5.07 x 3.72 mm) and weight (1.16 ct) match before you buy.
• Price per carat: At $702.00 for 1.16 ct, this works out to roughly $605 per carat. Compare price per carat, not just total price, when evaluating alternatives — and compare documents too, since what one seller's paper covers is not what another's does.
• Metal pairing: Yellow and rose gold settings sit close to this stone in tone; white gold and platinum sit against it. Which you prefer is a matter of taste, not of quality.
• Ask what the document covers: This report's Additional Results entry reads Heated. It does not say at what temperature, for how long, or to what effect, and we do not fill those gaps in. Ask any seller, for any stone, exactly what their document does and does not cover.
• Setting considerations: GIA notes that the corners of an emerald cut carry a higher risk of damage than a rounded outline and are better protected by a bezel, a partial bezel or V-shaped prongs. Worth considering for everyday wear.

Learn More About This Gemstone

• Yellow Sapphire — The Complete Buyer's Guide to Colour, Origin, and Value
• Ceylon Sapphire: The Complete Guide to the Sri Lankan Origin
• Emerald Cut Sapphire — The Complete Guide to the Step Cut That Shows Everything
• How Sapphire Heat Treatment Works, and How It Is Recorded on a Report
• What Is a GIA Sapphire Report and How Do You Read One?
• Buying Sapphires for Jyotish (Vedic Astrology) — Requirements, Specifications, and Common Mistakes

Why Choose this 1.16 ct Emerald-Cut Ceylon Yellow Sapphire?

A step cut is built from large flat facets running parallel to the girdle, so it returns light in broad planes rather than in small scattered flashes. It is an open, unfussy face, and the stone measures 6.59 x 5.07 mm across. Whether you prefer that look to a brilliant cut is a matter of taste; neither is a grade, and the report grades neither.

Key Benefits of this Natural Yellow Sapphire

• Origin: Sri Lanka
  Given on the report as an expert opinion, with GIA's printed disclaimer alongside it.
• Octagonal Outline, Step Cut
  The report's two cut fields, kept separate. Large flat facets and an open face.
• GIA-Documented
  Species, weight, measurements, shape, colour and cutting style as findings; origin as an expert opinion; treatment recorded as Heated.
• Colour Stability Test Passed
  Recorded in the report's comments. A dated laboratory result, not a guarantee about the future.
• Mohs Hardness 9
  Very high scratch resistance. Hardness is not the same as toughness, and a step cut's corners are its vulnerable points.

What you are buying is a single unmounted stone and the document that goes with it. The report says what it says, we have marked what is ours, and the rest is a matter of looking at the stone.

Features

• Carat Weight: 1.16 Carats
• Gem Type: Natural Yellow Sapphire
• Shape: Octagonal
• Cutting Style: Step Cut (the trade calls this pairing an emerald cut)
• Origin: Sri Lanka — GIA's expert opinion, not a finding
• Treatment: Heat Treated
• Color: Yellow (the report's only colour word)
• Clarity: Loupe Clean — no inclusions found by us at 10x magnification — our own assessment, not a GIA grade
• Laboratory report: GIA Sapphire Origin Report 6247032058, dated August 14, 2026
• Comments on the report: passed GIA's color stability test
• Mohs hardness: 9 (scratch resistance, not toughness)

Perfect Uses for this 1.16 ct Yellow Sapphire

• Engagement ring center stone in yellow or white gold
• Custom pendant or cocktail ring
• Contemporary bezel or east-west ring setting
• Collectors of Ceylon yellow sapphire
• Anniversary or milestone gift

Care

Clean this sapphire with lukewarm water, mild soap, and a soft brush. Store it separately from other jewelry to prevent scratching, and remove it before heavy activity or manual work. GIA considers ultrasonic and steam cleaners generally safe for heat-treated sapphire; we still prefer not to use them on step-cut stones, because the corners are where a knock does damage. That is our preference, not a warning from the report.

What's Included

• GIA Sapphire Origin Report 6247032058, dated August 14, 2026
• The 1.16 ct emerald-cut Ceylon yellow sapphire, packed in a protective gem sleeve