2.05 ct Natural Heat-Treated Blue Sapphire – Radiant Cut | GIA Certified | Sri Lanka (Ceylon)

A natural 2.05 ct blue sapphire, heat treated, documented by GIA Sapphire Origin Report #5242032116. The report records the weight, measurements of 8.06 x 5.48 x 4.58 mm, color Blue, Heated under Additional Results, a shape of Octagonal and a cutting style of Modified Brilliant Cut — the combination the trade calls a radiant. It gives Sri Lanka as the geographic origin, and prints alongside it that any statement on geographic origin is an expert opinion based on a collection of observations and analytical data.

What the Report Establishes

Everything below can be checked against GIA Report #5242032116 rather than taken on our word. Where something is our own assessment rather than the laboratory's, it says so.

• Weight and measurements: 2.05 carats, measuring 8.06 x 5.48 x 4.58 mm — a rectangular octagonal outline whose length-to-width ratio works out at about 1.47. The weight and the measurements are on the report; the ratio is our arithmetic from them.
• Sri Lankan origin, as GIA's opinion: The report gives Sri Lanka as the geographic origin, and prints alongside it that any such statement is an expert opinion based on a collection of observations and analytical data. We quote it as an opinion and never as a confirmation.
• Octagonal outline, brilliant faceting: The report gives Shape: Octagonal and Cutting Style: Modified Brilliant Cut. That pairing — an octagonal outline finished throughout with brilliant faceting — is what the trade calls a radiant. We quote no facet count: a figure like that belongs to the cut type rather than to this stone.
• GIA documentation: Weight, measurements, color, shape, cutting style and heating are all recorded by an independent laboratory, and the origin is given there as GIA's opinion. You can read the document rather than the listing.
• Loupe clean, by our assessment: We assess this stone as loupe clean — no inclusions visible at 10x magnification. That is our own assessment and not a GIA grade: GIA colored-stone reports carry no clarity grade at all.
• Heat, recorded on the report: The Additional Results field of GIA Report #5242032116 reads Heated. We report that field and what our own examination showed; we go no further. Ask any seller, for any stone, exactly what their document covers.

Buying Guidance

A few practical points worth weighing before you buy this stone:

• Compare price per carat, not just total price. Dividing the asking price by the carat weight is what makes stones of different sizes comparable, and it is the figure to benchmark against other GIA-documented Sri Lankan sapphires.
• Heat is not the only question to ask. Heating is routine in the sapphire trade and the Additional Results field of this report reads Heated. Diffusion is a separate and more consequential treatment, disclosed under different rules in most markets. Ask any seller which treatments their document actually covers — a report that addresses heating has, by itself, addressed heating.
• Work from the millimetres, not from the carat weight. Check 8.06 x 5.48 x 4.58 mm against your setting design before committing to a mounting, since two stones of the same weight can differ in face-up dimensions.
• If buying for a ring rather than a pendant, request additional photos or video in natural daylight, so you can judge the blue with your own eye before you buy.
• Keep the GIA report with the stone. It is the primary record of what the laboratory observed, and it is what an insurer or a later buyer will ask to see.

Learn More About This Gemstone

• Blue Sapphire — The Complete Buyer's Guide to Color, Origin, and Value
• Ceylon Sapphire: The Complete Guide to the World's Most Trusted Sapphire Origin
• How Sapphire Heat Treatment Works
• What Is a GIA Sapphire Report and How Do You Read One?
• Cost of a 2 Carat Sapphire — Pricing, Scarcity, What Your Budget Buys
• Blue Sapphire Engagement Ring Guide

Why Choose this 2.05 ct Radiant-Cut Ceylon Blue Sapphire?

At 8.06 x 5.48 x 4.58 mm this is a stone to measure against the mounting you have in mind; take the millimetres to your jeweler before you settle the design. What the report adds is the part worth paying for: the color call, the shape, the cutting style, the heating, and a geographic origin opinion, all on one document you can check yourself.

Key Benefits of this Natural Blue Sapphire

• Sri Lankan Origin, as GIA's Opinion
  GIA Sapphire Origin Report #5242032116 gives Sri Lanka as the geographic origin, and records the weight, measurements, color, shape, cutting style and heating.
• Octagonal Outline, Brilliant Faceting
  Shape: Octagonal and Cutting Style: Modified Brilliant Cut, as recorded on the report — the pairing the trade calls a radiant.
• Color Recorded as Blue
  The report's color call is Blue. GIA grades no saturation or tone on a colored-stone report, so that is the whole of what the document says about color.
• Heated, and Recorded as Such
  Additional Results on GIA Report #5242032116 reads Heated. Heating is routine in the sapphire trade; the document is what makes this stone's status checkable.
• Hard-Wearing
  Corundum is 9 on the Mohs scale, which measures scratch resistance. The report also prints corundum's toughness as excellent — that is the property that matters for a knock.

Features

• Item #: CG8458
• Carat Weight: 2.05 Carats
• Species/Variety: Corundum / Blue Sapphire
• Shape/Cut: Octagonal — Modified Brilliant Cut (trade name: radiant)
• Dimensions: 8.06 x 5.48 x 4.58 mm
• Color: Blue
• Phenomenon: None
• Treatment: Heated (GIA Sapphire Origin Report #5242032116)
• Origin: Sri Lanka — GIA geographic origin opinion
• Clarity: Loupe clean — no inclusions visible at 10x — our own assessment, not a GIA grade; GIA colored-stone reports carry no clarity grade
• Transparency: Transparent
• Hardness: 9 on the Mohs scale — scratch resistance; a corundum species constant
• Toughness: Excellent — printed on the report as a corundum species characteristic
• Certification: GIA Sapphire Origin Report #5242032116

Care of Your Ceylon Blue Sapphire

• Clean with lukewarm water and mild soap using a soft brush
• Store separately to avoid surface contact
• Remove before heavy physical activity
• Avoid ultrasonic or steam cleaners

What's Included

• GIA Sapphire Origin Report #5242032116
• Gemstone packed in a gem sleeve

Perfect Uses for this 2.05 ct Ceylon Blue Sapphire

• Sapphire engagement ring center stone
• Statement pendant in a halo or bezel setting
• Collectors of GIA-documented Ceylon blue sapphires
• Significant anniversary or milestone commission
• September birthstone gift