Loose 6 carat Gemstones

Six-carat gemstones belong to an ultra-exclusive category of collectors' treasures, representing spectacular natural wonders of extraordinary scale. Our prestigious collection features remarkable 6.0 ct masterpieces – each gem carefully authenticated and evaluated for its exceptional quality parameters and unique character that creates both magnificent aesthetic presence and substantial investment potential for elite connoisseurs.
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Gem type

Gem type

Color

Color

Shape

Shape

Diamond shape refers to the overall outline and facets of a diamond. It’s a crucial factor that affects a diamond’s brilliance, fire, and scintillation – its ability to reflect light and sparkle.

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Origin

Origin

Treatment

Treatment

Carat weight

Carat weight

Diamond weight, also known as carat weight, is a measure of a diamond’s mass. It’s one of the four Cs (carat, cut, clarity, and color) that determine a diamond’s value and price.

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14 items

6.21 Vivid Blue Oval Shape Sri Lanka Sapphire GRS

24,219.00$

6.35 Vivid to Deep Blue Pear Shape Sri Lanka Sapphire GRS

24,765.00$

6.30 Blue Oval Shape Sri Lanka Sapphire GRS

22,932.00$

6.09 Blue Pear Shape Sri Lanka Sapphire GRS

26,522.00$

6.07 Blue Cushion Shape Sri Lanka Sapphire GRS

19,333.00$

5.91 Vivid Purplish Pink Cushion Shape Spinel

4,700.00$

6.11 Cushion Shape Pinkish Red Tanzanian Rhodilite Garnet

2,750.00$

5.77 Oval Shape Tanzanian Tanzanite

2,800.00$

6.28 Oval Shape Tanzanian Tanzanite

2,700.00$

5.89 Oval Shape Tanzanian Tanzanite

2,700.00$

6.08 Oval Shape Tanzanian Tanzanite

2,700.00$

6.13 Round Shape Uralian Demantoid AGL

19,616.00$

6.03 Pair of Oval Shape Brazilian Rubellites

Sold

6.04 Oval Shape Brazilian Rubellite

Sold

FREQUENTLY ASKED QUESTIONS

Why are six-carat gemstones considered museum-caliber specimens?

Six-carat precious stones represent truly extraordinary natural phenomena – existing in perhaps 0.0001% of all gem material and worthy of exhibition in the world’s finest museums. Their remarkable size and presence transcend conventional jewelry applications, establishing them as important cultural artifacts. Natural, GIA-certified gems of this magnitude represent significant achievements of geological perfection, combining exceptional formation conditions with the extraordinary circumstance of surviving both extraction and cutting without fracture or damage.

How does the market for 6 Ct gems operate?

Precious stones of this exceptional caliber rarely appear in traditional retail environments, instead trading through specialized channels connecting important collectors, museums, and investors. Their acquisition typically involves private transactions rather than published pricing, with each stone essentially creating its own market. For authentic, top-quality colored stones of this magnitude, provenance becomes critically important, with documented history often doubling value for gems with distinguished ownership lineage or exceptional origin certification.

What expectations should buyers have regarding ROI for six-carat investment gems?

Fine quality natural gems of 6 carats have consistently demonstrated exceptional long-term appreciation, often outperforming traditional financial investments over similar holding periods. Their genuine rarity ensures consistent demand regardless of economic conditions, with the finest specimens appreciating 5-10% annually in stable markets. For investment-grade precious stones of this significance, working with specialized advisors having established track records in exceptional material provides the best opportunity for optimal selection and maximum potential return on these extraordinary assets.