Loose Heated Gemstones

Heated gemstones undergo controlled temperature enhancement to optimize their natural beauty, a traditional process practiced for centuries. Our collection features exceptional heat-treated treasures – from vibrant sapphires to rich rubies – each stone carefully enhanced to perfect its color and clarity while maintaining its authentic character and providing excellent value for discerning collectors.
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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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24 items

6.21 Vivid Blue Oval Shape Sri Lanka Sapphire GRS

24,219.00$

7.92 Blue Cushion Shape Sri Lanka Sapphire

10,296.00$

8.67 Vivid Blue Cushion Shape Sri Lanka Sapphire GRS

49,593.00$

6.70 Vivid Blue Oval Shape Sri Lanka Sapphire GRS

26,130.00$

7.06 Blue Pear Shape Sri Lanka Sapphire GRS

34,876.00$

7.65 Intense to Vivid Blue Cushion Shape Sri Lanka Sapphire GRS

29,825.00$

0.62 Cushion Shape Pair of Vivid Red Mozambique Ruby

1,300.00$

1.82 Oval Shape Vivid Deep Red Ruby

12,776.00$

3.45 Oval Shape Burmese Ruby GRS

21,528.00$

4.02 Oval Shape Burmese Ruby GRS

25,085.00$

1.06 Oval Shape Burmese Ruby

2,100.00$

2.60 Oval Shape Thailand Ruby CGL

10,800.00$

9.38 Heart Shape Thai-Siamese Blue Sapphire

24,900.00$

2.34 Oval Shape Burmese Ruby CGL

15,900.00$

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$

10.53 Oval Shape Tanzanian Tanzanite

4,500.00$

18.88 Oval Shape Tanzanian Tanzanite

6,900.00$

2.36 Cushion Shape Royal Blue Sapphire EGL

2,900.00$

Pair of 5.15 Pear Shape Vivid Red Madagascar Ruby

Sold

9.65 Oval Shape Tanzanian Tanzanite

Sold

10.44 Oval Shape Tanzanian Tanzanite

Sold

FREQUENTLY ASKED QUESTIONS

How does heat treatment affect a gemstone's value compared to untreated stones?

Heat-treated gemstones typically sell for 20-50% less than identical-appearing natural, untreated stones, creating excellent value opportunities for budget-conscious buyers. This price difference makes high-quality heated precious stones accessible to more collectors while still offering exceptional beauty and durability. GIA-certified heated gemstones represent transparent purchases that maintain consistent value when the enhancement is properly disclosed and performed using established, permanent methods.

Which gemstone varieties commonly undergo heat treatment?

Sapphires and rubies frequently receive heat treatment to improve color saturation and clarity, an enhancement practiced for centuries that produces stable, permanent results. Aquamarines often undergo gentle heating to eliminate greenish tones, resulting in the pure blue color most consumers prefer. Tanzanite’s transformation from brown to brilliant blue-violet through controlled heating represents perhaps the most dramatic and universally accepted enhancement in the precious stone market.

How can buyers ensure heat treatment has been properly disclosed?

Always purchase heated gemstones with comprehensive laboratory certification specifying the exact treatments applied and confirming no additional undisclosed enhancements. Reputable dealers provide complete treatment disclosure on purchase documentation, ensuring transparency about the stone’s natural characteristics and enhancements. GIA certification offers the most reliable verification of enhancement status, helping buyers make informed decisions when acquiring these beautiful, valuable, and legitimately enhanced natural gemstones.