Loose 1.5 carat Gemstones

Carat-and-half gemstones offer dramatic presence with their substantial size, creating stunning centerpieces for fine jewelry. Our collection features magnificent 1.5 ct treasures – each stone meticulously selected for exceptional quality and perfect proportions that maximize visual impact, appealing to collectors seeking impressive gems with excellent investment potential and statement-making presence.
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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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27 items

1.79 Vivid Blue Oval Shape Sri Lanka Sapphire

4,212.00$

1.51 Vivid Blue Cushion Shape Sri Lanka Sapphire

2,651.00$

1.59 Vivid Blue Cushion Shape Sri Lanka Sapphire

2,791.00$

1.41 Vivid Blue Round Shape Sri Lanka Sapphire

2,475.00$

1.90 Blue Pear Shape Sri Lanka Sapphire

2,964.00$

1.88 Vivid Blue Cushion Shape Sri Lanka Sapphire

5,133.00$

1.38 Vivid Blue Oval Shape Sri Lanka Sapphire

3,767.00$

1.93 Purple Oval Shape Sri Lanka Sapphire

1,950.00$

1.95 Yellow Trillion Shape Sri Lanka Sapphire

1,950.00$

1.83 Sri Lanka Yellow Sapphire Cushion Shape

1,200.00$

1.82 Zambia Green Emerald Round Shape

6,916.00$

1.87 Blue Sapphire Cushion Shape GRS

5,000.00$

1.52 Pear Shape Light Blue Sapphire

900.00$

1.82 Oval Shape Vivid Deep Red Ruby

12,776.00$

1.92 Octagonal Shape Intense Green Colombian Emerald ALGT

4,493.00$

1.54 Pear Shape Intense Green Emerald

1,900.00$

1.90 Emerald Shape Vivid Green Emerald

2,000.00$

1.66 Octagonal Shape Deep Blue Sapphire ALGT

900.00$

1.37 Oval Shape Tanzanian Ruby GRS

3,300.00$

1.49 and 1.64 Pair of Round Shape Uralian Demantoid

12,000.00$

1.30 and 1.34 Pair of Round Shape Uralian Demantoid

6,000.00$

1.87 Colombian Green Emerald Octagon Shape

Sold

1.85 and 1.78 Pair of Cushion Shape Burmese Spinel

Sold

1.61 Octagonal Shape Deep Blue Sapphire ALGT

Sold

1.69 Oval Shape Deep Blue Sapphire ALGT

Sold

1.69 and 1.77 Pair of Green Emerald Shape Zambian Emerald

Sold

1.95 Rectangular Shape Tanzanian Blue Sapphire CLG

Sold

FREQUENTLY ASKED QUESTIONS

Why do 1.5 carat gemstones offer exceptional presence in fine jewelry?

At 1.5 carats, gemstones achieve substantial visual impact while maintaining elegant proportions suitable for sophisticated jewelry designs. Their considerable size creates undeniable presence without the potential ostentation of larger stones, striking perfect balance between significance and tasteful elegance. Natural precious stones of this size command attention without overwhelming, making them ideal centerpieces for important jewelry intended to impress without appearing excessive.

How does the price-per-carat change at the 1.5 carat threshold?

Gemstones weighing exactly 1.5 carats typically command 15-25% price premiums per carat over similar-quality one-carat stones, reflecting both their increased rarity and substantial visual advantage. This value inflection point makes high-quality, GIA-certified stones in this weight category particularly desirable for collectors understanding value dynamics. For investment-grade precious stones, this size represents an excellent balance between the liquidity of benchmark weights and the exclusivity of larger sizes.

Which gemstone varieties are particularly impressive at 1.5 carats?

Emeralds display exceptional character at this size, large enough to showcase their unique “jardin” inclusions while achieving impressive presence. Sapphires and rubies reach optimal color saturation without becoming overly dark, displaying their finest characteristics. For rare collectible stones like alexandrite or Paraíba tourmaline, the 1.5 carat size represents a significant milestone where the stone’s distinctive properties become truly impressive while remaining more accessible than larger specimens.