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Understanding Carat Weight

See The Size On Your Hand

Approximate gemstone size on a U.S. size 6 finger

0.07 ct 33.10 ct

Carat (ct.) is the standard unit used to weigh natural gemstones, including the certified sapphires, rubies, emeralds, and other loose gemstones in our collection, and one gram equals 5 carats. Every gemstone listed on Jamsora shows its exact carat weight alongside its independent lab certificate, so you always know precisely what you're buying.

Matched pairs: when a listing is sold as two stones together, the carat weight shown is their combined total, not the weight of each individual stone.

Carat weight alone doesn't fully describe how large a gemstone will look once set, since two stones of equal weight can appear different sizes depending on their cut and proportions. For a more reliable sense of a stone's visual size, check its millimeter dimensions (length × width × depth), listed on every product page alongside its carat weight and certificate details.

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Newest Best Selling Alphabetical Price: Low to High Price: High to Low Carat: Low to High Carat: High to Low

Sale

5.95 Carat Natural Untreated Hessonite – Oval

5.95 ct · Oval

$413.33 $495.99 17% OFF

JRO-G342589810

Sale

5.86 Carat Natural Untreated Hessonite – Oval

5.86 ct · Oval

$407.08 $488.49 17% OFF

JRO-G339142678

Sale

6.26 Carat Natural Untreated Hessonite – Round

6.26 ct · Round

$695.78 $834.93 17% OFF

JRO-G337134409

Sale

5.8 Carat Natural Untreated Hessonite – Cushion

5.8 ct · Cushion

$322.33 $386.79 17% OFF

JRO-G243697285

Sale

5.84 Carat Natural Untreated Hessonite – Oval

5.84 ct · Oval

$243.40 $292.08 17% OFF

JRO-G241402939

Sale

6.3 Carat Natural Untreated Hessonite – Oval

6.3 ct · Oval

$350.10 $420.12 17% OFF

JRO-G225529475

Sale

6.46 Carat Natural Untreated Hessonite – Oval

6.46 ct · Oval

$538.50 $646.20 17% OFF

JRO-G210146372

Sale

5.3 Carat Natural Untreated Hessonite – Cushion

5.3 ct · Cushion

$589.08 $706.89 17% OFF

JRO-G163806505

Sale

5.15 Carat Natural Untreated Hessonite – Emerald Cut

5.15 ct · Emerald

$214.65 $257.58 17% OFF

JRO-G127373623

Sale

6.34 Carat Natural Untreated Hessonite – Oval

6.34 ct · Oval

$352.33 $422.79 17% OFF

JRO-G450374785

Sale

5.92 Carat Natural Untreated Hessonite – Cushion

5.92 ct · Cushion

$411.23 $493.47 17% OFF

JRO-G694286686

Sale

5.28 Carat Natural Untreated Hessonite – Cushion

5.28 ct · Cushion

$586.85 $704.22 17% OFF

JRO-G692040352

Sale

5.84 Carat Natural Untreated Hessonite – Cushion

5.84 ct · Cushion

$405.68 $486.81 17% OFF

JRO-G671139206

Sale

5.43 Carat Natural Untreated Hessonite – Oval

5.43 ct · Oval

$377.20 $452.64 17% OFF

JRO-G628975633

Sale

5.78 Carat Natural Untreated Hessonite – Oval

5.78 ct · Oval

$401.50 $481.80 17% OFF

JRO-G620587823

Sale

7.78 Carat Natural Untreated Hessonite – Cushion

7.78 ct · Cushion

$648.53 $778.23 17% OFF

JRO-G610641796

Sale

6.7 Carat Natural Untreated Hessonite – Oval

6.7 ct · Oval

$558.50 $670.20 17% OFF

JRO-G561907878

Sale

6.19 Carat Natural Untreated Hessonite – Cushion

6.19 ct · Cushion

$688.00 $825.60 17% OFF

JRO-G550947773

Sale

6.21 Carat Natural Untreated Hessonite – Cushion

6.21 ct · Cushion

$517.65 $621.18 17% OFF

JRO-G533872188

Sale

6.59 Carat Natural Untreated Hessonite – Oval

6.59 ct · Oval

$457.78 $549.33 17% OFF

JRO-G528560261

Sale

6.55 Carat Natural Untreated Hessonite – Oval

6.55 ct · Oval

$546.00 $655.20 17% OFF

JRO-G519753764

Sale

6.06 Carat Natural Untreated Hessonite – Oval

6.06 ct · Oval

$673.55 $808.26 17% OFF

JRO-G177825888

Sale

6.51 Carat Natural Untreated Hessonite – Oval

6.51 ct · Oval

$452.23 $542.67 17% OFF

JRO-G519833220

Sale

6.08 Carat Natural Untreated Hessonite – Oval

6.08 ct · Oval

$506.83 $608.19 17% OFF

JRO-G335184097

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