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4lcs 3750

Tanzanite Heart Shape 10.42 Carats with Strong Color Change

  • Weight: 10.42cts
  • Cut: Heart Shape
  • Color: 50% Blue 50% Violet
  • Clarity: VS1
  • Size: 13.3 x 13 x 9.5
  • Quality: 973/1000

One 10.42 carats heart-shape mixed brilliant tanzanite, blue violet exceptional (50%/50%) color, VS1 clarity, cut grade excellent, measuring 13.3 mm wide, 13 mm long, 9.5 mm deep; with very good polish and very good symmetry. The gem exhibits a strong color change from blue to violet. The overall quality rating of this tanzanite is 973 out of 1000. Tanzanite is color enhanced by heating.

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no other jeweler goes as far for your tanzanite

Steve Moriarty travels to Tanzania for Tanzanite. Not only does he visit the miners at the Tanzanite mines, but buys the rough to bring back to the USA to cut himself.  These gemstones are the ones that we set in the jewelry featured here. What other jeweler goes this far to bring you the most amazing Tanzanite and custom jewelry?

Every piece of Tanzanite jewelry and gemstone from our family has so much work put into it. Don't just buy a gemstone, buy it for the story behind it.


I received the most beautiful pair of round tanzanite earrings in 2 days! I love them. I cannot say enough about this company and the attention I received from them. I would highly recommend them to anyone interested in tanzanite.

- Jane

Excellent customer service. Received expert advice on my purchase. My new earrings are the most beautiful tanzanite gems I’ve ever seen. I look forward to purchasing more tanzanite jewelry from Tanzanite Designs.

- Audree

zero complaints! full praise! :) 
I bought my wife a pair of exceptional oval tanzanite and tsavorite accent earrings and we are extremely happy with the quality of the product. they are more beautiful than expected! my wife is thrilled to wear such high end, sparkly earrings.
the entire process was seamless and packaging was great. steve, thank you for the email and the rest of your crew for a wonderful experience!

- Guy

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