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Cushion Shaped Tanzanite & Diamond Halo Platinum Engagement or Cocktail Ring

sku: 6251-926-734 custom NAGI | 6251-926-734 custom


Found in just one place on earth, the hills of Merelani in northern Tanzania.  Because crystals show different colors depending on viewing direction, cutters can choose bluish purple or the more favored pure blue or violetish blue hue depending on how much weight they want to retain from the rough. Tilt tanzanite and you’ll see three distinct colors in three crystal directions.

A square cushion shape 3.56 Carat, Natural Tanzanite with even color distribution is delicately set with four double claw prongs in the center of this platinum ring. Seventy round diamonds form a halo perimeter and cascade down the split upper shank of this magnificent ring.

Center Tanzanite (shown here)

  • Natural Cushion Modified Brilliant Cut
  • Measures 8.70 x 8.00 x 6.10mm
  • Weighs 3.56 carats
  • Clarity:  Eye-clean
  • Tone:  medium dark
  • Saturation:  vivid
  • Hue: Violetish-Blue
  • Brilliancy:  Excellent
  • Even Distribution

Side Diamonds

  • 70 Round Diamonds = .47ctw
  • F-G Color / VS1-2 Clarity
  • Very Good - Excellent Cut


  • Platinum
  • Prong set
  • 2.7mm shank
  • Weighs 7.5 grams
  • Size 6.5

This is a Special Order item.  The actual price and delivery time will vary dependent on the actual center sapphire chosen. 

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