• Filters

    Filter by

    Availability
    Price
    $
    $
    Gem Size Depth ( d )
    Weight
    Hardness
    Treatment
    Origin
    Luster
    Clarity
    Gem Size Width ( w )
    Gem Size Length ( l )
    Shape
    Grade
    Color
    Clear all
175 of 4578 products
GIA Certified 7.50 ct AAAA Oval (14.16 x 11.68 mm) Natural D'Block Tanzanite GIA Certified 7.50 ct AAAA Oval (14.16 x 11.68 mm) Natural D'Block Tanzanite
Sale
GIA Certified 7.50 ct AAAA Oval (14.16 x 11.68 mm) Natural D'Block Tanzanite
$4,394.99 $1,758.00 USD
GIA Certified 7.78 ct AAAA Oval (13.28 x 10.07 mm) Natural D'Block Tanzanite GIA Certified 7.78 ct AAAA Oval (13.28 x 10.07 mm) Natural D'Block Tanzanite
Sale
GIA Certified 7.78 ct AAAA Oval (13.28 x 10.07 mm) Natural D'Block Tanzanite
$4,553.99 $1,821.60 USD
GIA Certified 6.76 ct AAAA Oval Cut (13.01 x 10.07 mm) Natural D'Block Tanzanite GIA Certified 6.76 ct AAAA Oval Cut (13.01 x 10.07 mm) Natural D'Block Tanzanite
Sale
GIA Certified 6.76 ct AAAA Oval Cut (13.01 x 10.07 mm) Natural D'Block Tanzanite
$3,956.99 $1,582.80 USD
GIA Certified 18.47 ct AAAA Pear (21.42 x 14.36 mm) Natural D'Block Tanzanite GIA Certified 18.47 ct AAAA Pear (21.42 x 14.36 mm) Natural D'Block Tanzanite
Sale
GIA Certified 18.47 ct AAAA Pear (21.42 x 14.36 mm) Natural D'Block Tanzanite
$10,841.99 $4,336.80 USD
GIA Certified 11.55 ct AAAA Pear (17.97 x 12.89 mm) Natural D'Block Tanzanite GIA Certified 11.55 ct AAAA Pear (17.97 x 12.89 mm) Natural D'Block Tanzanite
Sale
GIA Certified 11.55 ct AAAA Pear (17.97 x 12.89 mm) Natural D'Block Tanzanite
$6,758.99 $2,703.60 USD
GIA Certified 8.19 ct AAAA Oval (13.13 x 10.55 mm) Natural D'Block Tanzanite GIA Certified 8.19 ct AAAA Oval (13.13 x 10.55 mm) Natural D'Block Tanzanite
Sale
GIA Certified 8.19 ct AAAA Oval (13.13 x 10.55 mm) Natural D'Block Tanzanite
$4,793.99 $1,917.60 USD
GIA Certified 12.63 ct AAAA Octagon (13.64 x 11.52 mm) Natural D'Block Tanzanite GIA Certified 12.63 ct AAAA Octagon (13.64 x 11.52 mm) Natural D'Block Tanzanite
Sale
GIA Certified 12.63 ct AAAA Octagon (13.64 x 11.52 mm) Natural D'Block Tanzanite
$7,478.99 $2,991.60 USD
GIA Certified 8.31 ct AAAA Oval (13.01 x 10.91 mm) Natural D'Block Tanzanite GIA Certified 8.31 ct AAAA Oval (13.01 x 10.91 mm) Natural D'Block Tanzanite
Sale
GIA Certified 8.31 ct AAAA Oval (13.01 x 10.91 mm) Natural D'Block Tanzanite
$4,868.99 $1,947.60 USD
GIA Certified 10.04 ct AAAA Octagon (13.08 x 10.92 mm) Natural D'Block Tanzanite GIA Certified 10.04 ct AAAA Octagon (13.08 x 10.92 mm) Natural D'Block Tanzanite
Sale
GIA Certified 10.04 ct AAAA Octagon (13.08 x 10.92 mm) Natural D'Block Tanzanite
$5,880.99 $2,352.60 USD
GIA Certified 13.45 ct AAAA Octagon (16.98 x 12.00 mm) Natural D'Block Tanzanite GIA Certified 13.45 ct AAAA Octagon (16.98 x 12.00 mm) Natural D'Block Tanzanite
Sale
GIA Certified 13.45 ct AAAA Octagon (16.98 x 12.00 mm) Natural D'Block Tanzanite
$7,863.99 $3,145.80 USD
GIA Certified 13.15 ct AAAA Oval (16.32 x 13.04 mm) Natural D'Block Tanzanite GIA Certified 13.15 ct AAAA Oval (16.32 x 13.04 mm) Natural D'Block Tanzanite
Sale
GIA Certified 13.15 ct AAAA Oval (16.32 x 13.04 mm) Natural D'Block Tanzanite
$7,688.99 $3,075.60 USD
GIA Certified 7.01 ct AAAA Oval (13.45 x 9.99 mm) Natural D'Block Tanzanite GIA Certified 7.01 ct AAAA Oval (13.45 x 9.99 mm) Natural D'Block Tanzanite
Sale
GIA Certified 7.01 ct AAAA Oval (13.45 x 9.99 mm) Natural D'Block Tanzanite
$4,101.99 $1,641.00 USD
GIA Certified 5.53 ct AAAA Oval (14.14 x 10.03 mm) Natural D'Block Tanzanite GIA Certified 5.53 ct AAAA Oval (14.14 x 10.03 mm) Natural D'Block Tanzanite
Sale
GIA Certified 5.53 ct AAAA Oval (14.14 x 10.03 mm) Natural D'Block Tanzanite
$3,242.99 $1,297.20 USD
GIA Certified 16.02 ct AAAA Heart (15.30 x 16.50 mm) Natural D'Block Tanzanite GIA Certified 16.02 ct AAAA Heart (15.30 x 16.50 mm) Natural D'Block Tanzanite
Sale
GIA Certified 16.02 ct AAAA Heart (15.30 x 16.50 mm) Natural D'Block Tanzanite
$9,372.99 $3,749.40 USD

Our collections

Tourmaline

Explore

Tanzanite

Explore

Opal

Explore
All Gemstone