GIA 6.52ct Natural Boulder Fire Opal with Matrix

Title: 43.10 ct natural matrix boulder opal Color/Clarity: opaque Gemstone Type: natural/untreated Carat Weights: 43.1 Size/Dimensions: 31.29 X 25.47 X 7.57 MM Additional Information: Please ,note tha

Nice specimen of boulder opal in its natural host ironstone rock, polished up so you can see the opal veins. Perfect to make a necklace out of. Stone measures 1 3/4" x 1" and weights 17g.

Product ID: 818723095 Product Name: Natural Opal Weight: 14.10 CT. Size: 17.3 x 13.6 x 7 MM. Shape: Free Form Cabochon Color: Multi-Color Clarity:Opaque Luster: Strong Iridescent Gems Origin: Australi

Title: 14.63Ct ! ULTRA RARE !!! TOP FIRE MEXICAN MATRIX OPAL Gemstone Type: natural/unheated Carat Weights: 14.63 Size/Dimensions: 23.53 x 15.60 x 5.53 MM Origin: Mexico Reserve: $100.00 Shipping: Do

Title: 12.76 ct boulder opal Color/Clarity: matrix opal Gemstone Type: natural/unheated Carat Weights: 12.76 Size/Dimensions: 24.42 X 16.34 X 6.19 MM Additional Information: Australia Reserve: $55.00

Title: 14.58Ct Rare top fire mexican matrix opal Gemstone Type: natural/untreated Carat Weights: 14.58 Size/Dimensions: 19.71 x 16.16 x 7.31 MM Additional Information: Please ,note that the item may b

Title: 15.75 Ct huge !!! ULTRA RARE !!! TOP FIRE MEXICAN MATRIX OPAL ! Color/Clarity: Gemstone Type: natural/untreated Carat Weights: 15.75 Size/Dimensions: 21.00 x 16.11 x 8.36 MM Additional Informat

Dimension: 12x7.5cm Natural History of Australian Opal & Mineral Auction by Thousand Planet Auction House featuring the beauty of Boulder Opal art in cabochon cutting and rough, well known Australian

Product Type: Natural Boulder Opal Product Code: O0013 Piece(s): 1 Weight: 4.28 Carats Color: White With Play Of Color Effect Clarity: Opaque with natural inclusions. Shape: Rectangular Cushion Size:

Excellent handcarved piece; 4.5"

Excellent handcarved piece; 4"

Excellent handcarved piece; 3.5"

NATURAL OPAL RHODOLITE GARNET & TOPAZ 925 SILVER EARRING 14K WHITE GOLD COATING; STONE SHAPEROUND CABOCHON CUT & PEAR PORTUGUESE CUT;STONE DIMENSION-5 X 3 MM. , 8 MM. , 1.2 MM.;ITEM WEIGHT-7.76 GRAM;C

Excellent handcarved piece; 5"

3.75 ct Ethiopia Natural Fire Opal. Origin - Ethiopia Reserve: $90.00 Shipping: Domestic: Flat-rate of $12.00 to anywhere within the contiguous U.S. International: Foreign shipping rates are determine

Title: IGI Certified 6.15 Ctw Natural Fire Opal Pear Cab Stone Clarity: Transparent Gemstones: Opal Carat Weights: 6.15 Size/Dimensions: 20.18 x 10.41 x 5.91 mm Additional Information: IGI Online Veri

Title: 7.53 ct "IGI Certified" Natural Fire Opal Brand: Opal Gemstones: Loosegemstone Color/Clarity: VVS Carat Weights: 7.53 Size/Dimensions: 18.77 x 11.74 x 7.89 Additional Information: International

Title: 6.19 ct "IGI Certified" Natural Fire Opal Gemstones: Loosegemstone Color/Clarity: VVS Carat Weights: 6.19 Size/Dimensions: 18.01 x 13.23 x 6.86 Additional Information: International Gemological

Title: 6.19 ct "IGI Certified" Natural Fire Opal Brand: Opal Gemstones: Loosegemstone Color/Clarity: VVS Carat Weights: 6.19 Size/Dimensions: 18.01 x 13.23 x 6.86 Additional Information: International

Product Type: Natural Boulder Opal Product Code: O0016 Piece(s): 1 Weight: 1.73 Carats Color: Black with Play Of Color Effect Clarity: Opaque with natural inclusions. Shape: Triangular polished Size:

Excellent handcarved piece; 2.5"

Title: AAA Quality Natural Fire Opal - 4 Carats Gemstones: Opal Carat Weights: 4 Carats Size/Dimensions: 13X11X7 mm Additional Information: AAA Quality Natural Fire Opal - 4 Carats Reserve: $140.00 Sh

Excellent handcarved piece

Excellent handcarved piece; 3"