Opal, Diamond, Platinum, White Gold Pendant-Necklace 
The pendant features an oval-shaped opal measuring 23.04 x 16.70 x 5.85 mm and weighing approximately 10.30 carats, enhanced by a round brilliant-cut diamond weighing approximately 0.60 carat, accented by marquise-shaped diamonds weighing a total of approximately 1.20 carats, complemented by full and baguette-cut diamonds weighing a total of approximately 1.15 carats, set in platinum, suspended by a 14k white gold chain. Total diamond weight is approximately 2.95 carats. Gross weight 10.70 grams.
Pendant Dimensions: 1-5/16 inches x 1 inch
Chain Length: 18 inches 

Diamonds:
Avg Color: J-K-L
Avg Clarity: SI
Shape(s): Round Brilliant-cut, Full-cut, Marquise-shaped, Baguette-cut
Count: 1 - 25

Colored Gems:
Type(s): Opal
Shape(s): Cabochon
Count: 1 - 25

Metals:
Platinum
Gold

Overall Condition: Very Good
Condition Notes: Marquise-shaped diamonds fall in the I clarity range. Round brilliant-cut diamond measures 5.51 - 5.49 x 3.38 mm. Marquise-shaped diamonds measure 8.70 x 4.30 x 2.77 mm and 8.50 x 4.50 x 3.23 mm.