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Two Diamond and Black Onyx Circle Pendant in 18k Gold, 16–18"

Description & Details

Graphic angles and clean lines blend to create the beautiful clarity of the Tiffany T collection. This circle pendant features black onyx, a unique variety of quartz found in nature. This striking pendant is traced with scintillating diamonds, resulting in a modern design with a smooth finish and high polish.

Graphic angles and clean lines blend to create the beautiful clarity of the Tiffany T collection. This circle pendant features black onyx, a unique variety of quartz found in nature. This striking pendant is traced with scintillating diamonds, resulting in a modern design with a smooth finish and high polish.

  • 18k gold with black onyx and round brilliant diamonds
  • Circle, 16 mm diameter
  • Carat total weight .05
  • Adjustable, 16-18" chain
  • 18k gold with black onyx and round brilliant diamonds
  • Circle, 16 mm diameter
  • Carat total weight .05
  • Adjustable, 16-18" chain

18YDIONYX T TWO CLPDT1618

18k DI ONYX T TWO CL PDT 16-18IN

Tiffany T Two diamond and black onyx circle pendant in 18k gold.

Size Guide

US Size
Inside circumference (mm)
2
41.7
3
42.9
3.5
45.5
4
46.8
4.5
48.0
5
49.3
5.5
50.6
6
51.9
6.5
53.1
7
54.4
7.5
55.7
8
57.0
8.5
58.3
9
59.5
9.5
60.8
10
62.1
10.5
63.4
11
64.6
11.5
65.9
12
67.2
12.5
68.5
13
69.7

Find your fit

Tiffany & Co. uses standard US rings sizes. Refer to our measurement chart or the ruler found in our size guide.

View & download complete guide
Model displaying ring sizes
Bracelets
Wrist measurements
Extra Small
4.76-5.25 in. 121-133 mm
Small
5.26-5.75 in. 134-146 mm
Medium
5.76-6.25 in. 146-159 mm
Large
6.26-6.75 in. 159-171 mm
Extra Large
6.76-7.25 in. 172-184 mm

Find your fit

Refer to our measurement chart or use the ruler found in our size guide to find the size that suits you.

View & download complete guide
Model displaying bracelet sizes
Length (in)
Length (cm)
16
40.50
18
45.75
20
50.75
24
61.00
30
76.25
36
91.50

Find your fit

Necklaces vary by length and can be chosen to reflect personal preference or style.

Model displaying necklace sizes
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Size Guide

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Tiffany T

Timeless and transcendent, the bold architectural lines of the letter T evoke strength and resilience. Modern and dynamic, Tiffany T square rings, smile pendants, hoop earrings and bar necklaces are crafted in 18k gold, sterling silver and titanium with brilliant round diamonds.

Responsibly Sourced

For more than two decades, we have made dedicated efforts to responsibly source the precious materials we use in our jewelry.