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Oval-cut Diamond Engagement Ring in Platinum

Style # 66915
2 Carat

Masterfully cut and crafted, this striking oval diamond is proof that regardless of the size, a Tiffany diamond will always appear more radiant than others. The simple and delicate band paired with the timeless, elongated shape of the diamond create a ring that is striking in its simplicity.



At Tiffany, we ethically source our diamonds. Integrity and social responsibility are at the core of our sourcing practices.

Priced from 11800.0000

Pricing is based on the gemological characteristics of each stone, including cut, color, clarity and carat weight. The lowest price shown reflects current inventory with your requested gemological criteria.

Ring 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
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
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.

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Ring Resizing

We offer complimentary resizing for all Tiffany engagement rings.

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Tiffany Fancy Shapes

Tiffany fancy shape diamonds are cut to exacting proportions to unveil the true shape of a rough diamond. Set in sleek platinum bands, these diamond shapes—from an oval to a pear shape—exemplify Tiffany’s expertise in technical craftsmanship and timeless design.
Tiffany & Co. Responsbily Sourced Sustainability

Responsibly Sourced

At Tiffany, we’re committed to sustainable luxury. In a significant step for diamond transparency, we now provide provenance information—region or countries of origin—for every newly sourced, individually registered diamond we set.

Customize Your Ring

A unique love deserves a unique ring. Our experts can help you, at no additional charge, customize a ring with your choice of diamond, setting and personal inscription.

Tiffany & Co. Customize Your Ring with a Diamond Expert