Tiffany & Co. Platinum Harmony Round Diamond .36 cts. HVS2 Engagement Ring
Tiffany & Co. Platinum Harmony Round Diamond .36 cts. HVS2 Engagement Ring
Tiffany & Co. Platinum Harmony Round Diamond .36 cts. HVS2 Engagement Ring
Tiffany & Co. Platinum Harmony Round Diamond .36 cts. HVS2 Engagement Ring
Tiffany & Co. Platinum Harmony Round Diamond .36 cts. HVS2 Engagement Ring
Tiffany & Co. Platinum Harmony Round Diamond .36 cts. HVS2 Engagement Ring
Tiffany & Co. Platinum Harmony Round Diamond .36 cts. HVS2 Engagement Ring
Tiffany & Co. Platinum Harmony Round Diamond .36 cts. HVS2 Engagement Ring
Tiffany & Co. Platinum Harmony Round Diamond .36 cts. HVS2 Engagement Ring
Tiffany & Co. Platinum Harmony Round Diamond .36 cts. HVS2 Engagement Ring
Tiffany & Co. Platinum Harmony Round Diamond .36 cts. HVS2 Engagement Ring
Tiffany & Co. Platinum Harmony Round Diamond .36 cts. HVS2 Engagement Ring
Tiffany & Co. Platinum Harmony Round Diamond .36 cts. HVS2 Engagement Ring

Tiffany & Co. Platinum Harmony Round Diamond .36 cts. HVS2 Engagement Ring

Regular price $2,950.00 Sale price $1,950.00
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Complimentary Shipping and insurance for U.S and most International Orders

International Orders are subject to local Customs and Duties payable on arrival.


Tiffany & Co. engagement ring from the Harmony collection finally crafted in platinum featuring a round brilliant cut center diamond weighing 0.36 carats H color VS2 clarity. This ring has a...


Tiffany & Co. engagement ring from the Harmony collection finally crafted in platinum featuring a round brilliant cut center diamond weighing 0.36 carats H color VS2 clarity. This ring has a tapered shank design. The original certificate for this ring was lost and cannot be replaced. Diamond is laser inscribed with Tiffany serial number. Ring is fully hallmarked with Tiffany logo, serial numbers and metal content. Accompanied by Appraisal from Tiffany & Co. 

Ring Specifications

  • Brand: Tiffany & Co.
  • Style: Harmony
  • Hallmarks: Tiffany & Co. Pt950 35493549 D0.36ct 
  • Finger Size: 5 ( Can be resized up or down)
  • Metal: Platinum, 4 prong
  • Weight: 3.4 grams

Diamond Specifications

  • Number of Diamonds: 1
  • Diamond Shape: Round
  • Diamond Weight: 0.36 carats
  • Diamond Color/Clarity: H VS2
  • Diamond Inscription: T&Co.Q04220773-Please see image 
  • Current Retail: $2,950

Package Includes

  • Original Appraisal from Tiffany & Co.
  • Original Inner and Outer box with white satin ribbon from Tiffany & Co.
Conversion Chart For Ring Size
Sizes Inside Diameter Inside Circumference
United States and Canada UK, Ireland, Australia, and New Zealand India, China, Japan, South America Italy,
Spain, Netherlands, Switzerland
(in) (mm) (in) (mm)
0       0.458 11.63 1.44 36.5
1/4       0.466 11.84 1.46 37.2
1/2 A     0.474 12.04 1.49 37.8
3/4 A 1/2     0.482 12.24 1.51 38.5
1 B     0.49 12.45 1.54 39.1
1 1/4 B 1/2 1   0.498 12.65 1.56 39.7
1 1/2 C   0.5 0.506 12.85 1.59 40.4
1 3/4 C 1/2   1 0.514 13.06 1.61 41.0
2 D 2 1.75 0.522 13.26 1.64 41.7
2 1/4 D 1/2   2.25 0.53 13.46 1.67 42.3
2 1/2 E 3 3 0.538 13.67 1.69 42.9
2 3/4 E 1/2   3.5 0.546 13.87 1.72 43.6
3 F 4 4.25 0.554 14.07 1.74 44.2
3 1/4 F 1/2 5 4.75 0.562 14.27 1.77 44.8
3 1/2 G   5.5 0.57 14.48 1.79 45.5
3 3/4 G 1/2 6 6 0.578 14.68 1.82 46.1
4 H 7 6.75 0.586 14.88 1.84 46.8
4 1/4 H 1/2   7.5 0.594 15.09 1.87 47.4
4 1/2 I 8 8 0.602 15.29 1.89 48.0
4 3/4 J   8.75 0.61 15.49 1.92 48.7
5 J 1/2 9 9.25 0.618 15.70 1.94 49.3
5 1/4 K   10 0.626 15.90 1.97 50.0
5 1/2 K 1/2 10 10.5 0.634 16.10 1.99 50.6
5 3/4 L   11.25 0.642 16.31 2.02 51.2
6 L 1/2 11 11.75 0.65 16.51 2.04 51.9
6 1/4 M 12 12.5 0.658 16.71 2.07 52.5
6 1/2 M 1/2 13 13.25 0.666 16.92 2.09 53.1
6 3/4 N   13.75 0.674 17.12 2.12 53.8
7 N 1/2 14 14.5 0.682 17.32 2.14 54.4
7 1/4 O   15 0.69 17.53 2.17 55.1
7 1/2 O 1/2 15 15.75 0.698 17.73 2.19 55.7
7 3/4 P   16.25 0.706 17.93 2.22 56.3
8 P 1/2 16 17 0.714 18.14 2.24 57.0
8 1/4 Q   17.5 0.722 18.34 2.27 57.6
8 1/2 Q 1/2 17 18.25 0.73 18.54 2.29 58.3
8 3/4 R   19 0.738 18.75 2.32 58.9
9 R 1/2 18 19.5 0.746 18.95 2.34 59.5
9 1/4 S   20.25 0.754 19.15 2.37 60.2
9 1/2 S 1/2 19 20.75 0.762 19.35 2.39 60.8
9 3/4 T   21.5 0.77 19.56 2.42 61.4
10 T 1/2 20 22 0.778 19.76 2.44 62.1
10 1/4 U 21 22.75 0.786 19.96 2.47 62.7
10 1/2 U 1/2 22 23.25 0.794 20.17 2.49 63.4
10 3/4 V 1/2   24 0.802 20.37 2.52 64.0
11 V 1/2 23 24.75 0.81 20.57 2.54 64.6
11 1/4 W 1/2   25.25 0.818 20.78 2.57 65.3
11 1/2 W 1/2 24 26 0.826 20.98 2.59 65.9
11 3/4 X   26.5 0.834 21.18 2.62 66.6
12 X 1/2 25 27.25 0.842 21.39 2.65 67.2
12 1/4 Y   27.75 0.85 21.59 2.67 67.8
12 1/2 Z 26 28.5 0.858 21.79 2.70 68.5
12 3/4 Z 1/2   29 0.866 22.00 2.72 69.1
13   27 29.75 0.874 22.20 2.75 69.7
13 1/4 Z1   30.5 0.882 22.40 2.77 70.4
13 1/2     31 0.89 22.61 2.80 71.0
13 3/4 Z2   31.75 0.898 22.81 2.82 71.7
14 Z3   32.25 0.906 23.01 2.85 72.3
14 1/4     33 0.914 23.22 2.87 72.9
14 1/2 Z4   33.5 0.922 23.42 2.90 73.6
14 3/4     34.25 0.93 23.62 2.92 74.2
15     34.75 0.938 23.83 2.95 74.8
15 1/4     35.5 0.946 24.03 2.97 75.5
15 1/2     36.25 0.954 24.23 3.00 76.1
15 3/4     36.75 0.962 24.43 3.02 76.8
16     37.5 0.97 24.64 3.05 77.4

30 day returns : No hassle, no cost, no questions asked. 

We want you to be 100% thrilled with your purchase. In case you want to return your purchase, please send an email within 30 days of receipt to:  support@thediamondoak.com and we will email you a pre-paid shipping label with shipping instructions for the return. 

Once we receive the item and original packaging, both in original condition, we will refund you in the same method purchased, with no restocking fees. (International shipments and Custom Orders please see restrictions below)

You may cancel an order at any time prior to shipment. Custom Orders require a non-refundable 50% deposit.  

Authenticity Guarantee.

The Diamond Oak has over 30 years experience buying and selling Diamonds and Pre-Owned Jewelry. Our experts verify all signed and branded pre-owned Jewelry for their authenticity.

The authenticity of any product is guaranteed authentic, or your money back.  

International returns 

International returns can receive a return shipping label within 30 days of receipt. A restocking fee of 2-5% of purchase will be deducted.

Custom Orders:

Custom and Made to Order Items are not returnable.  At our discretion, Partial refunds will be authorized. If we sized your ring, a $100-$300 labor, precious metal charge will be deducted from your refund.

Every designer piece we sell is rigorously inspected and authenticated by our team of experts.  Our extensive expert experience, and exacting authentication methods ensure every piece is a genuine and authentic creation from the designer.   As such, we guarantee every piece to be 100% authentic or your money back.

It sounds like a cliche, but your satisfaction is actually really important to us. Our business philosophy begins and ends with an unwavering devotion to Customer service.  In fact, it’s our favorite facet of the business.

Please see our return policy for Custom, and International orders.

Call  Call: +1 212-799-7153   WhatsApp  WhatsApp: +1 646-470-1805


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