---
title: "Tiffany & Co. Harmony® Diamond Cluster Side Stone Ring Platinum 0.21ct"
type: "product"
brand: "Tiffany & Co"
model: ""
reference: ""
price: 1150
currency: "GBP"
condition: "Pre-owned"
year: ~
category: "Jewellery"
subcategory: "Engagement rings"
availability: "In Stock"
url: "https://thediamondbox.co.uk/tiffany-co-harmony-diamond-cluster-side-stone-ring-platinum-021ct"
image: "https://thediamondbox.co.uk/uploads/original_image/593cd165d98a161a3e468a0dcb57484d.jpg"
updated: "2026-09-24"
---

# Tiffany & Co. Harmony® Diamond Cluster Side Stone Ring Platinum 0.21ct

## Price

**£1,150** (Finance available from £108.2/month)

## Description

Crafted in platinum, this Tiffany & Co. Harmony® ring features a round brilliant cut centre diamond complemented by additional diamonds along its delicately tapered band. Totalling 0.21ct and graded F colour with VS clarity, the ring weighs 3.4g and is presented in size K½.
Part of Tiffany’s celebrated Harmony® collection, the design is inspired by proportion and unity. Its graceful silhouette and understated elegance reflect Tiffany & Co.’s renowned craftsmanship, making it a timeless choice for engagements, anniversaries or a fine jewellery collection.

## Specifications

| Specification | Value |
|---------------|-------|
| Brand | Tiffany & Co |
| Condition | Pre-owned |
| Gender | Her |
| Material | Platinum |
| Ring Size | K 1/2 |
| Weight (g) | 3.4 |
| Diamond Type | Natural Diamond |
| Diamond Cut | Brilliant |
| Diamond Colour | F |
| Diamond Clarity | VS |
| Total Diamond Carat Weight | 0.21 |
| Preloved | Yes |

## About The Diamond Box

The Diamond Box is North London's distinguished destination for luxury watches and gold jewellery since 1997. Visit us at 114 Ballards Lane, N3 2DN, London or call 020 8838 3655.


[View this product on our website](https://thediamondbox.co.uk/tiffany-co-harmony-diamond-cluster-side-stone-ring-platinum-021ct)