Call our team on +44 (0)1562 312 224 Independent Family Jeweller Since 1888

1888 CollectionPlatinum Certificated Diamond Trilogy Ring R3-145(.57CT PLUS)


Or from £67.31 per month with Interest free credit

From £68 per month with 0% Finance

In stock —

Order in ? hours ?? minutes ?? seconds to get this item on Wednesday 18th Sep

FREE Next Day delivery
FREE Next Day Click & Collect from 21 Stores Nationwide
Hassle free returns
01-74-001: G/SI2/0.57ct 01-74-003: F/SI2/0.58ct 01-74-004: G/SI2/0.57ct 01-74-005: G-H/SI1-SI2/0.58ct 01-74-006: H/SI2/0.59ct 01-74-007: G-H/SI1/0.60ct 01-74-008: H/SI1-SI2/0.58ct 01-74-009: G-H/SI1-SI2/0.60ct 01-74-011: E-F/SI2/0.59ct 01-74-012: G-H/SI1-SI2/0.58ct 01-74-014: G-H/SI1-SI2/0.58ct 01-74-018: F-G/SI1-SI2/0.60ct 01-74-019: F-G/SI2/0.60ct 01-74-020: F-G/SI1-SI2/0.58ct 01-74-021: E-F/SI1-SI2/0.58ct 01-74-024: G-H/SI1-SI2/0.57ct 01-74-026: G-H/SI1-SI2/0.59ct

Ring Conversion Chart

I 48 15.3mm
J 49.5 15.7mm
50 15.9mm
K 50.5 16.1mm
L 52 16.5mm
M 53 16.9mm
54 17.1mm
N 54.5 17.3mm
55 17.5mm
O 55.75 17.7mm
P 57 18.1mm
Q 58 18.5mm
R 59.5 18.9mm
S 60.5 19.3mm
T 62 19.7mm
U 63 20.1mm
V 64.25 20.5mm
W 65.5 20.9mm
X 67 21.3mm
Y 68 21.7mm
Z 69.5 22.1mm

Looking for more info? Download our printable guide here: printable guide

Bracelet Size Guide

Download guide

Diamond Guide

Download guide

Check stock availability near you


A larger central diamond with twin side stones certificated to a total weight of 0.57 carats, hand set in a platinum four claw trellis bridge.

Each diamond in the 1888 Collection is handpicked and carefully selected by the fifth generation of our family business- this ensures the best quality for the best possible price. Each selected diamond is then independently certificated.

Using the finest precious metals, our skilled craftsmen in Central Birmingham then make the ring by hand and set the stunning diamond to create the perfect ring.

The finished ring is then meticulously inspected once more as only the most brilliant diamond in the most perfect setting will feature in the 1888 Collection.

- Each diamond is hand selected
- Handmade in England by the TH Baker family in the same way for 130 years

Key Features

Brand 1888 Collection Brand Code R3-145(.57CT PLUS)
T H Baker code 017401R Gender Ladies
Material Platinum Colour Silver
Ring Style Trilogy Stone Type Diamond
Stone Colour White Diamond Cut Round
Packaging Official T H Baker Packaging Warranty 12 Month T H Baker Warranty

Interest free credit (0% APR) calculator

You are eligible for finance with this item. Available for all orders over £280 We offer a range of finance terms across our eligible products. The maximum term available is 48 Months 0% APR. Selected items may not qualify for these terms, all options available for this item are listed below in our finance calculator.

1. Choose a deposit amount

  • 10%
  • 20%
  • 30%
  • 40%
  • 50%

Deposit amount:

2. Choose a repayment term (months)

  • 0% APR
  • 6
  • 12
  • 24
  • 15.9% APR
  • 36
  • 48
  • 60

Finance Summary

Deposit to pay today
Loan Amount
Monthly payments of
Cost of loan
Total amount payable

Whether you’re looking to add some sparkle to your wardrobe or searching for the perfect diamond ring for that special someone, at T. H. Baker we offer a range of precious metal rings set with a plethora of certified hand-picked diamonds in our 1888 Collection.

1888 Collection

Frequently Asked Questions

How Do I Use Your Click and Collect Service?

Answer: You can now select click and collect as a delivery option on the checkout page. Orders can be collected from a T. H. Baker store OR from your local post office. You will need to bring your order confirmation number, found on your order confirmation email, and a form of ID when collecting your purchase. Please note if someone is collecting the order on your behalf they must have the order number and provide ID that matches the name on the order.

Where do you deliver?

Answer: We deliver to the United Kingdom, including the Channel Islands and BFPOs, and to a range of international destinations. If you're making an order using our finance options, we can only deliver to your home address.

When will my order be dispatched?

Answer: Orders placed before 4pm are usually dispatched on the same day.

Ask a question