Composition

Mount Details

  • Construction Cast and assembled with a polished finish
  • Design A sapphire and diamond halo cluster ring in yellow gold and platinum
  • Metal Purity 18ct yellow gold shank with platinum setting head, confirmed by electro-chemical testing
  • Markings 18CT · PLAT · M.B&Cº (º underlined). Under the UK Hallmarking Act 1973, many antique & vintage pieces are legally exempt from hallmarking requirements. This piece has been assessed and is consistent with the period and metal type indicated.
  • Gross Weight 3.1 grams
  • Curated From England

Gemstone Details

  • Total Carat Weight 0.63ct

Measurements and grading are approximate and represent the average of all gemstones in each section, unless actual measurements are noted.

Diamond Screening: All diamonds have been screened and are confirmed to be of natural origin.

Sapphire

  • Quantity · Cut 1 · Round faceted
  • Weight Approximately 0.47ct
  • Actual Dimensions 5.00mm × 5.00mm × 2.42mm
  • Colour B 7/2 — dark slightly greyish blue

Diamonds

  • Quantity · Cut 8 Eight-cut
  • Weight 0.02ct each · Estimated total weight: 0.16ct
  • Approx. Dimensions 1.65mm × 1.65mm × 1.00mm
  • Grades Colour: I (average) · Clarity: SI2 (average)
  • Girdle Various thickness (average slightly thick) · Bruted
  • Note There is a slight variation in the colour and clarity of the diamonds in this group; the noted grades represent an average for all diamonds in this section. One diamond initially failed laboratory-grown screening but natural origin was confirmed via advanced ultraviolet luminescence and photoluminescence spectroscopy instrumentation.

The Heavenly Halo

Mid-Century Modern (1950–1970)
Storied Find #: 049-26
Made approximately 1950–1965, at this ring's centre sits a round-faceted deep midnight blue sapphire, held within a platinum halo of eight-cut diamonds that catch the light with a bright, delicate twinkle. The warm 18ct yellow gold shank contrasts with the cool platinum head. The ring sits close to the hand, elegant and refined.
Story of the Stone

Blue sapphire was the stone of heaven. Across centuries of lapidary tradition, its deep blue was understood as the colour of the celestial realm — associated with truth, faithful devotion, and divine authority. Few stones have carried so consistent a meaning across so many eras and cultures. That significance endures. In the modern era, sapphire is also recognised as the birthstone for September.

Sustainability

Vintage (Approx. 61 years old). By choosing a storied find from the Mid-Century Modern era, you are participating in an ethos that values the enduring spirit of an object. This piece represents a commitment to preservation, requiring no new mining.

Ring Size
O · UK (7¼ US)
✦ Sizable
Need a different size? Ring sizing starts from £40. Leave a note at checkout with your required size and we'll be happy to get in touch to discuss feasibility.

You'll also receive:

  • ✦ Oval Leatherette Case
  • ✦ The Ane Antrin Little Black Book (Hand-bound)
  • ✦ Insured & Tracked Shipping (Signature Required)
£895.00
UK tax included. Local taxes and international duties may apply upon delivery.
1 Available