Lab-Grown Blue Spinel Ring, 925 Sterling Silver Three Stone
  • blue spinel ring, Lab-grown blue spinel three-stone ring in polished 925 sterling silver
  • blue spinel ring, Close-up of prong-set lab-grown blue spinel stones on a 925 sterling silver ring
  • blue spinel ring, Woman's hand wearing a lab-grown blue spinel three-stone silver ring
  • Polished 925 sterling silver band of a three-stone blue spinel ring
  • blue spinel ring, Blue spinel silver ring presented in a plain black velvet ring box
Signature Collection

Lab-Grown Blue Spinel Ring, 925 Sterling Silver Three Stone

  • Stone: oval lab-grown blue cobalt spinel centre with two pear side stones
  • Metal: 925 sterling silver with a bright polished white-silver finish
  • Band: tapered plain band on a closed shank, no pave and no halo
  • Sizes: true US sizes 5 to 9, about 2.5 g light everyday weight
$83.00
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Product Details

Lab-Grown Blue Spinel Ring, 925 Sterling Silver Three Stone

Oval Lab-Grown Blue Spinel · Pear Side Stones · True US Sizes 5–9
Four-Prong Three-Stone Head · Tapered Polish Band · 2.5 g Light Everyday Weight
925 Sterling Silver
Lab-Grown Blue Spinel
Three-Stone Setting
Oval Centre Stone
US Sizes 5–9
About 2.5 g

Category:
Rings, Silver Rings, New Arrivals

Design Story: Three Stones in One Clean Line

This blue spinel ring is built around a single idea: one large oval stone, held up by slim prongs, with a smaller pear-shaped stone on each side so the whole head reads as one continuous line across the finger. The centre stone is lab-grown blue cobalt spinel, a deep royal blue that stays saturated in daylight rather than washing out to violet.

The band is deliberately plain. It tapers slightly towards the head, so the three stones sit on the thinnest part of the ring and take the light without competing with engraving, pave or a halo. Because the shank is closed and the profile is low, the ring turns easily on the finger and sits flat under a glove or a sleeve.

The supplier lists the style as a light-commuter ring, and the 2.5 g weight matches that brief: enough metal to feel solid, not enough to feel heavy after a full day of typing, cooking or travelling.

Three-stone lab-grown blue spinel ring design in 925 sterling silver

Prong tips and polished gallery rail of a 925 silver blue spinel ring

Craftsmanship: Prongs, Gallery Rail and a Smooth Closed Shank

The centre stone sits in four slim prongs rather than a bezel, so more of the pavilion is open to light and the blue reads brighter from the side. Each pear-shaped side stone is held in the same polished silverwork, and a continuous gallery rail joins the three settings so there is no gap where the stones meet.

Under the head, the rail is rounded and polished, which keeps the underside of the ring from catching on hair, knitwear or a towel. The junction between the head and the shank is smoothed rather than left as a visible step, and the inside of the band is polished as well, not left rough from casting.

The shank is closed, which means this blue spinel ring keeps its round shape instead of bending open at the bottom. That is the structure you want for everyday wear, because an adjustable open band can distort over time and sit less comfortably.

10 × 8 mmCentre Stone
2.5 gRing Weight
US 5–9Sizes

Specifications

Metal925 sterling silver, bright polished finish (supplier-listed, electroplated)
Centre StoneLab-grown blue cobalt spinel, oval faceted, about 10 × 8 mm (supplier-listed)
Side StonesTwo pear-shaped lab-grown blue spinel stones, one on each side
SettingFour-prong centre setting with a shared three-stone gallery rail
BandTapered plain polished band, no pave, no halo, no engraving
ShankClosed fixed shank (not adjustable)
SizesUS 5, 6, 7, 8, 9
Inside Diameter15.8 / 16.6 / 17.4 / 18.3 / 19.1 mm for US 5 / 6 / 7 / 8 / 9 (supplier size chart)
Inside Circumference51 / 53 / 55 / 58 / 60 mm for US 5 / 6 / 7 / 8 / 9 (supplier size chart)
Approx. WeightAbout 2.5 g (supplier-listed)
Sold AsOne ring; choose one size
PresentationShown in supplier photos in a plain black velvet ring slot box; actual packaging may vary

The Stone: What Lab-Grown Blue Cobalt Spinel Is

Spinel is a single-crystal gem material that occurs naturally in blue, red, pink and violet. The stones in this blue spinel ring are lab-grown, which means they are grown in a laboratory rather than mined, while keeping the same crystal structure and optical behaviour as natural spinel.

Cobalt spinel is the name used for spinel with a strong blue body colour driven by cobalt rather than by iron or titanium. In this ring it is the centre stone: an oval cut with a large table, so the colour reads as a flat, even royal blue instead of a patchy mix of light and dark zones.

The supplier lists the stone as lab-grown blue cobalt spinel and offers a separate laboratory certificate on request for an extra fee. A certificate is not included with the standard order, so we do not describe this ring as certified.

Prong-set lab-grown blue spinel stones on a 925 sterling silver blue spinel ring

Lab-grown blue spinel ring styled on a woman's hand in neutral knitwear
EverydayWear it alone on the ring finger with a plain knit or a white shirt.
WorkThe tapered band sits flat, so it works under gloves and sleeves.
EveningLet the blue carry the colour and keep the rest of the jewellery silver.

blue spinel ring, Blue spinel silver ring in a plain black velvet box with a polishing cloth

Gift and Packaging

The supplier photographs this blue spinel ring in a plain black velvet ring slot box, and that is the presentation we show here. A plain polishing cloth is useful for restoring the shine on the silver band after normal wear.

A deep blue centre stone, two pear-shaped side stones and a band that stays quiet — a ring that reads as a decision rather than an accessory.

BirthdayA single-statement ring for a milestone month
AnniversaryThree stones, one line, one shared date
Just BecauseSmall enough to wear every day

Retail and Wholesale

Retail

The price shown above is for one blue spinel ring in the size you select. All five sizes use the same design, the same 2.5 g weight and the same presentation, so the only decision is the ring size.

Wholesale

Bulk quantities are quoted by size mix and quantity. Contact us with the sizes and quantities you need and we will confirm the lead time before you order.

Browse our wholesale jewelry page or contact MIRAMETAL with your quantity and destination.

Frequently Asked Questions

Is this ring really 925 sterling silver?

The supplier lists the material as 925 silver and the supplier’s own quality sheet states a 925 silver standard. We describe the metal as 925 sterling silver based on that supplier information; we do not claim an independent precious-metal certificate.

Are the stones natural?

No. The centre stone and the two side stones are lab-grown blue cobalt spinel. The supplier lists them as lab-grown spinel, and we state that clearly so the price and material are unambiguous.

Which size should I choose?

Sizes follow US sizing: US 5 is about 15.8 mm inside diameter, US 6 about 16.6 mm, US 7 about 17.4 mm, US 8 about 18.3 mm and US 9 about 19.1 mm. If you already own a ring that fits, measure its inside diameter and compare with those numbers.

Can the band be adjusted?

No. The shank is closed, so the ring cannot be bent open without risk of damage. Choose the size you need when ordering.

Does the ring come with a certificate?

A laboratory certificate is not included with the standard order. The supplier can arrange a certificate separately for an additional fee, so we do not advertise this ring as certified.

Is a luxury branded box included?

No. The supplier photographs the ring in a plain black velvet ring slot box, and the presentation you receive may vary. We do not claim a branded box.

Silver Ring Care

Wear

Put the ring on after lotion, perfume and hand sanitiser have dried.

Store

Keep it dry in a soft pouch or a closed box, away from other metal pieces.

Clean

Use a soft polishing cloth on the band of your blue spinel ring; avoid abrasive pads and harsh dips.

Avoid

Remove it before swimming, cleaning, gardening or gym sessions.

Sterling silver is an alloy, and any silver can develop a darker patina over time. That is a normal surface change rather than a fault. The sterling silver standard explains the 92.5% silver content, and the spinel mineral page covers why spinel keeps its colour well.

Why Choose MIRAMETAL

Clear MaterialsLab-grown stones stated as lab-grown, never disguised
Real SizesUS 5 to 9 with supplier inside-diameter data
No Invented ClaimsNo invented certificates, weights or approvals
Global ShippingServing the USA, Canada, UK, Europe and Australia
Gift FriendlyPlain presentation box shown in the photos
Wholesale SupportBulk sizes and quantities quoted directly

Choose Your Size for the Blue Spinel Three-Stone Ring

One ring, five US sizes, one clean three-stone line. Browse more silver rings, our gemstone jewellery, or see what is new in new arrivals.

Hands holding a lab-grown blue spinel ring in 925 sterling silver

One oval blue stone, two pear side stones, one band that stays out of the way.

Rings · Silver Rings · Sterling Silver Jewelry · Birthday Gifts · Engagement

Metal, stone, weight, sizes and dimensions are based on supplier-provided product information. The stones are lab-grown blue cobalt spinel; a laboratory certificate is not included with the standard order. The ring has a closed shank and cannot be adjusted. Presentation packaging may vary, and sterling silver can develop a patina over time.

Care Guide

Proper care keeps your jewelry and custom metal pieces radiant for years. Avoid direct contact with harsh chemicals and perfume, and store pieces in a dry place when not in use.

Shipping & Returns

We provide secure worldwide shipping for all custom pieces. Eligible non-custom items enjoy hassle-free 30-day returns.

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