Sapphire and Diamond Eternity Ring in 18K White Gold

Blue Sapphire and Diamond, in a Repeating Geometric Run

The Geometric Sequence is a sapphire and diamond eternity ring in solid 18K white gold, set with 13 created blue sapphire baguettes that alternate with 13 round lab grown diamonds (3/8 ct total diamond weight) around a slim 2.3 mm band. The east-west baguettes give the ring a clean, geometric rhythm that a row of round stones alone cannot.

Product type

Full eternity ring, alternating created sapphire and round diamond

Metal

Solid 18K white gold

Stones

13 created blue sapphire baguettes and 13 round lab grown diamonds

Total diamond weight

3/8 ct

Sapphire size

3 x 2 mm baguette

Band width

2.3 mm

Setting

Shared-prong, full eternity coverage

Customization

Gold karat, gold color, ring size, sapphire color, carat weight, and stone type

It works as a color-forward alternative to an all-diamond band, at home as an anniversary gift, a stacking ring, or a non-traditional wedding ring. Within our rings collection, this is the design built around a repeating sapphire-and-diamond sequence rather than a single center stone.

An Alternating Baguette-and-Round Pattern

The defining choice is the sequence itself: a baguette sapphire, then a round diamond, repeated without interruption around the full circle. Each baguette is set east-west, with its long axis running across the band rather than along it, so the blue reads as a series of clean rectangles between the brighter rounds. On a 2.3 mm band the profile stays low and even, which keeps the ring practical for daily wear.

Slim prongs sit between neighboring stones and are shared across the corners, holding the row securely without thick metal walls that would crowd the color. Because the stones run the entire band, the pattern stays visible from every angle, and the flat baguette tops let the ring sit close against a partner band in a stack.

Solid 18K White Gold, Lab Grown Diamonds, and Created Sapphires

The band is solid 18K white gold, the same alloy throughout rather than plating over a base metal. The round stones are lab grown diamonds, covered by a diamond test certificate, while the blue baguettes are created (lab-grown) sapphires, which share the chemistry, hardness, and color of mined sapphire and are graded for a consistent blue. Certification applies to the diamonds; the sapphires are lab-created colored stones.

• ◆ Each baguette seat is cut so the long axis sits true east-west and the row stays aligned
• ◆ Shared prongs are filed and polished to hold two adjacent stones without crowding the band
• ◆ The 13 sapphires are color-matched for even blue saturation all the way around
• ◆ Every stone and prong is checked under magnification before the final polish

Adjustable to Your Size, Metal, and Stone Color

This eternity ring is built to order. The configuration shown is a starting point, not a fixed SKU. The following options can be specified before production starts.

• ◆ Ring size: specify your finger size for a true full-circle fit
• ◆ Gold karat: 14K or 18K, with 18K offering a brighter, more durable white
• ◆ Gold color: white as shown, with yellow or rose available
• ◆ White gold finish: rhodium plated over solid white gold; the plating wears gradually with friction, fastest on rings, and can be re-plated
• ◆ Carat weight: the round diamond size can be scaled up or down
• ◆ Gemstone color: created blue sapphire as shown, with created ruby or created emerald available
• ◆ Stone type: lab grown diamond as standard, with natural diamond available on request
• ◆ Diamond grade: F color and VS clarity at minimum, with Excellent cut on the round stones, as our lab grown standard; D color and VVS clarity available on request

For fully custom designs beyond these options, start here →