Oval Lab Grown Diamond Shared Prong Ring: Guide – Mapple Gems

← Oval cut lab grown diamond engagement rings

Customer Favourite

Oval Lab Grown Diamond Ring with Shared Prong Band: A Buyer’s Guide

Larger accent diamonds, light between each one, a scalloped edge. What a shared prong band does differently from pavé, and what to check on an oval centre.

Written by the Mapple Gems workshop, Surat · Updated 13 October 2026

Short answer: This ring sets an oval lab grown diamond, E colour and VVS2 clarity with a free IGI report, above a band of larger accent diamonds held between shared prongs. It is made to order in 925 silver or solid 10K, 14K or 18K gold, from 2 to 5 carats. Shared prong lets more light into each accent than pavé and gives the band a scalloped edge.

A diamond band can be built in several ways. Standard pavé uses many small stones on tiny beads. This ring uses fewer, larger accents, each sharing a prong with its neighbour, so light passes between them and the edge of the band scallops gently. The result is bolder and brighter. Our latest order was a 2 carat oval in 14K yellow gold.

Shared prong compared with pavé

	Shared prong	Pavé
Accent size	Larger	Smaller, more of them
Light	Enters between stones	Mostly from above
Look	Bold, scalloped edge	Fine, continuous glitter
Worth knowing	Each prong holds two stones	Beads are tiny and need checks

The one trade-off is in the name: each prong holds two stones. If one prong is bent, both neighbours can loosen. That is a reason for a bench check every two years, not a reason to avoid the style.

What E colour and VVS2 mean on your hand

Lab grown diamond is real diamond — Mohs 10, refractive index 2.42, dispersion 0.044 — and graded on the same scales. E is near the top of the colourless range; VVS2 means inclusions very hard to find even at 10×. On the hand, both read as completely clean and white. Remember that metal changes what you see: diamonds are graded face-down against white but worn face-up in metal. In yellow gold, as our latest customer chose, the metal reflects warmth into the stone, so the difference between the top colour grades is hard to see. White gold shows a top grade most fully.

What the report does not show on an oval

The IGI report gives colour, clarity, measurements, a plot of inclusions and an inscription number. It does not give a cut grade (only rounds get one) and it does not show the bow-tie, the dark band some ovals show across the middle. A rotating video in ordinary light answers both. Check the measurements too: divide length by width; most people prefer an oval between 1.35 and 1.45.

From the workshop

Accent stones are where paperwork stops. No laboratory issues individual reports for small accents in any material, so their quality is the maker’s description. On this ring the accents are lab grown diamonds, like the centre. We think that is worth saying plainly, because many rings sold as “lab grown diamond” name only the centre stone and use another material on the band without mentioning it. Whoever you buy from, it is a fair question: “what material is every stone in this ring, in writing?”