Oval Cut Diamond Guide
The oval cut combines the brilliance of a round with a larger apparent size. Learn why it has become the fastest-growing diamond shape.
What is an Oval Cut Diamond?
The oval cut is a modified round brilliant, elongated along one axis. It features 56-58 facets and was first popularized by Lazare Kaplan in the 1960s. Today, it is one of the most sought-after shapes for engagement rings.
Pros of an Oval Cut
Looks larger: An oval of the same carat weight appears 10-15% larger than a round brilliant because the elongated shape covers more of the finger.
Finger lengthening: The oval's vertical shape creates an elongating effect on the hand, making fingers appear slimmer.
Lower price: Ovals cost 15-25% less than rounds of equivalent quality because less rough is wasted.
Cons & What to Check
The bow-tie effect: Some ovals show a dark bow-tie shadow across the center. Look for stones where the bow-tie is minimal or invisible.
Color show-through: The pointed ends of an oval can show more color. Choose D-G color if you want a perfectly white appearance.
Tonglin Recommendation
We recommend an oval in 1.2–2.0 carats, D–G color, VS clarity, Very Good or Excellent cut. Pair it with a halo setting for extra brilliance and a larger appearance. See our Aurora oval halo ring.
Quick Summary
| What You Get | With Tonglin Jewelry |
|---|---|
| Pricing | Factory-direct from our Panyu workshop — no retail markup |
| Service | OEM / ODM custom design for studios, wholesalers and brands |
| Materials | K gold, sterling silver, lab-grown diamonds and moissanite |
| Warranty | Lifetime warranty with free resizing and after-sales care |
Ready to Find Your Perfect Piece?
Factory-direct pricing from our Panyu, Guangzhou workshop. Our team will reply within 24 hours with pricing and availability.
Get a Free Quote Chat on WhatsAppFrequently Asked Questions
Do oval diamonds look bigger than round?
Yes. An oval of the same carat weight covers more surface area and appears 10-15% larger to the naked eye.
What is the bow-tie effect in oval diamonds?
It is a dark, bow-tie-shaped shadow that can appear across the center of some oval cuts. A well-cut oval minimizes this effect.
What length-to-width ratio is best for ovals?
A ratio of 1.3:1 to 1.5:1 is considered classic. Below 1.3 the oval looks rounder; above 1.6 it looks more marquise-like.