Collection: Octagonal D Color Lab Grown Diamonds

Browse octagonal D color lab grown diamonds with transparent pricing, IGI grading reports and free insured USA shipping. Choose from 22 options from 1 to 5 carats, in D color and VVS1, VVS2, VS1 and VS2 clarity, priced from $662.

Octagonal D Color Lab Grown Diamonds

Browse octagonal D color lab grown diamonds with transparent pricing, IGI grading reports and free insured USA shipping. Choose from 22 options from 1 to 5 carats, in D color and VVS1, VVS2, VS1 and VS2 clarity, priced from $662.

About the octagonal shape

The octagonal is an eight-sided step cut with an Art Deco feel. Because it is less common than classic shapes, it gives a ring or pendant a look that stands out.

What does D color mean?

D is the highest color grade on the GIA/IGI scale. A D color diamond is completely colorless, with no trace of warmth even when viewed face-down under laboratory lighting.

How to choose

VVS1 and VVS2 are the cleanest grades we offer, while VS1 and VS2 are eye-clean and leave more budget for carat weight. Carat weights range from 1 to 5 carats. Prices in this collection range from $662 to $581,756.

Lab grown vs mined diamonds

A lab grown diamond is created in a controlled environment that recreates the heat and pressure under which natural diamonds form. The result has the same crystal structure, hardness of 10 on the Mohs scale, fire and brilliance as a mined diamond, and it is graded on the same color, clarity and carat scales. The main differences are price, which is typically 70 to 90 percent lower, and a traceable, conflict-free origin.

From loose diamond to finished ring

Pair your diamond with any Northfire setting, from a sleek solitaire to a pavé halo, in white, yellow or rose gold. We handcraft every ring to order and send photos for approval, so your diamond and setting are matched perfectly before the ring ships.

Why buy from Northfire Jewelry

Every diamond is IGI certified, shipped free and fully insured within the USA, and backed by a 30-day return policy. Lab grown diamonds are real diamonds, chemically, physically and optically identical to mined diamonds, at a fraction of the price. Our team can set your diamond in any of our engagement ring designs or create a fully custom ring for you.

Got Questions? We Got Answers

Are octagonal D color lab grown diamonds real diamonds?
Yes. Lab grown diamonds are real diamonds made of pure carbon with the same hardness, brilliance and chemical structure as mined diamonds. Only their origin is different.
How much do octagonal D color lab grown diamonds cost?
Diamonds in this collection are priced from $662 to $581,756, depending on shape, carat, color and clarity.
Is D color worth it?
D is the highest color grade on the GIA/IGI scale. A D color diamond is completely colorless, with no trace of warmth even when viewed face-down under laboratory lighting. It is ideal if you want the whitest possible stone.
Which ring settings suit a octagonal diamond?
A octagonal diamond looks beautiful in solitaire, hidden halo, halo, side stone and three stone settings. Ask our designers to set it in any Northfire ring or a custom design.
Do these diamonds come with a certificate?
Yes. Every diamond is graded by IGI (International Gemological Institute) and ships with its original IGI grading report.
Can I set this diamond in an engagement ring?
Yes. Choose any loose diamond and our jewelers will set it in the Northfire engagement ring of your choice or in a custom design. Contact us and we will guide you.
What is your shipping and return policy?
Shipping is free and fully insured within the USA, and loose diamonds can be returned within 30 days in their original condition.