Essential Diamonds

Introducing our first collection in solid gold and lab-grown diamonds. The Essential Diamond Collection is a three-piece capsule, thoughtfully crafted with the same timeless philosophy that defines every BY TONIN piece. Designed for life's everyday moments and its most meaningful milestones.

Most LovedPre-order

Pair of 9K gold small hoop earrings with removable lab-grown diamond drops from the Essential Diamond Collection by BY TONIN, designed in NZ. Perfect for everyday wear or gifting.

A pair of gold huggie hoop earrings, each featuring a lab diamond above a larger open hoop with a dangling round lab diamond, shown on a light gray background.

Essential Diamond Drop Earrings

990.00 NZD

(5.0)

New

Front view of the 9K gold pendant necklace from the Essential Diamond Collection by BY TONIN, designed in NZ. Displays a brilliant-cut lab-grown diamond on a fine, minimalist gold layering chain.

A delicate gold necklace, with a small clear diamond pendant draped over a green leaf on a plain white background.

Essential Diamond Necklace

890.00 NZD

(5.0)

New

tudio product shot from the Essential Diamond Collection by BY TONIN, designed in NZ. Features the 9K gold delicate chain bracelet with a single bezel-set lab-grown diamond.

A delicate gold chain bracelet with a small clear diamond is draped over a pink orchid flower against a soft white background.

Essential Diamond Bracelet

690.00 NZD

New

Pair of 925 sterling silver small hoop earrings featuring delicate lab-grown diamond charms from the Essential Diamond Collection by BY TONIN, designed in NZ. A hypoallergenic, modern jewellery staple.

A pair of silver-toned hoop earrings, each with a small clear faceted gemstone dangling from the bottom, displayed on a clean off-white background.

Essential Diamond Drop Earrings

420.00 NZD

(5.0)

New

Front view of the 925 sterling silver pendant necklace from the Essential Diamond Collection by BY TONIN, designed in NZ. A delicate silver chain necklace featuring a single lab-grown diamond drop.

The Essential Diamonds Necklace in polished 925 sterling silver paired with a structured black blazer, illustrating contemporary styling transitions and the versatility of a 0.2 carat lab diamond piece within a modern professional wardrobe.

Essential Diamond Necklace

360.00 NZD

(5.0)

New

Studio product shot from the Essential Diamond Collection by BY TONIN, designed in NZ. A minimalist 925 sterling silver chain bracelet featuring a solitary brilliant-cut lab-grown diamond.

Close-up view of the BY TONIN Essential Diamonds Bracelet on a wrist, featuring a 0.2 ct lab-grown diamond set on a polished 925 sterling silver chain. Hypoallergenic and designed for everyday wear in NZ.

Essential Diamond Bracelet

320.00 NZD

New

A gold jewellery set in New Zealand featuring a delicate chain necklace, matching bracelet, hoop earrings, and a small ring, each adorned with a clear lab diamond, displayed on a clean white background.

Lifestyle portrait of model Hye Won Jang wearing the 9K gold diamond drop hoop earrings paired with the matching delicate chain necklace from the Essential Diamond Collection by BY TONIN, showcasing coordinated everyday jewellery styling.

Essential Diamonds Full Collection

2,570.00 NZD

New

A gold jewellery set featuring a delicate chain necklace with a small round lab diamond pendant, alongside two matching gold hoop earrings, each adorned with a lab diamond, displayed on a clean off-white background. Designed in New Zealand

Outdoor studio portrait of model Hye Won Jang styling the BY TONIN Essential Diamond Necklace in 9K gold with a relaxed white denim shirt. An elegant reference for modern, intentional lifestyle wear and premium jewellery gifting in New Zealand.

Essential Diamonds Signature Pair

1,880.00 NZD

New

A silver jewelry set featuring a delicate chain bracelet with a small round bezel-set stone, a matching necklace, and a pair of hoop earrings with small dangling beads and round stones, all arranged on a clean white background.

Studio view of a model styling the BY TONIN silver diamond drop earrings with a structured black blazer, illustrating contemporary wardrobe transitions and intentional modern jewellery for professional dressing.

Essential Diamonds Full Collection

1,100.00 NZD

New

Silver jewellery set featuring a delicate chain necklace with a small round lab diamond pendant, paired with matching hoop earrings, each adorned with a small clear lab diamond drop, displayed on a clean white background.

Lifestyle portrait of model Hye Won Jang wearing the 925 sterling silver diamond drop hoop earrings paired with the matching delicate chain necklace from the Essential Diamond Collection by BY TONIN, demonstrating clean everyday jewellery styling.

Essential Diamonds Signature Pair

780.00 NZD

Our Inspiration Materials & Design Styling & Versatility Wear & Experience

Our Inspiration

The collection speaks to our foundational philosophy: stripping away excess to expose what is necessary. We do not view diamonds as ornaments reserved exclusively for evening wear or singular life milestones. Instead, they are essential elements—worn through winter knits and summer tailoring alike, and appreciated in the ordinary moments of the day-to-day.

Materials & Design

The collection pairs the sharp light of a single lab-grown diamond with a soft, pillow-like honeycomb motif. By nesting a classic six-prong setting within this solid geometric form, we bring lasting quality to daily jewellery. Made from solid 9k Gold and Sterling Silver, these pieces are designed for simple, continuous wear.

Styling & Versatility

The Essential Diamond Collection is made for easy integration. The soft form provide a subtle, architectural touch to a considered wardrobe—resting cleanly against heavy woollen lapels in the winter months or catching the light against a bare collarbone in summer. Worn as a single piece or as a complete uniform, it offers a simple, intentional finish.

Wear & Experience

Every piece carries the intentional weight of solid, un-hollowed metal, shaped with a pillow-like contour that settles beautifully against the skin. The necklace and earrings are engineered to stay perfectly positioned without rolling or catching, while the solid weight of the bracelet allows it to move naturally with the wrist.

Our Inspiration

Materials & Design

Styling & Versatility

Wear & Experience

The Diamond Guide

Every diamond we use is a premium lab-grown diamond, selected for its brightness and clarity.

Like mined diamonds, lab-grown diamonds are graded using the internationally recognised 4 Cs: Cut, Colour, Clarity and Carat. Knowing how each one is classified makes it easier to compare stones and choose the right fit.

Cut

Cut refers to the precision, alignment, and polish of a diamond’s facets. It dictates how light enters the stone and reflects back to the eye, rather than referring to the raw shape of the stone itself.

What are the most prized cut grades?
The most prized diamonds are those graded Excellent. This grade represents the highest level of cutting precision, where the facet angles and symmetry align perfectly to reflect light with absolute efficiency, preventing any dullness or leakage.

Does cut matter more than carat size?
A diamond’s appearance on the skin relies on the balance of all 4 Cs, with cut playing the most critical role. For a round cut diamond, we select precise, well-proportioned cuts that maximize the surface diameter and light return. This ensures that even smaller, more delicate weights appear clean, distinct, and bright.

Cut

Colour

Colour measures the natural tint present within a white diamond. The industry standard scale established by the GIA runs alphabetically from D, representing completely colourless, down to Z, which indicates a noticeable light yellow or brown tint.

What are the most valuable colour grades?
The most valuable diamonds are graded D, E and F. These are colourless stones with no trace of tint, which lets them reflect light as cleanly as possible.

What is the impact?
Small shifts in colour tone change how bright a diamond looks once it is set. Colourless stones are the rarest, but the difference between colourless and near-colourless grades (G-H) is very hard to see with the naked eye when worn, which makes them a practical choice for everyday jewellery.

Our Essential Diamonds are F-G colour for a clean, bright appearance. Our Solitaire Diamonds are D colour, the highest grade on the scale.

Clarity

Clarity evaluates the internal characteristics (inclusions) and surface markings (blemishes) created during the diamond's growth process. The scale ranges from Flawless (FL) down to Included (I3).

What are the most valuable clarity grades?
The most valuable grades are Flawless (FL) and Internally Flawless (IF). A Flawless stone has no inclusions or blemishes under 10x magnification, while an Internally Flawless stone has no inclusions and, at most, very minor surface blemishes.

Just below these sit the VVS grades (Very, Very Slightly Included). Their internal characteristics are microscopic, so a VVS stone looks clean to the naked eye. That makes it a practical choice for high-quality everyday wear.

What is the impact?
Clarity affects how clean a diamond looks. Our Essential Diamonds are graded VVS and our Solitaire Diamonds are graded VVS1, so any internal characteristics are microscopic and cannot be seen without magnification. The diamond stays clear and free of visible imperfections in daily wear.

Carat

Carat (abbreviated as 'ct') measures a diamond's physical weight rather than its visual diameter. One carat is equal to exactly 200 milligrams. While carat weight influences value, two diamonds of the exact same weight can look completely different depending on their proportions.

Does carat size matter?
Carat weight tells you how much a stone weighs, but the cut determines how it appears on the skin. A precise, well-proportioned cut maximises surface diameter and light return, so even a smaller stone looks clean, bright and distinct. Our Essential Diamonds are 0.2 ct and our Solitaire Diamonds are 0.5 ct, each cut to show its best brightness when worn.

Frequently Asked Questions

Is this collection suitable for sensitive skin?

Yes. We use 925 Sterling Silver and solid 9k Yellow Gold, which are nickel-free and hypoallergenic, making them safe and comfortable for sensitive skin and continuous daily wear.

What is the exact carat weight and quality of the lab-grown diamonds?

Each piece in the capsule features a 0.20-carat round brilliant cut lab-grown diamond. We select stones that fall within the F-G colour range (colourless to near-colourless) and carry a VVS1 clarity grade. This ensures that even at a delicate, wearable scale, the diamond exhibits exceptional optical purity, with inclusions so microscopic they are difficult to detect even under 10x magnification.

Why do you use 9k Gold?

Pure gold is naturally soft; by blending it with structural alloy metals, 9k gold becomes highly scratch-resistant and durable. For pieces worn constantly, this provides maximum security for the stone setting and allows the surface to hold its finish through daily friction.

Choosing 9k gold also makes acquiring a permanent piece of fine jewellery straightforward and accessible, providing a solid foundation of real materials that will never fade, tarnish, or wear away.

Can a lab-grown diamond truly become a genuine family heirloom?

Yes, A diamond’s ability to serve as a generational heirloom relies on two core attributes: its physical imperishability and the emotional narrative attached to it.

Physically, our lab-grown diamonds are identical to mined diamonds in every measurable way—possessing the exact same crystalline structure, chemical composition, and absolute hardness (10 on the Mohs scale). They do not degrade, cloud, scratch, or lose their brilliance over time. The optical purity of the VVS1 stones we select will look exactly the same two hundred years from now as it does today. It is a material built to withstand generations of physical wear.

Historically, the concept of a diamond heirloom was tied to scarcity and artificial retail inflation. Today, the definition of an heirloom has shifted toward intentionality and values. Passing down a lab-grown stone means passing down an object of pure structural permanence that was acquired thoughtfully, without the environmental and ethical toll of traditional mining. It allows the heirloom to carry a story of modern momentum and conscious independence from the very first day it is worn.

What does "solid construction" mean for these pieces?

Many jewellery brands hollow out the back of their pieces or use thin tubing to save on material costs, resulting in a lightweight, fragile product. Every piece in our Essential Diamond Collection is cast completely solid throughout. This gives the jewellery a deliberate weight and superior durability built for continuous daily wear.

DESIGNED IN NEW ZEALAND

Crafted with thoughtful intention and meticulous attention to detail, each piece reflects our commitment to refined craftsmanship and the highest global standards of quality.

ETHICAL & SUSTAINABLE

We prioritise ethically sourced and recycled materials, work with certified partners, and produce in small batches to minimise impact, honouring both people and planet.

CONSCIOUS LUXURY

Crafted in small batches to balance subtle elegance with mindful intention, offering jewellery that feels personal, refined, and considered in every detail.

PERFECTLY PRESENTED

Each piece is beautifully presented in eco-conscious packaging and a luxurious velvet pouch, designed to create a personal and memorable unboxing experience.