Everyday 9K Solid Gold Jewellery

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 — Only 1 Left

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

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

Everyday 9K Solid Gold Jewellery

A permanent foundation for your daily rotation. Our collection of solid 9k gold jewellery is anchored in material integrity—crafted from solid yellow gold that will not tarnish, discolor, or wear away over time. Designed in New Zealand, each piece is built for absolute longevity and engineered to be lived in continually.

From fluid, fine layering chains to delicate earrings, these designs bring the structural resilience of solid gold into a minimalist, contemporary framework.

What is the difference between solid 9k gold and gold-plated jewellery?

Solid 9k gold consists entirely of precious metal alloy distributed evenly throughout the entire piece, rendering its colour permanent and completely wear-resistant over a lifetime. Gold-plated jewellery features a layer of gold bonded onto a sterling silver base; while our gold plated jewellery utilises an exceptionally thick, premium plating standard for longevity, solid gold represents our highest tier of material integrity and permanent investment value.

How do I layer solid gold necklaces and chains?

Our solid gold necklaces are designed with minimalist, fluid proportions to allow for effortless multi-textural stacking. We recommend using a solid gold pendant necklace as your central anchor point at a longer length (45cm), paired with a finer, unadorned solid gold chain sitting shorter at the collarbone (40cm). For a contemporary, multi-metal look, layer these solid gold pieces alongside our necklaces to create distinct visual depth.

What is the difference between 9k, 14k, and 18k solid gold?

The primary difference lies in the ratio of pure gold to alloy metals, which dictates both the tone and hardness of the piece.

Solid 9k gold contains 37.5% pure gold, balanced with silver and copper alloys. This composition makes 9k gold significantly harder and more scratch-resistant than 14k (58.5%) or 18k (75%) gold, which are softer and more prone to bending or denting over time.

For everyday wardrobe essentials like layering necklaces and everyday hoop earrings, 9k gold provides the ideal structural resilience for continuous wear while offering a refined, understated pale yellow tone.

Can 9k solid gold be considered modern heirlooms?

Yes. Solid 9k gold is an authentic precious metal with intrinsic value that lasts a lifetime. Because it is solid gold throughout, it will never tarnish, wear away, or lose its core material integrity over generations.

They are designed to be worn continuously, collecting personal history and transforming into modern heirlooms that can be passed down.

Will daily wear diminish the heirloom quality of a 9k solid gold chain or hoop?

No. Daily wear actually deepens the character of solid gold. While daily exposure to skin oils and element surfaces can leave a faint organic film that temporarily softens the stone or metal's reflection, the underlying material remains completely unchanged. A simple routine wash with warm water restores its native lustre instantly. Solid 9ct gold does not thin out or erode with friction, ensuring your everyday uniform pieces maintain their heirloom-grade integrity permanently.

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.

CURATED IN SMALL BATCHES

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.

The Longevity of Solid 9k Gold

At BY TONIN, we design fine jewellery to be worn often rather than reserved for occasions. Our solid gold collection marks a deliberate focus on permanence, essentials designed to be integrated into your morning routine and worn continuously without a second thought. By utilising solid 9k yellow gold (also known as 9ct gold), we ensure each piece possesses a balance of structural hardness and natural warmth. Solid gold is water-safe and will not tarnish or fade over time, making it completely safe for sensitive skin and suited to the continuous rhythm of daily living.

A System for Face, Neck, and Wrist

Rather than standalone statements, this collection operates as a simple, modular system. Our structural solid gold hoop earrings are engineered with a balanced weight, ensuring they anchor a multi-piercing ear stack comfortably from day to night. For the neck and wrist, fine 9ct gold chains are weighted to rest naturally against the skin. Pair a delicate,unadorned solid gold chain with a weightier solid gold pendant necklace to create a balanced stack, or layer our low-profile bracelets alongside our signature 925 sterling silver jewellery. Explore everyday fine jewellery designed in New Zealand, made in small batches, and built for a lifetime of wear.

Considered Gifting

Because of its durability, our 9ct solid gold collection forms a core part of our gifting selection. Moving beyond passing trends, gifting a piece of solid gold represents a simple investment in someone's daily uniform. Whether selecting a classic pair of hoops for birthday jewellery gifts, choosing a fluid chain bracelet for a significant anniversary, or exploring jewellery gifts for her NZ to mark a personal milestone, these designs carry a permanent quality.