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.

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.

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

Gold hoop earrings with clear diamond accents, displayed inside an open vintage-style matchbox filled with wooden matches on a light gray background.

A pair of gold hoop earrings, one with a solid gold back and the other with a lab grown diamond, shown on a light gray background.

Detailed close-up of a 9K gold small hoop earring featuring a single bezel-set 0.2 ct lab-grown diamond drop charm, demonstrating scale and clarity under natural direct lighting conditions in NZ

Close-up on-model view of the 9K gold fine chain pendant necklace from the Essential Diamond Collection by BY TONIN, designed in NZ. Displays a brilliant-cut 0.2 ct lab-grown diamond sitting gracefully on the collarbone.

On-model shot featuring the 9K gold fine pendant necklace paired with matching lab-grown diamond drop hoop earrings from the Essential Diamond Collection by BY TONIN, demonstrating coordinated minimalist jewelry styling.

New

Essential Diamonds Signature Pair

Name: Essential Diamonds Signature Pair
Brand: BY TONIN
Price: 1880.00 NZD
Availability: InStock

1,880.00 NZD

Material:

2-piece set in solid gold

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.

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.

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.

Sending as a gift? Add a personal handwritten note.

Conflict-Free Diamonds

6-Month Warranty For Your Peace of Mind

Designed in New Zealand

Two foundational icons, curated as one effortless layer.

The Essential Diamond Signature Pair includes our primary lab-grown diamond essentials: the 0.40 ct TW Drop Earrings and the matching 0.20 ct Pendant Necklace. Purchased together, this collection establishes a complete aesthetic harmony while offering exceptional value.

Built solid throughout, each piece is cast in solid 9K gold to ensure lifelong structural integrity. They will not tarnish, chip, or irritate sensitive skin, giving you total confidence from active days to formal evenings.

— Total Carat Weight: 0.6 ct tw (0.40ct tw earrings, 0.20ct necklace)
— Stone Class: Lab Grown
— Diamond Cut: Round Brilliant
— Diamond Setting: 6-prong
— Charm Size: 4.5mm × 5mm × 3mm
— Diamond Clarity: VVS (A high-grade tier on the diamond clarity scale, describing diamonds with very slight inclusions barely visible under 10x magnification.
— Diamond Colour: G-F (Near-colourless to colourless)
— Metal: 9K Yellow Gold / Sterling Silver
— Earring Hoop Inner Diameter: 10mm
— Necklace Chain Width: 1mm
— Necklace Chain Length: 45cm with 3 adjustment points from 40cm
— Weight: Necklace: 1.72 g; Earrings: 2.16 g

New Zealand
Enjoy complimentary standard shipping on all orders.

Australia
Receive complimentary standard shipping on orders over $200 AUD. Orders over $1,000 AUD may incur customs duties or import fees upon arrival.

International
Shipping is automatically calculated at checkout based on your location. Orders over your country’s duty-free threshold may be subject to customs duties or import taxes upon delivery.

For more information on Shipping and Delivery, please click here

Lab-Grown Diamonds: Low-maintenance by design. To clear away any build-up from daily creams or oils, just rinse the piece with warm soapy water whenever you need a quick refresh. No special cleaning kits required.
Solid 9K Gold: Naturally tarnish-resistant and water-safe. Refresh its luster by soaking it in warm water with a drop of mild soap, then buff gently with a soft microfiber cloth.

For comprehensive care instructions, please visit our Product Care page.

Due to hygiene reasons, we cannot accept returns or exchanges on earrings. Please choose mindfully before purchasing.

Partial set returns are refunded less the full retail value of any item(s) kept.

Pre Order Information

Conscious Diamonds

Selected for their optical purity, our lab-grown diamonds possess identical chemical, physical, and visual properties to mined stones, without the environmental toll.

Solid Gold

Forged to endure daily wear, our solid 9k Yellow Gold offers a warm, soft hue. It is a lasting, precious foundation that retains its value and structural integrity, delivering the durability expected of true fine jewellery.

Solid Construction

Completely solid construction. Our pieces are cast fully solid rather than hollowed out, ensuring the piece retains its structural integrity and weight for generations of daily wear.

Pair it with

Essential Diamond Bracelet

$690 NZD

A minimalist accent shaped for the wrist.

Discover

Essential Diamond Bracelet

$320 NZD

A minimalist accent shaped for the wrist.

Discover

THE DIAMOND GUIDE

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 determines a stone's mass, but the way a diamond is cut dictates how it actually appears on the skin. A precise, well-proportioned cut maximizes the surface diameter and light return. This ensures that even smaller, more delicate weights—like a 0.2-carat stone—appear clean, bright, and distinct.

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 diamonds are those graded Flawless (FL) and Internally Flawless (IF). These stones contain absolutely no internal inclusions or surface blemishes under 10x magnification, representing the highest tier of structural purity.

Right below these rare classifications sit VVS (Very, Very Slightly Included) diamonds. Because their internal characteristics are completely microscopic, VVS stones offer an identical appearance of total visual purity to the naked eye, making them a practical choice for high-quality everyday wear.

What is the impact?

Clarity determines the visual purity of the stone. Our diamonds are graded VVS (Very, Very Slightly Included), meaning any internal characteristics are entirely microscopic and invisible to the naked eye. This ensures the diamond remains clear and free of visible imperfections in daily wear.

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.

The Essential Diamonds are in the F–G range for their clean, bright appearance.

What are the most valuable colour grades?

The most valuable diamonds are those graded D, E, and F. These are completely colourless stones, prized because they have no trace of tint, allowing them to reflect light with absolute purity.

What is the impact?

Subtle shifts in colour tone directly alter how bright a diamond looks once set. While completely colourless stones are the rarest, diamonds in the near-colourless (G–H) range offer identical visual clarity to the naked eye when worn, making them a practical choice for everyday jewellery.

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.

Close-up of a hand wearing two gold rings: one with a round brilliant-cut diamond in a bezel setting, and the other with a rectangular baguette-cut diamond. Custom rings designed in NZ by BY TONIN.

Frequently Asked Questions

Are these pieces water-safe and suitable for daily wear?

Yes. Crafted in 9k solid gold or 925 sterling silver, every piece is water-safe and hypoallergenic, meaning it won't tarnish, rust, or turn your skin green.

To keep fine chains from snagging and preserve your diamond’s brilliance from daily soap film or natural oils, we recommend taking them off before showering, workouts, or sleep.

Are lab-grown diamonds real diamonds?

Yes. We use high-grade lab-grown diamonds (VVS clarity, F–G colour). Chemically, optically, and physically identical to mined stones, they score a 10 on the Mohs hardness scale for permanent scratch resistance and lasting clarity.

Learn about Lab Diamonds here.

Does the Essential Diamonds come with individual certificates?

Because our pieces feature delicate stones, individual certificates are not included.

In traditional jewellery grading, reports from authorities like IGI or GIA are standard for stones over 1.00 carat. Omitting certification costs on smaller stones allows us to offer high-grade lab grown diamonds without extra markup.

Does my order come ready for gifting?

Every order arrives in our signature packaging, designed to protect your pieces during transit and double as daily storage. If you're sending a gift directly, you can add a short personal note before adding the product to your cart.

What is the difference between lab-grown diamonds and cubic zirconia or moissanite?

Lab-grown diamonds are real diamonds made entirely of carbon. Cubic zirconia and moissanite are different materials with distinct physical properties. Lab-grown diamonds match mined diamonds in hardness, refraction, and longevity, while diamond simulants tend to scratch or lose brilliance over time.

What do VVS clarity and F–G colour mean?

VVS Clarity (Very, Very Slightly Included): Indicates stones with tiny inclusions that are extremely difficult to see even under 10x magnification, ensuring a completely clean appearance to the naked eye.

F–G Colour: Falls into the rare "Colourless" to "Near Colourless" range, offering a crisp, bright white appearance without warm yellow tones.

Quality, Considered

Designed for longevity, with quality craftsmanship backed by our warranty.

Designed in New Zealand

Ethically sourced materials with a focus on quality, careful craftsmanship.

Conscious Luxury

Timeless jewellery, thoughtfully crafted in small batches for a pearmanent collection.

Beautifully Presented

Beautifully packaged for a refined unboxing experience.

Essential Diamonds Signature Pair