A front view of the Thea Round Solitaire with a white Laboratory Grown Diamond in White Gold

A woman wearing the Thea Round Solitaire ring with a Laboratory Grown Diamond

A side view of the Thea Round Solitaire with a white Laboratory Grown Diamond in White Gold

A back view of the Thea Round Solitaire with a white Laboratory Grown Diamond in White Gold

Revealing its unique details and facets with each encounter, the Thea Solitaire celebrates the beauty of a diamond.

Personalisation

Thea Round Solitaire | Laboratory Grown Diamond

Name: Thea Round Solitaire | Laboratory Grown Diamond
Brand: Natalie Marie Jewellery
SKU: THE-TRS-14W-LG-RI-
Price: 4200.0 AUD
Availability: InStock

$4,200 AUD

Payment Options

PURCHASE

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The maximum purchase amount is $2,000 AUD.

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The maximum purchase amount is $5,000 AUD.

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Repay in 4 instalments fortnightly, interest-free.

The maximum purchase amount is $2,000 AUD.

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Metal Carat:

Carat Guide

14ct

18ct

Ring Size:

Size Guide

Metal:

White Gold

Metal

Yellow Gold

A classic and timeless metal, yellow gold is revered for its rich, vibrant hue. Courtesy of its warm and luxurious appearance, many cultures historically imagined gold to represent the sun, and its durability makes it a preferred material for ceremonial pieces.
70 per cent of the gold that we use in our creations is recycled Australian gold, with just 30 per cent newly mined. Of the latter figure, 86 per cent is confirmed as Australian mined, and the remaining 14 per cent is blended. We harness this blended portion predominantly for our clasps, earring backs and findings.
Metal

Rose Gold

An alloy of gold and copper, Rose Gold is recognisable for its warm, peach-toned hue that complements a vast range of skin tones and designs. An uniquely coloured metal, existing somewhere between white gold’s stark brilliance and yellow gold’s classicism, Rose Gold is a romantic option for engagement and ceremonial styles.
The Rose Gold used for our creations is 70 per cent is recycled Australian gold, with 30 per cent newly mined. Of the latter, 86 per cent is confirmed Australian mined, the remaining being blended (used for clasps, earring backs, findings etc).
Metal

White Gold

With its bright, silvery-white, lustrous surface, White Gold is a cherished metal for jewellery and other keepsakes. Created by combining pure gold with other metals, its modern and sophisticated expression wears beautifully across different skin tones.
70 per cent of the gold that we use is recycled Australian gold, with 30 per cent newly mined. Our White Gold is rhodium plated – an industry-standard process whereby the natural colour of the metal is plated in a thin layer of rhodium (a naturally white metal), to evoke a luxurious hue that is consistent no matter the carat, and is reapplied annually.

Stone:

Laboratory Grown Diamond

Stone

Laboratory Grown Diamond

COLOUR: White
REPRESENTS: Inner Strength, Clarity & Everlasting Love
MOHS HARDNESS: 10
A mindful and aesthetically brilliant alternative to their natural counterparts, Laboratory Grown Diamonds are grown in carefully controlled lab environments to evoke the same physical, chemical, and optical properties as mined diamonds. Renowned for their brilliance, fire, and durability, Laboratory Grown Diamonds are celebrated as the stone of love, embodying everlasting affection, friendship, purity and inner strength.
Stone

Australian Blue Sapphire

COLOUR: Rich, Dark Blue
REPRESENTS: Truth, Nobility & Faithfulness
MOHS HARDNESS: 9
September’s birthstone, Sapphire, is one of the world’s most popular gemstones; sought out for its signature blue hue (though it can be found in other colors such as pink, yellow, and green). A variety of the mineral corundum, Sapphire’s extreme durability (second only to diamonds) makes it a long-lasting gemstone believed to promote wisdom, truth, and spiritual insight. Symbolising nobility and faithfulness, Sapphires have been historically favoured by royalty, and Australian blue Sapphires, used throughout Natalie Marie Jewellery collections, are known for their markedly darker, dramatic tone.

Metal

White Gold

With its bright, silvery-white, lustrous surface, White Gold is a cherished metal for jewellery and other keepsakes. Created by combining pure gold with other metals, its modern and sophisticated expression wears beautifully across different skin tones.

70 per cent of the gold that we use is recycled Australian gold, with 30 per cent newly mined. Our White Gold is rhodium plated – an industry-standard process whereby the natural colour of the metal is plated in a thin layer of rhodium (a naturally white metal), to evoke a luxurious hue that is consistent no matter the carat, and is reapplied annually.

Stone

Laboratory Grown Diamond

COLOUR: White
REPRESENTS: Inner Strength, Clarity & Everlasting Love
MOHS HARDNESS: 10

A mindful and aesthetically brilliant alternative to their natural counterparts, Laboratory Grown Diamonds are grown in carefully controlled lab environments to evoke the same physical, chemical, and optical properties as mined diamonds. Renowned for their brilliance, fire, and durability, Laboratory Grown Diamonds are celebrated as the stone of love, embodying everlasting affection, friendship, purity and inner strength.

Optional Customisations:

Birthstone Hidden

Hidden Birthstone: ($130 AUD each)

Guide

Select Birthstone:

Garnet

January

Garnet

January

Amethyst

February

Amethyst

February

Aquamarine

March

Aquamarine

March

Diamond

April

Diamond

April

Emerald

May

Emerald

May

Alexandrite

June

Alexandrite

June

Ruby

July

Ruby

July

Peridot

August

Peridot

August

Sapphire

September

Sapphire

September

Pink Tourmaline

October

Pink Tourmaline

October

Citrine

November

Citrine

November

Blue Topaz

December

Blue Topaz

December

GUIDE

All about metal Carat

Without delving too deep into the science of metals and alloys, our bespoke team have explained the differences to help you make the best choice for your next NMJ piece, and also shared with us whether there is a noticeable difference in colour between the carats.

FAQs

The difference between 9ct, 14ct and 18ct gold is the precious metal content. 9ct gold contains 37.5% pure gold, 14ct contains 58.5% pure gold and 18ct gold contains 75% pure gold. The remainder is a mix of various metals, depending on whether it is a yellow, rose or white gold piece.

In general, 18ct gold is the longer lasting, more durable choice, however 9ct gold can still be a great option for some Jewellery pieces. 9ct gold is commonly used for fine pieces of jewellery that are typically designed for casual wear. Our seasonal collection fashion pieces, or statement pieces are typically crafted in 9ct gold. The reason for this is that these are generally our finest pieces, and where 18ct is flexible, 9ct gold is more rigid and holds its shape better as it has the lowest pure gold content – making it great for casual wear while also bringing it into a more accessible price point.

At NMJ, we always recommend 18ct gold for all precious pieces such as engagement rings and wedding bands.

Put simply, the higher the gold content, the richer the colour and warmer the tone, particularly for yellow and rose gold. However, only when side-by-side are these differences really noticeable to the eye, and they are generally quite subtle so don’t affect the overall aesthetic of your piece of jewellery. The thinner or smaller your piece, the less noticeable the colour difference will be.

As an industry standard, most white gold is rhodium plated. This means you’re not actually seeing the natural colour of the metal as it is plated in a thin layer of rhodium, which is a naturally white metal, so that the stunning bright silver-colour appears consistent no matter the carat. This finish is generally reapplied annually when rings are serviced to maintain the colour.

If you’re opting for an un-plated white gold, the natural colour of the metal in 9ct is slightly darker than sterling silver. You will find that the 9ct looks silvery, and then the higher the carat the darker the grey tone becomes, resulting in more of a steely grey with a slight warmth, making it a popular choice for mens wedding rings.

9ct rose gold is a soft pink, while 14ct and 18ct are a much warmer, peach-toned colour. Our 18 carat rose gold alloy is always popular for its soft warmth and lack of coppery undertone.

9ct yellow gold appears as a subtle, pale yellow while higher carats, such as 18ct in particular, present a richer, more vibrant golden tone. As a 9 carat alloy is more diluted with other metals, there can be some minor colour evolution or tarnishing over time, whereas 18 carat has a more stable finish.

The carat finish can be identified by a small stamp (hallmark) located on the gold, typically in a discreet spot such as the inside of a band, the clasp of a necklace or bracelet or the post or butterfly of your earrings.

9ct - ‘9ct’, ‘9k’ or ‘375’

14ct – ‘14ct’, ‘14k’ or ‘585’

18ct – ‘18ct’, ‘18k’ or ‘750’

SELECT YOUR SIZE

Ring Size Guide

As all pieces at Natalie Marie are handmade to order, please take care when specifying your size. For men's rings or wide, cuff styles, half a size should be added to the measured size to ensure that it fits well taking into account the surface area of the ring.

NMJ SIZE (AUS/UK)	Internal Diameter / Circumference (MM)	USA SIZE
D	13.1 / 41.1	-

D 1/2	13.3 / 41.7	2

E	13.5 / 42.4	-

E 1/2	13.7 / 43.0	2.5

F	13.9 / 43.6	-

F 1/2	14.1 / 44.2	3

G	14.3 / 44.9	-

G 1/2	14.5 / 45.5	3 1/2

H	14.7 / 46.1	-

H 1/2	14.9 / 46.8	4

I	15.1 / 47.4	-

I 1/2	15.3 / 48.0	4 1/2

J	15.5 / 48.6	-

J 1/2	15.7 / 49.3	5

K	15.9 / 49.9	-

K 1/2	16.1 / 50.5	5 1/2

L	16.3 / 51.2	-

L 1/2	16.5 / 51.8	6

M	16.7 / 52.4	-

M 1/2	16.9 / 53.0	6 1/2

N	17.1 / 53.7	-

N 1/2	17.3 / 54.3	7

O	17.5 / 54.9	-

O 1/2	17.7 / 55.6	7 1/2

P	17.9 / 56.2	-

P 1/2	18.1 / 56.8	8

Q	18.3 / 57.4	-

Q 1/2	18.5 / 58.1	8 1/2

R	18.8 / 59.0	-

R 1/2	19.0 / 59.6	9

S	19.2 / 60.3	-

S 1/2	19.4 / 60.9	9 1/2

T	19.6 / 61.5	-

T 1/2	19.8 / 62.2	10

U	20.0 / 62.8	-

U 1/2	20.2 / 63.4	1O 1/2

V	20.4 / 64.0	-

V 1/2	20.6 / 64.7	11

WAYS TO MEASURE

Want to match the size of a ring you already own? Simply use a ruler to measure the inside diameter in millimetres - this means your measurement will not include the ring itself.

You may also use the below standard sizing as a guide only, particularly if purchasing as a gift.

Small | AUS size L

Medium | AUS size N

Large | AUS size P

Please take care when specifying your size, if the wrong size is ordered and the piece requires resizing, a resizing fee applies and this varies from piece to piece.

Local customers are welcome to visit the studio to be sized, or you can order our complimentary ring sizer here to find your perfect size at home.

GUIDE

Hidden Birthstone

We are honoured to add personal touches to so many of our handcrafted pieces and of all the ways to make a piece extra personal, there is nothing quite as special as the addition of a hidden stone. These secret details tell a story unique to the wearer, they’re held dear and kept close.

The location of the hidden birthstone is set inside the band of the piece.

Add your choice of up to 4x 1mm birthstone/s, bead set. Please note that the maximum number of hidden stones varies from piece to piece. View the product materials & dimensions for specific details.

Hidden stones will appear exactly as entered, from left to right.

The hidden birthstone personalisation is optional and an additional $130 AUD per stone. The total price is shown before adding to cart.

Please refer to the estimated dispatch timeframe before adding to cart as personalisation may extend the production time.

Please see a reference image of the location and style of 4 hidden stones below.

Stone

Garnet

COLOUR: Intense Red
REPRESENTS: Love, Friendship, Energy & Passion
MOHS HARDNESS: 7.5

Characterised by its deeply concentrated hue, Garnet is a romantic gemstone often used in energy work and mediation – courtesy of its promotion of love, passion and energy. An intense red stone that is often gifted to symbolise a second anniversary, the word ‘Garnet’ derives from the Latin word ‘granatus’, meaning grain or seed, and is thought to nod to the red seeds of a pomegranate.

Stone

Amethyst

COLOUR: Violet
REPRESENTS: Cleansing, Protection & Inspiration
MOHS HARDNESS: 7

Amethyst is a violet variety of quartz whose colour can range from pale lilac to deep purple, and it is often found occuring in geodes or clusters. As February’s birthstone, Amethyst is sought out to promote calmness, balance, and spiritual growth – it is often used in energy work and meditation – and in many cultures it is relegated to sacred status. A revered gemstone, Amethyst’s durability makes it a popular choice for jewellery personalisation.

Stone

Aquamarine

COLOUR: Light Blue
REPRESENTS: Happiness, Hope & Everlasting Youth
MOHS HARDNESS: 8

Derived from the Latin word for ‘sea water’, March’s birthstone, Aquamarine, embodies its moniker in both colour and energy. Ranging in hue from pale blue-green to deep blue, Aquamarine is often associated with the ocean and the calming qualities of water. A variety of beryl, it is harnessed to promote clarity, courage, and communication, and its durability allows for artful integration across different jewellery pieces. Aquamarine’s historical use is widely documented, with Ancient Egyptians and Sumarians believing it to be a symbol of happiness and eternal youth, and Ancient Romans using it to enhance the happiness of marriages.

Stone

Diamond

COLOUR: White
REPRESENTS: Inner Strength, Clarity & Everlasting Love
MOHS HARDNESS: 10

Regarded as the world’s most sought-after gemstone, Diamond is a mineral that is formed deep within the earth’s crust and is one of the hardest substances known to humankind, making it a historically popular choice for everyday wear, and engagement and ceremonial jewellery. Renowned for their brilliance, fire, and durability, Diamonds are celebrated as the stone of love, embodying everlasting affection, friendship, purity and inner strength.

Stone

Emerald

COLOUR: Pure Green
REPRESENTS: Loyalty, Peace & Balance
MOHS HARDNESS: 8

Known for its exquisite green colour, Emerald is a variety of the mineral beryl. It is formed deep within the earth's crust and characterised by its inclusions – natural patterns that referred to as the Emerald’s ‘jardin’ (the French word for ‘garden’). The stone’s verdant attributes evoke notions of rebirth and renewal, and they are found in many locations around the world. Emeralds’ relative softness requires delicate wear and handling, though their brilliant shading and promotion of wisdom and creativity make them luxurious exemplifications of life in bloom.

Stone

Alexandrite

COLOUR: Green in Natural Light & Reddish-Purple in Artificial Light
REPRESENTS: Creativity, Good Fortune, & Love
MOHS HARDNESS: 8.5

Alexandrite is a rare, highly prized and mysterious gemstone, known for its remarkable colour-changing properties; it appears green in natural light and reddish-purple in artificial light. A variety of the mineral chrysoberyl, its appeal dates back to the legends of Russia which suggested that those who wore Alexandrite received the many benefits imbued within the stone including good fortune, love and good luck. It is found in relatively few locations around the world, and its creative and intuitive attributes are believed to stimulate balance between the physical world and the spiritual realm.

Stone

Ruby

COLOUR: Vivid Red
REPRESENTS: Love & Passion
MOHS HARDNESS: 9

A beautiful red gemstone whose genesis is the mineral corundum, Ruby is one of the most valuable gemstones in the world and is prized for its vivid red colour and excellent hardness. Rubies are historically prized stones, adorned by royalty throughout the ages and harnessed by warriors in Ancient Myanmar who believed that implanting a ruby into their flesh would make them invincible in battle. Rubies are believed to promote passion, courage, and vitality and are a popular gemstone for use in high-end jewellery collections.

Stone

Peridot

COLOUR: Naturally Light Green
REPRESENTS: Strength
MOHS HARDNESS: 7

Regarded as the ‘sun-gem’, Peridot is a distinctive green gemstone that is a variety of the mineral olivine. Occuring in a range of green colors – from pale yellow-green to vibrant lime green – Peridot is believed to promote abundance, happiness, and spiritual growth, and its vibrant shade is synonymous with peace and harmony. It is popularly known as the gem of compassion – a stone that makes all things new – and its relative softness means it is best suited for statement pieces and delicate wear.

Stone

Sapphire

COLOUR: Rich, Dark Blue
REPRESENTS: Truth, Nobility & Faithfulness
MOHS HARDNESS: 9

September’s birthstone, Sapphire, is one of the world’s most popular gemstones; sought out for its signature blue hue (though it can be found in other colors such as pink, yellow, and green). A variety of the mineral corundum, Sapphire’s extreme durability (second only to diamonds) makes it a long-lasting gemstone believed to promote wisdom, truth, and spiritual insight. Symbolising nobility and faithfulness, Sapphires have been historically favoured by royalty, and the Sapphires, used throughout Natalie Marie Jewellery collections, are known for their markedly darker, dramatic tone.

Stone

Pink Tourmaline

COLOUR: Delicate Pink
REPRESENTS: Humanitarianism
MOHS HARDNESS: 7.5

Known for its delicate blush colour, Pink Tourmaline is a variety of the mineral tourmaline and is found in many locations around the world. Symbolising love, compassion and emotional healing, Pink Tourmaline is often sought after for use in energy work and meditation and worn to promote sympathy towards others, improved listening and understanding. Traditionally exchanged between couples to mark an eighth wedding anniversary, Pink Tourmaline is a romantic stone for use in engagement and ceremonial pieces.

Stone

Citrine

COLOUR: Warm Yellow / Orange
REPRESENTS: Positivity & Optimism
MOHS HARDNESS: 7

A sundrenched colour characterises November’s birthstone: Citrine. Beloved for its warm yellow to orange hue, reminiscent of the sun, it is a variety of the mineral quartz and is often found in association with amethyst. The stone – whose name derives from the French word ‘citron’, meaning ‘lemon’ – is believed to promote calming, soothing energies, while bringing fortune and warmth to the wearer, and was often adorned by Emperor’s in Ancient China. Referred to as the ‘merchant’s stone’ throughout the Middle Ages, Citrine was once worn to attract wealth and prosperity.

Stone

Blue Topaz

COLOUR: Bright Blue
REPRESENTS: Communication & Action
MOHS HARDNESS: 8

December’s birthstone, Blue Topaz, is a distinctive stone occurring in a spectrum of shades of blue – from pale sky blue to deep blue-green. Blue Topaz is formed from the mineral topaz, and is found in many locations around the world. Known as the ‘clarity stone’, it is believed that blue topaz stimulates open communication and action, opportunity, and symbolises deep, honest and genuine emotions and sentiments. Blue Topaz has historically been associated with great wisdom, with wearers believing the stone’s adornment to elicit success in their endeavour.

Crafted for you | Estimated dispatch 4-6 weeks

Modernity meets timelessness with our Thea Solitaire, crafted to reveal its unique details and facets with each encounter. Celebrating the beauty of a round-cut Laboratory Grown Diamond and surrounded by a soft yet striking dotted rail, the Thea Solitaire is handcrafted in your choice of metal and designed to keep your love story close at heart.

Materials & Dimensions

Production & Shipping

Crafting Location

Materials & Dimensions

Production & Shipping

Crafting Location

PRODUCT INFORMATION

Materials & Dimensions

Handmade in 14ct or 18ct White Gold.

Stones: Approx. 1ct IGI Laboratory Grown Diamond E Colour, VS2 Clarity as standard*

*Stone supplied may exceed these quality gradings and can sit between D or E colour, VS1 and VS2 clarity.

Band: 1.5mm Round Band.

If you opt for personalisation of this piece, the hidden stones will be set on the inside of the band at 2pm from the central stone setting. A maximum of 4 stones can be selected.

Production & Shipping

This piece is handmade to order. Please allow approximately 4-6 weeks for the production of this piece.

If the piece has optional customisation offerings, please refer to the estimated dispatch time presented by the add to cart button as this may affect the lead time.

SHIPPING

We ship globally, using express priority shipping methods to ensure traceability and insurance, and offer complimentary worldwide shipping on all orders over $1,000 AUD.

Duties and taxes levied by the recipient country are the responsibility of the customer.

For more details on shipping and delivery here.

INSURANCE
We partner with Centrestone Jewellery Insurance. We recommend learning more about their service and considering insurance on your treasured pieces. For more details, contact our team here.

Crafting Location

NMJ pieces are mindfully handcrafted, predominantly in our in house Sydney studio. We pride ourselves on creating not only a safe and healthy working environment for our team of jewellers, but also a nurturing and supportive platform for their growth as jewellers and professionals in their field.

We encourage and support skill development and personal growth with a focus on creating a positive and enjoyable workspace. Using hand tools as opposed to heavy machinery lessens our carbon footprint, while selecting non toxic compounds for use in the studio reduces our environmental impact.

We have recently partnered with accredited facilities both in Sydney and overseas to facilitate the expansion of our production to meet a growing demand, while we work on building out our own team to facilitate this in house. You can read more about our manufacturing avenues here.

BESPOKE

Enquiries

As one-of-a-kind conduits for affection and creativity, each Natalie Marie Jewellery Bespoke piece is imbued with the personal. We prioritise our relationship with our clients above all else, and if designing a truly one-of-a-kind keepsake is what your heart desires let us embark upon that journey with you. We’re happy to answer your questions, provide estimates, and guide you through this unique creative experience. Fill in the form below to get started.

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Achievements

Sustainability

It is of the utmost importance to Natalie Marie Jewellery to create responsibly, source mindfully and ensure that all of our pieces are produced sustainably and ethically.