How do I choose an engagement ring?

Choosing an engagement ring can be a daunting task. Before you start shopping for an engagement ring for your partner, it’s worth familiarising yourself with the 4Cs: Colour, Clarity, Cut and Carat Weight, and the different shapes and cut styles of diamonds. Once you’ve done your initial research, start by looking at the jewellery that your partner already wears.

How much should I spend on an engagement ring?

The amount you spend on an engagement ring depends on your unique circumstances. There is no “right” amount; you should not feel pressured to spend a minimum (or maximum) amount to find the right ring. The old salary threshold per income limit is rarely used today. Instead, you should find a ring that you and your partner love and start saving for that ring. The cost of engagement rings at GS Diamonds ranges from a few thousand dollars up to tens of thousands of dollars, so there is more than enough choice to suit every budget. Our consultants work with you (and your partner if they are present) to find the right engagement ring, from the metal to the setting to the size and type of diamond.

Can you buy an engagement ring on a payment plan?

At GS Diamonds, you can buy an engagement ring on a flexible payment plan, making it easier to manage your budget while still choosing the perfect ring. Learn more about our available payment options.

Is it safe to buy diamond rings online?

It’s safe to buy diamond rings online, provided you shop with trusted sellers. At GS Diamonds, all our diamond engagement rings sold online across Australia and worldwide are GIA certified, with secure payment options and insured delivery for complete peace of mind.

How many carats for an engagement ring?

There’s no single answer, as it depends on budget, style, and personal preference. Both diamond carat (stone weight) and gold carat (metal purity) affect the ring’s look and value. To choose the best diamond carat size for your engagement ring, explore more useful tips in our detailed guide.

Diamond Engagement Rings

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Shop Australia’s best range of natural and lab-grown diamond engagement rings in-store at GS Diamonds Sydney, Melbourne, Brisbane, and Perth, or online across major cities including Adelaide, Canberra, Parramatta, the Gold Coast and Sunshine Coast. Shop classic and contemporary styles, find other high-quality gemstone engagement rings, or custom design a bespoke diamond ring. We offer both women’s and men’s engagement rings.

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We found 576 products

Tulip 6 Claws Crown Cushion

Side Stones, 14K White Gold

From: A$1,736

Tulip 6 Claws Crown Marquise

Side Stones, 14K Yellow Gold

From: A$1,736

Rene with Curved Hidden Halo Cushion

Side Stones, 14K White Gold

From: A$1,736

Rene Cushion

Solitaire, 14K White Gold

From: A$1,573

Calista Radiant

Solitaire, 14K White Gold

From: A$1,615

Calista Oval

Solitaire, 14K White Gold

From: A$1,615

Calista Marquise

Solitaire, 14K White Gold

From: A$1,615

Ariel Side Stones Princess

Side Stones, 14K Yellow Gold

From: A$2,059

Ariel Side Stones Oval

Side Stones, 14K White Gold

From: A$2,059

Ariel Side Stones Emerald

Side Stones, 14K Yellow Gold

From: A$2,059

Calista 6 Claws Round

Solitaire, 14K White Gold

From: A$1,615

Ariel Side Stones Cushion

Side Stones, 14K White Gold

From: A$2,059

Angeli Crown Hidden Halo Oval

Side Stones, 14K Yellow Gold

From: A$2,100

Angeli Crown Hidden Halo Emerald

Side Stones, 14K White Gold

From: A$2,100

Angeli Crown Hidden Halo Cushion

Side Stones, 14K White Gold

From: A$2,210

Cara with Hidden Halo and floating side stones Pear

Side Stones, 14K Yellow Gold

From: A$2,180

Cara with Hidden Halo and floating side stones Oval

Side Stones, 14K White Gold

From: A$2,180

Cara with Hidden Halo and floating side stones Cushion

Side Stones, 14K Yellow Gold

From: A$2,180

Dalia with Graduated Side Stones Princess

Side Stones, 14K White Gold

From: A$2,584

Dalia with Graduated Side Stones Oval

Side Stones, 14K Yellow Gold

From: A$2,584

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Measure your ring size

Planning a proposal or buying a ring for yourself? Here are five reliable ways to measure ring size.

How to measure your ring size

Find your size

Measure a Ring That Already Fits

Place the ring on a flat surface or ruler.
Measure straight across the centre of the inside circle
Measure in millimetres
Compare the diameter with a ring size chart.
Make sure the ring is worn on the same finger the new ring is for.

Use a Plastic Ring Sizer Tool

Slide the sizer onto your finger.
Tighten it until it feels snug but comfortable.
Make sure it slides over the knuckle with slight resistance.
Check it sits securely at the base without spinning.
Read the indicated size on the tool.

String or Paper Strip Method

Wrap a string or paper strip around the base of your finger.
Mark where the ends meet.
Lay it flat and measure the length in millimetres.
Compare the measurement with a ring size chart.
Avoid pulling too tight — this method is a rough estimate only.

Printable Ring Size Chart

Print the ring size chart at 100% scale.
Place your ring over the printed circles.
Find the circle that fits perfectly inside the band.
Ensure there are no gaps or overlaps.
Use a ring worn on the correct finger for accuracy.

RING SIZE CONVERSION
Australia & UK	Circumference (mm)	Diameter (mm)	Europe	Switzerland, Spain, Italy	United States & Canada	China
F	44	14	44	4	3	3 3/4
F 1/2	44.5	14.14	44.5	4.5	3	4 1/2
G	45	14.34	45	5	3 1/4	5
G 1/2	45.5	14.54	45.5	5.5	3 1/2	5 3/4
H	46	14.74	46	6	3 3/4	6 1/4
H 1/2	47	14.94	47	7	4	7
I	48	15.14	48	8	4 1/4	7 1/2
I 1/2	48.5	15.34	48.5	8.5	4 1/2	8 1/4
J	49	15.54	49	9	4 3/4	8 3/4
J 1/2	49.5	15.74	49.5	9.5	5	9 1/2
K	50	15.94	50	10	5 1/4	10
K 1/2	50.5	16.14	50.5	10.5	5 1/2	10 3/4
L	51	16.34	51	11	5 3/4	11 1/4
L 1/2	52	16.54	52	12	6	12
M	53	16.74	53	13	6 1/4	12 1/2
M 1/2	53.5	16.94	53.5	13.5	6 1/2	13 1/4
N	54	17.14	54	14	6 3/4	13 3/4
N 1/2	54.5	17.34	54.5	14.5	7	14 1/2
O	55	17.54	55	15	7 1/4	15
O 1/2	55.5	17.74	55.5	15.5	7 1/2	15 3/4
P	56	17.94	56	16	7 3/4	16 1/4
P 1/2	57	18.14	57	17	8	17
Q	58	18.34	58	18	8 1/4	17 1/2
Q 1/2	58.5	18.54	58.5	18.5	8 1/2	18 1/4
R	59	18.74	59	19	8 3/4	18 3/4
R 1/2	59.5	18.94	59.5	19.5	9	19 1/2
S	60	19.14	60	20	9 1/4	20
S 1/2	60.5	19.34	60.5	20.5	9 1/2	20 3/4
T	61	19.54	61	21	9 3/4	21 1/4
T 1/2	62	19.74	62	22	10	22
U	63	19.94	63	23	10 1/4	22 1/2
U 1/2	63.5	20.14	63.5	23.5	10 1/2	23 1/4
V	64	20.34	64	24	10 3/4	23 3/4
V 1/2	64.5	20.54	64.5	24.5	11	24 1/2
W	65	20.74	65	25	11 1/4	25
W 1/2	65.5	20.94	65.5	25.5	11 1/2	25 3/4
X	66	21.14	66	26	11 3/4	26 1/4
X 1/2	67	21.34	67	27	12	27
Y	68	21.54	68	28	12 1/4	27 1/2
Y 1/2	68.5	21.74	68.5	28.5	12 1/2	28 1/4
Z	69	21.94	69	29	12 3/4	28 3/4
Z 1/2	69.5	22.14	69.5	29.5	13	29 1/2

Most asked questions

GIA Certified Diamond Engagement Rings

Every natural diamond engagement ring sold at GS Diamonds comes with a GIA Diamond Report - a guarantee of quality and authenticity. This means that the stone in your engagement ring has been graded by the GIA’s rigorous grading standards to determine its quality against the four main factors: Cut, clarity, colour, and carat weight. When you purchase a certified diamond ring from GS Diamonds, you know that your stone has been inspected and evaluated by an independent third party, giving you added peace of mind with your purchase.

Purchasing a proposal ring from GS Diamonds also means joining thousands of happy customers who have trusted us to create their perfect ring. Through our boutiques in Sydney, Brisbane,Melbourne, and Peth, as well as our Australia-wide engagement rings online service, our expert team has helped curate meaningful pieces for couples across the country. Our 5-star reviews reflect the care, craftsmanship and guidance we provide at every step.

If you’re looking to create something truly personal, our custom design process allows you to build your own engagement ring and bring your vision to life in as little as 4-8 weeks. You can begin with an initial consultation, where our specialists guide you through thousands of design options using detailed 3D renders. Once your design is finalised, your ring enters production, typically taking 2-5 weeks depending on materials and seasonality. After completion, each piece undergoes rigorous quality control before delivery or in-store collection, where you can review your ring before final handover.

Start your journey and create a one-of-a-kind piece with our bespoke engagement ring service.