Diamond Solitaire Engagement Ring with Sapphire

Birks Blue Round Diamond Solitaire Engagement Ring with Sapphire Accent image number 3

Birks Blue Round Diamond Solitaire Engagement Ring with Sapphire Accent image number 4

About
Shipping & Returns

Capture the glow of true love with this solitaire diamond engagement ring. Cherished for its striking blue colour, the hidden sapphire is indicative of wisdom, trust and faith.

Available in platinum and 18k white, rose, and yellow gold. Bezel-set accent sapphire, matching wedding bands available. More ring sizes and carat weights are available upon special order. Contact us for more information.

Product Information

Details

Product Number: BBSOLITAIRE-WG
Style: Solitaire
Center Stone Shape: Round
Primary Stone: Diamond
Accent Stone: Sapphire
Collection: Birks Blue®
Material: 18k White Gold

VALENTINE'S DAY SHIPPING POLICY

Order by Monday, February 9^th for delivery by February 14^th, 2026. For orders with engraving, order before January 26^th for delivery by February 14^th, 2026.*

SHIPPING

All purchases arrive in a complimentary signature Birks Blue Box ®. To ensure the satisfaction of parcel reception, all our packages require a signature upon delivery.

Enjoy free standard shipping within Canada. To ensure the satisfaction of parcel reception, all our packages require signature upon delivery. The estimated delivery time is 2 to 5 days business days.

For orders outside Canada, contact our Client Services team at info@birks.com. Please provide your name, billing and shipping addresses, phone number, as well as the item you would like to buy and its size (if applicable). For more information, click here.

Birks Blue ^®

White Gold Round Diamond Solitaire Engagement Ring with Sapphire Accent

Starting at:

$ 5,400

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Metal: 18K White Gold

Select Diamond

Filters

Cut:

All Birks diamonds are excellent cut

Carat Weight: 0.20 - 5.00

0.20 5.00

Price Range: $1,500 - $100,000+

$1,500 $100,000+

Color:

Clarity:

Select a Diamond Filter

Carat	Colour	Clarity	Availability
18 Results
1.00	I	SI1	In Stock
0.72	I	SI1	In Stock
0.70	H	VS2	In Stock
0.70	H	VS2	In Stock
0.70	H	VS2	In Stock
0.70	H	VS2	In Stock
0.70	H	VS2	In Stock
0.50	H	VS2	In Stock
0.50	G	VS2	In Stock
0.52	G	VS1	In Stock
0.50	H	VS2	In Stock
0.50	H	VS2	In Stock
0.77	H	F	Contact an Expert
1.00	E	IF	Contact an Expert
0.70	I	SI1	In Stock
0.51	H	VS1	In Stock
0.50	H	VS1	In Stock
0.50	H	VS2	In Stock

Need Help? We can help craft your perfect ring. Contact an Expert

Estimated Price:

Ring Size Guide

Find Your Perfect Size

Measure an existing ring

Find a ring that already fits your finger well.
Measure the interior diameter of the ring in millimetres.
Use the measurement chart to match the size of your ring to the closest size in millimetres.

Please see our ring sizing tips below for things to consider.

Sizing Chart

*Note: All measurements are in millimetres.

Diameter	US	UK	European
14.90	4.0	H 1/2	47.00
15.30	4.5	I 1/2	48.00
15.69	5.0	J 1/2	49.50
16.09	5.5	K 1/2	51.00
16.49	6.0	L 1/2	52.00
16.89	6.5	M 1/2	53.00
17.29	7.0	N 1/2	54.50
17.68	7.5	O 1/2	56.00
18.08	8.0	P 1/2	57.00
18.48	8.5	Q 1/2	58.00
18.88	9.0	R 1/2	60.00
19.28	9.5	S 1/2	61.00
19.67	10.00	T 1/2	62.00
20.07	10.50	U 1/2	63.50
20.47	11.00	V 1/2	65.00
20.87	11.50	W 1/2	66.00
21.27	12.00	X 1/2	67.00

Ring Sizing Tips

Selecting a larger size

Your finger size changes throughout the day, so it’s always best to choose a ring that’s a bit larger rather than too small.
If you wish to vary the hand on which you’ll wear the ring, choose the ring size of the largest finger you’ll be wearing the ring on.

Stackable rings

When buying multiple stackable rings, select one full size up from your typical size, as you'll be more comfortable wearing them together (e.g. if you're typically a size 6, consider a size 7).

Wide shark rings

Order one size up from your normal ring size, as this ring will take up more surface area on your finger (e.g. if you're typically a size 6, consider a size 7).

Our jewellery experts are always here to help, contact us via chat, info@birks.com or +1 (855) 873-7373.

Find Your Perfect Size

The hands-on method

Wrap a tape measure, length of string or strip of paper around the finger you'll wear your ring on.
With a pen or pencil, mark where the strip meets itself. Make sure the paper or string is evenly overlapped.
Measure the length of the string or paper in millimetres.

Please see our ring sizing tips below for things to consider.

Sizing Chart

*Note: All measurements are in millimeters.

Circumference	US	UK	European
46.81	4.0	H 1/2	47.00
48.07	4.5	I 1/2	48.00
49.29	5.0	J 1/2	49.50
50.55	5.5	K 1/2	51.00
51.80	6.0	L 1/2	52.00
53.06	6.5	M 1/2	53.00
54.32	7.0	N 1/2	54.50
55.54	7.5	O 1/2	56.00
56.80	8.0	P 1/2	57.00
58.06	8.5	Q 1/2	58.00
59.31	9.0	R 1/2	56.00
60.57	9.5	S 1/2	61.00
61.80	10.00	T 1/2	62.00
63.05	10.50	U 1/2	63.00
64.31	11.00	V 1/2	65.00
65.57	11.50	W 1/2	66.00
66.82	12.00	X 1/2	67.00

Ring Sizing Tips

Selecting a larger size

Your finger size changes throughout the day, so it’s always best to choose a ring that’s a bit larger rather than too small. If you wish to vary the hand on which you’ll wear the ring, choose the ring size of the largest finger you’ll be wearing the ring on.

Stackable rings

When buying multiple stackable rings, select one full size up from your typical size, as you'll be more comfortable wearing them together (e.g. if you're typically a size 6, consider a size 7).

Wide shark rings

Order one size up from your normal ring size, as this ring will take up more surface area on your finger (e.g. if you're typically a size 6, consider a size 7).

Our jewellery experts are always here to help, contact us via chat, info@birks.com or +1 (855) 873-7373.

Financing Available with .* Apply Apply

Book an Appointment

All images shown are for illustration purposes only. Actual product may vary. Birks reserves the right to change the font, size and text orientation depending on the engraving message for best result.

Please note the estimated time for our engraving services is 7 to 10 business days. Engraved items are final sale.

Price varies based on diamond specifications and chosen metal. Images serve as illustrations, actual product may vary.

The Birks diamond guarantee ensures that your beautiful jewellery will be safeguarded and maintained at the highest possible standard, so you can enjoy it for years to come.

Capture the glow of true love with this solitaire diamond engagement ring. Cherished for its striking blue colour, the hidden sapphire is indicative of wisdom, trust and faith.

Product Information

Details

Product Number: BBSOLITAIRE-WG
Style: Solitaire
Center Stone Shape: Round
Primary Stone: Diamond
Accent Stone: Sapphire
Collection: Birks Blue®
Material: 18k White Gold

VALENTINE'S DAY SHIPPING POLICY

Order by Monday, February 9^th for delivery by February 14^th, 2026. For orders with engraving, order before January 26^th for delivery by February 14^th, 2026.*

SHIPPING

All purchases arrive in a complimentary signature Birks Blue Box ®. To ensure the satisfaction of parcel reception, all our packages require a signature upon delivery.

Enjoy free standard shipping within Canada. To ensure the satisfaction of parcel reception, all our packages require signature upon delivery. The estimated delivery time is 2 to 5 days business days.

About
Shipping & Returns

Capture the glow of true love with this solitaire diamond engagement ring. Cherished for its striking blue colour, the hidden sapphire is indicative of wisdom, trust and faith.

Product Information

Details

Product Number: BBSOLITAIRE-WG
Style: Solitaire
Center Stone Shape: Round
Primary Stone: Diamond
Accent Stone: Sapphire
Collection: Birks Blue®
Material: 18k White Gold

VALENTINE'S DAY SHIPPING POLICY

Order by Monday, February 9^th for delivery by February 14^th, 2026. For orders with engraving, order before January 26^th for delivery by February 14^th, 2026.*

SHIPPING

All purchases arrive in a complimentary signature Birks Blue Box ®. To ensure the satisfaction of parcel reception, all our packages require a signature upon delivery.

Enjoy free standard shipping within Canada. To ensure the satisfaction of parcel reception, all our packages require signature upon delivery. The estimated delivery time is 2 to 5 days business days.