Tiana Diamond Ring

US$1,439.50 – US$1,635.79Price range: US$1,439.50 through US$1,635.79

Metal	Choose an option18K White Gold18K Rose Gold18K Yellow GoldPlatinum
Diamond Origin	Choose an optionNaturalLab Grown Natural Lab Grown
Size Guide	Select ring size   > × Ring Size Guide Select your size. All BB Engagement and Wedding rings are made to order. Your size matters to us, so please double check it before you place your order. Size guide measuring, If you need further assistance, contact the team at BB. Wide and cuff style rings are generally wider than a standard band. Half a size should be added to your measurement. This caters for the surface area. If you select a larger ring size, this will incur an additional cost because it requires more metal to work with and more stones where necessary. Please refer to the size guide bellow. × Ring Size Guide Select your size. All BB Engagement and Wedding rings are made to order. Your size matters to us, so please double check it before you place your order. Size guide measuring, If you need further assistance, contact the team at BB. Wide and cuff style rings are generally wider than a standard band. Half a size should be added to your measurement. This caters for the surface area. If you select a larger ring size, this will incur an additional cost because it requires more metal to work with and more stones where necessary. Please refer to the size guide bellow. Size AUS/UK Internal Diametre/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 W 20.8 / 65.3 - W 1/2 21.0 / 65.9 11 1/2 X 21.2 / 66.6 - X 1/2 21.4 / 67.2 12 Y 21.6 / 67.8 - Y 1/2 21.8 / 68.4 12 1/2 Z 22.0 / 69.1 - Z 1/2 22.2 / 69.7 13 Z+1 22.4 / 70.3 - Z+1 1/2 22.6 / 71.0 13 1/2 Z+2 22.8 / 71.6 - Z+2 1/2 23.95 / 75.2 14

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Made to order. Order now and your estimated delivery date is 17th December 2025.

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Ring Details

RING INFORMATION

Style : 

Metal : 

Average width : 

Shape : 

Setting : 

Stone : 

Shape : 

Shape

The shape of a diamond is the geometric appearance of the diamond, or the outline of the stone. It is different from the cut of a diamond. The cut refers to how well the diamond is proportioned, polished, and faceted.

At BB you can choose from the following-

Round

Oval

Cushion

Pear

Princess

Emerald

Asscher

Marquise

Radiant

Heart

Approx Number : 

Approx carat weight : 

Carat

Diamond carat weight measures the weight of the accent stones.

Setting : 

Average Colour : 

Colour

Colour is the natural colour visible in a diamond and does not change over time. Colourless diamonds allow more light to pass through than a coloured diamond, releasing more sparkle and fire.

Absolutely colourless or icy white. The highest colour grade—extremely rare and most expensive.

Colourless. Only miniscule traces of colour can be detected by an expert gemologist—a rare, high quality diamond.

Colourless. Slight colour detected by an expert gemologist, but still considered a “colourless” grade—a high-quality diamond.

Near-colourless. Colour is noticeable when compared to diamonds of better grades, but offers excellent value.

Near-colourless. Colour is noticeable when compared to diamonds of better grades, but offers excellent value.

Near-colourless. Slightly detected Colour—a good value.

Near-colourless. Slightly detected colour—a good value.

Near-colourless. Slightly detected colour—a good value.

Near-colourless. Slightly detected colour—a good value.

Near-colourless. Slightly detected colour—a good value.

Clarity : 

Clarity

The clarity of a diamond relates to the existence and visual appearance of the internal characteristics called inclusions. The surface impurities are called blemishes.Clarity is one of the four Cs of diamond grading, the others being carat, colour and cut.

Flawless with no internal or external flaws. Extremely rare and valuable.

Internally Flawless. No internal flaws.

Very very slightly included 1. Very difficult to see under 10x magnification.

Very very slightly included 2. Very difficult to see under 10x magnification. Slightly more inclusions than VVS1.

Very slightly included 1. Difficult to see inclusions under 10x magnification. Typically cannot see inclusions with the naked eye.

Very slightly included 2. Difficult to see inclusions under 10x magnification. Typically cannot see inclusions with the naked eye. Slightly more inclusions than VS1.

Slightly included 1. Inclusions are visible under 10x magnification, but may not be very visible with unaided eye.

Slightly included 2. Inclusions are visible under 10x magnification and may be visible with unaided eye. More inclusions than SI1.

Treatment : 

Priority Information

• Lifetime Warranty
• Care Guide
• Shipping Policy
• 

  Complementary resize and Annual service

• Customise in studio - Book an appointment