Ready to Ship Engagement Rings >

Alcyone Trilogy Engagement Ring with 1.37 ct Lab Grown Diamonds

Alcyone Trilogy Engagement Ring with 1.37 ct Lab Grown Diamonds

€2,350 €2,350 Total Price (includes VAT)

Pay in 3 installments with

and

Exclusive Offer | 15% Off Apply discount (See terms)

Terms

All jewellery, excludes wedding rings

Discount will be added at checkout

Coupon code: BENVENUTO

Expire date: Unlimited

View product details

An expert will contact you after purchase to help with sizing.

Consult an expert

Order now and receive it within 24/48 hours.

Free shipping across Europe

Free 10 day resizing

Free 15 day returns

Every package is a sky, every ring a star

Our experts craft each piece of jewelry with care and precision. You will receive your handmade ring in our exclusive blue package adorned with a starry sky design, accompanied by a GIA or IGI diamond authenticity certificate and selected gadgets, ready for your special moment.

Customer Reviews

300+ Reviews

Leave a review

Trustpilot 4.9

Leave a review

All Reviews

Google

Trustpilot

Customers say about:

Daniel Hopkins

1 month ago

Can not speak highly enough about the service and product. Francesco is a true professional and he even delivered the ring personally and sent follow up messages afterward. Everything was do...

Giuseppe

1 month ago

There are no words to describe how grateful we are to Francesco and the entire Bongioielli team. I chose to order my ring from Germany because, after extensive research, I couldn't find such...

Margherita Alicandro

1 month ago

When my fiancé opened the box, I was speechless. The ring was dazzling and completely in my style: my fiancé was able to personalize it perfectly with the professional help of the gemologist...

Rawdha Ben Mohamed

1 month ago

My husband and I stopped by the shop yesterday. Even though I hadn't booked in advance, Francesco was very accommodating in finding us a space between appointments, making us feel immediatel...

Simone Masuero

1 month ago

I really didn't know where to start when choosing an engagement ring, so I asked ChatGPT for advice on reliable sites where I could create a custom ring. Of the various options recommended, ...

Giada Bianchi

1 month ago

Size guide

Find the perfect fit

Don't know your size or can't find it available?

No worries! Just select 'I don’t know' from the dropdown menu when placing your order. An expert will contact you after your purchase to help you out.

Diameter (mm)	Universal Size	Italy	US
14.9	47	7	4.2
15.3	48	8	4.5
15.6	49	9	5
15.9	50	10	5.4
16.2	51	11	5.8
16.5	52	12	6.2
16.9	53	13	6.5
17.2	54	14	7
17.5	55	15	7.3
17.8	56	16	7.8
18.1	57	17	8.1
18.5	58	18	8.5
18.8	59	19	8.9
19.1	60	20	9.2
19.4	61	21	9.6
19.7	62	22	10
20	63	23	10.4
20.4	64	24	10.8
20.7	65	25	11.2

Size by diameter

Ring size is based on the internal diameter in millimeters. It is the distance between the inner sides of the ring, measured straight across through the center.

Planning a proposal or just need the exact ring size?

Take a look at our helpful advice
Download the complete ring sizing guide

Have questions or concerns? Contact our customer service.

We also offer a free resizing service within 10 days of receiving your ring

We’ll send you a ring sizer once you’ve placed your order.

Size guide

Find the perfect fit

Bracelet Size	Wrist Size
15	13.5
15.5	14
16	14.5
16.5	15
17	15.5
17.5	16
18	16.5
18.5	17
19	17.5
19.5	18
20	18.5
20.5	19
21	19.5
21.5	20
22	20.5

Diamond Points

In diamonds, a “point” is a unit of weight: 1 point equals one-hundredth of a carat (0.01 ct). This measurement is used not only to indicate a diamond’s weight, but also its visual size.

As the number of points increases, the diamonds appear larger and the bracelet looks fuller and more brilliant. Fewer points create a more delicate and refined look.

Measure Your Wrist

Wrap a measuring tape around your wrist so it fits snugly without being tight, then note the measurement in centimeters. For a more comfortable fit, we recommend adding approximately 1.5 cm to your wrist measurement.

Alcyone Trilogy Engagement Ring with 1.37 ct Lab Grown Diamonds

Ring Information

Central Diamond

Diamond Accents

Customer Reviews