
★★★★★
Beautiful Quality & Service
The diamond looked breathtaking the moment I opened the package. Under sunlight it sparkles beautifully and the clarity exceeded my expectations. You can truly see the quality up close.
Michelle W. · Verified buyer
Our story
Éternel began with a simple belief: exceptional jewelry should be honest about what it is, and fairly priced for what it's worth.
Who we are
Fine jewelry has long been obscured by complexity and markup. At Éternel, transparency is fundamental. Every certified diamond we offer comes with its independent grading report, and every jewelry piece is described exactly as it is made: the metal, the plating, the stone.
We sell direct, so you pay for craftsmanship and quality rather than a showroom.
Two ways to shine
Shop Diamonds gives you access to thousands of IGI and GIA certified lab-grown and natural diamonds at trade-level prices.
Our jewelry collection sets moissanite in solid 925 sterling silver finished in 18K gold vermeil, designed to be worn every day.
By the numbers
In their words

★★★★★
The diamond looked breathtaking the moment I opened the package. Under sunlight it sparkles beautifully and the clarity exceeded my expectations. You can truly see the quality up close.
Michelle W. · Verified buyer

★★★★★
The custom ring experience was incredible. They helped us choose the perfect pear diamond and kept me updated the entire time. The craftsmanship is stunning and I’ve received endless compliments.
Yousara · Verified buyer

★★★★★
I ordered a 1 carat lab diamond took a while to arrive because I was not home to sign for the parcel the diamond was top quality but delivery was a challenge because they need you need you to sign
Donald W. · Verified buyer

★★★★★
Searched everywhere for a pink diamond finally found one amongst the thousands on eternel 2.00ct, also saved a bunch on the price, receieved it swiftly, thanks again
Rebecca · Verified buyer

★★★★★
The whole process felt premium from start to finish. My IGI certified stones arrived exactly as promised this morning even better in person, I'm happy with my order.
Tristen · Verified buyer

★★★★★
I wanted a certified diamond I could trust and Éternel delivered perfectly. The stone looked flawless under close inspection and the brilliance is incredible. Premium quality and an amazing buying experience.
Nancy R. · Verified buyer

★★★★★
I was hesitant buying online, but after speaking to Mellissa she sourced me a 1.10 for the price of 1 carat, payment was easy i used paypal and received my diamond a few days later on the monday, great service and friendly team, I will use eternel again
Laura M. · Verified buyer
Find your piece
Mix & match any pieces and save up to 15%, automatically.
Size guide
Wrap a strip of paper around the base of your finger, mark where it overlaps and measure the length in millimetres. Match it to the circumference below. Between sizes? Choose the larger size.
| US | Diameter (mm) | Circumference (mm) | UK & AU | EU |
|---|---|---|---|---|
| 5 | 15.7 | 49.3 | J½ | 49 |
| 5.5 | 16.1 | 50.6 | K½ | 50.5 |
| 6 | 16.5 | 51.9 | L½ | 52 |
| 6.5 | 16.9 | 53.1 | M½ | 53 |
| 7 | 17.3 | 54.4 | N½ | 54.5 |
| 7.5 | 17.7 | 55.7 | O½ | 56 |
| 8 | 18.1 | 57.0 | P½ | 57 |
| 8.5 | 18.5 | 58.3 | Q½ | 58.5 |
| 9 | 18.9 | 59.5 | R½ | 59.5 |
| 9.5 | 19.4 | 60.8 | S½ | 61 |
| 10 | 19.8 | 62.1 | T½ | 62 |
Full international chart: ring size guide. Still unsure? Message us and we’ll help.