14K Gold Vermeil — A thick layer of 14K gold bonded over solid 925 sterling silver. Unlike standard gold plating, vermeil is designed to last and gives you the look and feel of fine gold jewellery without the solid gold price. Nickel-free and suitable for sensitive skin. 925 Sterling Silver with Rhodium Finish — Solid 925 sterling silver finished with a protective layer of rhodium, a precious metal from the platinum family. The rhodium gives a bright, luminous white shine and helps guard against tarnishing. Nickel-free and suitable for sensitive skin.
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- Selene Natural Moss Agate Ring
Selene Natural Moss Agate Ring
Ring size guide
We make full US sizes. The bold letter is the exact UK match; the others fit best in that ring. The mm measurement is the true guide — between two sizes, round up.
| US | UK (best fit) | EU / circ. | Diameter |
|---|---|---|---|
| 3 | E, E½, F, F½ | 44.0 mm | 14.0 mm |
| 4 | G, G½, H, H½ | 47.0 mm | 15.0 mm |
| 5 | I, I½, J, J½ | 49.0 mm | 15.6 mm |
| 6 | K, K½, L, L½ | 51.75 mm | 16.5 mm |
| 7 | M, M½, N, N½ | 54.2 mm | 17.25 mm |
| 8 | O, O½, P, P½ | 57.0 mm | 18.1 mm |
| 9 | Q, Q½, R, R½ | 59.0 mm | 18.8 mm |
| 10 | S, S½, T, T½ | 62.0 mm | 19.7 mm |
Half or quarter US size? A .25 takes the size below (6.25 → 6); a .5 or .75 rounds up (6.5 or 6.75 → 7).
Measure at home
- Wrap paper or string around the base of your finger (not over the knuckle).
- Mark the overlap and measure the length in mm.
- Match it to the EU / circumference column. Or measure the inside of a ring you own and use the Diameter column.
Tip: measure at the end of the day, when fingers are largest. Between sizes? Size up.
Necklace lengths
We offer 45 cm (18 in) and 50 cm (20 in). Here's where each sits.
| Length | Inches | Where it sits |
|---|---|---|
| 40 cm | 16 in | Choker — base of the neck |
| 45 cm | 18 in | Most popular — on the collarbone |
| 50 cm | 20 in | Just below the collarbone — easy to layer |
| 55 cm | 22 in | Upper chest |
How to measure
- Drape a string around your neck where you'd like the necklace to sit.
- Mark the spot and measure against a ruler.
- Layering? Choose lengths about 5 cm (2 in) apart.
Bracelet sizes
Measure your wrist, then add about 1.5–2 cm for a comfortable fit.
| Wrist measurement | Fit |
|---|---|
| 14–15 cm | Petite |
| 15–16.5 cm | Small / Average |
| 16.5–18 cm | Medium |
| 18–19.5 cm | Large |
How to measure your wrist
- Wrap paper or string around your wrist, just below the wrist bone.
- Mark the overlap and measure in cm.
- Add 1.5–2 cm for comfort.
Beaded styles suit most wrists; tennis bracelets are a set length — see the product details.
Still unsure? Message us with your measurement and we'll recommend your size. Every piece has a 365-day guarantee.
✨ 20% off everything this Bank Holiday
✨ No code needed — ends Tuesday 12pm
A stunning Selene Moss Agate Ring featuring a pear-cut natural stone with unique green inclusions, framed by delicate accents for a soft, nature-inspired elegance. Symbolising grounding and renewal, it’s a meaningful choice for engagements, birthdays, anniversaries, or special promises.
- Pear-cut natural moss agate with accent stones
- Solid sterling silver or 14K gold vermeil over sterling silver
- Symbolises growth, balance, and connection to nature
Material
Gemstone
Moss agate is known for its unique moss-like inclusions and soothing green hues. It is cherished as a stone of growth, new beginnings, and connection to the earth — promoting emotional balance and renewal.
Measurements
Centre stone: 7x5mm | Surrounding stones: 3x3mm; 2x2mm
Size Guide
Size Guide
Everything you need to find the perfect fit. Our pieces are 925 sterling silver finished in 14k gold vermeil, rose gold vermeil or rhodium — and we always tell you exactly what you're buying. If you're ever unsure, message us and we'll happily help.
Ring size conversion
Every brand sizes a little differently, so we measured our own rings. We make full US sizes, and the chart below maps each one to UK and EU sizes. The bold letter is the exact UK match; the others in that row are the in-between sizes that fit best in that ring.
| US | UK (best fit) | EU / circumference | Inner diameter |
|---|---|---|---|
| 3 | E, E½, F, F½ (or smaller) | 44.0 mm | 14.0 mm |
| 4 | G, G½, H, H½ | 47.0 mm | 15.0 mm |
| 5 | I, I½, J, J½ | 49.0 mm | 15.6 mm |
| 6 | K, K½, L, L½ | 51.75 mm | 16.5 mm |
| 7 | M, M½, N, N½ | 54.2 mm | 17.25 mm |
| 8 | O, O½, P, P½ | 57.0 mm | 18.1 mm |
| 9 | Q, Q½, R, R½ | 59.0 mm | 18.8 mm |
| 10 | S, S½, T, T½ (or larger) | 62.0 mm | 19.7 mm |
The millimetre measurement is the true guide — US, UK and EU are just labels that approximate it. Between two sizes? Round up.
Measure with string or paper
- Wrap a strip of paper or string snugly around the base of your finger — not over the knuckle.
- Mark where it overlaps.
- Lay it flat against a ruler and measure the length in mm.
- Match that number to the EU / circumference column above.
Measure a ring you own
- Take a ring that already fits the right finger well.
- Measure straight across the inside, in mm.
- Match it to the Inner diameter column above.
Necklace lengths
We currently offer our necklaces in 45 cm (18 in) and 50 cm (20 in). Here's where each length sits, so you can picture it before you choose.
| Length | Inches | Where it sits |
|---|---|---|
| 40 cm | 16 in | Choker — sits at the base of the neck |
| 45 cm | 18 in | Our most popular — rests on the collarbone |
| 50 cm | 20 in | Sits just below the collarbone — easy to layer |
| 55 cm | 22 in | Falls on the upper chest |
Bold lengths are the sizes we offer. 16 in and 22 in are shown for reference.
How to measure
- Take a piece of string and drape it around your neck where you'd like the necklace to sit.
- Mark the spot and measure the length against a ruler.
- Compare to the chart above. Layering two pieces? Choose lengths about 5 cm (2 in) apart so they sit nicely.
Bracelet sizes
The right bracelet fit leaves a little room to move comfortably. Measure your wrist first, then check the guide below.
How to measure your wrist
- Wrap a strip of paper or string around your wrist, just below the wrist bone (where a bracelet naturally sits).
- Mark where it overlaps and measure in cm — that's your wrist size.
- For a comfortable fit, add about 1.5–2 cm to your wrist measurement.
| Wrist measurement | Fit |
|---|---|
| 14–15 cm | Petite |
| 15–16.5 cm | Small / Average |
| 16.5–18 cm | Medium |
| 18–19.5 cm | Large |
Free UK Delivery: Spend over £65 for complimentary standard delivery, or over £95 for free express.
Free Global Shipping: Spend over £95 for free tracked worldwide shipping — including duties covered for all US orders, no surprise fees.
Fast Dispatch: Orders dispatched within 1 working day.
Easy Returns: Return unworn items within 30 days of delivery. Excludes earrings, personalised pieces and custom solid gold items.
We stand behind the quality of every piece. If your jewellery develops a manufacturing fault within 365 days, we'll repair or replace it — no quibbles. Just email us or message us via online chat.
Designed for everyday wear and crafted with care.
Why You’ll Love It
Lab-Grown or Natural Gemstones
Identical composition to mined stones — chosen for beauty and ethics.
14k Gold Vermeil
Thick gold over solid 925 silver — not standard plating.
Gift-Ready Packaging
Arrives beautifully packaged — perfect for meaningful gifting.
True-to-Size Fit
Based on standard US sizing. Between sizes? We recommend sizing up.
Tracked & Secure Delivery
Worldwide shipping with full tracking. USA orders shipped duty paid - no surprise fees.
Made to Last
Secure settings designed for everyday wear.
Loved by customers worldwide
Trusted by 19,000+ customers, with a 4.9/5 rating from over 3,400 reviews.
STUNNING!!
“STUNNING!! Pros: 1. Arrived on time! 2. Much care to pack and ship 3. Well made, looks amazing! Cons: 1. NONE I'm wearing to the symphony next wknd, fave little black dress and these beautiful emeralds! Very happy....”
Even prettier in person
“Beautiful ring and even prettier in person. I’m really happy with it!”
The sparkle is unmatched!
“These earrings are SO pretty and the sparkle is unmatched! I can’t wait to wear them for my wedding!”
STUNNING!!
“STUNNING!! Pros: 1. Arrived on time! 2. Much care to pack and ship 3. Well made, looks amazing! Cons: 1. NONE I'm wearing to the symphony next wknd, fave little black dress and these beautiful emeralds! Very happy....”
Even prettier in person
“Beautiful ring and even prettier in person. I’m really happy with it!”
The sparkle is unmatched!
“These earrings are SO pretty and the sparkle is unmatched! I can’t wait to wear them for my wedding!”
STUNNING!!
“STUNNING!! Pros: 1. Arrived on time! 2. Much care to pack and ship 3. Well made, looks amazing! Cons: 1. NONE I'm wearing to the symphony next wknd, fave little black dress and these beautiful emeralds! Very happy....”
Even prettier in person
“Beautiful ring and even prettier in person. I’m really happy with it!”
The sparkle is unmatched!
“These earrings are SO pretty and the sparkle is unmatched! I can’t wait to wear them for my wedding!”
STUNNING!!
“STUNNING!! Pros: 1. Arrived on time! 2. Much care to pack and ship 3. Well made, looks amazing! Cons: 1. NONE I'm wearing to the symphony next wknd, fave little black dress and these beautiful emeralds! Very happy....”
Even prettier in person
“Beautiful ring and even prettier in person. I’m really happy with it!”
The sparkle is unmatched!
“These earrings are SO pretty and the sparkle is unmatched! I can’t wait to wear them for my wedding!”
STUNNING!!
“STUNNING!! Pros: 1. Arrived on time! 2. Much care to pack and ship 3. Well made, looks amazing! Cons: 1. NONE I'm wearing to the symphony next wknd, fave little black dress and these beautiful emeralds! Very happy....”
Even prettier in person
“Beautiful ring and even prettier in person. I’m really happy with it!”
The sparkle is unmatched!
“These earrings are SO pretty and the sparkle is unmatched! I can’t wait to wear them for my wedding!”
STUNNING!!
“STUNNING!! Pros: 1. Arrived on time! 2. Much care to pack and ship 3. Well made, looks amazing! Cons: 1. NONE I'm wearing to the symphony next wknd, fave little black dress and these beautiful emeralds! Very happy....”
Even prettier in person
“Beautiful ring and even prettier in person. I’m really happy with it!”
The sparkle is unmatched!
“These earrings are SO pretty and the sparkle is unmatched! I can’t wait to wear them for my wedding!”
About Rainbow Rocks
Jewellery has always been personal to me — it marks our moments, memories, and meaning. I created Rainbow Rocks so beautiful gemstone pieces wouldn't be out of reach: genuine lab-grown and natural gemstones, set in 14k gold vermeil over sterling silver, made for everyday wear. Each piece is made to be worn, loved, and to hold a story of its own.
— Yan, Founder
-
4.9 Rating from 3,500+ Reviews
Loved by 20,000+ customers worldwide
-
Lab-Grown & Natural Gemstones
Same composition as mined stones — ethically crafted.
-
14k Gold Vermeil & Sterling Silver
Thick gold over solid 925 silver — made for everyday wear
-
365-day guarantee
Every piece covered for a full year — shop with confidence.
Get 15% off your first order
Be the first to know about new collections and exclusive offers.
- 5 stars: 72 (97%)
- 4 stars: 1 (1%)
- 3 stars: 1 (1%)
- 2 stars: 0 (0%)
- 1 star: 0 (0%)
wish the stone i got in mine was a bit darker but beautiful ring. had to file the point edge down was too sharp and scratched my daughter
I can’t believe how beautiful the ring is for the price. I bought this for my proposal as a temporary ring while I save for a real one. Buy my now fiancée loves it!
Yan was incredible as I when I first ordered the ring it was too small! Super timely delivery with updates on when it would arrive. Beautiful product that is really great value for money. Highly recommend!
It’s so pretty! My hands are too swollen to wear my wedding ring right now, and I’m using this as the stand in.
STUNNING!! I got this as my work engagement ring as I work a very manual job and didn't want to damage my actual one. It is perfect, so beautiful
The ring itself is gorgeous. This is a replacement to my original engagement ring!
The customer service was absolutely fab as well, I had to send it back out due to ordering a size too big and I've received it back this morning and I love it! Delivery was quick, amazing.
What a beautiful ring. I got it as a second engagement ring for casual wear and it's absolutely stunning.
Beautiful ring! I lost my engagement ring and needed something affordable but pretty to replace it while I save up for a new one and this is the perfect mix of affordable but stunning.
The order was shipped quickly and arrived at my home in Spain in just 3 days. It came perfectly packaged and protected. The ring is exactly as shown in the pictures. It's very nice. Thank you very much!!
Such a beautiful ring! Bought it as my engagement ring. It’s exactly as shown in the picture. Well crafted and fits perfectly. The crafting and shipping was very quick. A pleasure to buy from this seller, would definitely purchase from this shop again. ♥️
Such a lovely ring, smaller than the videos looked but I only have small hands. Seems well crafted and such a lovely stone colour . I'm so happy with it. A lovely anniversary present .
Ring looked as pictured and described. Unfortunately the ring did not fit, despite what I believe to be my accurate measurements, so perhaps the sellers ring chart is incorrect? Unsure. But I was able to exchange my ring for a new size, again, still did not fit, so I received a full refund, and had great communication with the seller throughout.
Wife loves the ring and is over the moon with it
Sehr schöner Ring! Meine Freundin hat sich mega gefreut
Perfect! Shipping was really fast. Thank you!
simply perfect
Pretty ring, but stone was cloudy.