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Verified Sunshine Diamonds discount codes on Koubonat: copy AUTUMN18 before checkout. AUTUMN18 takes 18% off sitewide, and DECADE65 brings the 1 carat lab-grown diamond studs down from £699 to £249. Both codes are open to all regions according to the advertiser, and UK delivery is insured and free.
Quick answer: The best Sunshine Diamonds code right now is AUTUMN18 (up to 18% off), valid in all supported countries. Last verified October 18, 2026. 3 active codes on this page.
Continue to Sunshine Diamonds ↗| Discount code | Shown after click |
|---|---|
| Discount value | 18% |
| Status | Updated |
| Last verified | 3 days ago |
18% off natural diamond jewellery in the Autumn Diamond Event, valid in all regions. Copy AUTUMN18 from Koubonat, paste it at Sunshine Diamonds checkout, and confirm the discount in the summary.
| Discount code | Shown after click |
|---|---|
| Discount value | £450 |
| Status | Updated |
| Last verified | 3 days ago |
D colour, VS clarity studs in 9K white gold with free fast UK delivery, code open to all regions. Copy DECADE65 from Koubonat, paste it at Sunshine Diamonds checkout, and confirm the discount in the summary.
| Discount code | Shown after click |
|---|---|
| Discount value | عرض خاص |
| Status | Updated |
| Last verified | 3 days ago |
A classic 5 carat lab-grown diamond tennis bracelet in 9K white gold, open to all regions through the link. Tap “Get the deal” to open the offer page on Sunshine Diamonds; the final price shows in the cart before you pay.
Also browse: Best Jewelry stores · All stores
The top pick is "Sunshine Diamonds 18% off sitewide — AUTUMN18" worth 18%. Compare the rest of the offers on this page before checkout.
There are 3 active coupons on this page. The count changes as we update the page.
Yes, copying codes from Koubonat is free. Acceptance at checkout is subject to Sunshine Diamonds's own terms.
Try another code from the same page, check the minimum order requirement, or reach out to support via our contact page.
| Discount code | Shown after click |
|---|---|
| Discount value | كوبون Temu |
| Status | Updated |
| Last verified | 3 days ago |
Use code TEC58 for special discount at Temu. Copy from Koubonat, apply at checkout, and confirm the final total before paying.
| Discount code | Shown after click |
|---|---|
| Discount value | خصم مشوار |
| Status | Updated |
| Last verified | 3 days ago |
Use code AA4O for ride at Jeeny. Copy from Koubonat, apply at checkout, and confirm the final total before paying.
| Discount code | Shown after click |
|---|---|
| Discount value | حتى 50% |
| Status | Updated |
| Last verified | 3 days ago |
25% to 50% off selected shoes and apparel in the Sale section on Nike Saudi Arabia. Tap “Get the deal” to open the offer page on Nike; the final price shows in the cart before you pay.
| Discount code | Shown after click |
|---|---|
| Discount value | شحن مجاني |
| Status | Updated |
| Last verified | 3 days ago |
Selected items with faster delivery and free shipping once you pass the basket threshold for your country. Tap “Get the deal” to open the offer page on AliExpress; the final price shows in the cart before you pay.
Koubonat interactive guide
English guide for Sunshine Diamonds promo code shoppers — with AUTUMN18 / DECADE65 ready to copy at the top of the page.
اختر موضوعاً من الأزرار — المحتوى يتبدل تحتها دون مغادرة الصفحة.
When you know what you need and AUTUMN18 lowers the payable total after fees.
Look for a discount line or lower total. Flat price = rejection.
Finalize choices. Try AUTUMN18 on a complete basket.
Country, minimum, excluded categories.
Compare totals — sale-only can win.
Plan to confirmed discount.
1 / 4
Set budget and need.
Pick the closest need.
Copy AUTUMN18 after the basket is final.
Set KSA before paste.
Compare code vs visible sale.
Match country to your address.
Add real needs or switch code.
The best Sunshine Diamonds discount code on Koubonat right now is AUTUMN18, with DECADE65 as the backup. AUTUMN18 takes 18% off sitewide, and DECADE65 brings the 1 carat lab-grown diamond studs down from £699 to £249. Both codes are open to all regions according to the advertiser, and UK delivery is insured and free.
Shoppers land here from searches like “Sunshine Diamonds discount code”, “Sunshine Diamonds AUTUMN18”, “Hatton Garden diamond jewellery deal”, “1 carat lab grown diamond studs offer”. The workflow is the same every time: copy the code from the card, open Sunshine Diamonds from the deal button, and paste the code in the promo field before paying.
| Offer | Code | Value | Use |
|---|---|---|---|
| Sunshine Diamonds 18% off sitewide — AUTUMN18 | AUTUMN18 | 18% | Copy from card |
| Sunshine Diamonds engagement ring code — AUTUMN18 | AUTUMN18 | 18% | Copy from card |
| Wedding bands and pendants code — AUTUMN18 | AUTUMN18 | 18% | Copy from card |
| 1 carat lab-grown diamond studs £249 instead of £699 — DECADE65 | DECADE65 | £450 | Copy from card |
| Deal of the Week: 5 carat lab-grown tennis bracelet in white gold | Link deal | عرض خاص | Open deal |
Sunshine Diamonds is a jeweller and jewellery manufacturer based in Hatton Garden, London's historic diamond quarter. It sells direct to customers through its website rather than through high-street chains, and says this cuts out middleman costs and keeps diamond prices closer to the workshop. The team cites more than 50 years of experience in the diamond and gemstone trade and describes itself as one of the early UK jewellers to let shoppers customise jewellery online.
The range covers engagement rings in every common style (solitaire, halo, side-stone and three-stone), wedding bands for women and men, stud and drop earrings, tennis bracelets and bangles, necklaces and pendants. Stones come as natural diamonds or lab-grown diamonds, alongside sapphire, ruby, emerald, aquamarine and pearl, and metals include white, yellow and rose gold, platinum, and sterling silver 925 on some designs.
What matters most when buying an expensive piece online is the safety net, and Sunshine Diamonds offers several: a 30-day money-back policy with free return shipping, a 5-year manufacturing guarantee, fully insured delivery, and a London showroom you can visit by appointment. Many designs can be customised by metal, carat weight, diamond colour, clarity and ring size, and the team also takes fully bespoke commissions.
The current codes suit two kinds of buyer. If you want a ring or bracelet with a high full price, AUTUMN18 takes 18% off sitewide. If you want a ready gift at a fixed price, DECADE65 gets you 1 carat lab-grown diamond studs in D colour and VS clarity set in 9K white gold for £249. Alongside them, a Deal of the Week on a 5 carat lab-grown tennis bracelet works through the link.
The code applies before you pick a payment method, so the discount shows however you pay. Options at Sunshine Diamonds:
Sunshine Diamonds runs a 30-day money-back policy: you can return, exchange or resize a piece within 30 days of purchase, the store pays return shipping, and you choose store credit or a refund to your bank account. Collection and drop-off can be arranged by phone, or you can hand the piece in at the London showroom. Items made to your special requirements are excluded from the standard 14-day cancellation right in the terms, so ask about your piece before ordering. The 5-year manufacturing guarantee covers workmanship faults after inspection.
Sunshine Diamonds sells internationally, and shipping and currency details depend on where you are. Here is what matters by region:
The UK is the home market: free insured Royal Mail delivery, same-day dispatch for ready pieces paid before 3pm, and the option to visit the Hatton Garden showroom by appointment.
Orders to Europe go by FedEx, but since Brexit local VAT and customs charges may apply on arrival, so add them before comparing prices.
Shipping to the US goes by FedEx with prices in GBP, and both codes are open to all regions; check US import charges on jewellery before you order.
The store ships internationally by FedEx, insured to the door, so you can order to Saudi Arabia, the UAE, Kuwait, Qatar, Bahrain, Oman and Egypt, but customs duty and VAT in your country are paid by you on delivery. AUTUMN18 and DECADE65 are listed for all regions, and the saving can still be real after charges, especially on lab-grown diamonds. Confirm your ring size before ordering because international returns take time.
Elsewhere: international delivery is available by FedEx, prices are in GBP, and local charges are on the buyer; your bank may add a small currency conversion fee.
Offers change faster than usual in these seasons; reopen the Sunshine Diamonds page on Koubonat before ordering because the cards are refreshed first.
Fix: identify the reason above, then try the backup DECADE65 on the same basket. If the total does not move, the offer does not cover your current basket.
High-street jewellers carry shop and middleman costs, while Sunshine Diamonds sells straight from the workshop, and a code adds a further saving on top. On a £1,500 engagement ring, for example, AUTUMN18 saves about £270, and DECADE65 makes the 1 carat studs £249 instead of £699. Always compare diamond type (natural or lab-grown), colour, clarity and metal between stores, because the price gap between natural and lab-grown is large.
| Brand | Sunshine Diamonds |
|---|---|
| Official site | sunshinediamonds.com |
| Category | Jewelry |
| Based in | Hatton Garden, London, United Kingdom — operated by Jewellery Trading Company Ltd, registered in England and Wales |
| Offer type | Promo code + deal link |
| Best code now | AUTUMN18 then DECADE65 |
| Offers | 5 on Koubonat |
| Payment | Major credit and debit cards, PayPal Pay Later in 4 interest-free payments, PayPal Credit at 0% for 4 months on spends of £99 or more (UK residents, subject to approval), 0% APR finance over 12 months, subject to credit approval |
| Last checked | October 17, 2026 |
If Sunshine Diamonds does not have what you need or the offer does not fit your basket, compare these stores from the same category first:
