Radiant|Natural|GIA

0.40ct E SI1 Radiant Natural Diamond

VG • E/SI1 • GIA 5426718068

Certificate GIA 5426718068

Diamond specifications and retailer prices

From £709 GBP
$950 USD
As of October 18, 2026
16 retailers carry this diamond
Most expensive: £1,468 GBP at Moon Ocean · As of October 24, 2026
View at Moon Ocean

About this 0.4ct natural radiant diamond

This 0.4ct natural radiant sits in the sub-half-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 5426718068. Listed at 16 retailers as of October 18, 2026. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.40
Carat
E
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishVery Good
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5426718068
Dimensions4.75 × 3.71 × 2.60 mm
L/W Ratio1.28
Top View
4.75 mm3.71 mm0.40 ctE / SI1
OriginNatural
CutVery Good
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateGIA 5426718068
Side View
Table 65.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 70.2%

Caratlytics Score

No score right now
No retailer has confirmed this stone recently, so we are not scoring it. Prices below are as of the date shown.

Price History

Last verified: Oct 18
Current: £1,468 GBP|Low: £709 GBP|High: £2,360 GBP|Avg: £1,032 GBP|-1.1%
Moon Ocean
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
October 24, 2026
Retailer 15£709 GBP
Retailer 6£728 GBP
Retailer 4£743 GBP
Retailer 14£743 GBP
Retailer 13£771 GBP
Retailer 10£793 GBP
Retailer 2£830 GBP
Retailer 9£842 GBP
Retailer 8£857 GBP
Retailer 11£857 GBP
Retailer 7£971 GBP
Retailer 12£1,036 GBP
Retailer 3£1,077 GBP
Retailer 17£1,145 GBP
Retailer 16£1,335 GBP
Moon Ocean£1,468 GBP
Retailer 5£2,328 GBP

35 data points across 17 retailers

16 retailers£709 GBP to £1,468 GBP

Retailer 1
-
£709 GBP
$950 USD
Price last confirmed 12 days ago
Retailer 2
-
£743 GBP
$995 USD
View
Price last confirmed 15 days ago
Retailer 3
-
£743 GBP
$995 USD
View
Price last confirmed 9 days ago
Retailer 4
-
£771 GBP
$1,033 USD
View
Price last confirmed 8 days ago
Retailer 5
-
£793 GBP
$1,062 USD
View
Price last confirmed 8 days ago
Retailer 6
-
£830 GBP
View
Price last confirmed 7 days ago
Retailer 7
-
£842 GBP
$1,128 USD
View
Price last confirmed 13 days ago
Retailer 8
-
£857 GBP
$1,148 USD
View
Price last confirmed 8 days ago
Retailer 9
-
£857 GBP
$1,148 USD
View
Price last confirmed 9 days ago
Retailer 10
-
£971 GBP
A$2,001 AUD
View
Price last confirmed 26 days ago
Retailer 11
-
£1,036 GBP
€1,322 EUR
View
Price last confirmed 8 days ago
Retailer 12
-
£1,077 GBP
View
Price last confirmed 8 days ago
Retailer 13
-
£1,145 GBP
ZAR 24,778 ZAR
View
Price last confirmed 14 days ago
Retailer 14
-
£1,335 GBP
View
Price under review
Most Expensive
Moon Ocean
NVN-584BD2EDB-068 · Oct 24
£1,468 GBP
View
Price under review
14 more retailers have this diamond

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

0.40ct Radiant
£709 GBP