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Radiant|Natural|GIA

0.45ct I SI1 Radiant Natural Diamond

VG • I/SI1 • GIA 6127845164

Certificate GIA 6127845164

Diamond specifications and retailer prices

From £508 GBP
$680 USD
As of October 28, 2026
Save £530 GBP (51%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £1,038 GBP at MOH London · As of November 1, 2026
View at MOH London

About this 0.45ct natural radiant diamond

This 0.45ct natural radiant sits in the sub-half-carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6127845164. Listed at 8 retailers as of October 28, 2026, with prices from £508 to £1,038, a £530 spread on the same certified stone. MOH London lists it at £1,038. 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

0.45
Carat
I
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishGood
SymmetryGood
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6127845164
Dimensions4.68 × 3.71 × 2.89 mm
L/W Ratio1.26
Top View
4.68 mm3.71 mm0.45 ctI / SI1
OriginNatural
CutVery Good
PolishGood
SymmetryGood
FluorescenceFaint
CertificateGIA 6127845164
Side View
Table 67.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 77.9%

Caratlytics Score

How it works →
B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 28
Current: £1,038 GBP|Low: £508 GBP|High: £1,050 GBP|Avg: £790 GBP|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 1, 2026
Retailer 6£508 GBP
Retailer 5£513 GBP
Retailer 2£680 GBP
Retailer 3£803 GBP
Retailer 7£852 GBP
Retailer 4£878 GBP
MOH London£1,038 GBP

44 data points across 7 retailers

8 retailers£508 GBP to £1,038 GBP

B
Cheapest Retailer
-
£508 GBP
$680 USD
B
Retailer 2
-
£513 GBP
$688 USD
View
B
Retailer 3
-
£594 GBP
$796 USD
View
C
Retailer 4
-
£680 GBP
View
C
Retailer 5
-
£803 GBP
€1,025 EUR
View
Retailer 6
-
£852 GBP
A$1,756 AUD
View
Price last confirmed 29 days ago
C
Retailer 7
-
£878 GBP
ZAR 19,015 ZAR
View
Most Expensive
C
MOH London
3C39F595D · Nov 1
£1,038 GBP
View
7 more retailers have this diamond
Prices start from £508 GBPSave up to £530 GBP

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.

B
0.45ct Radiant
£508 GBP