Round|Natural|GIA

0.45ct J SI1 Round Natural Diamond

VG • J/SI1 • GIA 6243075892

Certificate GIA 6243075892

Diamond specifications and retailer prices

From £202 GBP
As of November 4, 2026
Save £791 GBP (80%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £993 GBP at NZ Jewellers · As of November 4, 2026
View at NZ Jewellers

About this 0.45ct natural round diamond

This 0.45ct natural round sits in the sub-half-carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by GIA 6243075892. Listed at 19 retailers as of November 4, 2026, with prices from £202 to £993, a £791 spread on the same certified stone. NZ Jewellers lists it at £993. 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
J
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
Crown angle38°
Pavilion angle40.4°
OriginNatural
Grading LabGIA
CertificateGIA 6243075892
Dimensions4.81 × 4.74 × 3.10 mm
L/W Ratio1.01
Culet sizeNone
Key to symbols
Crystal, Feather
Top View
4.81 mm4.74 mm0.45 ctJ / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6243075892
Side View
Table 56.0%Crown 38°Girdle: STK-THKPavilion 40.4°Culet: NoneDepth 64.9%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: £993 GBP|Low: £202 GBP|High: £993 GBP|Avg: £389 GBP
NZ Jewellers
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
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Retailer 17
Retailer 18
November 6, 2026
Retailer 8£202 GBP
Retailer 9£234 GBP
Retailer 7£259 GBP
Retailer 15£259 GBP
Retailer 12£273 GBP
Retailer 3£279 GBP
Retailer 2£289 GBP
Retailer 13£331 GBP
Retailer 14£344 GBP
Retailer 6£349 GBP
Retailer 4£356 GBP
Retailer 16£403 GBP
Retailer 10£415 GBP
Retailer 5£424 GBP
Retailer 17£432 GBP
Retailer 11£522 GBP
Retailer 18£602 GBP
NZ Jewellers£993 GBP

39 data points across 18 retailers

19 retailers£202 GBP to £993 GBP

A
Cheapest Retailer
-
£202 GBP
A
Retailer 2
-
£234 GBP
View
B+
Retailer 3
-
£259 GBP
View
B+
Retailer 4
-
£259 GBP
View
B+
Retailer 5
-
£273 GBP
View
Retailer 6
-
£279 GBP
View
Price last confirmed 8 days ago
B+
Retailer 7
-
£289 GBP
View
B+
Retailer 8
-
£331 GBP
View
B+
Retailer 9
-
£344 GBP
View
B+
Retailer 10
-
£349 GBP
View
B+
Retailer 11
-
£356 GBP
View
B+
Retailer 12
-
£374 GBP
View
B+
Retailer 13
-
£403 GBP
View
Retailer 14
-
£415 GBP
View
Price last confirmed 34 days ago
B
Retailer 15
-
£424 GBP
View
B
Retailer 16
-
£432 GBP
View
B
Retailer 17
-
£522 GBP
View
Retailer 18
-
£602 GBP
View
Price last confirmed 8 days ago
Most Expensive
C
NZ Jewellers
0556c36a-32ac-4dcc-a3de-a59812f093b0 · Nov 4
£993 GBP
$1,337 USD
View
18 more retailers have this diamond
Prices start from £202 GBPSave up to £791 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.

A
0.45ct Round
£202 GBP