Round|Natural|GIA

0.45ct J SI2 Round Natural Diamond

EX • J/SI2 • GIA 6361287107

Certificate GIA 6361287107

Diamond specifications and retailer prices

From £215 GBP
As of November 4, 2026
Save £697 GBP (76%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £932 GBP at NZ Jewellers · As of September 15, 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 SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6361287107. Listed at 15 retailers as of November 4, 2026, with a 323% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

0.45
Carat
J
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 6361287107
Dimensions4.88 × 4.85 × 3.06 mm
L/W Ratio1.01
Top View
4.88 mm4.85 mm0.45 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6361287107
Side View
Table 58.0%Crown 35.5°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 62.9%

Caratlytics Score

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

Price History

Last verified: Nov 4
Current: £912 GBP|Low: £215 GBP|High: £912 GBP|Avg: £354 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
November 5, 2026
Retailer 3£215 GBP
Retailer 14£227 GBP
Retailer 11£232 GBP
Retailer 10£241 GBP
Retailer 5£260 GBP
Retailer 8£281 GBP
Retailer 4£291 GBP
Retailer 13£306 GBP
Retailer 12£325 GBP
Retailer 7£358 GBP
Retailer 6£370 GBP
Retailer 2£443 GBP
Retailer 9£553 GBP
NZ Jewellers£912 GBP

26 data points across 14 retailers

15 retailers£215 GBP to £912 GBP

A
Cheapest Retailer
-
£215 GBP
Retailer 2
-
£220 GBP
View
Price last confirmed 51 days ago
Retailer 3
-
£227 GBP
View
Price last confirmed 26 days ago
Retailer 4
-
£232 GBP
View
Price last confirmed 8 days ago
A
Retailer 5
-
£241 GBP
View
A
Retailer 6
-
£281 GBP
View
A
Retailer 7
-
£291 GBP
View
Retailer 8
-
£296 GBP
View
Price last confirmed 53 days ago
A
Retailer 9
-
£306 GBP
View
B+
Retailer 10
-
£325 GBP
View
B+
Retailer 11
-
£358 GBP
View
B+
Retailer 12
-
£443 GBP
View
Retailer 13
-
£553 GBP
View
Price last confirmed 8 days ago
B
Retailer 14
-
£912 GBP
View
Most Expensive
NZ Jewellers
2e5a8446-3ba5-42fd-a424-8d63812379a4 · Sep 15
£932 GBP
$1,254 USD
View
Price last confirmed 52 days ago
14 more retailers have this diamond
Prices start from £215 GBPSave up to £697 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
£215 GBP