CaratHunter
Plans
Round|Natural|GIA

0.45ct J SI2 Round Natural Diamond

EX • J/SI2 • GIA 1503101550

Certificate GIA 1503101550

Diamond specifications and retailer prices

From £175 GBP
As of November 6, 2026
Save £779 GBP (82%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £955 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 SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1503101550. Listed at 15 retailers as of November 4, 2026, with prices from £175 to £955, a £779 spread on the same certified stone. NZ Jewellers lists it at £955. 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
PolishVery Good
SymmetryExcellent
FluorescenceMedium
Crown angle35°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 1503101550
Dimensions4.91 × 4.94 × 3.04 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Girdle conditionFaceted
Key to symbols
Crystal
Top View
4.91 mm4.94 mm0.45 ctJ / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceMedium
CertificateGIA 1503101550
Side View
Table 60.0%Crown 35°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 61.6%

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 6
Current: £175 GBP|Low: £175 GBP|High: £582 GBP|Avg: £357 GBP|-3.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 6, 2026
Retailer 1£175 GBP
Retailer 6£295 GBP
Retailer 2£317 GBP
Retailer 3£334 GBP
Retailer 4£409 GBP
Retailer 5£575 GBP

41 data points across 6 retailers

15 retailers£175 GBP to £955 GBP

A
Cheapest Retailer
-
£175 GBP
A
Retailer 2
-
£249 GBP
View
Retailer 3
-
£268 GBP
View
Price last confirmed 8 days ago
B+
Retailer 4
-
£273 GBP
View
B+
Retailer 5
-
£277 GBP
View
B+
Retailer 6
-
£278 GBP
View
B+
Retailer 7
-
£295 GBP
View
B+
Retailer 8
-
£317 GBP
View
B+
Retailer 9
-
£334 GBP
View
B+
Retailer 10
-
£335 GBP
View
B+
Retailer 11
-
£366 GBP
View
B+
Retailer 12
-
£393 GBP
View
B+
Retailer 13
-
£409 GBP
View
B
Retailer 14
-
£575 GBP
View
Most Expensive
C
NZ Jewellers
40551fbb-139f-461a-9534-dc504a8d4965 · Nov 4
£955 GBP
$1,285 USD
View
14 more retailers have this diamond
Prices start from £175 GBPSave up to £779 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
£175 GBP