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0.45ct D SI1 Round Natural Diamond

EX • D/SI1 • GIA 6502223906

Certificate GIA 6502223906

Diamond specifications and retailer prices

From £313 GBP
As of November 6, 2026
Save £981 GBP (76%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £1,294 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 D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6502223906. Listed at 19 retailers as of November 4, 2026, with prices from £313 to £1,294, a £981 spread on the same certified stone. NZ Jewellers lists it at £1,294. 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
D
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 6502223906
Dimensions4.89 × 4.92 × 3.08 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Top View
4.89 mm4.92 mm0.45 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6502223906
Side View
Table 56.0%Crown 36°Girdle: MED-MEDPavilion 41°Culet: NoneDepth 62.8%

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 6
Current: £1,294 GBP|Low: £302 GBP|High: £1,307 GBP|Avg: £538 GBP|+4.3%
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
Retailer 16
Retailer 17
November 6, 2026
Retailer 2£313 GBP
Retailer 9£361 GBP
Retailer 17£381 GBP
Retailer 15£412 GBP
Retailer 12£417 GBP
Retailer 3£420 GBP
Retailer 4£444 GBP
Retailer 7£449 GBP
Retailer 6£476 GBP
Retailer 13£509 GBP
Retailer 11£510 GBP
Retailer 8£516 GBP
Retailer 14£557 GBP
Retailer 10£576 GBP
Retailer 16£639 GBP
Retailer 5£951 GBP
NZ Jewellers£1,294 GBP

24 data points across 17 retailers

19 retailers£313 GBP to £1,294 GBP

A
Cheapest Retailer
-
£313 GBP
A
Retailer 2
-
£361 GBP
View
A
Retailer 3
-
£381 GBP
View
Final sale: no returns
A
Retailer 4
-
£412 GBP
View
A
Retailer 5
-
£417 GBP
View
A
Retailer 6
-
£420 GBP
View
A
Retailer 7
-
£444 GBP
View
Retailer 8
-
£449 GBP
View
Price last confirmed 8 days ago
A
Retailer 9
-
£476 GBP
View
B+
Retailer 10
-
£509 GBP
View
B+
Retailer 11
-
£510 GBP
View
A
Retailer 12
-
£516 GBP
View
B+
Retailer 13
-
£557 GBP
View
B+
Retailer 14
-
£576 GBP
View
Retailer 15
-
£626 GBP
View
Price last confirmed 33 days ago
B+
Retailer 16
-
£639 GBP
View
B
Retailer 17
-
£951 GBP
View
B
Retailer 18
-
£975 GBP
View
Most Expensive
B
NZ Jewellers
83de6d51-aecb-469d-86d7-d4206abe0ea4 · Nov 4
£1,294 GBP
$1,741 USD
View
18 more retailers have this diamond
Prices start from £313 GBPSave up to £981 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
£313 GBP