Round|Natural|GIA

0.45ct D SI1 Round Natural Diamond

EX • D/SI1 • GIA 2516565611

Certificate GIA 2516565611

Diamond specifications and retailer prices

From £437 GBP
As of November 6, 2026
Save £1,220 GBP (74%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £1,657 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 2516565611. Listed at 16 retailers as of November 4, 2026, with prices from £437 to £1,657, a £1,220 spread on the same certified stone. NZ Jewellers lists it at £1,657. 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
FluorescenceNone
Crown angle35.5°
Pavilion angle41.4°
OriginNatural
Grading LabGIA
CertificateGIA 2516565611
Dimensions4.89 × 4.86 × 3.05 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Top View
4.89 mm4.86 mm0.45 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2516565611
Side View
Table 58.0%Crown 35.5°Girdle: MED-STKPavilion 41.4°Culet: NoneDepth 62.7%

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: £1,657 GBP|Low: £428 GBP|High: £1,657 GBP|Avg: £792 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 6, 2026
Retailer 11£437 GBP
Retailer 4£540 GBP
Retailer 14£561 GBP
Retailer 2£623 GBP
Retailer 5£623 GBP
Retailer 6£626 GBP
Retailer 12£672 GBP
Retailer 8£679 GBP
Retailer 7£704 GBP
Retailer 13£794 GBP
Retailer 9£819 GBP
Retailer 3£1,131 GBP
Retailer 10£1,219 GBP
NZ Jewellers£1,657 GBP

41 data points across 14 retailers

16 retailers£437 GBP to £1,657 GBP

A
Cheapest Retailer
-
£437 GBP
Retailer 2
-
£511 GBP
View
Price last confirmed 82 days ago
B+
Retailer 3
-
£540 GBP
View
B+
Retailer 4
-
£561 GBP
View
B+
Retailer 5
-
£623 GBP
View
B+
Retailer 6
-
£623 GBP
View
B+
Retailer 7
-
£626 GBP
View
B
Retailer 8
-
£672 GBP
View
B+
Retailer 9
-
£679 GBP
View
B+
Retailer 10
-
£704 GBP
View
Retailer 11
-
£794 GBP
View
Price last confirmed 33 days ago
B+
Retailer 12
-
£819 GBP
View
B
Retailer 13
-
£1,018 GBP
View
B
Retailer 14
-
£1,131 GBP
View
B
Retailer 15
-
£1,219 GBP
View
Most Expensive
B
NZ Jewellers
18cc1ee0-904f-40e3-bef9-de8894133523 · Nov 4
£1,657 GBP
$2,230 USD
View
15 more retailers have this diamond
Prices start from £437 GBPSave up to £1,220 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
£437 GBP