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Round|Natural|GIA

1.45ct E SI2 Round Natural Diamond

EX • E/SI2 • GIA 6545380193

Certificate GIA 6545380193

Diamond specifications and retailer prices

From £2,583 GBP
As of November 5, 2026
Save £3,627 GBP (58%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £6,210 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.45ct natural round diamond

This 1.45ct natural round sits in the one-and-a-quarter to one-and-a-half carat band, graded E colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6545380193. Listed at 16 retailers as of November 5, 2026, with prices from £2,583 to £6,210, a £3,627 spread on the same certified stone. NZ Jewellers lists it at £6,210. 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

1.45
Carat
E
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle35.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 6545380193
Dimensions7.22 × 7.25 × 4.50 mm
L/W Ratio1.00
Top View
7.22 mm7.25 mm1.45 ctE / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6545380193
Side View
Table 57.0%Crown 35.5°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 62.2%

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 5
Current: £6,210 GBP|Low: £2,583 GBP|High: £6,210 GBP|Avg: £3,764 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£2,583 GBP
Retailer 9£2,748 GBP
Retailer 8£3,029 GBP
Retailer 5£3,109 GBP
Retailer 6£3,263 GBP
Retailer 12£3,487 GBP
Retailer 14£3,559 GBP
Retailer 3£3,564 GBP
Retailer 4£3,564 GBP
Retailer 2£3,565 GBP
Retailer 7£3,668 GBP
Retailer 10£3,985 GBP
Retailer 13£5,662 GBP
NZ Jewellers£6,210 GBP

28 data points across 14 retailers

16 retailers£2,583 GBP to £6,210 GBP

A
Cheapest Retailer
-
£2,583 GBP
A
Retailer 2
-
£2,748 GBP
View
Final sale: no returns
A
Retailer 3
-
£3,029 GBP
View
A
Retailer 4
-
£3,109 GBP
View
A
Retailer 5
-
£3,263 GBP
View
A
Retailer 6
-
£3,487 GBP
View
A
Retailer 7
-
£3,559 GBP
View
A
Retailer 8
-
£3,564 GBP
View
A
Retailer 9
-
£3,564 GBP
View
Retailer 10
-
£3,564 GBP
View
Price last confirmed 8 days ago
A
Retailer 11
-
£3,565 GBP
View
A
Retailer 12
-
£3,668 GBP
View
A
Retailer 13
-
£3,751 GBP
View
A
Retailer 14
-
£3,985 GBP
View
B+
Retailer 15
-
£5,662 GBP
View
Most Expensive
B
NZ Jewellers
71afce18-8478-44f3-95ed-a6e1ce9ff6ec · Nov 5
£6,210 GBP
$8,358 USD
View
15 more retailers have this diamond
Prices start from £2,583 GBPSave up to £3,627 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
1.45ct Round
£2,583 GBP