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1.43ct L SI2 Round Natural Diamond

EX • L/SI2 • GIA 6455144078

Shape and cutting style on the report: Round brilliant

Certificate GIA 6455144078

Diamond specifications and retailer prices

From £1,366 GBP
As of November 2, 2026
Save £2,005 GBP (59%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £3,371 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.43ct natural round diamond

This 1.43ct natural round sits in the one-and-a-quarter to one-and-a-half carat band, graded L colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6455144078. Listed at 4 retailers as of November 2, 2026, with prices from £1,366 to £3,371, a £2,005 spread on the same certified stone. NZ Jewellers lists it at £3,371. 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

1.43
Carat
L
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle31.5°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 6455144078
Dimensions7.30 × 7.27 × 4.41 mm
L/W Ratio1.00
Star length45%
Lower girdle75%
Top View
7.30 mm7.27 mm1.43 ctL / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6455144078
Side View
Table 57.0%Crown 31.5°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 60.6%

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 2
Current: £3,371 GBP|Low: £1,354 GBP|High: £3,371 GBP|Avg: £2,026 GBP|+1.0%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
November 5, 2026
Retailer 3£1,366 GBP
Retailer 4£1,519 GBP
Retailer 2£1,818 GBP
NZ Jewellers£3,371 GBP

41 data points across 4 retailers

4 retailers£1,366 GBP to £3,371 GBP

A
Cheapest Retailer
-
£1,366 GBP
B+
Retailer 2
-
£1,519 GBP
View
B+
Retailer 3
-
£1,818 GBP
View
Most Expensive
C
NZ Jewellers
5bc08999-c48c-469a-81a5-b546a8afecd7 · Nov 5
£3,371 GBP
$4,537 USD
View
3 more retailers have this diamond
Prices start from £1,366 GBPSave up to £2,005 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
1.43ct Round
£1,366 GBP