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Round|Natural|GIA

1.40ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 6561485063

Certificate GIA 6561485063

Diamond specifications and retailer prices

From £2,224 GBP
As of November 6, 2026
Save £1,902 GBP (46%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £4,126 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.4ct natural round diamond

This 1.4ct natural round sits in the one-and-a-quarter to one-and-a-half carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6561485063. Listed at 12 retailers as of November 5, 2026, with prices from £2,224 to £4,126, a £1,902 spread on the same certified stone. NZ Jewellers lists it at £4,126. 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

1.40
Carat
K
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6561485063
Dimensions7.09 × 7.14 × 4.45 mm
L/W Ratio1.01
Top View
7.09 mm7.14 mm1.40 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6561485063
Side View
Table 56.0%CrownGirdlePavilionCulet: NoneDepth 62.5%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: £4,126 GBP|Low: £2,224 GBP|High: £4,488 GBP|Avg: £2,917 GBP|-8.1%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 4£2,224 GBP
Retailer 2£2,266 GBP
Retailer 5£2,435 GBP
Retailer 12£2,459 GBP
Retailer 3£2,474 GBP
Retailer 11£2,612 GBP
Retailer 7£2,717 GBP
Retailer 6£2,751 GBP
Retailer 8£2,890 GBP
Retailer 10£3,323 GBP
Retailer 9£3,950 GBP
NZ Jewellers£4,126 GBP

28 data points across 12 retailers

12 retailers£2,224 GBP to £4,126 GBP

B+
Cheapest Retailer
-
£2,224 GBP
B+
Retailer 2
-
£2,266 GBP
View
B+
Retailer 3
-
£2,435 GBP
View
B+
Retailer 4
-
£2,459 GBP
View
B+
Retailer 5
-
£2,474 GBP
View
B
Retailer 6
-
£2,612 GBP
View
B+
Retailer 7
-
£2,717 GBP
View
B
Retailer 8
-
£2,751 GBP
View
B+
Retailer 9
-
£2,890 GBP
View
B
Retailer 10
-
£3,323 GBP
View
B
Retailer 11
-
£3,950 GBP
View
Most Expensive
B
NZ Jewellers
898a5315-a296-4525-8f53-db063351308f · Nov 5
£4,126 GBP
$5,553 USD
View
11 more retailers have this diamond
Prices start from £2,224 GBPSave up to £1,902 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.

B+
1.40ct Round
£2,224 GBP