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Round|Natural|GIA

1.40ct E SI2 Round Natural Diamond

EX • E/SI2 • GIA 6512044653

Shape and cutting style on the report: Round brilliant

Certificate GIA 6512044653

Diamond specifications and retailer prices

From £4,017 GBP
As of November 4, 2026
Save £4,488 GBP (53%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: £8,505 GBP at NZ Jewellers · As of October 20, 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 E colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6512044653. Listed at 23 retailers as of November 4, 2026, with a 112% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
E
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 6512044653
Dimensions7.15 × 7.10 × 4.44 mm
L/W Ratio1.01
Star length50%
Lower girdle75%
Top View
7.15 mm7.10 mm1.40 ctE / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6512044653
Side View
Table 58.0%Crown 36°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 62.3%

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 4
Current: £4,797 GBP|Low: £4,252 GBP|High: £7,581 GBP|Avg: £5,572 GBP|-1.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 7£4,252 GBP
Retailer 2£4,460 GBP
Retailer 6£4,607 GBP
Retailer 1£4,797 GBP
Retailer 3£5,513 GBP
Retailer 5£7,322 GBP
Retailer 4£7,471 GBP

36 data points across 7 retailers

23 retailers£4,017 GBP to £8,505 GBP

A
Cheapest Retailer
-
£4,017 GBP
A
Retailer 2
-
£4,103 GBP
View
B+
Retailer 3
-
£4,252 GBP
View
Final sale: no returns
B+
Retailer 4
-
£4,460 GBP
View
B+
Retailer 5
-
£4,540 GBP
View
Retailer 6
-
£4,607 GBP
View
Price last confirmed 8 days ago
Retailer 7
-
£4,607 GBP
View
Price last confirmed 29 days ago
Retailer 8
-
£4,607 GBP
View
Price last confirmed 38 days ago
Retailer 9
-
£4,607 GBP
View
Price last confirmed 15 days ago
B+
Retailer 10
-
£4,797 GBP
View
B+
Retailer 11
-
£4,926 GBP
View
B+
Retailer 12
-
£4,926 GBP
View
B+
Retailer 13
-
£5,097 GBP
View
Retailer 14
-
£5,315 GBP
View
Price last confirmed 28 days ago
Retailer 15
-
£5,315 GBP
View
Price last confirmed 16 days ago
B+
Retailer 16
-
£5,315 GBP
View
B+
Retailer 17
-
£5,513 GBP
View
Retailer 18
-
£5,605 GBP
View
Price last confirmed 22 days ago
Retailer 19
-
£7,322 GBP
View
Price last confirmed 9 days ago
B
Retailer 20
-
£7,471 GBP
View
B
Retailer 21
-
£8,505 GBP
View
Retailer 22
-
£8,505 GBP
View
Price last confirmed 39 days ago
Most Expensive
NZ Jewellers
749ecdc6-131d-45a6-9b48-f41e9b20c43d · Oct 20
£8,505 GBP
$11,447 USD
View
Price last confirmed 16 days ago
22 more retailers have this diamond
Prices start from £4,017 GBPSave up to £4,488 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
1.40ct Round
£4,017 GBP