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Round|Natural|GIA

1.40ct D SI2 Round Natural Diamond

EX • D/SI2

Diamond specifications and retailer prices

From £3,565 GBP
CA$6,635 CAD
As of October 30, 2026
Save £3,264 GBP (48%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £6,829 GBP at NZ Jewellers · As of October 30, 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 D colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA. Listed at 10 retailers as of October 30, 2026, with prices from £3,565 to £6,829, a £3,264 spread on the same certified stone. NZ Jewellers lists it at £6,829. 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
D
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
Dimensions7.12 × 7.15 × 4.48 mm
L/W Ratio1.00
Top View
7.12 mm7.15 mm1.40 ctD / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA
Side View
Table 57.0%CrownGirdle: MediumPavilionCulet: NoneDepth 62.8%

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: Oct 30
Current: £6,829 GBP|Low: £3,565 GBP|High: £7,219 GBP|Avg: £4,321 GBP|-5.4%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 30, 2026
Retailer 2£3,565 GBP
Retailer 4£3,699 GBP
Retailer 5£3,699 GBP
Retailer 6£3,699 GBP
Retailer 7£3,730 GBP
Retailer 9£3,892 GBP
Retailer 3£3,940 GBP
Retailer 8£4,144 GBP
Retailer 10£4,268 GBP
NZ Jewellers£6,829 GBP

19 data points across 10 retailers

10 retailers£3,565 GBP to £6,829 GBP

A
Cheapest Retailer
-
£3,565 GBP
CA$6,635 CAD
A
Retailer 2
-
£3,699 GBP
$4,956 USD
View
A
Retailer 3
-
£3,699 GBP
$4,956 USD
View
A
Retailer 4
-
£3,699 GBP
$4,956 USD
View
A
Retailer 5
-
£3,730 GBP
$4,998 USD
View
A
Retailer 6
-
£3,892 GBP
$5,215 USD
View
A
Retailer 7
-
£3,940 GBP
View
B+
Retailer 8
-
£4,144 GBP
$5,553 USD
View
B+
Retailer 9
-
£4,268 GBP
$5,719 USD
View
Most Expensive
B
NZ Jewellers
d81915fb-9f7f-4cb7-b246-b38142635962 · Oct 30
£6,829 GBP
$9,150 USD
View
9 more retailers have this diamond
Prices start from £3,565 GBPSave up to £3,264 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
£3,565 GBP