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1.40ct D SI2 Round Natural Diamond

EX • D/SI2 • GIA 2506126317

Certificate GIA 2506126317

Diamond specifications and retailer prices

From £3,582 GBP
HK$37,500 HKD
As of October 30, 2026
Save £3,632 GBP (50%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £7,214 GBP at MOH London · As of October 29, 2026
View at MOH London

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 2506126317. Listed at 6 retailers as of October 29, 2026, with prices from £3,582 to £7,214, a £3,632 spread on the same certified stone. MOH London lists it at £7,214. 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
Crown angle36.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 2506126317
Dimensions7.11 × 7.06 × 4.45 mm
L/W Ratio1.01
Star length50%
Lower girdle75%
Top View
7.11 mm7.06 mm1.40 ctD / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2506126317
Side View
Table 56.0%Crown 36.5°Girdle: STK-STKPavilion 40.8°Culet: 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: £7,214 GBP|Low: £3,582 GBP|High: £7,261 GBP|Avg: £4,889 GBP|+0.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 30, 2026
Retailer 6£3,582 GBP
Retailer 4£4,228 GBP
Retailer 5£4,241 GBP
Retailer 2£4,640 GBP
Retailer 3£5,322 GBP
MOH London£7,214 GBP

41 data points across 6 retailers

6 retailers£3,582 GBP to £7,214 GBP

A
Cheapest Retailer
-
£3,582 GBP
HK$37,500 HKD
B+
Retailer 2
-
£4,228 GBP
$5,665 USD
View
B+
Retailer 3
-
£4,241 GBP
$5,683 USD
View
B+
Retailer 4
-
£4,640 GBP
View
B+
Retailer 5
-
£5,322 GBP
€6,791 EUR
View
Most Expensive
B
MOH London
484BB4A7D · Oct 29
£7,214 GBP
View
5 more retailers have this diamond
Prices start from £3,582 GBPSave up to £3,632 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
£3,582 GBP