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Round|Natural|GIA

1.40ct D SI2 Round Natural Diamond

EX • D/SI2 • GIA 7506436526

Certificate GIA 7506436526

Diamond specifications and retailer prices

From £3,105 GBP
$4,161 USD
As of October 30, 2026
Save £5,587 GBP (64%) vs most expensive(unlock to see where)
29 retailers carry this diamond
Most expensive: £8,693 GBP at Diamond Quarter · As of October 29, 2026
View at Diamond Quarter

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 7506436526. Listed at 29 retailers as of October 29, 2026, with prices from £3,105 to £8,693, a £5,587 spread on the same certified stone. Diamond Quarter lists it at £8,693. 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 angle35°
Pavilion angle41.4°
OriginNatural
Grading LabGIA
CertificateGIA 7506436526
Dimensions7.15 × 7.12 × 4.48 mm
L/W Ratio1.00
Star length50%
Lower girdle80%
Key to symbols
Crystal, Feather, Cloud, Needle, Indented Natural
Top View
7.15 mm7.12 mm1.40 ctD / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7506436526
Side View
Table 57.0%Crown 35°Girdle: MED-STKPavilion 41.4°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: £3,666 GBP|Low: £2,822 GBP|High: £6,770 GBP|Avg: £4,114 GBP|-4.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
October 30, 2026
Retailer 16£3,105 GBP
Retailer 19£3,112 GBP
Retailer 3£3,136 GBP
Retailer 6£3,225 GBP
Retailer 18£3,226 GBP
Retailer 17£3,265 GBP
Retailer 5£3,414 GBP
Retailer 1£3,666 GBP
Retailer 14£3,762 GBP
Retailer 7£3,864 GBP
Retailer 11£3,935 GBP
Retailer 12£3,957 GBP
Retailer 8£4,142 GBP
Retailer 10£4,142 GBP
Retailer 2£4,284 GBP
Retailer 4£4,474 GBP
Retailer 13£4,499 GBP
Retailer 9£5,912 GBP
Retailer 15£6,538 GBP

30 data points across 19 retailers

29 retailers£3,105 GBP to £8,693 GBP

A
Cheapest Retailer
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£3,105 GBP
$4,161 USD
A
Retailer 2
-
£3,112 GBP
$4,170 USD
View
A
Retailer 3
-
£3,136 GBP
$4,202 USD
View
A
Retailer 4
-
£3,225 GBP
$4,321 USD
View
A
Retailer 5
-
£3,226 GBP
$4,322 USD
View
A
Retailer 6
-
£3,265 GBP
$4,375 USD
View
A
Retailer 7
-
£3,414 GBP
$4,574 USD
View
Final sale: no returns
A
Retailer 8
-
£3,666 GBP
$4,911 USD
View
A
Retailer 9
-
£3,762 GBP
$5,041 USD
View
A
Retailer 10
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£3,864 GBP
$5,177 USD
View
Retailer 11
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£3,883 GBP
$5,203 USD
View
Price last confirmed 18 days ago
Retailer 12
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£3,883 GBP
$5,203 USD
View
Price last confirmed 22 days ago
Retailer 13
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£3,883 GBP
$5,203 USD
View
Price last confirmed 31 days ago
Retailer 14
-
£3,911 GBP
$5,240 USD
View
Price last confirmed 51 days ago
Retailer 15
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£3,935 GBP
$5,273 USD
View
Price last confirmed 7 days ago
A
Retailer 16
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£3,957 GBP
View
A
Retailer 17
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£4,142 GBP
$5,550 USD
View
A
Retailer 18
-
£4,142 GBP
$5,550 USD
View
A
Retailer 19
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£4,284 GBP
$5,740 USD
View
Retailer 20
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£4,359 GBP
$5,840 USD
View
Price last confirmed 53 days ago
B+
Retailer 21
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£4,474 GBP
View
Retailer 22
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£4,481 GBP
$6,004 USD
View
Price last confirmed 21 days ago
B+
Retailer 23
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£4,499 GBP
€5,741 EUR
View
B+
Retailer 24
-
£5,912 GBP
$7,922 USD
View
B
Retailer 25
-
£6,538 GBP
View
Retailer 26
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£6,974 GBP
$9,344 USD
View
Price last confirmed 59 days ago
Retailer 27
-
£7,169 GBP
$9,606 USD
View
Price last confirmed 27 days ago
B
Retailer 28
-
£8,189 GBP
View
Most Expensive
B
Diamond Quarter
1.4SI2D7526DC67N · Oct 29
£8,693 GBP
View
28 more retailers have this diamond
Prices start from £3,105 GBPSave up to £5,587 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
£3,105 GBP