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Heart|Natural|GIA

1.40ct D SI1 Heart Natural Diamond

EX • D/SI1 • GIA 6552734884

Certificate GIA 6552734884

Diamond specifications and retailer prices

From £2,973 GBP
As of November 6, 2026
Save £2,143 GBP (42%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £5,612 GBP at NZ Jewellers · As of September 30, 2026
View at NZ Jewellers

About this 1.4ct natural heart diamond

This 1.4ct natural heart sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6552734884. Listed at 15 retailers as of November 4, 2026, with a 72% 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
D
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 6552734884
Dimensions7.65 × 6.54 × 4.56 mm
L/W Ratio1.17
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Needle
Top View
7.65 mm6.54 mm1.40 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceMedium
CertificateGIA 6552734884
Side View
Table 61.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 59.6%

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 6
Current: £3,625 GBP|Low: £2,666 GBP|High: £5,192 GBP|Avg: £3,553 GBP|+2.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 5£2,674 GBP
Retailer 7£2,973 GBP
Retailer 9£3,221 GBP
Retailer 2£3,263 GBP
Retailer 6£3,401 GBP
Retailer 8£3,453 GBP
Retailer 1£3,625 GBP
Retailer 3£3,931 GBP
Retailer 4£5,115 GBP

38 data points across 9 retailers

15 retailers£2,973 GBP to £5,115 GBP

Retailer 1
-
£2,674 GBP
Price last confirmed 11 days ago
A
Retailer 2
-
£2,973 GBP
View
Final sale: no returns
A
Retailer 3
-
£3,074 GBP
View
Retailer 4
-
£3,221 GBP
View
Price last confirmed 36 days ago
Retailer 5
-
£3,221 GBP
View
Price last confirmed 36 days ago
A
Retailer 6
-
£3,263 GBP
View
B+
Retailer 7
-
£3,401 GBP
View
Retailer 8
-
£3,453 GBP
View
Price last confirmed 33 days ago
Retailer 9
-
£3,467 GBP
View
Price last confirmed 33 days ago
B+
Retailer 10
-
£3,625 GBP
View
Retailer 11
-
£3,717 GBP
View
Price last confirmed 38 days ago
Retailer 12
-
£3,717 GBP
View
Price last confirmed 66 days ago
B+
Retailer 13
-
£3,931 GBP
View
B
Retailer 14
-
£5,115 GBP
View
Most Expensive
NZ Jewellers
ab412556-4873-4471-ba64-879f4ac1dbc9 · Sep 30
£5,612 GBP
$7,511 USD
View
Price last confirmed 37 days ago
14 more retailers have this diamond
Prices start from £2,973 GBPSave up to £2,143 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 Heart
£2,973 GBP