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Heart|Natural|GIA

1.40ct I SI1 Heart Natural Diamond

VG • I/SI1 • GIA 7558001405

Certificate GIA 7558001405

Diamond specifications and retailer prices

From £2,366 GBP
As of November 5, 2026
Save £2,335 GBP (50%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £4,999 GBP at NZ Jewellers · As of September 28, 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 I colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 7558001405. Listed at 20 retailers as of November 4, 2026, with a 99% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.40
Carat
I
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36.7°
Pavilion angle40.9°
OriginNatural
Grading LabGIA
CertificateGIA 7558001405
Dimensions7.72 × 6.99 × 4.56 mm
L/W Ratio1.10
Culet sizeNone
Key to symbols
Twinning Wisp, Feather
Top View
7.72 mm6.99 mm1.40 ctI / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 7558001405
Side View
Table 59.0%Crown 36.7°Girdle: MED-THKPavilion 40.9°Culet: NoneDepth 59.1%

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 5
Current: £4,911 GBP|Low: £2,353 GBP|High: £4,999 GBP|Avg: £3,140 GBP|-1.8%
NZ Jewellers
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
November 7, 2026
Retailer 11£2,366 GBP
Retailer 5£2,502 GBP
Retailer 14£2,530 GBP
Retailer 16£2,601 GBP
Retailer 15£2,701 GBP
Retailer 4£2,819 GBP
Retailer 7£2,819 GBP
Retailer 2£2,917 GBP
Retailer 13£2,927 GBP
Retailer 9£2,928 GBP
Retailer 6£2,966 GBP
Retailer 3£3,004 GBP
Retailer 17£3,019 GBP
Retailer 8£3,252 GBP
Retailer 10£3,440 GBP
Retailer 12£4,701 GBP
NZ Jewellers£4,911 GBP

46 data points across 17 retailers

20 retailers£2,366 GBP to £4,701 GBP

A
Cheapest Retailer
-
£2,366 GBP
B+
Retailer 2
-
£2,502 GBP
View
B+
Retailer 3
-
£2,530 GBP
View
B+
Retailer 4
-
£2,601 GBP
View
Final sale: no returns
B+
Retailer 5
-
£2,701 GBP
View
Retailer 6
-
£2,819 GBP
View
Price last confirmed 12 days ago
Retailer 7
-
£2,819 GBP
View
Price last confirmed 13 days ago
Retailer 8
-
£2,870 GBP
View
Price last confirmed 40 days ago
B+
Retailer 9
-
£2,917 GBP
View
Retailer 10
-
£2,927 GBP
View
Price last confirmed 13 days ago
B+
Retailer 11
-
£2,928 GBP
View
B
Retailer 12
-
£2,966 GBP
View
B
Retailer 13
-
£3,004 GBP
View
Retailer 14
-
£3,019 GBP
View
Price last confirmed 30 days ago
Retailer 15
-
£3,252 GBP
View
Price last confirmed 11 days ago
Retailer 16
-
£3,311 GBP
View
Price last confirmed 39 days ago
B
Retailer 17
-
£3,440 GBP
View
B
Retailer 18
-
£4,701 GBP
View
Retailer 19
-
£4,911 GBP
View
Price last confirmed 11 days ago
Most Expensive
NZ Jewellers
7941e8b7-e584-4ce9-a80b-8fbd4869c419 · Sep 28
£4,999 GBP
$6,691 USD
View
Price last confirmed 40 days ago
19 more retailers have this diamond
Prices start from £2,366 GBPSave up to £2,335 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
£2,366 GBP