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Heart|Natural|GIA

1.51ct I SI1 Heart Natural Diamond

VG • I/SI1 • GIA 2547537024

Certificate GIA 2547537024

Diamond specifications and retailer prices

From £2,572 GBP
As of November 6, 2026
Save £2,848 GBP (53%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £6,368 GBP at NZ Jewellers · As of September 25, 2026
View at NZ Jewellers

About this 1.51ct natural heart diamond

This 1.51ct natural heart sits in the one-and-a-half to two 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 2547537024. Listed at 19 retailers as of November 6, 2026, with a 111% 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

1.51
Carat
I
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2547537024
Dimensions7.79 × 6.57 × 4.94 mm
L/W Ratio1.19
Top View
7.79 mm6.57 mm1.51 ctI / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2547537024
Side View
Table 59.0%CrownGirdle: MED-VTKPavilionCulet: NDepth 63.5%

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: £3,535 GBP|Low: £2,572 GBP|High: £5,825 GBP|Avg: £3,629 GBP|-5.7%
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
November 6, 2026
Retailer 17£2,572 GBP
Retailer 4£2,931 GBP
Retailer 16£2,967 GBP
Retailer 12£2,992 GBP
Retailer 6£3,025 GBP
Retailer 5£3,032 GBP
Retailer 15£3,112 GBP
Retailer 2£3,128 GBP
Retailer 10£3,268 GBP
Retailer 7£3,272 GBP
Retailer 11£3,417 GBP
Retailer 1£3,535 GBP
Retailer 9£3,741 GBP
Retailer 13£4,115 GBP
Retailer 8£4,498 GBP
Retailer 14£5,358 GBP
Retailer 3£5,420 GBP

26 data points across 17 retailers

19 retailers£2,572 GBP to £5,420 GBP

A
Cheapest Retailer
-
£2,572 GBP
B+
Retailer 2
-
£2,931 GBP
View
A
Retailer 3
-
£2,967 GBP
View
A
Retailer 4
-
£2,992 GBP
View
Retailer 5
-
£3,025 GBP
View
Price last confirmed 9 days ago
Retailer 6
-
£3,032 GBP
View
Price last confirmed 10 days ago
B+
Retailer 7
-
£3,112 GBP
View
Final sale: no returns
B+
Retailer 8
-
£3,128 GBP
View
B+
Retailer 9
-
£3,268 GBP
View
Retailer 10
-
£3,272 GBP
View
Price last confirmed 8 days ago
B+
Retailer 11
-
£3,417 GBP
View
B+
Retailer 12
-
£3,535 GBP
View
Retailer 13
-
£3,741 GBP
View
Price last confirmed 29 days ago
B+
Retailer 14
-
£3,864 GBP
View
B+
Retailer 15
-
£4,115 GBP
View
B
Retailer 16
-
£4,498 GBP
View
B
Retailer 17
-
£5,358 GBP
View
B
Retailer 18
-
£5,420 GBP
View
Most Expensive
NZ Jewellers
dbab1464-9771-4455-8ed1-3db95c4e0cfe · Sep 25
£6,368 GBP
$8,523 USD
View
Price last confirmed 42 days ago
18 more retailers have this diamond
Prices start from £2,572 GBPSave up to £2,848 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
1.51ct Heart
£2,572 GBP