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Heart|Natural|GIA

1.51ct H SI1 Heart Natural Diamond

VG • H/SI1 • GIA 2243015771

Certificate GIA 2243015771

Diamond specifications and retailer prices

From £2,661 GBP
HK$27,900 HKD
As of November 2, 2026
Save £3,013 GBP (53%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £6,850 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 H 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 2243015771. Listed at 15 retailers as of November 1, 2026, with a 113% 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
H
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2243015771
Dimensions6.55 × 7.77 × 4.93 mm
L/W Ratio1.19
Girdle conditionFaceted
Top View
6.55 mm7.77 mm1.51 ctH / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2243015771
Side View
Table 58.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 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 2
Current: £2,661 GBP|Low: £2,623 GBP|High: £6,258 GBP|Avg: £3,842 GBP|-3.5%
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
November 2, 2026
Retailer 1£2,661 GBP
Retailer 11£3,042 GBP
Retailer 9£3,046 GBP
Retailer 8£3,197 GBP
Retailer 13£3,206 GBP
Retailer 6£3,337 GBP
Retailer 4£3,384 GBP
Retailer 7£3,394 GBP
Retailer 3£3,409 GBP
Retailer 5£4,021 GBP
Retailer 12£4,444 GBP
Retailer 2£5,640 GBP
Retailer 10£5,675 GBP

28 data points across 13 retailers

15 retailers£2,661 GBP to £5,675 GBP

A
Cheapest Retailer
-
£2,661 GBP
HK$27,900 HKD
A
Retailer 2
-
£3,042 GBP
€3,887 EUR
View
A
Retailer 3
-
£3,046 GBP
$4,087 USD
View
A
Retailer 4
-
£3,197 GBP
$4,290 USD
View
A
Retailer 5
-
£3,206 GBP
$4,302 USD
View
B+
Retailer 6
-
£3,337 GBP
$4,478 USD
View
Final sale: no returns
B+
Retailer 7
-
£3,384 GBP
SGD 6,137 SGD
View
B+
Retailer 8
-
£3,394 GBP
View
B+
Retailer 9
-
£3,409 GBP
$4,575 USD
View
Retailer 10
-
£4,021 GBP
A$8,302 AUD
View
Price last confirmed 23 days ago
B
Retailer 11
-
£4,058 GBP
A$8,378 AUD
View
B
Retailer 12
-
£4,444 GBP
ZAR 96,353 ZAR
View
B
Retailer 13
-
£5,640 GBP
$7,569 USD
View
B
Retailer 14
-
£5,675 GBP
View
Most Expensive
NZ Jewellers
194958cb-bb74-4300-a981-4e70b7f0d9d3 · Sep 25
£6,850 GBP
$9,192 USD
View
Price last confirmed 38 days ago
14 more retailers have this diamond
Prices start from £2,661 GBPSave up to £3,013 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
£2,661 GBP