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Heart|Natural|GIA

1.51ct E SI1 Heart Natural Diamond

GD • E/SI1 • GIA 5241064519

Certificate GIA 5241064519

Diamond specifications and retailer prices

From £4,084 GBP
HK$42,400 HKD
As of October 29, 2026
Save £5,269 GBP (56%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £9,353 GBP at NZ Jewellers · As of October 27, 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 E colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 5241064519. Listed at 16 retailers as of October 27, 2026, with prices from £4,084 to £9,353, a £5,269 spread on the same certified stone. NZ Jewellers lists it at £9,353. 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
E
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5241064519
Dimensions6.94 × 8.07 × 4.59 mm
L/W Ratio1.16
Girdle conditionFaceted
Top View
6.94 mm8.07 mm1.51 ctE / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5241064519
Side View
Table 59.0%CrownGirdle: STK-THKPavilionCulet: NDepth 56.9%

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 29
Current: £9,353 GBP|Low: £4,084 GBP|High: £10,066 GBP|Avg: £5,964 GBP|-7.1%
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
October 29, 2026
Retailer 4£4,084 GBP
Retailer 9£4,573 GBP
Retailer 12£4,625 GBP
Retailer 8£4,665 GBP
Retailer 15£4,987 GBP
Retailer 2£5,017 GBP
Retailer 6£5,162 GBP
Retailer 3£5,166 GBP
Retailer 10£5,263 GBP
Retailer 5£5,381 GBP
Retailer 7£5,677 GBP
Retailer 14£5,975 GBP
Retailer 13£6,810 GBP
Retailer 11£7,835 GBP
NZ Jewellers£9,353 GBP

24 data points across 15 retailers

16 retailers£4,084 GBP to £9,353 GBP

A
Cheapest Retailer
-
£4,084 GBP
HK$42,400 HKD
B+
Retailer 2
-
£4,573 GBP
$6,076 USD
View
B+
Retailer 3
-
£4,625 GBP
$6,145 USD
View
B+
Retailer 4
-
£4,665 GBP
€5,903 EUR
View
B+
Retailer 5
-
£4,987 GBP
$6,627 USD
View
B+
Retailer 6
-
£5,017 GBP
View
B+
Retailer 7
-
£5,162 GBP
$6,859 USD
View
Final sale: no returns
B+
Retailer 8
-
£5,166 GBP
$6,865 USD
View
B+
Retailer 9
-
£5,202 GBP
SGD 9,341 SGD
View
Price last confirmed 17 days ago
B+
Retailer 10
-
£5,263 GBP
View
B+
Retailer 11
-
£5,381 GBP
$7,150 USD
View
B
Retailer 12
-
£5,677 GBP
A$11,606 AUD
View
Price last confirmed 7 days ago
B
Retailer 13
-
£5,975 GBP
$7,940 USD
View
B
Retailer 14
-
£6,810 GBP
ZAR 146,183 ZAR
View
B
Retailer 15
-
£7,835 GBP
View
Most Expensive
B
NZ Jewellers
8d05e944-032d-4c6d-9959-f4b455daba42 · Oct 27
£9,353 GBP
$12,428 USD
View
15 more retailers have this diamond
Prices start from £4,084 GBPSave up to £5,269 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
£4,084 GBP