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Heart|Natural|GIA

1.51ct E SI1 Heart Natural Diamond

EX • E/SI1 • GIA 2547456292

Certificate GIA 2547456292

Diamond specifications and retailer prices

From £3,286 GBP
HK$34,400 HKD
As of October 31, 2026
Save £3,799 GBP (54%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £7,258 GBP at NZ Jewellers · As of October 18, 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 top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2547456292. Listed at 20 retailers as of October 28, 2026, with a 116% 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

1.51
Carat
E
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2547456292
Dimensions7.92 × 6.95 × 4.73 mm
L/W Ratio1.14
Top View
7.92 mm6.95 mm1.51 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2547456292
Side View
Table 58.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 59.7%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: £7,258 GBP|Low: £3,258 GBP|High: £7,258 GBP|Avg: £4,721 GBP
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
October 31, 2026
Retailer 10£3,286 GBP
Retailer 9£3,521 GBP
Retailer 14£3,675 GBP
Retailer 15£3,875 GBP
Retailer 3£4,005 GBP
Retailer 5£4,181 GBP
Retailer 11£4,233 GBP
Retailer 6£4,306 GBP
Retailer 7£4,340 GBP
Retailer 8£4,401 GBP
Retailer 4£4,456 GBP
Retailer 16£5,007 GBP
Retailer 2£5,332 GBP
Retailer 12£6,427 GBP
Retailer 13£7,085 GBP
NZ Jewellers£7,258 GBP

31 data points across 16 retailers

20 retailers£3,286 GBP to £7,085 GBP

A
Cheapest Retailer
-
£3,286 GBP
HK$34,400 HKD
A
Retailer 2
-
£3,521 GBP
₹449,265 INR
View
A
Retailer 3
-
£3,675 GBP
$4,924 USD
View
A
Retailer 4
-
£3,875 GBP
SGD 7,016 SGD
View
A
Retailer 5
-
£4,005 GBP
$5,366 USD
View
Final sale: no returns
A
Retailer 6
-
£4,029 GBP
$5,398 USD
View
A
Retailer 7
-
£4,030 GBP
$5,400 USD
View
Retailer 8
-
£4,181 GBP
SGD 7,571 SGD
View
Price last confirmed 17 days ago
A
Retailer 9
-
£4,233 GBP
View
A
Retailer 10
-
£4,306 GBP
$5,770 USD
View
Retailer 11
-
£4,340 GBP
$5,815 USD
View
Price last confirmed 16 days ago
Retailer 12
-
£4,340 GBP
$5,815 USD
View
Price last confirmed 13 days ago
Retailer 13
-
£4,340 GBP
$5,815 USD
View
Price last confirmed 15 days ago
Retailer 14
-
£4,401 GBP
A$9,071 AUD
View
Price last confirmed 28 days ago
B+
Retailer 15
-
£4,456 GBP
$5,970 USD
View
Retailer 16
-
£5,007 GBP
$6,709 USD
View
Price last confirmed 13 days ago
B+
Retailer 17
-
£5,332 GBP
ZAR 115,412 ZAR
View
B+
Retailer 18
-
£6,427 GBP
View
B
Retailer 19
-
£7,085 GBP
View
Most Expensive
NZ Jewellers
2943639a-a38b-49ae-abd5-75d50a9656cd · Oct 18
£7,258 GBP
$9,725 USD
View
Price last confirmed 14 days ago
19 more retailers have this diamond
Prices start from £3,286 GBPSave up to £3,799 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
£3,286 GBP