Heart|Natural|GIA

1.51ct E SI1 Heart Natural Diamond

EX • E/SI1 • GIA 2547456292

Certificate GIA 2547456292

Diamond specifications and retailer prices

From $4,365 USD
HK$34,100 HKD
As of October 30, 2026
Save $5,128 USD (54%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $9,725 USD 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 117% 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
Color
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 30
Current: $9,725 USD|Low: $4,365 USD|High: $9,725 USD|Avg: $6,359 USD
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 30, 2026
Retailer 3$4,365 USD
Retailer 2$4,734 USD
Retailer 13$4,924 USD
Retailer 14$5,192 USD
Retailer 16$5,366 USD
Retailer 5$5,603 USD
Retailer 9$5,672 USD
Retailer 6$5,770 USD
Retailer 7$5,815 USD
Retailer 8$5,896 USD
Retailer 4$5,970 USD
Retailer 15$6,709 USD
Retailer 12$7,080 USD
Retailer 10$8,612 USD
Retailer 11$9,493 USD
NZ Jewellers$9,725 USD

32 data points across 16 retailers

20 retailers$4,365 USD to $9,493 USD

A
Cheapest Retailer
-
$4,365 USD
HK$34,100 HKD
A
Retailer 2
-
$4,734 USD
₹450,829 INR
View
A
Retailer 3
-
$4,924 USD
View
A
Retailer 4
-
$5,192 USD
SGD 7,016 SGD
View
A
Retailer 5
-
$5,366 USD
View
Final sale: no returns
A
Retailer 6
-
$5,398 USD
View
A
Retailer 7
-
$5,400 USD
View
Retailer 8
-
$5,603 USD
SGD 7,571 SGD
View
Price last confirmed 16 days ago
A
Retailer 9
-
$5,672 USD
£4,466 GBP
View
A
Retailer 10
-
$5,770 USD
View
Retailer 11
-
$5,815 USD
View
Price last confirmed 15 days ago
Retailer 12
-
$5,815 USD
View
Price last confirmed 13 days ago
Retailer 13
-
$5,815 USD
View
Price last confirmed 14 days ago
Retailer 14
-
$5,896 USD
A$9,071 AUD
View
Price last confirmed 27 days ago
B+
Retailer 15
-
$5,970 USD
View
Retailer 16
-
$6,709 USD
View
Price last confirmed 12 days ago
B+
Retailer 17
-
$7,080 USD
ZAR 114,386 ZAR
View
B+
Retailer 18
-
$8,612 USD
£6,781 GBP
View
B
Retailer 19
-
$9,493 USD
£7,475 GBP
View
Most Expensive
NZ Jewellers
2943639a-a38b-49ae-abd5-75d50a9656cd · Oct 18
$9,725 USD
View
Price last confirmed 13 days ago
19 more retailers have this diamond
Prices start from $4,365 USDSave up to $5,128 USD

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
$4,365 USD