Heart|Natural|GIA

1.51ct I SI1 Heart Natural Diamond

VG • I/SI1 • GIA 2547537024

Certificate GIA 2547537024

Diamond specifications and retailer prices

From $3,443 USD
As of November 6, 2026
Save $3,812 USD (53%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $8,523 USD 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
Color
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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $4,270 USD|Low: $3,443 USD|High: $7,797 USD|Avg: $4,855 USD|+2.8%
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 7, 2026
Retailer 17$3,443 USD
Retailer 4$3,923 USD
Retailer 16$3,971 USD
Retailer 6$4,049 USD
Retailer 5$4,058 USD
Retailer 15$4,166 USD
Retailer 2$4,187 USD
Retailer 1$4,270 USD
Retailer 11$4,374 USD
Retailer 7$4,380 USD
Retailer 12$4,573 USD
Retailer 10$4,731 USD
Retailer 9$5,007 USD
Retailer 13$5,508 USD
Retailer 8$6,020 USD
Retailer 14$7,171 USD
Retailer 3$7,255 USD

26 data points across 17 retailers

19 retailers$3,443 USD to $7,255 USD

A
Cheapest Retailer
-
$3,443 USD
B+
Retailer 2
-
$3,923 USD
View
A
Retailer 3
-
$3,971 USD
View
Retailer 4
-
$4,049 USD
View
Price last confirmed 9 days ago
Retailer 5
-
$4,058 USD
View
Price last confirmed 10 days ago
B+
Retailer 6
-
$4,166 USD
View
Final sale: no returns
B+
Retailer 7
-
$4,187 USD
View
B+
Retailer 8
-
$4,270 USD
View
B+
Retailer 9
-
$4,374 USD
View
Retailer 10
-
$4,380 USD
View
Price last confirmed 8 days ago
B+
Retailer 11
-
$4,573 USD
View
B+
Retailer 12
-
$4,731 USD
View
Retailer 13
-
$5,007 USD
View
Price last confirmed 29 days ago
B+
Retailer 14
-
$5,172 USD
View
B+
Retailer 15
-
$5,508 USD
View
B
Retailer 16
-
$6,020 USD
View
B
Retailer 17
-
$7,171 USD
View
B
Retailer 18
-
$7,255 USD
View
Most Expensive
NZ Jewellers
dbab1464-9771-4455-8ed1-3db95c4e0cfe · Sep 25
$8,523 USD
View
Price last confirmed 42 days ago
18 more retailers have this diamond
Prices start from $3,443 USDSave up to $3,812 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
$3,443 USD