Heart|Natural|GIA

1.51ct K SI2 Heart Natural Diamond

FR • K/SI2 • GIA 2457516258

Certificate GIA 2457516258

Diamond specifications and retailer prices

From $2,614 USD
As of November 4, 2026
13 retailers carry this diamond
Most expensive: $5,788 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 K colour (faint-tinted) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 2457516258. Listed at 13 retailers as of November 4, 2026. 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
K
Color
SI2
Clarity
Fair
Cut (retailer stated)

Specifications

Cut (retailer stated)Fair
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2457516258
Dimensions6.65 × 7.96 × 4.74 mm
L/W Ratio1.20
Top View
6.65 mm7.96 mm1.51 ctK / SI2
OriginNatural
CutFair
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2457516258
Side View
Table 52.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 59.6%

Caratlytics Score

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B+
Very Good
Strong quality and value balance
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Price History

Last verified: Nov 4
Current: $2,614 USD|Low: $2,178 USD|High: $5,622 USD|Avg: $3,529 USD|+20.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 4, 2026
Retailer 1$2,614 USD
Retailer 9$2,696 USD
Retailer 2$3,010 USD
Retailer 7$3,010 USD
Retailer 11$3,034 USD
Retailer 5$3,347 USD
Retailer 4$3,434 USD
Retailer 3$3,577 USD
Retailer 10$3,953 USD
Retailer 8$4,793 USD
Retailer 6$5,585 USD

40 data points across 11 retailers

13 retailers

Retailer 1
-
$2,549 USD
Price last confirmed 20 days ago
B+
Retailer 2
-
$2,614 USD
View
Retailer 3
-
$2,696 USD
View
Price last confirmed 17 days ago
Retailer 4
-
$3,010 USD
View
Price last confirmed 17 days ago
Retailer 5
-
$3,010 USD
View
Price last confirmed 21 days ago
Retailer 6
-
$3,034 USD
View
Price last confirmed 19 days ago
Retailer 7
-
$3,067 USD
View
Price last confirmed 22 days ago
Retailer 8
-
$3,125 USD
View
Price last confirmed 21 days ago
Retailer 9
-
$3,434 USD
View
Price last confirmed 16 days ago
Retailer 10
-
$3,473 USD
View
Price last confirmed 18 days ago
Retailer 11
-
$4,793 USD
View
Price last confirmed 18 days ago
Retailer 12
-
$5,585 USD
View
Price last confirmed 20 days ago
Most Expensive
NZ Jewellers
ef507fc5-24aa-482a-a62b-d7e834340f75 · Oct 18
$5,788 USD
View
Price last confirmed 19 days ago
12 more retailers have this diamond
Prices start from $2,614 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.

B+
1.51ct Heart
$2,614 USD