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Heart|Natural|GIA

1.51ct J SI2 Heart Natural Diamond

EX • J/SI2 • GIA 1458052289

Certificate GIA 1458052289

Diamond specifications and retailer prices

From $3,825 USD
As of November 1, 2026
Save $3,135 USD (45%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $6,960 USD at MOH London · As of October 29, 2026
View at MOH London

About this 1.51ct natural heart diamond

This 1.51ct natural heart sits in the one-and-a-half to two carat band, graded J colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1458052289. Listed at 10 retailers as of October 29, 2026, with prices from $3,825 to $6,960, a $3,135 spread on the same certified stone. MOH London lists it at $6,960. 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
J
Color
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1458052289
Dimensions6.58 × 6.58 × 4.50 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Twinning Wisp, Feather, Crystal, Indented Natural, Needle
Top View
6.58 mm6.58 mm1.51 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1458052289
Side View
Table 63.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 68.4%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $6,960 USD|Low: $3,289 USD|High: $7,007 USD|Avg: $4,566 USD|-0.7%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 2, 2026
Retailer 6$3,825 USD
Retailer 5$4,012 USD
Retailer 7$4,018 USD
Retailer 2$4,225 USD
Retailer 3$4,298 USD
Retailer 8$4,549 USD
Retailer 4$4,919 USD
MOH London$6,960 USD

38 data points across 8 retailers

10 retailers$3,825 USD to $6,960 USD

B+
Cheapest Retailer
-
$3,825 USD
B+
Retailer 2
-
$4,012 USD
View
Final sale: no returns
B+
Retailer 3
-
$4,018 USD
View
B+
Retailer 4
-
$4,157 USD
View
B+
Retailer 5
-
$4,225 USD
£3,327 GBP
View
B+
Retailer 6
-
$4,298 USD
£3,384 GBP
View
B
Retailer 7
-
$4,495 USD
View
B
Retailer 8
-
$4,549 USD
A$6,998 AUD
View
B+
Retailer 9
-
$4,919 USD
€4,685 EUR
View
Most Expensive
B
MOH London
1815B6933 · Oct 29
$6,960 USD
£5,480 GBP
View
9 more retailers have this diamond
Prices start from $3,825 USDSave up to $3,135 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
$3,825 USD