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Heart|Natural|GIA

1.51ct J SI1 Heart Natural Diamond

EX • J/SI1 • GIA 6565046861

Certificate GIA 6565046861

Diamond specifications and retailer prices

From $5,323 NZD
As of November 6, 2026
Save $1,956 NZD (27%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $7,279 NZD at GemTrove · As of November 6, 2026
View at GemTrove

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 SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6565046861. Listed at 7 retailers as of November 6, 2026, with prices from $5,323 to $7,279, a $1,956 spread on the same certified stone. GemTrove lists it at $7,279. 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
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6565046861
Dimensions7.14 × 7.80 × 4.62 mm
L/W Ratio1.09
Culet sizeNone
Key to symbols
Twinning Wisp, Cloud, Feather, Natural
Top View
7.14 mm7.80 mm1.51 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6565046861
Side View
Table 59.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 59.2%

Caratlytics Score

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

Price History

Last verified: Nov 6
Current: $5,323 NZD|Low: $5,323 NZD|High: $7,255 NZD|Avg: $6,122 NZD|-1.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 6, 2026
Retailer 1$5,323 NZD
Retailer 3$5,410 NZD
Retailer 2$5,783 NZD
Retailer 5$6,335 NZD
Retailer 4$6,451 NZD

45 data points across 5 retailers

7 retailers$5,323 NZD to $7,279 NZD

A
Cheapest Retailer
-
$5,323 NZD
A
Retailer 2
-
$5,410 NZD
View
A
Retailer 3
-
$5,783 NZD
View
B+
Retailer 4
-
$6,335 NZD
View
B+
Retailer 5
-
$6,451 NZD
View
B+
Retailer 6
-
$6,786 NZD
View
Most Expensive
B+
GemTrove
GT-N-01269524-98 · Nov 6
$7,279 NZD
A$6,208 AUD
View
6 more retailers have this diamond
Prices start from $5,323 NZDSave up to $1,956 NZD

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
$5,323 NZD