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Heart|Natural|GIA

1.51ct I SI2 Heart Natural Diamond

EX • I/SI2 • GIA 6395991628

Certificate GIA 6395991628

Diamond specifications and retailer prices

From $7,852 NZD
As of November 6, 2026
Save $9,420 NZD (55%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $17,272 NZD at NZ Jewellers · As of November 5, 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 SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6395991628. Listed at 17 retailers as of November 5, 2026, with prices from $7,852 to $17,272, a $9,420 spread on the same certified stone. NZ Jewellers lists it at $17,272. 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
I
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6395991628
Dimensions7.21 × 7.86 × 4.42 mm
L/W Ratio1.09
Top View
7.21 mm7.86 mm1.51 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6395991628
Side View
Table 60.0%CrownGirdle: THN-VTKPavilionCulet: NoneDepth 56.3%

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: $9,777 NZD|Low: $7,809 NZD|High: $16,244 NZD|Avg: $10,543 NZD|-1.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 6, 2026
Retailer 3$7,852 NZD
Retailer 6$8,027 NZD
Retailer 1$9,777 NZD
Retailer 5$10,327 NZD
Retailer 2$11,621 NZD
Retailer 4$16,008 NZD

43 data points across 6 retailers

17 retailers$7,852 NZD to $17,272 NZD

A
Cheapest Retailer
-
$7,852 NZD
B+
Retailer 2
-
$8,027 NZD
View
B+
Retailer 3
-
$8,514 NZD
View
B+
Retailer 4
-
$8,514 NZD
View
B+
Retailer 5
-
$8,738 NZD
View
B+
Retailer 6
-
$8,803 NZD
View
B+
Retailer 7
-
$9,007 NZD
View
B+
Retailer 8
-
$9,777 NZD
View
B
Retailer 9
-
$10,197 NZD
View
Retailer 10
-
$10,327 NZD
View
Price last confirmed 8 days ago
B
Retailer 11
-
$10,327 NZD
View
B
Retailer 12
-
$10,327 NZD
View
B
Retailer 13
-
$10,605 NZD
View
B+
Retailer 14
-
$11,621 NZD
View
B
Retailer 15
-
$11,915 NZD
View
B
Retailer 16
-
$16,008 NZD
View
Most Expensive
B
NZ Jewellers
1fc45747-6b72-4cb9-9f11-25bbf6aa3c05 · Nov 5
$17,272 NZD
$9,575 USD
View
16 more retailers have this diamond
Prices start from $7,852 NZDSave up to $9,420 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
$7,852 NZD