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Heart|Natural|GIA

1.51ct H SI1 Heart Natural Diamond

EX • H/SI1 • GIA 2568019518

Certificate GIA 2568019518

Diamond specifications and retailer prices

From $6,945 NZD
As of November 6, 2026
Save $2,398 NZD (26%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $9,343 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 H 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 2568019518. Listed at 6 retailers as of November 6, 2026, with prices from $6,945 to $9,343, a $2,398 spread on the same certified stone. GemTrove lists it at $9,343. 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
H
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2568019518
Dimensions6.80 × 8.08 × 4.75 mm
L/W Ratio1.19
Culet sizeNone
Key to symbols
Crystal, Feather, Knot, Needle
Top View
6.80 mm8.08 mm1.51 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2568019518
Side View
Table 62.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 58.8%

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: $6,945 NZD|Low: $6,945 NZD|High: $9,314 NZD|Avg: $7,783 NZD|-1.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 6, 2026
Retailer 1$6,945 NZD
Retailer 3$7,042 NZD
Retailer 2$7,504 NZD
Retailer 5$7,535 NZD
Retailer 4$8,350 NZD

45 data points across 5 retailers

6 retailers$6,945 NZD to $9,343 NZD

A
Cheapest Retailer
-
$6,945 NZD
A
Retailer 2
-
$7,042 NZD
View
A
Retailer 3
-
$7,504 NZD
View
A
Retailer 4
-
$7,535 NZD
View
B+
Retailer 5
-
$8,350 NZD
View
Most Expensive
B+
GemTrove
GT-N-01269521-98 · Nov 6
$9,343 NZD
A$7,968 AUD
View
5 more retailers have this diamond
Prices start from $6,945 NZDSave up to $2,398 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
$6,945 NZD