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Heart|Natural|GIA

1.51ct H SI1 Heart Natural Diamond

EX • H/SI1 • GIA 7546607780

Certificate GIA 7546607780

Diamond specifications and retailer prices

From $7,219 NZD
$4,062 USD
As of November 1, 2026
Save $7,933 NZD (52%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $17,186 NZD at NZ Jewellers · As of September 25, 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 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 7546607780. Listed at 21 retailers as of November 1, 2026, with a 110% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
FluorescenceNone
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 7546607780
Dimensions6.80 × 7.95 × 4.72 mm
L/W Ratio1.17
Girdle conditionFaceted
Top View
6.80 mm7.95 mm1.51 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7546607780
Side View
Table 59.0%CrownGirdle: MED-THKPavilion 41.2°Culet: NoneDepth 59.3%

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 1
Current: $8,216 NZD|Low: $7,131 NZD|High: $16,112 NZD|Avg: $9,707 NZD|-4.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
November 2, 2026
Retailer 2$7,219 NZD
Retailer 14$7,257 NZD
Retailer 18$7,653 NZD
Retailer 16$7,955 NZD
Retailer 7$8,096 NZD
Retailer 8$8,176 NZD
Retailer 5$8,188 NZD
Retailer 1$8,216 NZD
Retailer 4$8,634 NZD
Retailer 12$8,851 NZD
Retailer 13$9,123 NZD
Retailer 17$9,283 NZD
Retailer 9$9,786 NZD
Retailer 10$10,038 NZD
Retailer 3$11,772 NZD
Retailer 15$11,926 NZD
Retailer 11$15,152 NZD
Retailer 6$15,191 NZD

25 data points across 18 retailers

21 retailers$7,219 NZD to $15,152 NZD

A
Cheapest Retailer
-
$7,219 NZD
$4,062 USD
A
Retailer 2
-
$7,257 NZD
HK$31,900 HKD
View
A
Retailer 3
-
$7,653 NZD
$4,306 USD
View
B+
Retailer 4
-
$7,955 NZD
$4,476 USD
View
Final sale: no returns
A
Retailer 5
-
$8,096 NZD
$4,555 USD
View
A
Retailer 6
-
$8,176 NZD
$4,600 USD
View
A
Retailer 7
-
$8,188 NZD
$4,607 USD
View
B+
Retailer 8
-
$8,216 NZD
€4,403 EUR
View
B+
Retailer 9
-
$8,634 NZD
$4,858 USD
View
B+
Retailer 10
-
$8,851 NZD
$4,980 USD
View
B+
Retailer 11
-
$9,123 NZD
$5,133 USD
View
Retailer 12
-
$9,183 NZD
$5,167 USD
View
Price last confirmed 12 days ago
B+
Retailer 13
-
$9,283 NZD
£4,113 GBP
View
B+
Retailer 14
-
$9,786 NZD
SGD 7,441 SGD
View
Retailer 15
-
$10,038 NZD
A$8,689 AUD
View
Price last confirmed 24 days ago
B
Retailer 16
-
$10,568 NZD
A$9,148 AUD
View
B+
Retailer 17
-
$11,772 NZD
ZAR 107,001 ZAR
View
B+
Retailer 18
-
$11,926 NZD
$6,710 USD
View
B
Retailer 19
-
$15,152 NZD
£6,713 GBP
View
Retailer 20
-
$15,191 NZD
$8,548 USD
View
Price last confirmed 10 days ago
Most Expensive
NZ Jewellers
dbf135a3-0579-43ef-9381-30a46e39cd96 · Sep 25
$17,186 NZD
$9,670 USD
View
Price last confirmed 38 days ago
20 more retailers have this diamond
Prices start from $7,219 NZDSave up to $7,933 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
$7,219 NZD