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Heart|Natural|GIA

1.51ct H SI1 Heart Natural Diamond

VG • H/SI1 • GIA 5231997262

Certificate GIA 5231997262

Diamond specifications and retailer prices

From $6,772 NZD
$3,810 USD
As of November 1, 2026
Save $7,413 NZD (52%) vs most expensive(unlock to see where)
18 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 very-good cut grade stated by the retailer rather than the lab and certified by GIA 5231997262. Listed at 18 retailers as of October 27, 2026, with a 109% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.51
Carat
H
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5231997262
Dimensions6.95 × 7.95 × 4.68 mm
L/W Ratio1.14
Girdle conditionFaceted
Top View
6.95 mm7.95 mm1.51 ctH / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5231997262
Side View
Table 59.0%CrownGirdle: MED-THKPavilionCulet: 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 1
Current: $7,734 NZD|Low: $6,688 NZD|High: $15,744 NZD|Avg: $9,100 NZD|-5.9%
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
November 2, 2026
Retailer 15$6,772 NZD
Retailer 11$6,779 NZD
Retailer 14$7,163 NZD
Retailer 12$7,422 NZD
Retailer 6$7,593 NZD
Retailer 7$7,607 NZD
Retailer 4$7,632 NZD
Retailer 1$7,734 NZD
Retailer 3$8,060 NZD
Retailer 10$8,176 NZD
Retailer 2$8,511 NZD
Retailer 13$8,828 NZD
Retailer 8$10,038 NZD
Retailer 16$10,912 NZD
Retailer 9$14,139 NZD
Retailer 5$14,185 NZD

25 data points across 16 retailers

18 retailers$6,772 NZD to $14,185 NZD

A
Cheapest Retailer
-
$6,772 NZD
$3,810 USD
A
Retailer 2
-
$6,779 NZD
HK$29,800 HKD
View
A
Retailer 3
-
$7,163 NZD
$4,030 USD
View
A
Retailer 4
-
$7,422 NZD
$4,176 USD
View
Final sale: no returns
A
Retailer 5
-
$7,593 NZD
$4,272 USD
View
A
Retailer 6
-
$7,607 NZD
$4,280 USD
View
A
Retailer 7
-
$7,632 NZD
$4,294 USD
View
A
Retailer 8
-
$7,734 NZD
€4,144 EUR
View
B+
Retailer 9
-
$8,060 NZD
$4,535 USD
View
B+
Retailer 10
-
$8,176 NZD
$4,600 USD
View
B+
Retailer 11
-
$8,511 NZD
$4,789 USD
View
B+
Retailer 12
-
$8,828 NZD
£3,911 GBP
View
Retailer 13
-
$10,038 NZD
A$8,689 AUD
View
Price last confirmed 24 days ago
B
Retailer 14
-
$10,129 NZD
A$8,768 AUD
View
B+
Retailer 15
-
$10,912 NZD
ZAR 99,190 ZAR
View
B
Retailer 16
-
$14,139 NZD
£6,264 GBP
View
B
Retailer 17
-
$14,185 NZD
$7,981 USD
View
Most Expensive
NZ Jewellers
a7f576fe-f550-4bb9-97c3-38e66aeea21e · Sep 25
$17,186 NZD
$9,670 USD
View
Price last confirmed 38 days ago
17 more retailers have this diamond
Prices start from $6,772 NZDSave up to $7,413 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
$6,772 NZD