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Heart|Natural|GIA

1.51ct G SI2 Heart Natural Diamond

VG • G/SI2 • GIA 6541179721

Certificate GIA 6541179721

Diamond specifications and retailer prices

From $5,600 NZD
$3,151 USD
As of October 30, 2026
Save $7,051 NZD (56%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $13,781 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 G colour (near-colourless) and SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6541179721. Listed at 13 retailers as of October 30, 2026, with a 126% 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
G
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Pavilion angle40.7°
OriginNatural
Grading LabGIA
CertificateGIA 6541179721
Dimensions7.81 × 6.60 × 4.97 mm
L/W Ratio1.18
Top View
7.81 mm6.60 mm1.51 ctG / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6541179721
Side View
Table 58.0%CrownGirdle: STK-VTKPavilion 40.7°Culet: NoneDepth 63.7%

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: Oct 30
Current: $6,768 NZD|Low: $5,551 NZD|High: $12,895 NZD|Avg: $7,797 NZD
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 2, 2026
Retailer 10$5,600 NZD
Retailer 7$5,687 NZD
Retailer 3$5,991 NZD
Retailer 11$6,022 NZD
Retailer 8$6,325 NZD
Retailer 1$6,768 NZD
Retailer 6$6,914 NZD
Retailer 9$7,219 NZD
Retailer 12$7,431 NZD
Retailer 4$8,269 NZD
Retailer 2$11,655 NZD
Retailer 5$12,651 NZD

35 data points across 12 retailers

13 retailers$5,600 NZD to $12,651 NZD

A
Cheapest Retailer
-
$5,600 NZD
$3,151 USD
A
Retailer 2
-
$5,687 NZD
HK$25,000 HKD
View
A
Retailer 3
-
$5,991 NZD
$3,371 USD
View
A
Retailer 4
-
$6,022 NZD
$3,389 USD
View
A
Retailer 5
-
$6,325 NZD
$3,559 USD
View
Final sale: no returns
A
Retailer 6
-
$6,768 NZD
A$5,859 AUD
View
A
Retailer 7
-
$6,914 NZD
$3,890 USD
View
A
Retailer 8
-
$7,219 NZD
£3,198 GBP
View
A
Retailer 9
-
$7,431 NZD
SGD 5,650 SGD
View
B+
Retailer 10
-
$8,269 NZD
A$7,158 AUD
View
Retailer 11
-
$11,655 NZD
$6,558 USD
View
Price last confirmed 10 days ago
B
Retailer 12
-
$12,651 NZD
£5,605 GBP
View
Most Expensive
NZ Jewellers
a3838425-575f-43a2-919a-eba1d071daa9 · Sep 25
$13,781 NZD
$7,754 USD
View
Price last confirmed 38 days ago
12 more retailers have this diamond
Prices start from $5,600 NZDSave up to $7,051 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
$5,600 NZD