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Heart|Natural|GIA

1.51ct G SI1 Heart Natural Diamond

VG • G/SI1 • GIA 6542906470

Certificate GIA 6542906470

Diamond specifications and retailer prices

From $9,600 NZD
As of November 4, 2026
Save $8,956 NZD (48%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $20,918 NZD at NZ Jewellers · As of October 21, 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 SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6542906470. Listed at 15 retailers as of November 4, 2026, with a 93% 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
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6542906470
Dimensions6.72 × 7.94 × 4.73 mm
L/W Ratio1.18
Top View
6.72 mm7.94 mm1.51 ctG / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6542906470
Side View
Table 61.0%CrownGirdle: STK-ETKPavilionCulet: NoneDepth 59.6%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: $20,918 NZD|Low: $8,973 NZD|High: $20,918 NZD|Avg: $12,979 NZD
NZ Jewellers
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 6, 2026
Retailer 4$8,973 NZD
Retailer 15$9,600 NZD
Retailer 16$11,112 NZD
Retailer 12$11,330 NZD
Retailer 13$11,330 NZD
Retailer 14$11,330 NZD
Retailer 2$11,834 NZD
Retailer 7$12,736 NZD
Retailer 8$12,736 NZD
Retailer 5$12,921 NZD
Retailer 3$13,075 NZD
Retailer 6$13,150 NZD
Retailer 9$13,722 NZD
Retailer 10$15,409 NZD
Retailer 11$18,557 NZD
NZ Jewellers$20,918 NZD

37 data points across 16 retailers

15 retailers$9,600 NZD to $18,557 NZD

Retailer 1
-
$8,973 NZD
Price last confirmed 8 days ago
B+
Retailer 2
-
$9,600 NZD
View
B+
Retailer 3
-
$11,112 NZD
View
Retailer 4
-
$11,330 NZD
View
Price last confirmed 16 days ago
Retailer 5
-
$11,330 NZD
View
Price last confirmed 16 days ago
B+
Retailer 6
-
$11,834 NZD
View
B+
Retailer 7
-
$12,736 NZD
View
B+
Retailer 8
-
$12,736 NZD
View
B
Retailer 9
-
$12,921 NZD
View
Retailer 10
-
$13,075 NZD
View
Price last confirmed 15 days ago
B
Retailer 11
-
$13,150 NZD
View
B
Retailer 12
-
$13,722 NZD
View
B
Retailer 13
-
$15,409 NZD
View
B
Retailer 14
-
$18,557 NZD
View
Most Expensive
NZ Jewellers
91b28675-faf2-44ca-b624-bf80e65eaa5d · Oct 21
$20,918 NZD
$11,596 USD
View
Price last confirmed 16 days ago
14 more retailers have this diamond
Prices start from $9,600 NZDSave up to $8,956 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.

B+
1.51ct Heart
$9,600 NZD