Heart|Natural|GIA

1.51ct G SI2 Heart Natural Diamond

VG • G/SI2 • GIA 6541179721

Certificate GIA 6541179721

Diamond specifications and retailer prices

From $3,149 USD
HK$24,600 HKD
As of November 1, 2026
Save $3,863 USD (55%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $7,754 USD 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 November 1, 2026, with a 123% 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
Color
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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $4,062 USD|Low: $3,123 USD|High: $7,255 USD|Avg: $4,388 USD|-10.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 2, 2026
Retailer 5$3,149 USD
Retailer 6$3,151 USD
Retailer 2$3,371 USD
Retailer 7$3,389 USD
Retailer 11$3,505 USD
Retailer 10$3,830 USD
Retailer 1$4,062 USD
Retailer 8$4,181 USD
Retailer 3$4,653 USD
Retailer 9$6,558 USD
Retailer 4$7,012 USD

36 data points across 11 retailers

13 retailers$3,149 USD to $7,012 USD

A
Cheapest Retailer
-
$3,149 USD
HK$24,600 HKD
A
Retailer 2
-
$3,151 USD
View
A
Retailer 3
-
$3,371 USD
View
A
Retailer 4
-
$3,389 USD
View
A
Retailer 5
-
$3,505 USD
View
Final sale: no returns
A
Retailer 6
-
$3,757 USD
A$5,780 AUD
View
A
Retailer 7
-
$3,830 USD
View
A
Retailer 8
-
$4,062 USD
£3,198 GBP
View
A
Retailer 9
-
$4,181 USD
SGD 5,650 SGD
View
B+
Retailer 10
-
$4,653 USD
A$7,158 AUD
View
Retailer 11
-
$6,558 USD
View
Price last confirmed 9 days ago
B+
Retailer 12
-
$7,012 USD
£5,521 GBP
View
Most Expensive
NZ Jewellers
a3838425-575f-43a2-919a-eba1d071daa9 · Sep 25
$7,754 USD
View
Price last confirmed 37 days ago
12 more retailers have this diamond
Prices start from $3,149 USDSave up to $3,863 USD

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
$3,149 USD