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Heart|Natural|GIA

1.51ct H SI2 Heart Natural Diamond

EX • H/SI2 • GIA 6532728042

Certificate GIA 6532728042

Diamond specifications and retailer prices

From $2,893 USD
HK$22,600 HKD
As of November 1, 2026
Save $3,615 USD (56%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $6,780 USD at NZ Jewellers · As of October 18, 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 SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6532728042. Listed at 15 retailers as of November 1, 2026, with a 125% 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
Color
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 6532728042
Dimensions6.85 × 7.74 × 4.82 mm
L/W Ratio1.13
Top View
6.85 mm7.74 mm1.51 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 6532728042
Side View
Table 57.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 62.2%

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: $3,770 USD|Low: $2,867 USD|High: $6,586 USD|Avg: $3,955 USD|-0.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 2, 2026
Retailer 4$2,893 USD
Retailer 6$3,323 USD
Retailer 7$3,424 USD
Retailer 5$3,518 USD
Retailer 8$3,592 USD
Retailer 9$3,639 USD
Retailer 1$3,770 USD
Retailer 2$3,981 USD
Retailer 3$6,507 USD

40 data points across 9 retailers

15 retailers$2,893 USD to $6,507 USD

A
Cheapest Retailer
-
$2,893 USD
HK$22,600 HKD
A
Retailer 2
-
$3,323 USD
View
A
Retailer 3
-
$3,424 USD
View
A
Retailer 4
-
$3,518 USD
View
A
Retailer 5
-
$3,592 USD
View
Final sale: no returns
A
Retailer 6
-
$3,639 USD
A$5,598 AUD
View
Retailer 7
-
$3,642 USD
SGD 4,922 SGD
View
Price last confirmed 7 days ago
A
Retailer 8
-
$3,770 USD
£2,968 GBP
View
Retailer 9
-
$3,891 USD
View
Price last confirmed 17 days ago
Retailer 10
-
$3,891 USD
View
Price last confirmed 15 days ago
A
Retailer 11
-
$3,981 USD
£3,134 GBP
View
Retailer 12
-
$4,041 USD
View
Price last confirmed 16 days ago
Retailer 13
-
$4,490 USD
View
Price last confirmed 14 days ago
B
Retailer 14
-
$6,507 USD
£5,124 GBP
View
Most Expensive
NZ Jewellers
750cbaa0-97f9-4cd3-94da-a0c5874a4cda · Oct 18
$6,780 USD
View
Price last confirmed 15 days ago
14 more retailers have this diamond
Prices start from $2,893 USDSave up to $3,615 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
$2,893 USD