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Heart|Natural|GIA

1.51ct G SI1 Heart Natural Diamond

EX • G/SI1 • GIA 7548658345

Certificate GIA 7548658345

Diamond specifications and retailer prices

From HK$35,511 HKD
As of November 6, 2026
Save HK$38,184 HKD (52%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: HK$87,418 HKD 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 SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 7548658345. Listed at 18 retailers as of November 6, 2026, with a 108% 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
G
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Pavilion angle40.1°
OriginNatural
Grading LabGIA
CertificateGIA 7548658345
Dimensions6.85 × 7.92 × 4.61 mm
L/W Ratio1.16
Girdle conditionFaceted
Top View
6.85 mm7.92 mm1.51 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 7548658345
Side View
Table 59.0%CrownGirdle: STK-VTKPavilion 40.1°Culet: NoneDepth 58.2%

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 6
Current: HK$39,861 HKD|Low: HK$35,010 HKD|High: HK$78,930 HKD|Avg: HK$47,229 HKD|-6.8%
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 6, 2026
Retailer 5HK$35,511 HKD
Retailer 7HK$35,684 HKD
Retailer 14HK$37,855 HKD
Retailer 6HK$38,905 HKD
Retailer 2HK$39,500 HKD
Retailer 13HK$39,736 HKD
Retailer 1HK$39,861 HKD
Retailer 11HK$40,206 HKD
Retailer 3HK$41,930 HKD
Retailer 4HK$44,610 HKD
Retailer 9HK$44,673 HKD
Retailer 16HK$47,706 HKD
Retailer 8HK$49,579 HKD
Retailer 10HK$56,766 HKD
Retailer 12HK$68,358 HKD
Retailer 15HK$73,695 HKD

27 data points across 16 retailers

18 retailersHK$35,511 HKD to HK$73,695 HKD

A
Cheapest Retailer
-
HK$35,511 HKD
Retailer 2
-
HK$35,684 HKD
View
Price last confirmed 8 days ago
A
Retailer 3
-
HK$37,855 HKD
View
A
Retailer 4
-
HK$38,905 HKD
View
Final sale: no returns
A
Retailer 5
-
HK$39,500 HKD
View
A
Retailer 6
-
HK$39,736 HKD
View
A
Retailer 7
-
HK$39,861 HKD
View
A
Retailer 8
-
HK$40,206 HKD
View
A
Retailer 9
-
HK$41,930 HKD
View
B+
Retailer 10
-
HK$44,610 HKD
View
B+
Retailer 11
-
HK$44,673 HKD
View
B+
Retailer 12
-
HK$47,706 HKD
View
Retailer 13
-
HK$49,579 HKD
View
Price last confirmed 28 days ago
B+
Retailer 14
-
HK$51,288 HKD
View
B+
Retailer 15
-
HK$56,766 HKD
View
B
Retailer 16
-
HK$68,358 HKD
View
B
Retailer 17
-
HK$73,695 HKD
View
Most Expensive
NZ Jewellers
dfd524f4-d138-4721-ad10-4a247a2a057c · Sep 25
HK$87,418 HKD
$11,154 USD
View
Price last confirmed 42 days ago
17 more retailers have this diamond
Prices start from HK$35,511 HKDSave up to HK$38,184 HKD

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
HK$35,511 HKD