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Heart|Natural|GIA

1.51ct K SI2 Heart Natural Diamond

VG • K/SI2 • GIA 7488034686

Certificate GIA 7488034686

Diamond specifications and retailer prices

From HK$15,432 HKD
As of November 5, 2026
Save HK$20,087 HKD (57%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: HK$43,780 HKD at NZ Jewellers · As of September 28, 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 K colour (faint-tinted) and SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 7488034686. Listed at 15 retailers as of November 2, 2026, with a 130% 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
K
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36.6°
Pavilion angle38.2°
OriginNatural
Grading LabGIA
CertificateGIA 7488034686
Dimensions8.02 × 7.02 × 4.01 mm
L/W Ratio1.14
Key to symbols
Feather, Twinning Wisp
Top View
8.02 mm7.02 mm1.51 ctK / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 7488034686
Side View
Table 59.0%Crown 36.6°Girdle: MED-THKPavilion 38.2°Culet: NoneDepth 57.1%

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 5
Current: HK$42,392 HKD|Low: HK$15,346 HKD|High: HK$43,780 HKD|Avg: HK$23,489 HKD|-3.2%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 5HK$15,432 HKD
Retailer 2HK$16,733 HKD
Retailer 9HK$18,159 HKD
Retailer 8HK$20,275 HKD
Retailer 10HK$20,275 HKD
Retailer 7HK$21,216 HKD
Retailer 3HK$21,380 HKD
Retailer 4HK$21,459 HKD
Retailer 11HK$23,395 HKD
Retailer 6HK$35,519 HKD
NZ JewellersHK$42,392 HKD

44 data points across 11 retailers

15 retailersHK$15,432 HKD to HK$35,519 HKD

A
Cheapest Retailer
-
HK$15,432 HKD
A
Retailer 2
-
HK$16,733 HKD
View
B+
Retailer 3
-
HK$18,159 HKD
View
Retailer 4
-
HK$20,275 HKD
View
Price last confirmed 11 days ago
Retailer 5
-
HK$20,275 HKD
View
Price last confirmed 12 days ago
Retailer 6
-
HK$20,942 HKD
View
Price last confirmed 39 days ago
Retailer 7
-
HK$21,216 HKD
View
Price last confirmed 12 days ago
B+
Retailer 8
-
HK$21,380 HKD
View
A
Retailer 9
-
HK$21,459 HKD
View
Retailer 10
-
HK$23,395 HKD
View
Price last confirmed 10 days ago
Retailer 11
-
HK$24,163 HKD
View
Price last confirmed 61 days ago
Retailer 12
-
HK$24,163 HKD
View
Price last confirmed 38 days ago
B
Retailer 13
-
HK$35,519 HKD
View
Retailer 14
-
HK$42,392 HKD
View
Price last confirmed 10 days ago
Most Expensive
NZ Jewellers
2818403f-ff57-435c-ae52-52e63dfee60a · Sep 28
HK$43,780 HKD
$5,586 USD
View
Price last confirmed 39 days ago
14 more retailers have this diamond
Prices start from HK$15,432 HKDSave up to HK$20,087 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$15,432 HKD