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Heart|Natural|GIA

1.51ct K SI1 Heart Natural Diamond

EX • K/SI1 • GIA 2557604008

Certificate GIA 2557604008

Diamond specifications and retailer prices

From HK$20,683 HKD
As of November 6, 2026
Save HK$7,733 HKD (27%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: HK$28,416 HKD at GemTrove · As of November 6, 2026
View at GemTrove

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 SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2557604008. Listed at 8 retailers as of November 6, 2026, with prices from HK$20,683 to HK$28,416, a HK$7,733 spread on the same certified stone. GemTrove lists it at HK$28,416. 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
K
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2557604008
Dimensions7.02 × 8.11 × 4.76 mm
L/W Ratio1.16
Culet sizeNone
Key to symbols
Feather, Crystal, Needle, Pinpoint
Top View
7.02 mm8.11 mm1.51 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2557604008
Side View
Table 57.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 58.7%

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$20,683 HKD|Low: HK$18,629 HKD|High: HK$28,575 HKD|Avg: HK$23,177 HKD|-1.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 1HK$20,683 HKD
Retailer 4HK$20,855 HKD
Retailer 3HK$21,090 HKD
Retailer 7HK$21,396 HKD
Retailer 2HK$22,391 HKD
Retailer 6HK$24,163 HKD
Retailer 5HK$24,821 HKD

42 data points across 7 retailers

8 retailersHK$20,683 HKD to HK$28,416 HKD

A
Cheapest Retailer
-
HK$20,683 HKD
A
Retailer 2
-
HK$20,855 HKD
View
A
Retailer 3
-
HK$21,090 HKD
View
Final sale: no returns
A
Retailer 4
-
HK$21,396 HKD
View
A
Retailer 5
-
HK$22,391 HKD
View
A
Retailer 6
-
HK$24,163 HKD
View
A
Retailer 7
-
HK$24,821 HKD
View
Most Expensive
B+
GemTrove
GT-N-01269485-98 · Nov 6
HK$28,416 HKD
A$5,578 AUD
View
7 more retailers have this diamond
Prices start from HK$20,683 HKDSave up to HK$7,733 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$20,683 HKD