Heart|Natural|GIA

1.55ct K SI1 Heart Natural Diamond

VG • K/SI1 • GIA 2507568166

Certificate GIA 2507568166

Diamond specifications and retailer prices

From HK$51,797 HKD
As of November 6, 2026
14 retailers carry this diamond
Most expensive: HK$55,285 HKD at NZ Jewellers · As of September 29, 2026
View at NZ Jewellers

About this 1.55ct natural heart diamond

This 1.55ct 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 very-good cut grade stated by the retailer rather than the lab and certified by GIA 2507568166. Listed at 14 retailers as of November 6, 2026. 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

1.55
Carat
K
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishVery Good
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2507568166
Dimensions7.88 × 7.21 × 4.17 mm
L/W Ratio1.09
Top View
7.88 mm7.21 mm1.55 ctK / SI1
OriginNatural
CutVery Good
PolishVery Good
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2507568166
Side View
Table 57.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 57.9%

Caratlytics Score

How it works →
C
Average
Compare with similar diamonds
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$51,797 HKD|Low: HK$25,519 HKD|High: HK$54,909 HKD|Avg: HK$33,973 HKD|+41.7%
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
November 6, 2026
Retailer 9HK$25,519 HKD
Retailer 2HK$26,099 HKD
Retailer 13HK$27,000 HKD
Retailer 11HK$28,755 HKD
Retailer 10HK$30,401 HKD
Retailer 5HK$30,566 HKD
Retailer 6HK$32,314 HKD
Retailer 3HK$32,447 HKD
Retailer 12HK$35,911 HKD
Retailer 4HK$37,439 HKD
Retailer 7HK$38,529 HKD
Retailer 1HK$51,797 HKD
Retailer 8HK$53,702 HKD

31 data points across 13 retailers

14 retailers

Retailer 1
-
HK$25,519 HKD
Price last confirmed 25 days ago
Retailer 2
-
HK$27,000 HKD
View
Price last confirmed 26 days ago
Retailer 3
-
HK$28,748 HKD
View
Price last confirmed 29 days ago
Retailer 4
-
HK$28,748 HKD
View
Price last confirmed 25 days ago
Retailer 5
-
HK$28,755 HKD
View
Price last confirmed 26 days ago
Retailer 6
-
HK$29,853 HKD
View
Price last confirmed 36 days ago
Retailer 7
-
HK$30,401 HKD
View
Price last confirmed 27 days ago
Retailer 8
-
HK$32,314 HKD
View
Price last confirmed 24 days ago
Retailer 9
-
HK$33,168 HKD
View
Price last confirmed 28 days ago
Retailer 10
-
HK$35,911 HKD
View
Price last confirmed 25 days ago
Retailer 11
-
HK$38,529 HKD
View
Price last confirmed 25 days ago
C
Retailer 12
-
HK$51,797 HKD
View
Retailer 13
-
HK$53,702 HKD
View
Price last confirmed 26 days ago
Most Expensive
NZ Jewellers
7fb79610-9bae-4e2e-870b-ea2ab4484357 · Sep 29
HK$55,285 HKD
$7,054 USD
View
Price last confirmed 37 days ago
13 more retailers have this diamond
Prices start from HK$51,797 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.

C
1.55ct Heart
HK$51,797 HKD