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Heart|Natural|GIA

1.51ct F SI2 Heart Natural Diamond

EX • F/SI2 • GIA 6542728816

Certificate GIA 6542728816

Diamond specifications and retailer prices

From HK$27,086 HKD
As of November 6, 2026
Save HK$29,727 HKD (52%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: HK$66,390 HKD at Queensmith · As of October 28, 2026
View at Queensmith

About this 1.51ct natural heart diamond

This 1.51ct natural heart sits in the one-and-a-half to two carat band, graded F colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6542728816. Listed at 16 retailers as of November 4, 2026, with a 110% 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
F
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6542728816
Dimensions7.06 × 8.02 × 4.60 mm
L/W Ratio1.14
Top View
7.06 mm8.02 mm1.51 ctF / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6542728816
Side View
Table 62.0%CrownGirdle: THN-VTKPavilionCulet: NoneDepth 57.4%

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$66,390 HKD|Low: HK$26,780 HKD|High: HK$67,684 HKD|Avg: HK$40,466 HKD|-1.9%
Queensmith
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 6HK$27,086 HKD
Retailer 2HK$28,818 HKD
Retailer 7HK$33,011 HKD
Retailer 9HK$34,414 HKD
Retailer 4HK$34,837 HKD
Retailer 3HK$35,213 HKD
Retailer 8HK$36,938 HKD
Retailer 5HK$56,813 HKD
QueensmithHK$66,390 HKD

41 data points across 9 retailers

16 retailersHK$27,086 HKD to HK$56,813 HKD

A
Cheapest Retailer
-
HK$27,086 HKD
A
Retailer 2
-
HK$28,818 HKD
View
A
Retailer 3
-
HK$33,011 HKD
View
Final sale: no returns
A
Retailer 4
-
HK$34,414 HKD
View
A
Retailer 5
-
HK$34,837 HKD
View
A
Retailer 6
-
HK$35,213 HKD
View
Retailer 7
-
HK$35,770 HKD
View
Price last confirmed 22 days ago
Retailer 8
-
HK$35,770 HKD
View
Price last confirmed 22 days ago
Retailer 9
-
HK$35,770 HKD
View
Price last confirmed 20 days ago
A
Retailer 10
-
HK$36,021 HKD
View
A
Retailer 11
-
HK$36,938 HKD
View
B+
Retailer 12
-
HK$37,988 HKD
View
Retailer 13
-
HK$41,272 HKD
View
Price last confirmed 19 days ago
B+
Retailer 14
-
HK$56,813 HKD
View
Retailer 15
-
HK$62,315 HKD
View
Price last confirmed 20 days ago
Most Expensive
Queensmith
6542728816 · Oct 28
HK$66,390 HKD
£6,670 GBP
View
Price last confirmed 9 days ago
15 more retailers have this diamond
Prices start from HK$27,086 HKDSave up to HK$29,727 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$27,086 HKD