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Heart|Natural|GIA

1.38ct F SI1 Heart Natural Diamond

ID • F/SI1 • GIA 6551660709

Certificate GIA 6551660709

Diamond specifications and retailer prices

From HK$28,701 HKD
As of November 6, 2026
Save HK$26,514 HKD (48%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: HK$59,455 HKD at NZ Jewellers · As of September 30, 2026
View at NZ Jewellers

About this 1.38ct natural heart diamond

This 1.38ct natural heart sits in the one-and-a-quarter to one-and-a-half carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6551660709. Listed at 17 retailers as of November 4, 2026, with a 92% 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

1.38
Carat
F
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.24°
Pavilion angle43.85°
OriginNatural
Grading LabGIA
CertificateGIA 6551660709
Dimensions6.70 × 7.75 × 4.66 mm
L/W Ratio1.16
Culet sizeNone
Key to symbols
Crystal, Feather, Cloud, Needle
Top View
6.70 mm7.75 mm1.38 ctF / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6551660709
Side View
Table 58.0%Crown 36.24°Girdle: Slightly ThickPavilion 43.85°Culet: NoneDepth 60.1%

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 6
Current: HK$33,035 HKD|Low: HK$24,680 HKD|High: HK$55,371 HKD|Avg: HK$38,049 HKD|-4.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 7, 2026
Retailer 6HK$28,701 HKD
Retailer 4HK$29,155 HKD
Retailer 5HK$30,103 HKD
Retailer 2HK$30,950 HKD
Retailer 1HK$33,035 HKD
Retailer 9HK$33,771 HKD
Retailer 7HK$34,461 HKD
Retailer 3HK$36,397 HKD
Retailer 8HK$36,703 HKD
Retailer 10HK$40,410 HKD
Retailer 11HK$55,214 HKD

43 data points across 11 retailers

17 retailersHK$28,701 HKD to HK$55,214 HKD

A
Cheapest Retailer
-
HK$28,701 HKD
B+
Retailer 2
-
HK$29,155 HKD
View
A
Retailer 3
-
HK$30,103 HKD
View
Final sale: no returns
B+
Retailer 4
-
HK$30,950 HKD
View
B+
Retailer 5
-
HK$33,035 HKD
View
B+
Retailer 6
-
HK$33,771 HKD
View
Retailer 7
-
HK$34,124 HKD
View
Price last confirmed 37 days ago
Retailer 8
-
HK$34,124 HKD
View
Price last confirmed 37 days ago
Retailer 9
-
HK$34,124 HKD
View
Price last confirmed 22 days ago
B+
Retailer 10
-
HK$34,461 HKD
View
Retailer 11
-
HK$36,397 HKD
View
Price last confirmed 29 days ago
B+
Retailer 12
-
HK$36,703 HKD
View
Retailer 13
-
HK$39,375 HKD
View
Price last confirmed 39 days ago
Retailer 14
-
HK$39,375 HKD
View
Price last confirmed 53 days ago
B+
Retailer 15
-
HK$40,410 HKD
View
B
Retailer 16
-
HK$55,214 HKD
View
Most Expensive
NZ Jewellers
1612a176-36bd-4fa1-ac4f-12ac06dd862f · Sep 30
HK$59,455 HKD
$7,586 USD
View
Price last confirmed 37 days ago
16 more retailers have this diamond
Prices start from HK$28,701 HKDSave up to HK$26,514 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
1.38ct Heart
HK$28,701 HKD