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Heart|Natural|GIA

1.51ct F SI1 Heart Natural Diamond

EX • F/SI1 • GIA 5553605892

Certificate GIA 5553605892

Diamond specifications and retailer prices

From HK$33,534 HKD
$4,274 USD
As of October 31, 2026
Save HK$6,379 HKD (16%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: HK$39,913 HKD at Blue Nile · As of October 31, 2026
View at Blue Nile

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 SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5553605892. Listed at 7 retailers as of October 31, 2026, with prices from HK$33,534 to HK$39,913, a HK$6,379 spread on the same certified stone. Blue Nile lists it at HK$39,913. 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
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5553605892
Dimensions6.82 × 8.12 × 4.51 mm
L/W Ratio1.19
Culet sizeNone
Key to symbols
Twinning Wisp, Feather, Indented Natural
Top View
6.82 mm8.12 mm1.51 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5553605892
Side View
Table 59.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 55.6%

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: Oct 31
Current: HK$39,913 HKD|Low: HK$30,608 HKD|High: HK$46,049 HKD|Avg: HK$37,467 HKD|-13.3%
Blue Nile
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 2, 2026
Retailer 5HK$33,534 HKD
Retailer 2HK$34,333 HKD
Retailer 4HK$34,680 HKD
Retailer 7HK$35,318 HKD
Retailer 3HK$35,786 HKD
Retailer 6HK$36,271 HKD
Blue NileHK$39,913 HKD

42 data points across 7 retailers

7 retailersHK$33,534 HKD to HK$39,913 HKD

A
Cheapest Retailer
-
HK$33,534 HKD
$4,274 USD
A
Retailer 2
-
HK$34,333 HKD
₹416,746 INR
View
A
Retailer 3
-
HK$34,680 HKD
$4,420 USD
View
Final sale: no returns
A
Retailer 4
-
HK$35,318 HKD
MYR 18,336 MYR
View
A
Retailer 5
-
HK$35,786 HKD
£3,591 GBP
View
A
Retailer 6
-
HK$36,271 HKD
SGD 6,247 SGD
View
Most Expensive
A
Blue Nile
29530598 · Oct 31
HK$39,913 HKD
$5,087 USD
View
6 more retailers have this diamond
Prices start from HK$33,534 HKDSave up to HK$6,379 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$33,534 HKD