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Heart|Natural|GIA

0.51ct I SI1 Heart Natural Diamond

EX • I/SI1 • GIA 1537574585

Certificate GIA 1537574585

Diamond specifications and retailer prices

From HK$2,814 HKD
As of November 2, 2026
Save HK$1,027 HKD (27%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: HK$3,840 HKD at Brilliant Earth · As of November 2, 2026
View at Brilliant Earth

About this 0.51ct natural heart diamond

This 0.51ct natural heart sits in the half to three-quarter carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1537574585. Listed at 4 retailers as of November 2, 2026, with prices from HK$2,814 to HK$3,840, a HK$1,027 spread on the same certified stone. Brilliant Earth lists it at HK$3,840. 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

0.51
Carat
I
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1537574585
Dimensions5.69 × 5.15 × 3.13 mm
L/W Ratio1.10
Culet sizeNone
Key to symbols
Twinning Wisp
Top View
5.69 mm5.15 mm0.51 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1537574585
Side View
Table 60.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 55.0%

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 2
Current: HK$3,840 HKD|Low: HK$2,680 HKD|High: HK$4,389 HKD|Avg: HK$3,418 HKD|-12.5%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 2, 2026
Retailer 2HK$2,814 HKD
Retailer 4HK$2,939 HKD
Retailer 5HK$3,143 HKD
Retailer 3HK$3,644 HKD
Brilliant EarthHK$3,840 HKD

36 data points across 5 retailers

4 retailersHK$2,814 HKD to HK$3,840 HKD

A
Cheapest Retailer
-
HK$2,814 HKD
A
Retailer 2
-
HK$3,143 HKD
View
B+
Retailer 3
-
HK$3,644 HKD
View
Most Expensive
B+
Brilliant Earth
15915585A · Nov 2
HK$3,840 HKD
$490 USD
View
3 more retailers have this diamond
Prices start from HK$2,814 HKDSave up to HK$1,027 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
0.51ct Heart
HK$2,814 HKD