Heart|Natural|GIA

0.51ct I SI1 Heart Natural Diamond

ID • I/SI1 • GIA 7546408346

Certificate GIA 7546408346

Diamond specifications and retailer prices

From HK$4,655 HKD
As of November 5, 2026
13 retailers carry this diamond
Most expensive: HK$14,954 HKD at NZ Jewellers · As of September 25, 2026
View at NZ Jewellers

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 7546408346. Listed at 13 retailers as of November 5, 2026. 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
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Pavilion angle40.7°
OriginNatural
Grading LabGIA
CertificateGIA 7546408346
Dimensions4.80 × 5.46 × 3.26 mm
L/W Ratio1.14
Girdle conditionFaceted
Top View
4.80 mm5.46 mm0.51 ctI / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 7546408346
Side View
Table 58.0%CrownGirdle: MED-VTKPavilion 40.7°Culet: NoneDepth 59.7%

Caratlytics Score

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B+
Very Good
Strong quality and value balance
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Price History

Last verified: Nov 5
Current: HK$4,655 HKD|Low: HK$2,547 HKD|High: HK$9,115 HKD|Avg: HK$4,963 HKD|+0.3%
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
Retailer 14
November 5, 2026
Retailer 9HK$3,104 HKD
Retailer 11HK$3,354 HKD
Retailer 4HK$3,448 HKD
Retailer 3HK$3,864 HKD
Retailer 14HK$3,927 HKD
Retailer 7HK$4,303 HKD
Retailer 6HK$4,326 HKD
Retailer 1HK$4,655 HKD
Retailer 2HK$5,157 HKD
Retailer 12HK$5,251 HKD
Retailer 10HK$5,416 HKD
Retailer 8HK$5,557 HKD
Retailer 5HK$6,043 HKD
Retailer 13HK$8,457 HKD

29 data points across 14 retailers

13 retailers

Retailer 1
-
HK$3,104 HKD
Price last confirmed 16 days ago
Retailer 2
-
HK$3,448 HKD
View
Price last confirmed 17 days ago
Retailer 3
-
HK$3,864 HKD
View
Price last confirmed 17 days ago
Retailer 4
-
HK$3,927 HKD
View
Price last confirmed 20 days ago
Retailer 5
-
HK$4,303 HKD
View
Price last confirmed 16 days ago
B+
Retailer 6
-
HK$4,655 HKD
View
Retailer 7
-
HK$5,157 HKD
View
Price last confirmed 17 days ago
Retailer 8
-
HK$5,251 HKD
View
Price last confirmed 15 days ago
Retailer 9
-
HK$5,416 HKD
View
Price last confirmed 17 days ago
Retailer 10
-
HK$5,557 HKD
View
Price last confirmed 17 days ago
Retailer 11
-
HK$6,043 HKD
View
Price last confirmed 35 days ago
Retailer 12
-
HK$8,457 HKD
View
Price last confirmed 17 days ago
Most Expensive
NZ Jewellers
2f3c9433-d4bb-4ac0-919d-097aacbe32e3 · Sep 25
HK$14,954 HKD
$1,908 USD
View
Price under review
12 more retailers have this diamond
Prices start from HK$4,655 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.

B+
0.51ct Heart
HK$4,655 HKD