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0.51ct I SI2 Round Natural Diamond

EX • I/SI2 • GIA 7426956403

Certificate GIA 7426956403

Diamond specifications and retailer prices

From HK$6,598 HKD
As of November 4, 2026
Save HK$7,839 HKD (54%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: HK$14,437 HKD at MOH London · As of November 4, 2026
View at MOH London

About this 0.51ct natural round diamond

This 0.51ct natural round sits in the half to three-quarter carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 7426956403. Listed at 12 retailers as of November 4, 2026, with prices from HK$6,598 to HK$14,437, a HK$7,839 spread on the same certified stone. MOH London lists it at HK$14,437. 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
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle34°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 7426956403
Dimensions5.18 × 5.14 × 3.16 mm
L/W Ratio1.01
Top View
5.18 mm5.14 mm0.51 ctI / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 7426956403
Side View
Table 56.0%Crown 34°Girdle: MediumPavilion 41.2°Culet: NoneDepth 61.3%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: HK$14,437 HKD|Low: HK$5,641 HKD|High: HK$14,636 HKD|Avg: HK$9,482 HKD|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 5, 2026
Retailer 6HK$6,598 HKD
Retailer 5HK$6,668 HKD
Retailer 4HK$7,304 HKD
Retailer 7HK$7,429 HKD
Retailer 3HK$9,195 HKD
Retailer 2HK$10,269 HKD
MOH LondonHK$14,437 HKD

42 data points across 7 retailers

12 retailersHK$6,598 HKD to HK$14,437 HKD

B+
Cheapest Retailer
-
HK$6,598 HKD
Final sale: no returns
B+
Retailer 2
-
HK$6,668 HKD
View
B+
Retailer 3
-
HK$7,304 HKD
View
B+
Retailer 4
-
HK$7,429 HKD
View
Retailer 5
-
HK$8,253 HKD
View
Price last confirmed 10 days ago
B
Retailer 6
-
HK$8,787 HKD
View
B
Retailer 7
-
HK$8,787 HKD
View
B
Retailer 8
-
HK$9,100 HKD
View
B
Retailer 9
-
HK$9,195 HKD
View
B
Retailer 10
-
HK$10,269 HKD
View
Most Expensive
B
MOH London
F91F95726 · Nov 4
HK$14,437 HKD
£1,449 GBP
View
10 more retailers have this diamond
Prices start from HK$6,598 HKDSave up to HK$7,839 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 Round
HK$6,598 HKD