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Marquise|Natural|GIA

0.51ct K SI1 Marquise Natural Diamond

EX • K/SI1 • GIA 7566603273

Certificate GIA 7566603273

Diamond specifications and retailer prices

From HK$3,232 HKD
As of November 6, 2026
Save HK$3,391 HKD (51%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: HK$6,623 HKD at Frank Darling · As of November 6, 2026
View at Frank Darling

About this 0.51ct natural marquise diamond

This 0.51ct natural marquise sits in the half to three-quarter carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 7566603273. Listed at 11 retailers as of November 6, 2026, with prices from HK$3,232 to HK$6,623, a HK$3,391 spread on the same certified stone. Frank Darling lists it at HK$6,623. 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
K
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle36.24°
Pavilion angle41.54°
OriginNatural
Grading LabGIA
CertificateGIA 7566603273
Dimensions8.13 × 4.12 × 2.65 mm
L/W Ratio1.97
Culet sizeNone
Top View
8.13 mm4.12 mm0.51 ctK / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 7566603273
Side View
Table 58.0%Crown 36.24°Girdle: THN-VTKPavilion 41.54°Culet: NoneDepth 64.4%

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$6,623 HKD|Low: HK$3,232 HKD|High: HK$6,623 HKD|Avg: HK$4,315 HKD
Frank Darling
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 8HK$3,232 HKD
Retailer 10HK$3,373 HKD
Retailer 6HK$3,515 HKD
Retailer 11HK$3,656 HKD
Retailer 5HK$3,876 HKD
Retailer 3HK$4,197 HKD
Retailer 9HK$4,519 HKD
Retailer 2HK$4,739 HKD
Retailer 7HK$4,840 HKD
Retailer 4HK$5,547 HKD
Frank DarlingHK$6,623 HKD

23 data points across 11 retailers

11 retailersHK$3,232 HKD to HK$6,623 HKD

A
Cheapest Retailer
-
HK$3,232 HKD
A
Retailer 2
-
HK$3,373 HKD
View
A
Retailer 3
-
HK$3,515 HKD
View
A
Retailer 4
-
HK$3,656 HKD
View
A
Retailer 5
-
HK$3,876 HKD
View
B+
Retailer 6
-
HK$4,197 HKD
View
B+
Retailer 7
-
HK$4,519 HKD
View
B+
Retailer 8
-
HK$4,739 HKD
View
B+
Retailer 9
-
HK$4,840 HKD
View
B+
Retailer 10
-
HK$5,547 HKD
View
Most Expensive
B
Frank Darling
2702647HK · Nov 6
HK$6,623 HKD
$844 USD
View
10 more retailers have this diamond
Prices start from HK$3,232 HKDSave up to HK$3,391 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 Marquise
HK$3,232 HKD