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Marquise|Natural|GIA

0.51ct G SI2 Marquise Natural Diamond

EX • G/SI2 • GIA 2554757133

Certificate GIA 2554757133

Diamond specifications and retailer prices

From HK$2,665 HKD
SGD 459 SGD
As of November 1, 2026
Save HK$3,418 HKD (56%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: HK$6,082 HKD at Frank Darling · As of November 2, 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 G colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2554757133. Listed at 7 retailers as of November 1, 2026, with prices from HK$2,665 to HK$6,082, a HK$3,418 spread on the same certified stone. Frank Darling lists it at HK$6,082. 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
G
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2554757133
Dimensions7.70 × 4.13 × 2.70 mm
L/W Ratio1.86
Culet sizeNone
Top View
7.70 mm4.13 mm0.51 ctG / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateGIA 2554757133
Side View
Table 61.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 65.3%

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 1
Current: HK$6,082 HKD|Low: HK$1,949 HKD|High: HK$6,545 HKD|Avg: HK$3,965 HKD|-7.1%
Frank Darling
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 28, 2026
Retailer 8HK$1,949 HKD
Retailer 5HK$2,665 HKD
Retailer 4HK$2,711 HKD
Retailer 3HK$3,132 HKD
Retailer 2HK$3,467 HKD
Retailer 10HK$3,680 HKD
Retailer 6HK$4,103 HKD
Retailer 7HK$5,141 HKD
Retailer 9HK$5,182 HKD
Frank DarlingHK$6,082 HKD

24 data points across 10 retailers

7 retailersHK$2,665 HKD to HK$6,082 HKD

A
Cheapest Retailer
-
HK$2,665 HKD
SGD 459 SGD
A
Retailer 2
-
HK$2,711 HKD
SGD 467 SGD
View
A
Retailer 3
-
HK$3,132 HKD
£314 GBP
View
A
Retailer 4
-
HK$3,467 HKD
$442 USD
View
A
Retailer 5
-
HK$3,680 HKD
$469 USD
View
A
Retailer 6
-
HK$4,103 HKD
$523 USD
View
Most Expensive
B+
Frank Darling
2665115HK · Nov 2
HK$6,082 HKD
$775 USD
View
6 more retailers have this diamond
Prices start from HK$2,665 HKDSave up to HK$3,418 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$2,665 HKD