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Marquise|Natural|GIA

0.51ct I SI1 Marquise Natural Diamond

EX • I/SI1 • GIA 7561579444

Certificate GIA 7561579444

Diamond specifications and retailer prices

From HK$3,390 HKD
$432 USD
As of November 2, 2026
Save HK$11,801 HKD (78%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: HK$15,190 HKD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 0.51ct natural marquise diamond

This 0.51ct natural marquise 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 7561579444. Listed at 12 retailers as of October 30, 2026, with prices from HK$3,390 to HK$15,190, a HK$11,801 spread on the same certified stone. NZ Jewellers lists it at HK$15,190. 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
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 7561579444
Dimensions7.90 × 4.15 × 2.67 mm
L/W Ratio1.90
Girdle conditionVery Thick
Top View
7.90 mm4.15 mm0.51 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 7561579444
Side View
Table 60.0%CrownGirdle: Slightly ThickPavilionCulet: 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 2
Current: HK$15,190 HKD|Low: HK$3,390 HKD|High: HK$15,190 HKD|Avg: HK$6,837 HKD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 2, 2026
Retailer 4HK$3,390 HKD
Retailer 2HK$3,613 HKD
Retailer 12HK$4,472 HKD
Retailer 9HK$5,492 HKD
Retailer 11HK$5,837 HKD
Retailer 3HK$5,878 HKD
Retailer 5HK$5,945 HKD
Retailer 6HK$5,956 HKD
Retailer 7HK$7,151 HKD
Retailer 8HK$7,475 HKD
Retailer 10HK$11,200 HKD
NZ JewellersHK$15,190 HKD

17 data points across 12 retailers

12 retailersHK$3,390 HKD to HK$15,190 HKD

A
Cheapest Retailer
-
HK$3,390 HKD
$432 USD
Final sale: no returns
A
Retailer 2
-
HK$3,613 HKD
₹43,858 INR
View
Retailer 3
-
HK$4,472 HKD
$570 USD
View
Price last confirmed 15 days ago
B+
Retailer 4
-
HK$5,492 HKD
$700 USD
View
B+
Retailer 5
-
HK$5,837 HKD
$744 USD
View
B+
Retailer 6
-
HK$5,878 HKD
$749 USD
View
B+
Retailer 7
-
HK$5,945 HKD
£597 GBP
View
B+
Retailer 8
-
HK$5,956 HKD
£598 GBP
View
B+
Retailer 9
-
HK$7,151 HKD
€868 EUR
View
B
Retailer 10
-
HK$7,475 HKD
ZAR 15,391 ZAR
View
Retailer 11
-
HK$11,200 HKD
£1,124 GBP
View
Price last confirmed 7 days ago
Most Expensive
B
NZ Jewellers
32b23af8-fc48-47df-87b6-91c93d04c05e · Oct 30
HK$15,190 HKD
$1,936 USD
View
11 more retailers have this diamond
Prices start from HK$3,390 HKDSave up to HK$11,801 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$3,390 HKD