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Marquise|Natural|GIA

0.51ct J SI1 Marquise Natural Diamond

GD • J/SI1 • GIA 1323584591

Certificate GIA 1323584591

Diamond specifications and retailer prices

From HK$4,088 HKD
$521 USD
As of November 2, 2026
Save HK$9,808 HKD (71%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: HK$13,895 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 J colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 1323584591. Listed at 9 retailers as of October 30, 2026, with prices from HK$4,088 to HK$13,895, a HK$9,808 spread on the same certified stone. NZ Jewellers lists it at HK$13,895. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.51
Carat
J
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 1323584591
Dimensions7.29 × 4.28 × 2.69 mm
L/W Ratio1.70
Culet sizeNone
Key to symbols
Crystal
Top View
7.29 mm4.28 mm0.51 ctJ / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceMedium
CertificateGIA 1323584591
Side View
Table 59.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 62.8%

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$13,895 HKD|Low: HK$3,758 HKD|High: HK$14,186 HKD|Avg: HK$7,009 HKD|-2.0%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 2, 2026
Retailer 8HK$4,088 HKD
Retailer 3HK$4,551 HKD
Retailer 10HK$5,016 HKD
Retailer 2HK$5,432 HKD
Retailer 5HK$5,963 HKD
Retailer 9HK$6,691 HKD
Retailer 6HK$6,840 HKD
Retailer 7HK$7,373 HKD
Retailer 4HK$10,234 HKD
NZ JewellersHK$13,895 HKD

43 data points across 10 retailers

9 retailersHK$4,088 HKD to HK$13,895 HKD

A
Cheapest Retailer
-
HK$4,088 HKD
$521 USD
Final sale: no returns
B+
Retailer 2
-
HK$4,551 HKD
$580 USD
View
B
Retailer 3
-
HK$5,432 HKD
£545 GBP
View
B
Retailer 4
-
HK$5,963 HKD
$760 USD
View
Retailer 5
-
HK$6,691 HKD
A$1,312 AUD
View
Price last confirmed 30 days ago
B
Retailer 6
-
HK$6,840 HKD
ZAR 14,084 ZAR
View
B
Retailer 7
-
HK$7,373 HKD
$940 USD
View
C
Retailer 8
-
HK$10,234 HKD
£1,027 GBP
View
Most Expensive
C
NZ Jewellers
1ecc8406-127a-40bc-af56-d78a0c727c9b · Oct 30
HK$13,895 HKD
$1,771 USD
View
8 more retailers have this diamond
Prices start from HK$4,088 HKDSave up to HK$9,808 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$4,088 HKD