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Marquise|Natural|GIA

0.51ct J SI1 Marquise Natural Diamond

VG • J/SI1 • GIA 2567615927

Certificate GIA 2567615927

Diamond specifications and retailer prices

From HK$3,439 HKD
₹41,747 INR
As of October 30, 2026
Save HK$7,223 HKD (68%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: HK$14,398 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 very-good cut grade stated by the retailer rather than the lab and certified by GIA 2567615927. Listed at 11 retailers as of October 29, 2026, with a 210% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishVery Good
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2567615927
Dimensions7.95 × 4.20 × 2.69 mm
L/W Ratio1.89
Girdle conditionVery Thick
Top View
7.95 mm4.20 mm0.51 ctJ / SI1
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateGIA 2567615927
Side View
Table 55.0%CrownGirdle: Slightly ThickPavilionCulet: NoneDepth 64.0%

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: Oct 30
Current: HK$14,398 HKD|Low: HK$3,209 HKD|High: HK$14,398 HKD|Avg: HK$6,626 HKD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 31, 2026
Retailer 3HK$3,209 HKD
Retailer 7HK$3,439 HKD
Retailer 2HK$5,218 HKD
Retailer 11HK$5,610 HKD
Retailer 10HK$5,625 HKD
Retailer 4HK$5,636 HKD
Retailer 8HK$5,654 HKD
Retailer 5HK$6,805 HKD
Retailer 6HK$7,088 HKD
Retailer 9HK$10,662 HKD
NZ JewellersHK$14,398 HKD

9 data points across 11 retailers

11 retailersHK$3,439 HKD to HK$10,662 HKD

A
Cheapest Retailer
-
HK$3,439 HKD
₹41,747 INR
B+
Retailer 2
-
HK$4,509 HKD
A$884 AUD
View
B+
Retailer 3
-
HK$5,218 HKD
$665 USD
View
B
Retailer 4
-
HK$5,610 HKD
$715 USD
View
B
Retailer 5
-
HK$5,625 HKD
$717 USD
View
B
Retailer 6
-
HK$5,636 HKD
£566 GBP
View
B
Retailer 7
-
HK$5,654 HKD
£567 GBP
View
B
Retailer 8
-
HK$6,805 HKD
€826 EUR
View
B
Retailer 9
-
HK$7,088 HKD
ZAR 14,594 ZAR
View
C
Retailer 10
-
HK$10,662 HKD
£1,070 GBP
View
Most Expensive
NZ Jewellers
12549640-0603-44e0-8a69-9ebd64547ed1 · Oct 30
HK$14,398 HKD
$1,835 USD
View
Price under review
10 more retailers have this diamond
Prices start from HK$3,439 HKDSave up to HK$7,223 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$3,439 HKD