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Marquise|Natural|GIA

0.51ct J IF Marquise Natural Diamond

EX • J/IF • GIA 6541800432

Certificate GIA 6541800432

Diamond specifications and retailer prices

From $785 AUD
HK$4,300 HKD
As of October 30, 2026
Save $1,458 AUD (65%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $3,219 AUD at NZ Jewellers · As of September 25, 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 IF clarity (flawless or internally-flawless), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6541800432. Listed at 15 retailers as of October 29, 2026, with a 186% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Flawless clarity in sub-one-carat stones is rarely visible to the naked eye over VS1, so you are paying a meaningful premium for grade rather than appearance.

The 4Cs

0.51
Carat
J
Colour
IF
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
Pavilion angle39°
OriginNatural
Grading LabGIA
CertificateGIA 6541800432
Dimensions8.09 × 4.17 × 2.59 mm
L/W Ratio1.94
Top View
8.09 mm4.17 mm0.51 ctJ / IF
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 6541800432
Side View
Table 61.0%CrownGirdle: STK-VTKPavilion 39°Culet: NoneDepth 62.1%

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: $1,060 AUD|Low: $669 AUD|High: $2,329 AUD|Avg: $1,252 AUD|+1.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
October 30, 2026
Retailer 11$785 AUD
Retailer 3$870 AUD
Retailer 13$892 AUD
Retailer 5$976 AUD
Retailer 10$986 AUD
Retailer 1$1,060 AUD
Retailer 14$1,217 AUD
Retailer 15$1,227 AUD
Retailer 6$1,259 AUD
Retailer 4$1,328 AUD
Retailer 8$1,332 AUD
Retailer 12$1,390 AUD
Retailer 9$1,475 AUD
Retailer 7$1,498 AUD
Retailer 2$2,243 AUD

33 data points across 15 retailers

15 retailers$785 AUD to $2,243 AUD

A
Cheapest Retailer
-
$785 AUD
HK$4,300 HKD
A
Retailer 2
-
$870 AUD
$610 USD
View
Retailer 3
-
$976 AUD
SGD 924 SGD
View
Price last confirmed 10 days ago
A
Retailer 4
-
$986 AUD
$691 USD
View
A
Retailer 5
-
$1,060 AUD
£585 GBP
View
B+
Retailer 6
-
$1,217 AUD
$853 USD
View
B+
Retailer 7
-
$1,227 AUD
$860 USD
View
B+
Retailer 8
-
$1,259 AUD
$883 USD
View
B+
Retailer 9
-
$1,328 AUD
$930 USD
View
B+
Retailer 10
-
$1,332 AUD
€889 EUR
View
Retailer 11
-
$1,390 AUD
$974 USD
View
Price last confirmed 10 days ago
Retailer 12
-
$1,475 AUD
ZAR 16,699 ZAR
View
Price last confirmed 12 days ago
Retailer 13
-
$1,498 AUD
View
Price last confirmed 28 days ago
B
Retailer 14
-
$2,243 AUD
£1,238 GBP
View
Most Expensive
NZ Jewellers
c2470ebc-5229-4a66-b206-151c4eaee846 · Sep 25
$3,219 AUD
$2,256 USD
View
Price last confirmed 38 days ago
14 more retailers have this diamond
Prices start from $785 AUDSave up to $1,458 AUD

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
$785 AUD