CaratHunter
Plans
Marquise|Natural|GIA

0.51ct J SI2 Marquise Natural Diamond

EX • J/SI2 • GIA 1563008847

Certificate GIA 1563008847

Diamond specifications and retailer prices

From $709 AUD
As of November 4, 2026
Save $1,704 AUD (71%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $2,413 AUD at NZ Jewellers · As of November 3, 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 SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1563008847. Listed at 12 retailers as of November 3, 2026, with prices from $709 to $2,413, a $1,704 spread on the same certified stone. NZ Jewellers lists it at $2,413. 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
J
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1563008847
Dimensions8.82 × 4.16 × 2.43 mm
L/W Ratio2.12
Girdle conditionFaceted
Culet sizeNone
Top View
8.82 mm4.16 mm0.51 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 1563008847
Side View
Table 62.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 58.4%

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 4
Current: $955 AUD|Low: $651 AUD|High: $1,797 AUD|Avg: $1,018 AUD|+4.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 5, 2026
Retailer 4$709 AUD
Retailer 6$828 AUD
Retailer 8$888 AUD
Retailer 5$930 AUD
Retailer 1$955 AUD
Retailer 7$961 AUD
Retailer 3$1,148 AUD
Retailer 2$1,774 AUD

44 data points across 8 retailers

12 retailers$709 AUD to $2,413 AUD

A
Cheapest Retailer
-
$709 AUD
Final sale: no returns
A
Retailer 2
-
$770 AUD
View
Retailer 3
-
$828 AUD
View
Price last confirmed 8 days ago
B+
Retailer 4
-
$828 AUD
View
B+
Retailer 5
-
$888 AUD
View
Retailer 6
-
$888 AUD
View
Price last confirmed 61 days ago
B+
Retailer 7
-
$888 AUD
View
B+
Retailer 8
-
$955 AUD
View
B+
Retailer 9
-
$961 AUD
View
B
Retailer 10
-
$1,148 AUD
View
B
Retailer 11
-
$1,774 AUD
View
Most Expensive
C
NZ Jewellers
6bb20c1b-f3cc-4e77-b777-68db4d99320e · Nov 3
$2,413 AUD
$1,658 USD
View
11 more retailers have this diamond
Prices start from $709 AUDSave up to $1,704 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
$709 AUD