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Marquise|Natural|GIA

0.51ct I IF Marquise Natural Diamond

VG • I/IF • GIA 2566796464

Certificate GIA 2566796464

Diamond specifications and retailer prices

From $1,198 AUD
As of November 6, 2026
Save $2,872 AUD (71%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $4,069 AUD at NZ Jewellers · As of November 5, 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 IF clarity (flawless or internally-flawless), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 2566796464. Listed at 7 retailers as of November 5, 2026, with prices from $1,198 to $4,069, a $2,872 spread on the same certified stone. NZ Jewellers lists it at $4,069. 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
I
Colour
IF
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2566796464
Dimensions7.87 × 4.17 × 2.67 mm
L/W Ratio1.89
Key to symbols
Minor Details of Polish
Top View
7.87 mm4.17 mm0.51 ctI / IF
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2566796464
Side View
Table 58.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 64.1%

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: Nov 6
Current: $4,069 AUD|Low: $1,198 AUD|High: $4,069 AUD|Avg: $2,185 AUD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 6, 2026
Retailer 5$1,198 AUD
Retailer 2$1,455 AUD
Retailer 6$1,729 AUD
Retailer 4$2,372 AUD
Retailer 3$2,617 AUD
NZ Jewellers$4,069 AUD

5 data points across 6 retailers

7 retailers$1,198 AUD to $4,069 AUD

A
Cheapest Retailer
-
$1,198 AUD
Final sale: no returns
A
Retailer 2
-
$1,199 AUD
View
B+
Retailer 3
-
$1,455 AUD
View
B
Retailer 4
-
$1,729 AUD
View
B
Retailer 5
-
$2,372 AUD
View
B
Retailer 6
-
$2,617 AUD
View
Most Expensive
B
NZ Jewellers
514e88d5-4f44-4580-bbab-ec2a94c42177 · Nov 5
$4,069 AUD
$2,796 USD
View
6 more retailers have this diamond
Prices start from $1,198 AUDSave up to $2,872 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
$1,198 AUD