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Marquise|Natural|GIA

0.51ct I IF Marquise Natural Diamond

GD • I/IF • GIA 2556513837

Certificate GIA 2556513837

Diamond specifications and retailer prices

From $1,048 AUD
As of November 6, 2026
Save $464 AUD (31%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $1,512 AUD at Steven Stone · As of November 7, 2026
View at Steven Stone

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 standard cut grade stated by the retailer rather than the lab and certified by GIA 2556513837. Listed at 6 retailers as of November 6, 2026, with prices from $1,048 to $1,512, a $464 spread on the same certified stone. Steven Stone lists it at $1,512. 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
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2556513837
Dimensions8.11 × 4.21 × 2.66 mm
L/W Ratio1.93
Culet sizeNone
Key to symbols
Minor Details of Polish
Top View
8.11 mm4.21 mm0.51 ctI / IF
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2556513837
Side View
Table 62.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 63.2%

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: $1,231 AUD|Low: $898 AUD|High: $1,512 AUD|Avg: $1,157 AUD
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Steven Stone
November 7, 2026
Retailer 5$1,048 AUD
Retailer 3$1,054 AUD
Retailer 2$1,150 AUD
Retailer 1$1,231 AUD
Retailer 4$1,303 AUD
Steven Stone$1,512 AUD

40 data points across 6 retailers

6 retailers$1,048 AUD to $1,512 AUD

A
Cheapest Retailer
-
$1,048 AUD
A
Retailer 2
-
$1,054 AUD
View
Final sale: no returns
A
Retailer 3
-
$1,150 AUD
View
B+
Retailer 4
-
$1,231 AUD
View
B+
Retailer 5
-
$1,303 AUD
View
Most Expensive
B
Steven Stone
333590831 · Nov 7
$1,512 AUD
£818 GBP
View
5 more retailers have this diamond
Prices start from $1,048 AUDSave up to $464 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
$1,048 AUD