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Marquise|Natural|GIA

0.51ct E SI2 Marquise Natural Diamond

VG • E/SI2 • GIA 6561140322

Certificate GIA 6561140322

Diamond specifications and retailer prices

From $901 AUD
As of November 6, 2026
Save $604 AUD (40%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $1,505 AUD at Frank Darling · As of November 6, 2026
View at Frank Darling

About this 0.51ct natural marquise diamond

This 0.51ct natural marquise sits in the half to three-quarter carat band, graded E colour (colourless) and SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6561140322. Listed at 9 retailers as of November 6, 2026, with prices from $901 to $1,505, a $604 spread on the same certified stone. Frank Darling lists it at $1,505. 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
E
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6561140322
Dimensions7.58 × 4.09 × 2.61 mm
L/W Ratio1.85
Culet sizeNone
Top View
7.58 mm4.09 mm0.51 ctE / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6561140322
Side View
Table 59.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 63.9%

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: $1,505 AUD|Low: $900 AUD|High: $1,549 AUD|Avg: $1,202 AUD|-2.9%
Frank Darling
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 8$901 AUD
Retailer 4$906 AUD
Retailer 5$921 AUD
Retailer 7$1,057 AUD
Retailer 6$1,170 AUD
Retailer 3$1,254 AUD
Retailer 2$1,321 AUD
Retailer 9$1,350 AUD
Frank Darling$1,505 AUD

39 data points across 9 retailers

9 retailers$901 AUD to $1,505 AUD

A
Cheapest Retailer
-
$901 AUD
A
Retailer 2
-
$906 AUD
View
A
Retailer 3
-
$921 AUD
View
A
Retailer 4
-
$1,057 AUD
View
B+
Retailer 5
-
$1,170 AUD
View
B+
Retailer 6
-
$1,254 AUD
View
B+
Retailer 7
-
$1,321 AUD
View
B+
Retailer 8
-
$1,350 AUD
View
Most Expensive
B
Frank Darling
2679392HK · Nov 6
$1,505 AUD
$1,054 USD
View
8 more retailers have this diamond
Prices start from $901 AUDSave up to $604 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
$901 AUD